Bibliografias temáticas / Colour camera

Índice

Artigos de revistas
Teses / dissertações
Livros
Capítulos de livros
Trabalhos de conferências
Relatórios de organizações

Literatura científica selecionada sobre o tema "Colour camera"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 7 de fevereiro de 2022

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Consulte a lista de atuais artigos, livros, teses, anais de congressos e outras fontes científicas relevantes para o tema "Colour camera".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Artigos de revistas sobre o assunto "Colour camera"

Dugonik, Bogdan, Aleksandra Dugonik, Maruška Marovt e Marjan Golob. "Image Quality Assessment of Digital Image Capturing Devices for Melanoma Detection". Applied Sciences 10, n.º 8 (21 de abril de 2020): 2876. http://dx.doi.org/10.3390/app10082876.

Texto completo da fonte

Resumo:

The fast-growing incidence of skin cancer, especially melanoma, is the guiding principle for intense development of various digital image-capturing devices providing easier recognition of melanoma by dermatologists. Handheld and digital dermoscopy, following of mole changes with smartphones and digital analysing of mole images, is based on evaluation of the colours, shape and deep structures in the skin moles. Incorrect colour information of an image, under- or overexposed images, lack of sharpness and low resolution of the images, can lead to melanoma misdiagnosis. The purpose of our study was to determine the colour error in the image according to the given lighting conditions and different camera settings. We focused on measuring the image quality parameters of smartphones and high-resolution cameras to compare them with the results of state-of-the-art dermoscopy device systems. We applied standardised measuring methods. The spatial frequency response method was applied for measuring the sharpness and resolution of the tested camera systems. Colour images with known reference values were captured from the test target, to evaluate colour error as a CIELAB (Commission Internationale de l’Eclairage) ΔE*ab colour difference as seen by a human observer. The results of our measurements yielded two significant findings. First, all tested cameras produced inaccurate colours when operating in automatic mode, and second, the amount of sharpening was too intensive. These deficiencies can be eliminated through adjusting the camera parameters manually or by image post-production. The presented two-step camera calibration procedure improves the colour accuracy of captured clinical and dermoscopy images significantly.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Nobbs, J. H., e C. Connolly. "Camera‐based colour inspection". Sensor Review 20, n.º 1 (março de 2000): 14–20. http://dx.doi.org/10.1108/02602280010311347.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Hakuto International (UK) Ltd. "Compact colour card camera". Displays 14, n.º 3 (julho de 1993): 185. http://dx.doi.org/10.1016/0141-9382(93)90044-6.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Connolly, Christine, William Leung e Jim Nobbs. "Colour measurement by video camera". Journal of the Society of Dyers and Colourists 111, n.º 12 (22 de outubro de 2008): 373–75. http://dx.doi.org/10.1111/j.1478-4408.1995.tb01687.x.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Bhat, Vidya S., SanathKumar Shetty, Khizer Ishaquddin Syed e Sanha Razdan. "Comparison of Tooth Shade Colour Recorded Using Digital Single Lens Reflex Camera and Mobile Cameras with Manually Adjusted Parameters". Journal of Evolution of Medical and Dental Sciences 10, n.º 32 (9 de agosto de 2021): 2577–81. http://dx.doi.org/10.14260/jemds/2021/528.

Texto completo da fonte

Resumo:

BACKGROUND Visual selection by using shade guides is the most common but also the most subjective technique, influenced by factors such as the age of the observer and eye fatigue. Digital imaging provides a practical and consistent method of determining tooth colour. A suitable alternative for DSLR cameras may be a mobile phone camera. Recent smart phones have manual control which helps to manually adjust parameters. Female patients usually use lipstick, which may alter the tooth colour perception, but there is no clinical evidence showing the effect of lipstick on tooth shade. The purpose of this study was to evaluate the reliability of using phone camera and the effect of lipstick on the shade of the tooth. METHODS This study was conducted on 11 female individuals within the age of 18 - 25 years. Eight photographs were made of all 11 participants, using 3 different smart phone cameras and Nikon D3400 DSLR camera with twin flash and cross-polaroid filter was used as the control group. The parameters of all the cameras were standardized for every image. All digital photographs were evaluated with a Digital Colour Meter software, which gave the parameters in the RGB colour codes and CIE L, a*b* colour space. RESULTS There was no statistically significant difference in the L* and R* values between the control and the smartphone camera groups. There was no statistically significant difference in L* and R* values before and after applying lipstick in all the groups. There was no significant difference in L* and R* values in all the groups before and after applying lipstick. CONCLUSIONS Recent smartphone cameras with manually adjusted parameters including unprocessed or RAW images can be used as a reliable tool for shade matching. Shade matching can be done even after applying lipstick, as there was no difference seen in this study. KEY WORDS Esthetics, Shade, Lipstick, Spectophotometer, Shade

Estilos ABNT, Harvard, Vancouver, APA, etc.

Lee, Wong Poh, Mohd Azam Osman, Abdullah Zawawi Talib e Khairun Yahya. "Tracking Multiple Fishes Using Colour Changes Identification and Enhanced Object Tracking Algorithm". Applied Mechanics and Materials 284-287 (janeiro de 2013): 1528–32. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.1528.

Texto completo da fonte

Resumo:

Tracking multiple fishes using computational methods have become a research endeavor among researchers. Different concepts have been taken such as installing water sensors and video cameras to identify movement speed, colours, shapes and swimming patterns displayed by the fishes. In this research, an enhanced algorithm consisting of motion detection algorithm and condensation algorithm is proposed. This algorithm is further integrated with colour changes identification technique which considers the changes in colour on fishes. This is to identify overlapping fishes and to detect the distance between the camera and the fishes in the water. In our case study, a cultured fish tank installed with water sensors to monitor water pH, dissolved oxygen and temperature is set up together with two network cameras. Koi fishes are chosen due to their active swimming behaviour, variety of colours and easy-to-adapt habitat in the water. A real-time prototype system which models the fish swimming pattern consisting of the enhanced algorithm and the colour changes identification is developed.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Wiebe, K. L., e G. R. Bortolotti. "Variation in colour within a population of northern flickers: a new perspective on an old hybrid zone". Canadian Journal of Zoology 79, n.º 6 (1 de junho de 2001): 1046–52. http://dx.doi.org/10.1139/z01-065.

Texto completo da fonte

Resumo:

We used a digital camera to quantify the colour of the tail feathers of 245 northern flickers (Colaptes auratus) in central British Columbia and investigate the frequency of colour morphs in the population of hybrids. The colour values generated by the camera corresponded well to the conventional method of ranking colours by eye, but was advantageous because it provided finer discrimination and a continuous colour variable. Rectrix colour varied in a continuum from the yellow of C. a. auratus to the red of C. a. cafer. By experimentally exposing red and yellow feathers to sunlight we showed that the intermediate orange colours were not a result of secondary fading of the carotenoid pigments. The distribution of colours in the population was bimodal. A paucity of intermediate phenotypes (orange birds) could not be explained by their mortality because return rates of birds to our study area was not associated with colour. New immigrants into the population tended to resemble parental types more often than hybrids. Assortative mating by colour in this population may tend to keep the subspecies separate, contrary to the situation in more southerly areas of the hybrid zone.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Pointer, M. R., G. G. Attridge e R. E. Jacobson. "Practical camera characterization for colour measurement". Imaging Science Journal 49, n.º 2 (janeiro de 2001): 63–80. http://dx.doi.org/10.1080/13682199.2001.11784369.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Shyu, M. James, e Margaret Chen Lee. "Non-Contact Color Analysis and Digital Archive Method for Blue-and-White Porcelain by Using Spectral Imaging Technology". International Journal of Humanities and Arts Computing 7, supplement (março de 2013): 189–200. http://dx.doi.org/10.3366/ijhac.2013.0069.

Texto completo da fonte

Resumo:

The unique colour representation of Oriental art work distinguishes itself from what has been seen in Western art work. Not only the traditional Oriental watercolour paintings but also the ancient Chinese porcelains show a great deal of interesting colours that have been archived by digital camera in digital archive practice. However, the majority of the current digital cameras operate with RGB filters, which record every pixel in a tri-chromatic manner. There are several limitations for such a tri-chromatic camera. One is that it describes the colour of the object only by three primary colours. Another is that the image captured is strongly influenced by the illumination at the scene, such that the archived image appears as it does specifically under that lighting condition, not as the original object itself. With such limitations, a problem called ‘metamerism’ may occur when an object is viewed under different illuminations. This creates a serious problem when colour is a critical factor in the digital archiving process. Spectral imaging technology is capable of capturing the colour in spectral form, and the spectral reflectance of each pixel is recorded accordingly. With consequent analysis and process, art works can be archived with high precision spectral data with the advantages of resolving the issue of metamerism and of reproducing the art work under any kind of illumination. Another advantage of spectral imaging technology is that it captures and analyzes the spectral data of an art work without any physical contact. In this study ancient Chinese blue-and-white porcelains collected by the Hwa-Kang Museum of the Chinese Culture University are digitised by spectral imaging technology. A custom-built spectral camera is used to capture the spectral image by using a new spectrograph device. Statistics analysis is used to extract the primary spectral reflectance from the captured spectral data. Comparisons can then be made to explore the differences among the colour primaries of the porcelains. This new spectral system and the colour analysis of blue-and-white porcelain as well as the resulting spectral characteristics of this porcelain can be a new benchmark for the museum community in digital archiving.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Kolláth, Zoltán, Dénes Száz, Kai Pong Tong e Kornél Kolláth. "The Colour of the Night Sky". Journal of Imaging 6, n.º 9 (5 de setembro de 2020): 90. http://dx.doi.org/10.3390/jimaging6090090.

Texto completo da fonte

Resumo:

The measurement of night sky quality has become an important task in night sky conservation. Modern measurement techniques involve mainly a calibrated digital camera or a spectroradiometer. However, panchromatic devices are still prevalent to this day, even in the absence of determining the spectral information of the night sky. In the case of multispectral measurements, colour information is currently presented in multiple ways. One of the most frequently used metrics is correlated colour temperature (CCT), which is not without its limitation for the purpose of describing especially the colour of natural night sky. Moreover, visually displaying the colour of the night sky in a quantitatively meaningful way has not attracted sufficient attention in the community of astronomy and light pollution research—most photographs of the night sky are post-processed in a way for aesthetic attractiveness rather than accurate representation of the night sky. The spectrum of the natural night sky varies in a wide range depending on solar activity and atmospheric properties. The most noticeable variation in the visible range is the variation of the atomic emission lines, primarily the green oxygen and orange sodium emission. Based on the accepted models of night sky emission, we created a random spectral database which represents the possible range of night sky radiance distribution. We used this spectral database as a learning set, to create a colour transformation between different colour spaces. The spectral sensitivity of some digital cameras is also used to determine an optimal transformation matrix from camera defined coordinates to real colours. The theoretical predictions were extended with actual spectral measurements in order to test the models and check the local constituents of night sky radiance. Here, we present an extended modelling of night sky colour and recommendations of its consistent measurement, as well as methods of visualising the colour of night sky in a consistent way, namely using the false colour enhancement.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mais fontes

Teses / dissertações sobre o assunto "Colour camera"

Cheung, Tsz Lock Vien. "Approaches to colour camera characterization". Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414540.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Leung, Tin Wah William. "High precision camera-based colour inspection of industrial products". Thesis, University of Huddersfield, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338605.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Gil, Rodríguez Raquel. "Digital camera colour processing pipeline for high dynamic range imaging and colour stabilisation for cinema". Doctoral thesis, Universitat Pompeu Fabra, 2018. http://hdl.handle.net/10803/664378.

Texto completo da fonte

Resumo:

In this thesis we focus on two diﬀerent image processing challenges: high dynamic range (HDR) image/video generation, and colour matching. In both cases, we redeﬁne these tasks by taking into account the prior knowledge from the diﬀerent processes the camera performs when capturing the image. High dynamic range techniques have recently become very popular, thanks to the emergence of HDR recording and displaying technology. We propose two diﬀerent approaches for HDR creation, one for still images, and one for video creation. In case of still images, most of previous methods follow a multiple exposure combination approach. These methods share a set of building assump-tions: i) the full dynamic range of the scene can be recovered, ii) colour channels are independent, and iii) the camera response function remains constant while varying the exposure time. First, we highlight how these assumptions do not apply in general for digital cameras, and then, we propose a method to im-prove multiple exposure combination. Our results outperform state-of-the-art multiple exposure techniques.In case of HDR video, we present a simple and aﬀordable method to gen-erate high quality video from an HDR scene. Our input is an interlaced video alternating row pairs with diﬀerent ISO values, as some DSLR camera models can provide. The proposed algorithm involves two main steps: i) the compu-tation of two single-ISO full-frame images (one for each ISO value) using an inpainting-based deinterlacing method, and ii) the linear combination of the full-frame ISO’s into a single HDR frame. Finally, the results are tone-mapped into an LDR frame ready for display. Results are free of ghosting artefacts and present little noise.Colour matching approaches attempt to transfer the colours of a reference image, to another source image. In this context, we focus on colour matching two images taken from the same scene. First, we propose a method that mod-iﬁes logarithmic encoded images, used in cinema for HDR content, in order to behave as gamma encoded images, used in most digital cameras. Then, we ex-tend a previous approach deﬁned just for gamma encoded images. We redeﬁne the transformation between the two images, by considering a projective trans-form, and we estimate the method parameters in a single optimisation step. The method outperforms the state-of-the-art methods and can handle real-life examples.
En aquesta tesi ens centrem en dos problemes de processament d’imatges diferents: generació d’imatge/vídeo d’alt rang dinàmic (HDR) i coloració. En tots dos casos, redeﬁnim aquestes tasques tenint en compte el coneixement previ dels diferents processos que realitza la càmera en capturar la imatge. Actualment, les tèniques d’alt rang dinàmic s’han tornat molt populars, gràcies a l’aparició de la tecnologia per capturar i visualitzar HDR. Proposem dos enfocaments diferents per a la creació d’HDR, un per a imatges i un altre per a la creació de video. En el cas d’imatges, la majoria de mètodes combinen múltiples exposicions. Aquests mètodes comparteixen un conjunt d’hipòtesis: i) la recuperació del rang dinàmic complet de l’escena, ii) els canals de color són independents, i iii) la funció de resposta de la càmera es manté constant mentre es varia el temps d’exposició. En primer lloc, destaquem com aquestes suposicions no s’apliquen, en general, a les càmeres digitals, i després proposem un mètode per millorar aquesta tècnica. Els nostres resultats superen l’estat de l’art. En el cas de vídeo HDR, presentem un mètode senzill i assequible per generar vídeos d’alta qualitat d’una escena HDR. El nostre input és un vídeo entrellaçat alternant parells de ﬁleres amb diferents valors d’ISO, com alguns models de càmeres DSLR poden proporcionar. L’algorisme inclou dos passos principals: i) el càlcul de dues imatges full-frame ISO (una per a cada valor d’ISO) utilizant un mètode de desentrella¸cat basat en inpainting, ii) la combinació lineal dels ISOs full-frame en un HDR únic. Finalment, els resultats es mapegen tonalment per obtenir un LDR per mostrar per pantalla. Els resultats no tenen artefactes de ghosting i presenten poc soroll. Els mètodes d’igualació de colors intenten transferir els colors d’una imatge de referència, a una altra imatge d’origen. En aquest context, ens centrem en el cas de dues imatges capturades a la mateixa escena. En primer lloc, proposem un mètode que modiﬁca imatges codiﬁcades logarítmicament, utilitzades en el cinema per a continguts HDR, per tal de comportar-se com imatges gamma codiﬁcades, que s’utilitzen en la majoria de les càmeres digitals. A continuació, extenem un mètode deﬁnit prèviament només per imatges gamma codiﬁcades, redeﬁnint la transformació entre les dues imatges, considerant una transformació projectiva i estimant els paràmetres del mètode en un únic pas d’optimització. El mètode supera l’estat de l’art i pot tractar exemples de la vida real.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Ismail, S. J. "Computing techniques and models for colour correction systems". Thesis, University of Bradford, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381027.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Sandberg, David. "Model-Based Video Coding Using a Colour and Depth Camera". Thesis, Linköpings universitet, Datorseende, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-68737.

Texto completo da fonte

Resumo:

In this master thesis, a model-based video coding algorithm has been developed that uses input from a colour and depth camera, such as the Microsoft Kinect. Using a model-based representation of a video has several advantages over the commonly used block-based approach, used by the H.264 standard. For example, videos can be rendered in 3D, be viewed from alternative views, and have objects inserted into them for augmented reality and user interaction. This master thesis demonstrates a very efficient way of encoding the geometry of a scene. The results of the proposed algorithm show that it can reach very low bitrates with comparable results to the H.264 standard.
I detta examensarbete har en modellbaserad videokodningsalgoritm utvecklats som använder data från en djup- och färgkamera, exempelvis Microsoft Kinect. Det finns flera fördelar med en modellbaserad representation av en video över den mer vanligt förekommande blockbaserade varianten, vilket används av bland annat H.264. Några exempel är möjligheten att rendera videon i 3D samt från alternativa vyer, placera in objekt i videon samt möjlighet för användaren att interagera med scenen. Detta examensarbete påvisar en väldigt effektiv metod för komprimering av scengeometri. Resultaten av den presenterade algoritmen visar att möjligheten att uppnå väldigt låg bithastighet med jämförelsebara resultat med H.264-standarden.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Martinkauppi, B. (Birgitta). "Face colour under varying illumination - analysis and applications". Doctoral thesis, University of Oulu, 2002. http://urn.fi/urn:isbn:9514267885.

Texto completo da fonte

Resumo:

Abstract The colours of objects perceived by a colour camera are dependent on the illumination conditions. For example, when the prevailing illumination condition does not correspond to the one used in the white balancing of the camera, the object colours can change their appearance due to the lack of colour constancy capabilities. Many methods for colour constancy have been suggested but so far their performance has been inadequate. Faces are common and important objects encountered in many applications. Therefore, this thesis is dedicated to studying face colours and their robust use under real world illumination conditions. The main thesis statement is "knowledge about an object's colour, like skin colour changes under different illumination conditions, can be used to develop more robust techniques against illumination changes". Many face databases exist, and in some cases they contain colour images and even videos. However, from the point of view of this thesis these databases have several limitations: unavailability of spectral data related to image acquisition, undefined illumination conditions of the acquisition, and if illumination change is present it often means only change in illumination direction. To overcome these limitations, two databases, a Physics-Based Face Database and a Face Video Database were created. In addition to the images, the Physics-Based Face Database consists of spectral data part including skin reflectances, channel responsivities of the camera and spectral power distribution of the illumination. The images of faces are taken under four known light sources with different white balancing illumination conditions for over 100 persons. In addition to videos, the Face Video Database has spectral reflectances of skin for selected persons and images taken with the same measurement arrangement as in the Physics-Based Face Database. The images and videos are taken with several cameras. The databases were used to gather information about skin chromaticities and to provide test material. The skin RGB from images were converted to different colour spaces and the result showed that the normalized colour coordinate was among the most usable colour spaces for skin chromaticity modelling. None of the colour spaces could eliminate the colour shifts in chromaticity. The obtained chromaticity constraint can be implemented as an adaptive skin colour modelling part of face tracking algorithms, like histogram backprojection or mean shift. The performances of these adaptive algorithms were superior compared to those using a fixed skin colour model or model adaptation based on spatial pixel selection. Of course, there are cases when the colour cue is not enough alone and use of other cues like motion or edge data would improve the result. It was also demonstrated that the skin colour model can be used to segment faces and the segmentation results depend on the background due to the method used. Also an application for colour correction using principal component analysis and a simplified dichromatic reflection model was shown to improve colour quality of seriously clipped images. The results of tracking, segmentation and colour correction experiments using the collected data validate the thesis statement.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Bergman, Lars. "Using Multicoloured Halftone Screens for Offset Print Quality Monitoring". Licentiate thesis, Linköping : Univ, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5573.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Luwes, N. J. "A technique for tracking an indoor unmanned aerial or automated guided vehicle using a stationary camera and hue colour characteristics". Interim : Interdisciplinary Journal: Vol 9, Issue 2: Central University of Technology Free State Bloemfontein, 2010. http://hdl.handle.net/11462/355.

Texto completo da fonte

Resumo:

Published Article
Today's industries are based on an automated workplace. These automated workplaces are efficient, reconfigurable and intelligent automated environments. They are filled with technology, robotics, Automated Guided Vehicle (AGV) and, or Unmanned Aerial Vehicles (UAV) etc. For full automation will one need to effectively track an object, unmanned aerial vehicle (UAV) or automated guided vehicle (AGV). Effective tracking of vehicles can be used for control. This could result in less hardware on the craft that leads to a longer battery life, a bigger pay load or more processing power. This system track by using a stationary colour camera placed at an optimal placing in the automated workplace. The vehicle or objects are painted in two colours (colour A and colour B) that are not present in the automated workplace. The images from the camera are hue colour filtered to extract only the object or vehicle. The area, placement in frame and relationship between colour A and B are used for position and determine the orientation of AGV, UAV or object.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mohammed, Abdulmalik. "Obstacle detection and emergency exit sign recognition for autonomous navigation using camera phone". Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/obstacle-detection-and-emergency-exit-sign-recognition-for-autonomous-navigation-using-camera-phone(e0224d89-e743-47a4-8c68-52f718457098).html.

Texto completo da fonte

Resumo:

In this research work, we develop an obstacle detection and emergency exit sign recognition system on a mobile phone by extending the feature from accelerated segment test detector with Harris corner filter. The first step often required for many vision based applications is the detection of objects of interest in an image. Hence, in this research work, we introduce emergency exit sign detection method using colour histogram. The hue and saturation component of an HSV colour model are processed into features to build a 2D colour histogram. We backproject a 2D colour histogram to detect emergency exit sign from a captured image as the first task required before performing emergency exit sign recognition. The result of classification shows that the 2D histogram is fast and can discriminate between objects and background with accuracy. One of the challenges confronting object recognition methods is the type of image feature to compute. In this work therefore, we present two feature detectors and descriptor methods based on the feature from accelerated segment test detector with Harris corner filter. The first method is called Upright FAST-Harris and binary detector (U-FaHB), while the second method Scale Interpolated FAST-Harris and Binary (SIFaHB). In both methods, feature points are extracted using the accelerated segment test detectors and Harris filter to return the strongest corner points as features. However, in the case of SIFaHB, the extraction of feature points is done across the image plane and along the scale-space. The modular design of these detectors allows for the integration of descriptors of any kind. Therefore, we combine these detectors with binary test descriptor like BRIEF to compute feature regions. These detectors and the combined descriptor are evaluated using different images observed under various geometric and photometric transformations and the performance is compared with other detectors and descriptors. The results obtained show that our proposed feature detector and descriptor method is fast and performs better compared with other methods like SIFT, SURF, ORB, BRISK, CenSurE. Based on the potential of U-FaHB detector and descriptor, we extended it for use in optical flow computation, which we termed the Nearest-flow method. This method has the potential of computing flow vectors for use in obstacle detection. Just like any other new methods, we evaluated the Nearest flow method using real and synthetic image sequences. We compare the performance of the Nearest-flow with other methods like the Lucas and Kanade, Farneback and SIFT-flow. The results obtained show that our Nearest-flow method is faster to compute and performs better on real scene images compared with the other methods. In the final part of this research, we demonstrate the application potential of our proposed methods by developing an obstacle detection and exit sign recognition system on a camera phone and the result obtained shows that the methods have the potential to solve this vision based object detection and recognition problem.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Vlček, Pavel. "Analýza schopnosti jasového analyzátoru LDA - LumiDISP měřit náhradní teplotu chromatičnosti". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442553.

Texto completo da fonte

Resumo:

This master's thesis deals with the search of commercially available luminance analysers and cameras that use the measurement of correlated colour temperature. It also deals with calculations of correlated colour temperature according to various available methods. The luminance analyser LDA-LumiDISP is based on a DSLR camera. The principle of its operation and possible errors in capturing pictures are discussed here. The work deals with extensive testing of the LDA-LumiDISP luminance analyser, which is primarily intended for measuring luminance in the set scene, but can also be used to measure the correlated colour temperature. The device is being tested in terms of measuring the correlated colour temperature in laboratory and field conditions. The result of the master's thesis is the calculation of measurements uncertainty for certain light sources and the optimization of the measuring algorithm to reduce them.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mais fontes

Livros sobre o assunto "Colour camera"

Grundmann, Roy, Peter Schwartz e Gregory Williams, eds. Labour in a Single Shot. NL Amsterdam: Amsterdam University Press, 2021. http://dx.doi.org/10.5117/9789463722421.

Texto completo da fonte

Resumo:

This collection of essays offers a critical assessment of Labour in a Single Shot, a groundbreaking documentary video workshop. From 2011 to 2014, curator Antje Ehmann and film- and videomaker Harun Farocki produced an art project of truly global proportions. They travelled to fifteen cities around the world to conduct workshops inspired by cinema history’s first film, Workers Leaving the Lumière Factory, shot in 1895 by the Lumière brothers in France. While the workshop videos are in colour and the camera was not required to remain static, Ehmann and Farocki’s students were tasked with honouring the original Lumière film’s basic parameters of theme and style. The fascinating result is a collection of more than 550 short videos that have appeared in international exhibitions and on an open-access website, offering the widest possible audience the opportunity to ponder contemporary labour in multiple contexts around the world.

Estilos ABNT, Harvard, Vancouver, APA, etc.

Exposure. Lausanne, Switzerland: AVA Academia, 2009.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Pettem, Silvia. Boulder: A sense of time and place : selected daily camera history columns. Longmont, Colo: Book Lode, 2000.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Wernery, Ulrich. Color atlas of camelid hematology. Berlin: Blackwell Wissenschafts-Verlag, 1999.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Microstock photography: How to make money from your digital images. Amsterdam: Focal Press/Elsevier, 2008.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Freer, Douglas. Microstock Photography. San Diego: Elsevier Science, 2008.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Galer, Mark. Digital Photography in Available Light. San Diego: Elsevier Science, 2006.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Stoppees' Guide to Photography and Light. San Diego: Elsevier Science, 2008.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Janet, Stoppee, ed. Stoppees' guide to photography and light: What digital photographers, illustrators, and creative professionals must know. Amsterdam: Elsevier/Focal Press, 2009.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

The book of photography. London: DK Pub., 2005.

Encontre o texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Mais fontes

Capítulos de livros sobre o assunto "Colour camera"

Kloss, Guy K. "Camera Colour Fidelity through Adapting ICC Profiles". In Convergence and Hybrid Information Technology, 78–87. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24106-2_11.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Zeng, Chao, Wenjing Jia e Xiangjian He. "An Algorithm for Colour-Based Natural Scene Text Segmentation". In Camera-Based Document Analysis and Recognition, 58–68. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-29364-1_5.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Baltes, Jacky. "Practical Camera and Colour Calibration for Large Rooms". In RoboCup-99: Robot Soccer World Cup III, 148–61. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/3-540-45327-x_11.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Georghiou, Luke, J. Stanley Metcalfe, Michael Gibbons, Tim Ray e Janet Evans. "The Marconi Company: The Mark VII Colour Television Camera". In Post-Innovation Performance, 233–39. London: Palgrave Macmillan UK, 1986. http://dx.doi.org/10.1007/978-1-349-07455-6_27.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Pruska-Oldenhof, Izabella. "Loïe Fuller and the Poetics of Light, Colour, and Rhythm: Some Thoughts on the Making of fugitive l(i)ght". In Dance’s Duet with the Camera, 97–117. London: Palgrave Macmillan UK, 2016. http://dx.doi.org/10.1057/978-1-137-59610-9_5.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Reif, K., H. Poschmann, Bagschik, O. Cordes, D. Harbeck e P. Müller. "BUSCA: A simultaneous 4 colour camera with 4K×4K CCDs". In Optical Detectors For Astronomy II, 143–47. Dordrecht: Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4361-5_16.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Gilbert, Andrew, e Richard Bowden. "Tracking Objects Across Cameras by Incrementally Learning Inter-camera Colour Calibration and Patterns of Activity". In Computer Vision – ECCV 2006, 125–36. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/11744047_10.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Tan, Keng T., Siong Khai Ong e Douglas Chai. "Modelling of Camera Phone Capture Channel for JPEG Colour Barcode Images". In Communications in Computer and Information Science, 259–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-10546-3_31.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Finlayson, Graham D., e Yuteng Zhu. "Finding a Colour Filter to Make a Camera Colorimetric by Optimisation". In Lecture Notes in Computer Science, 53–62. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-13940-7_5.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Inoué, Shinya, e Kenneth R. Spring. "Color Video Signal and Color Cameras". In Video Microscopy, 367–82. Boston, MA: Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5859-0_9.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Trabalhos de conferências sobre o assunto "Colour camera"

Raja, Kiran B., R. Raghavendra, Faouzi Alaya Cheikh, Bian Yang e Christoph Busch. "Robust iris recognition using light-field camera". In 2013 Colour and Visual Computing Symposium (CVCS). IEEE, 2013. http://dx.doi.org/10.1109/cvcs.2013.6626284.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Bartczak, Piotr, Ana Gebejes, Pauli Falt, Jussi Parkkinen e Pertti Silfstein. "Led-based spectrally tunable light source for camera characterization". In 2015 Colour and Visual Computing Symposium (CVCS). IEEE, 2015. http://dx.doi.org/10.1109/cvcs.2015.7274893.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Connolly, C. "Industrial colour inspection by video camera". In Fifth International Conference on Image Processing and its Applications. IEE, 1995. http://dx.doi.org/10.1049/cp:19950744.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Saad, Michele A., Margaret H. Pinson, David G. Nicholas, Niels Van Kets, Glenn Van Wallendael, Ralston Da Silva, Ramesh V. Jaladi e Philip J. Corriveau. "Impact of camera pixel count and monitor resolution perceptual image quality". In 2015 Colour and Visual Computing Symposium (CVCS). IEEE, 2015. http://dx.doi.org/10.1109/cvcs.2015.7274887.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Gebejes, Ana, Miguel Angel Martinez Domingo, Ville Heikkinen e Ivana Tomic. "Reflectance recovery for coated printed color samples via multiangular RGB camera measurements". In 2013 Colour and Visual Computing Symposium (CVCS). IEEE, 2013. http://dx.doi.org/10.1109/cvcs.2013.6626287.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Slavuj, Radovan, e Phil Green. "To develop a method of estimating spectral reflectance from camera RGB values". In 2013 Colour and Visual Computing Symposium (CVCS). IEEE, 2013. http://dx.doi.org/10.1109/cvcs.2013.6626288.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Zhao, Ping, Yao Cheng e Marius Pedersen. "Objective assessment of perceived sharpness of projection displays with a calibrated camera". In 2015 Colour and Visual Computing Symposium (CVCS). IEEE, 2015. http://dx.doi.org/10.1109/cvcs.2015.7274892.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Luukanen, Arttu, Tero Kiuru, Mikko M. Leivo, Anssi Rautiainen e Jussi Varis. "Passive three-colour submillimetre-wave video camera". In SPIE Defense, Security, and Sensing, editado por David A. Wikner e Arttu R. Luukanen. SPIE, 2013. http://dx.doi.org/10.1117/12.2018038.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Ong, Siong Khai, Douglas Chai e Keng T. Tan. "Performance of mobile camera on colour 2D barcode". In 2009 International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS 2009). IEEE, 2009. http://dx.doi.org/10.1109/ispacs.2009.5383794.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Molada Tebar, Adolfo, José Luis Lerma e Ángel Marqués-Mateu. "SOFTWARE DEVELOPMENT FOR COLOURIMETRIC AND SPECTRAL DATA PROCESSING: PYCOLOURIMETRY". In 1st Congress in Geomatics Engineering. Valencia: Universitat Politècnica València, 2017. http://dx.doi.org/10.4995/cigeo2017.2017.6568.

Texto completo da fonte

Resumo:

Archaeological documentation is a complex process where the technical measurement and specification of colour is a key aspect. In the last years heritage documentation processes have largely benefited from the application of digital recording methods, imagery analysis software and technologies that offers great advantages over the traditional methods. The rigorous processing of colourimetric data requires software packages with specific colourimetric technical characteristics. In this paper we report on our in-house pyColourimetry software that was developed and tested taking into account the recommendations of the Commission Internationale de l'Éclairage (CIE). The objective is to apply a rigorous procedure for the characterisation of cameras based a priori on polynomial models. Most of the digital cameras capture colour information in the well-known RGB format, but the signals generated by the digital camera are device dependent. By means of the characterisation we establish the relationship between device dependent RGB values and the tristimulus coordinates defined by the CIE standard colourimetric observer. Once the camera is characterised, users have the potential to obtain output images in the sRGB space that is independent of the sensor of the camera. pyColourimetry software allows users to control the entire digital image processing and the colourimetric data workflow proposed. We applied the methodology on a set of pictures targeting Levantine rock art motifs in Cova dels Cavalls (Castellón, Spain) which is considered part of a UNESCO World Heritage Site. The outcomes obtained are satisfactory and very promising for proper colour documentation in cultural heritage estudies.http://dx.doi.org/10.4995/CIGeo2017.2017.6568

Estilos ABNT, Harvard, Vancouver, APA, etc.

Relatórios de organizações sobre o assunto "Colour camera"

Castleberry, J. L. Training plan for the mobile color camera system. Office of Scientific and Technical Information (OSTI), março de 1996. http://dx.doi.org/10.2172/483527.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Castleberry, J. L. ,. Fluor Daniel Hanford. Acceptance test report for the mobile color camera system. Office of Scientific and Technical Information (OSTI), fevereiro de 1997. http://dx.doi.org/10.2172/325877.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Kohlman, E. H., e D. B. Smet. System design description 241-SY-101 color video camera. Office of Scientific and Technical Information (OSTI), dezembro de 1994. http://dx.doi.org/10.2172/10119727.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Esvelt, C. A. Operability test report for the mobile color camera system (MCCS). Office of Scientific and Technical Information (OSTI), janeiro de 1997. http://dx.doi.org/10.2172/325421.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Werry, S. M. Acceptance/operational test procedure 101-SY tank camera purge system and in tank color camera video imaging system. Office of Scientific and Technical Information (OSTI), outubro de 1994. http://dx.doi.org/10.2172/10185741.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Terry, P. L. Initial laboratory evaluation of color video cameras: Phase 2. Office of Scientific and Technical Information (OSTI), julho de 1993. http://dx.doi.org/10.2172/10183514.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Robinson, R. S. Operational test procedure 241-AZ-101 waste tank color video camera system. Office of Scientific and Technical Information (OSTI), outubro de 1996. http://dx.doi.org/10.2172/331651.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Strehlow, J. P. Structural analysis of color video camera installation on tank 241AW101 (2 Volumes). Office of Scientific and Technical Information (OSTI), agosto de 1994. http://dx.doi.org/10.2172/10180912.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Bionta, R. M. Color gamma ray camera: Laboratory directed research & development (LDRD) FY 1995. Office of Scientific and Technical Information (OSTI), junho de 1996. http://dx.doi.org/10.2172/251602.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Kohlman, E. H. Engineering task plan for flammable gas atmosphere mobile color video camera systems. Office of Scientific and Technical Information (OSTI), janeiro de 1995. http://dx.doi.org/10.2172/10118713.

Texto completo da fonte

Estilos ABNT, Harvard, Vancouver, APA, etc.

Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!