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Journal articles on the topic 'Digital camera lens'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Burnett, Bryan, and Steven Blaauw. "Macro Imaging with Digital Cameras." Microscopy Today 11, no. 4 (2003): 32–35. http://dx.doi.org/10.1017/s1551929500053050.

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Advances in charged couple device (CCD) design, low cast processor power, cheap memory and dropping prices of digital cameras over the last few years have made the CCD digital camera art attractive alternative to the film camera for many imaging applications. This is especially true in macro imaging where it appears likely that digital cameras will replace film cameras (curiously, Long (2001), says otherwise). As will be described here, a digital camera equipped with a quality macro-zoom lens, generates images with a depth of field (e.g., Fig. 1) that greatly surpass images produced by a film

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Haider, Y. Hammod*1 Saaid F. Hassan2 Intisar A. Naseef3. "DESIGN AND ANALYSIS DIGITAL CAMERA LENS USING ZEMAX PROGRAM." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 8 (2017): 186–91. https://doi.org/10.5281/zenodo.839163.

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The objective of this study is to design and analysis of Digital camera Multiple Lens Reflex (DMLR) cameras design and analysis using the Zemax software.A wide range of wave length extends from (0.486- 0.656) µm and diffraction limited over a large field of angles with F/#2.9 also studied. We found these the performance is very close to the predicted values of aberrations. which selected with limited magnification that may be used for photography.

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Wulandari, Ria, Dendy Jonas, and Naufal Fadhil Alwarits. "Design of Expert System Application for Android-Based DSLR Camera Damage Diagnosis." IAIC Transactions on Sustainable Digital Innovation (ITSDI) 1, no. 2 (2019): 99–107. http://dx.doi.org/10.34306/itsdi.v1i2.19.

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In the digital age it is possible for everyone to do anything including documenting moments. One of them is digital camera based on Digital Single Lens Reflex or DSLR. But sometimes the use that is not according to the procedure can cause damage to the camera. As a layman, of course, will be confused with the problems that arise when there is damage and will be more decided to buy a new one or sell it, even though the damaged camera can still be repaired alone or by expert technicians. To solve the problem, an Expert System was created to diagnose damage to the Digital Single Lens Reflex camer

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Chen, Kuen Suan, Ching Hsin Wang, and Yu Yi Wang. "Applying a Six Sigma MAIC Process to Improve the Quality of Lens Camera Production." Key Engineering Materials 500 (January 2012): 301–10. http://dx.doi.org/10.4028/www.scientific.net/kem.500.301.

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The rapid development of technology has led to the increased embracing of portable consumer electronics, such as mobile phones, digital cameras, and notebook computers. The lens cameras installed in these electronics are indispensable, and the function and quality of lens cameras have gained increasing attention. This study examines the production processes of lens camera products, utilizing the production capacity indicatorCpmto develop an evaluation model. This approach seeks to determine the important product quality characteristic production processes that have a detrimental impact on lens

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CALDWELL, J. BRIAN. "Zoom Lens for a Digital Camera." Optics and Photonics News 11, no. 4 (2000): 56. http://dx.doi.org/10.1364/opn.11.4.000056.

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Shahrul, Al Imran. "Mirrorless cameras in orthodontic practice." Journal of Orthodontics 48, no. 3 (2021): 295–99. http://dx.doi.org/10.1177/14653125211000055.

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Mirrorless cameras have seen rapid advancements in recent years. Orthodontists may benefit from these technological advancements in their daily orthodontic practice. This article will explore the advantages and disadvantages of mirrorless cameras, and assess how these camera compare to the tried-and-tested digital single-lens reflex (DSLR) camera.

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Bernacki, Jaroslaw. "Digital camera identification based on analysis of optical defects." Multimedia Tools and Applications 79, no. 3-4 (2019): 2945–63. http://dx.doi.org/10.1007/s11042-019-08182-z.

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AbstractIn this paper we deal with the problem of digital camera identification by photographs. Identifying camera is possible by analyzing camera’s sensor artifacts that occur during the process of photo processing. The problem of digital camera identification has been popular for a long time. Recently many effective and robust algorithms for solving this problem have been proposed. However, almost all solutions are based on state-of-the-art algorithm, proposed by Lukás et al. in 2006. Core of this algorithm is to calculate the so-called sensor pattern noise based on denoising images with wav

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Chibunichev, A. G., A. V. Govorov, and V. E. Chernyshev. "RESEARCH OF THE CAMERA CALIBRATION USING SERIES OF IMAGES WITH COMMON CENTER OF PROJECTION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W18 (November 29, 2019): 19–22. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w18-19-2019.

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Abstract. The method for calibration of cameras equipped with long focal distance lens is researched in the present work. The basic idea is as follows. The camera to be calibrated is placed on the tripod with panoramic head. The main condition of panorama shooting is that the rotation center of the camera and the front nodal point of the lens should be the same. The camera is calibrated based on a series of images of a test object with a common center of projection. Special software has been created for this purpose. The results of experimental studies on digital simulated data and for a real

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Aminova, E., I. Trapeznikov, and A. Priorov. "OVERVIEW OF DIGITAL FORENSICS ALGORITHMS IN DSLR CAMERAS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W4 (May 10, 2017): 199–205. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w4-199-2017.

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The widespread usage of the mobile technologies and the improvement of the digital photo devices getting has led to more frequent cases of falsification of images including in the judicial practice. Consequently, the actual task for up-to-date digital image processing tools is the development of algorithms for determining the source and model of the DSLR (Digital Single Lens Reflex) camera and improve image formation algorithms. Most research in this area based on the mention that the extraction of unique sensor trace of DSLR camera could be possible on the certain stage of the imaging process

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Putri, Tri Pina, and Paulina H. Prima Rosa. "Decision Support System to Choose Digital Single Lens Camera with Simple Additive Weighting Method." Scientific Journal of Informatics 3, no. 2 (2016): 167–76. http://dx.doi.org/10.15294/sji.v3i2.7913.

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One of the technologies that evolve today is Digital Single Lens Reflex (DSLR) camera. The number of products makes users have difficulties to choose the appropriate camera based on their criteria. Users may utilize several ways to help them choosing the intended camera such as using magazine, internet, and other media. This paper discusses about a web based decision support system to choose cameras by using SAW (Simple Additive Weighting) method in order to make the decision process more effective and efficient. This system is expected to give recommendations about the camera which is appropr

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Yanagi, H., and H. Chikatsu. "CAMERA CALIBRATION IN 3D MODELLING FOR UAV APPLICATION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-4/W5 (May 13, 2015): 223–26. http://dx.doi.org/10.5194/isprsarchives-xl-4-w5-223-2015.

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In recent times, small types of Unmanned Aerial Vehicles (UAVs) have been receiving attention in areas such as 3D modelling, maintenance engineering, and personal interest (hobby) usage. However, the payload a small type of UAV is able to carry is limited. Given these circumstances, small consumer grade digital cameras are often used for UAV photogrammetry with small types of UAV. Though, digital photogrammetry using the consumer grade cameras is enormously expected in various application fields such as UAV photogrammetry. <br><br> There is a large body of literature on camera cali

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Sužiedelytė-Visockienė, Jūratė. "PHOTOGRAMMETRY REQUIREMENTS FOR DIGITAL CAMERA CALIBRATION APPLYING TCC AND MATLAB SOFTWARE." Geodesy and Cartography 38, no. 3 (2012): 106–10. http://dx.doi.org/10.3846/20296991.2012.728895.

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The result of photogrammetry is a digital object or terrain images on the plane or in three-dimensional space. Precise data on the object is photocopied by a professional digital camera equipped with the calibrated system of optical lens (evaluation of distortion parameters for optical lens). Camera calibration is performed in a laboratory or employing special calibration software and using special field testing. However, Lithuania doesn't own similar laboratories. Therefore, an important point is obtaining proper software for the verification of these works. European countries have been using

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Overney, Gregor. "Using a Sony Cyber-Shot Digital Camera for Photomicrography." Microscopy Today 10, no. 6 (2002): 10–15. http://dx.doi.org/10.1017/s1551929500058442.

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Photomicrography is the combination of photography and compound microscopy. Photographers working with compound microscopes are facing many challenges (for an introduction see [1] and [2]). Digital photography offers great advantages, but also adds additional difficulties. Digital cameras have been used in photomicrography for over a decade now. Today, we have access to many excellent consumer-grade digital cameras that are most suitable for low-cost imaging systems for light microscopy. In this short paper, I summarize my experience with the Sony DSC-S70 digital camera, which comes with a nic

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Qi, Jiankang, Mengqiao Xu, Weiling Zhang, Yubo Liu, and Xiangjun Dai. "Defect Detection of Pipeline Inner Surface Based on Coaxial Digital Image Correlation with Hypercentric Lens." Materials 15, no. 21 (2022): 7543. http://dx.doi.org/10.3390/ma15217543.

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A coaxial dual-camera digital image correlation system using a hypercentric lens was proposed to determine the defect position in the inner wall of a pipeline under loads. Compared with the traditional dual-camera system, this system ensures that both cameras can capture a 360-degree panoramic image in the same position. Herein, the imaging principle of the system was introduced in detail. In addition, the effectiveness and accuracy of the proposed method were verified through verification and application experiments.

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Mostafa, M. M. R., J. Hutton, S. Sobol, L. Viveros, S. Cooper, and Y. Raizman. "HIGH PRECISION FULLY INTEGRATED AIRBORNE DIGITAL MAPPING SYSTEMS – STATE OF THE ART AND PERFORMANCE ANALYSIS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLIII-B1-2020 (August 6, 2020): 337–42. http://dx.doi.org/10.5194/isprs-archives-xliii-b1-2020-337-2020.

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Abstract. This paper introduces the Phase One Aerial System 150, a next generation fully integrated fully digital aerial camera system with one single digital camera head and lens which almost matches the perfect geometry of a film camera for all airborne mapping applications. It is the first true replacement for the simplicity, geometry and efficiency established by film cameras for traditional airborne mapping. Several test flights were planned to be flown with the Phase One Aerial System 150 over the Greater Denver Area, Colorado, U.S.A. during the Winter of 2020. Two lenses are planned to

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Incekara, A. H., D. Z. Seker, A. Delen, and A. Acar. "INVESTIGATING THE SUITABILITY OF MIRRORLESS CAMERAS IN TERRESTRIAL PHOTOGRAMMETRIC APPLICATIONS." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-4/W4 (November 13, 2017): 259–62. http://dx.doi.org/10.5194/isprs-annals-iv-4-w4-259-2017.

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Digital single-lens reflex cameras (DSLR) which are commonly referred as mirrored cameras are preferred for terrestrial photogrammetric applications such as documentation of cultural heritage, archaeological excavations and industrial measurements. Recently, digital cameras which are called as mirrorless systems that can be used with different lens combinations have become available for using similar applications. The main difference between these two camera types is the presence of the mirror mechanism which means that the incoming beam towards the lens is different in the way it reaches the

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Kwan, Elliott, and Hong Hua. "Calibration of transverse ray and pupil aberrations for light field cameras." Applied Optics 61, no. 24 (2022): 6974. http://dx.doi.org/10.1364/ao.465129.

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The accuracy of reconstructing depth maps or performing digital refocusing in light field cameras depends largely on how well the spatial and angular samples of light rays can be obtained. Ray sample errors induced by optical aberrations in a light field camera may be digitally corrected using the ray tracing data when its nominal lens design is available. However, the most commonly nominal lens prescription is not accessible to end users. Additionally, even if available, due to tolerances in optomechanical design, the ray tracing data can be inaccurate. We propose a calibration method based o

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Lazaroff, Norman. "An Affordable Digital Micrography to Interest Children (Of all Ages) in Science." Microscopy Today 8, no. 1 (2000): 26–27. http://dx.doi.org/10.1017/s1551929500057138.

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Inexpensive fixed-focus digital cameras can be used with homemade lens attachments to obtain good quality close-up images and photomicrographs. The current availability of inexpensive digital cameras with resolutions of 1024 x 768 pixels or better is brought about by technical advance and the continual introduction of competing new models and accessories. The digital camera which I use costs less than $150 nowat a liquidation sale or internet auction, and the price continues to decrease. Although more expensive digital cameras are great to have, their advanced features are not necessary for in

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Kolláth, Zoltán, and Anita Dömény. "Night sky quality monitoring in existing and planned dark sky parks by digital cameras." International Journal of Sustainable Lighting 19, no. 1 (2017): 61–68. http://dx.doi.org/10.26607/ijsl.v19i1.70.

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A crucial part of the qualification of international dark sky places (IDSPs) is the objective measurement of night time sky luminance or radiance. Modern digital cameras provide an alternative way to perform all sky imaging either by a fisheye lens or by a mosaic image taken by a wide angle lens. Here we present a method for processing raw camera images to obtain calibrated measurements of sky quality. The comparison of the night sky quality of different European locations is also presented to demonstrate the use of our technique.

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Wang, Zunyao. "Irradiance Recovery and HDR Images Reconstruction from the Measurement of Nonlinear Response Curves of DSLR Cameras." Theoretical and Natural Science 83, no. 1 (2025): 125–40. https://doi.org/10.54254/2753-8818/2025.19944.

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The non-linear response behavior of digital single-lens reflex cameras limits their application in scientific measurements where accurate light intensity is crucial, as pixel values in camera images do not correspond linearly to incident irradiances. This essay proposes a method for measuring the non-linear response curves of digital single-lens reflex cameras, enabling accurate recovery of incident intensities despite the inherent non-linearity of these cameras. Optimized from an existing algorithm, this technique achieves higher-quality results and faster programming times. The effectiveness

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Luan, LiKang, and Liam Crosbie. "A Three-Camera Digital Image Correlation System For Full-Field 3D Shape and Motion Measurement." Materials Evaluation 80, no. 11 (2022): 34–41. http://dx.doi.org/10.32548/2022.me-04293.

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A cluster-approach-based three-camera digital image correlation (DIC) system is introduced for full-field 3D shape and motion measurement. In this system, three cameras are employed to measure the same specimen area at different viewing angles. Data points within the region of interest can be evaluated by arbitrary camera pairs as a stereo DIC system so that data points with the smallest 3D residuum are selected and mapped into one common coordinate system. Two stationary shape measurements and one out-of-plane motion measurement were carried out with the three-camera DIC system. Test results

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Ataiwe, Tariq N., Israa Hatem, and Hisham M. J. Al Sharaa. "Digital Model in Close-Range Photogrammetry Using a Smartphone Camera." E3S Web of Conferences 318 (2021): 04005. http://dx.doi.org/10.1051/e3sconf/202131804005.

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Smartphones recently expanded the potential for low-cost close-range photogrammetry for 3D modeling. They enable the simultaneous collection of large amounts of data for a variety of requirements. It is possible to calculate image orientation elements and triangular coordinates in phases as in Relative and Absolute image orientation. This study demonstrates the photogrammetric 3D reconstruction approach that performs on tablets and smartphones as well. Images are taken with smartphone cameras of iPhone 6 and then calibrated automatically using normal calibration model for photogrammetry and co

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Yi, Xue Feng, and Si Chun Long. "Precision Displacement Measurement of Single Lens Reflex Digital Camera." Applied Mechanics and Materials 103 (September 2011): 82–86. http://dx.doi.org/10.4028/www.scientific.net/amm.103.82.

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When the stripes are photographed by digital cameras,Moiré fringes will be in the photograph. With the displacement amplification of Moiré fringes, tiny movement of stripes can be calculated precisely. We expounded its calculating methods in this paper. Experimental data show that high precision can be guaranteed.It is well known that the high rate zoom characteristic of moire fringe technique can be well used in precise measurement of digital Camera’s displacement, and besides, widely used in machining, laboratory and photo-electricity equipment. With the development and popularization of dig

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Kvitovskiy, Oleg A., and Dmitry M. Nikulin. "AUTOMATION OF CONTROL OF OPTICAL PARAMETERS OF IMAGE CONVERTER TUBES." Interexpo GEO-Siberia 6 (May 21, 2021): 125–30. http://dx.doi.org/10.33764/2618-981x-2021-6-125-130.

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The article proposes a scheme of an installation with a digital camera for automating the measurement viewing area picture quality and the output brightness non-uniformity ratio of an image converter tubes. The requirements for the CMOS-matrix and the lens for the digital camera used are formulated.

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Sheng, Ding Yi, Shen Peng Li, Zai Yuan Wang, and Jing Zhang. "Distortion Calibration for Camera Lens Based on Digital Image Processing." Advanced Materials Research 926-930 (May 2014): 1530–33. http://dx.doi.org/10.4028/www.scientific.net/amr.926-930.1530.

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Distortion produced by optical system makes the image of object in linear CCD deviate from the theoretical point and lead to the system measuring error. According to the digital image processing, a high-precision calibration method is proposed. The imaging measurement system is calibrated through two steps: firstly, use laser collimation to detect the principal point for a large visal field camera lens with short focal distance. Secondly, use a rectangular gidding target to get lens distortion coefficient.

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Bhat, Vidya S., SanathKumar Shetty, Khizer Ishaquddin Syed, and 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, no. 32 (2021): 2577–81. http://dx.doi.org/10.14260/jemds/2021/528.

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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

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Sutriyono, Sutriyono. "Optimization of Binocular Microscope with Micro Digital Camera for Measuring Seminiferous Tubules Epithelium Height." Biology, Medicine, & Natural Product Chemistry 5, no. 2 (2016): 41. http://dx.doi.org/10.14421/biomedich.2016.52.41-47.

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Binocular microscope optimization using micro digital camera to measure seminiferous tubules epithelium of mouse testis (<em>Mus muculus</em>) was completed. This research was conducted at Biology Laboratory of Faculty of Science and Technology UIN Sunan Kalijaga. The purpose of this study was to determine the height of the seminiferous tubules epithelium of mouse testis using micro digital camera. A computer was connected with binocular microscope and optilab advance, then calibration of optilab advance were done on objective lens magnification at 4x, 10x and 40x with 10x ocular l

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Fryskowska, A., M. Kedzierski, A. Grochala, and A. Braula. "CALIBRATION OF LOW COST RGB AND NIR UAV CAMERAS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 6, 2016): 817–21. http://dx.doi.org/10.5194/isprs-archives-xli-b1-817-2016.

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Non-metric digital cameras are being widely used for photogrammetric studies. The increase in resolution and quality of images obtained by non-metric cameras, allows to use it in low-cost UAV and terrestrial photogrammetry. Imagery acquired with non-metric cameras can be used in 3D modeling of objects or landscapes, reconstructing of historical sites, generating digital elevation models (DTM), orthophotos, or in the assessment of accidents. <br><br> Non-metric digital camcorders are characterized by instability and ignorance of the interior orientation parameters. Therefore, the us

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Maki-Yonekura, Saori, and Koji Yonekura. "Electron Digital Imaging toward High-Resolution Structure Analysis of Biological Macromolecules." Microscopy and Microanalysis 14, no. 4 (2008): 362–69. http://dx.doi.org/10.1017/s1431927608080665.

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Digital imaging has been applied to structure analysis of biological macromolecules in combination with electron energy filtering. Energy filtering can improve the image contrast of frozen-hydrated specimens, but needs a high-sensitivity imaging device instead of photographic film, because of a decrease in electrons after filtration. Here, a lens-coupled slow-scan charge-coupled device (SSCCD) camera with a post-column-type energy filter were examined to image bacterial flagellar filaments embedded in ice. We first measured the modulation transfer function of this camera and showed the remarka

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Benjamin, Bruce. "Digital Photography of the Larynx." Annals of Otology, Rhinology & Laryngology 111, no. 7 (2002): 603–8. http://dx.doi.org/10.1177/000348940211100707.

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Digital photographic technology has ushered in a new era in medical documentation. The author's method of still digital photography for direct and indirect laryngeal photodocumentation using a single-lens-reflex camera and rigid rod-lens telescopes is described, and the results are presented. The advantages and disadvantages of different systems using still or video photography are discussed, and the importance of storing the archival image securely is emphasized. It is concluded that digital photography is convenient and versatile and gives good-quality images. It is the way of the future.

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Clarke, Theodore M. "Heavy Duty Camera Bellows for Digital Imaging." Microscopy Today 6, no. 3 (1998): 12–13. http://dx.doi.org/10.1017/s1551929500066761.

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My previous article on digital imaging in the April 1997 issue of Microscopy Today noted the use of an Olympus Auto Bellows with a Kodak MegaPlus 1.6i/AB CCD camera for digital photomacrographs equivalent to 4 x 5 Polaroid prints with magnifications between 10X and 50X, The purpose of this article is to document the high resolution obtainable with the bellows system and the design modifications needed to eliminate the plastic dovetail inserts of the Olympus Auto Bellows, which are susceptible to delayed stress cracking when used with a heavier camera like the MegaPlus, Total failure of the dov

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Moussa, Carol, Louis Hardan, Cynthia Kassis, et al. "Accuracy of Dental Photography: Professional vs. Smartphone’s Camera." BioMed Research International 2021 (December 15, 2021): 1–7. http://dx.doi.org/10.1155/2021/3910291.

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There is a scant literature on the accuracy of dental photographs captured by Digital Single-Lens Reflex (DSLR) and smartphone cameras. The aim was to compare linear measurements of plaster models photographed with DSLR and smartphone’s camera with digital models. Thirty maxillary casts were prepared. Vertical and horizontal reference lines were marked on each tooth, with exception to molars. Then, models were scanned with the TRIOS 3 Basic intraoral dental scanner (control). Six photographs were captured for each model: one using DSLR camera (Canon EOS 700D) and five with smartphone (iPhone X

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Dietz, Henry. "Camera support for use of unchipped manual lenses." Electronic Imaging 2020, no. 7 (2020): 327–1. http://dx.doi.org/10.2352/issn.2470-1173.2020.7.iss-327.

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As interchangeable-lens cameras evolve into tightly integrated electromechanical systems, it is becoming increasingly awkward to use optics that cannot electronically communicate with the camera body. Such lenses are commonly referred to as “unchipped” because they lack integrated circuitry (aka, chips) that could interface with the camera body. Despite the awkwardness, there is a large community of photographers who prefer to use manual lenses. Not only is there an increased demand for vintage lenses, but the variety of newly-manufactured fully-manual lenses has been growing dramatically in r

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Wang, Wen Fa. "The Study and Implementation of Digital Camera Positioning Based on Pinhole Model." Applied Mechanics and Materials 411-414 (September 2013): 1213–17. http://dx.doi.org/10.4028/www.scientific.net/amm.411-414.1213.

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The pinhole model of camera imaging is established based on the analysis of the geometrical model of camera imaging and the mapping relationship and calculation formula between target and image are deduced in ideal status. Then the model is improved to make the model more practical, and a lens first-order radial distortion of the pinhole camera model is established. Final, the stability of the model is effectively analyzed.

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Chen, Mingce, Wenda He, Dong Wei, et al. "Depth-of-Field-Extended Plenoptic Camera Based on Tunable Multi-Focus Liquid-Crystal Microlens Array." Sensors 20, no. 15 (2020): 4142. http://dx.doi.org/10.3390/s20154142.

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Plenoptic cameras have received a wide range of research interest because it can record the 4D plenoptic function or radiance including the radiation power and ray direction. One of its important applications is digital refocusing, which can obtain 2D images focused at different depths. To achieve digital refocusing in a wide range, a large depth of field (DOF) is needed, but there are fundamental optical limitations to this. In this paper, we proposed a plenoptic camera with an extended DOF by integrating a main lens, a tunable multi-focus liquid-crystal microlens array (TMF-LCMLA), and a com

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Agarwal, Anupam, Shalu Mahajan, and Santosh Verma. "Digital Single Lens Reflex Photography in Clinical Orthodontics: Revolution or Evolution." World Journal of Dentistry 5, no. 2 (2014): 118–23. http://dx.doi.org/10.5005/jp-journals-10015-1271.

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ABSTRACT The field of dentistry has witnessed a ‘Digital Revolution’ in the recent past which has made the maintenance of patient's pretreatment and post-treatment records a necessary protocol. The speciality of orthodontics depends heavily on patient's records for various purposes including diagnosis and treatment planning and patient motivation. The recent upsurge in digital technology has been both inviting and confusing as an orthodontist finds himself in a dilemma regarding which camera to choose for orthodontic photography. This research article tries to develop an understanding about th

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Monkman, Graham G., Kieran Hyder, Michel J. Kaiser, and Franck P. Vidal. "Accurate estimation of fish length in single camera photogrammetry with a fiducial marker." ICES Journal of Marine Science 77, no. 6 (2019): 2245–54. http://dx.doi.org/10.1093/icesjms/fsz030.

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Abstract Videogrammetry and photogrammetry are increasingly being used in marine science for unsupervised data collection. The camera systems employed are complex, in contrast to “consumer” digital cameras and smartphones carried by potential citizen scientists. However, using consumer cameras in photogrammetry will introduce unknown length estimation errors through both the image acquisition process and lens distortion. This study presents a methodology to achieve accurate 2-dimensional (2-D) total length (TL) estimates of fish without specialist equipment or proprietary software. Photographs

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Tjahjadi, M. E., L. A. Parsamardhani, and K. T. Suhari. "Bridge Structural Deformation Monitoring Using Digital Camera." IOP Conference Series: Earth and Environmental Science 1051, no. 1 (2022): 012009. http://dx.doi.org/10.1088/1755-1315/1051/1/012009.

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Abstract Burgeoning off-the-selves Digital Single Lens Reflector (DSLR) cameras have been gaining attentions as a fast and affordable tool for conducting deformation monitoring of man-made engineering structures. When a sub millimetre of accuracy is sought, deliberate concerns of their usage must be considered since lingering systematic errors in the imaging process plaque such non metric cameras. This paper discusses a close range photogrammetric method to conduct structure deformation monitoring of the bridge using the digital DSLR camera. The bridge is located in Malang Municipality, East J

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Fryskowska, A., M. Kedzierski, A. Grochala, and A. Braula. "CALIBRATION OF LOW COST RGB AND NIR UAV CAMERAS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 6, 2016): 817–21. http://dx.doi.org/10.5194/isprsarchives-xli-b1-817-2016.

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Non-metric digital cameras are being widely used for photogrammetric studies. The increase in resolution and quality of images obtained by non-metric cameras, allows to use it in low-cost UAV and terrestrial photogrammetry. Imagery acquired with non-metric cameras can be used in 3D modeling of objects or landscapes, reconstructing of historical sites, generating digital elevation models (DTM), orthophotos, or in the assessment of accidents. &lt;br&gt;&lt;br&gt; Non-metric digital camcorders are characterized by instability and ignorance of the interior orientation parameters. T

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Qiang, Zhang, Shen Jian-jing, and Sun Meng-qing. "THE OUTDOOR RAPID CALIBRATION TECHNIQUE AND REALIZATION OF NONMETRIC DIGITAL CAMERA BASED ON THE METHOD OF MULTI-IMAGE DLT AND RESECTION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 3, 2016): 265–69. http://dx.doi.org/10.5194/isprsarchives-xli-b1-265-2016.

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For non-metric CCD digital camera features and the needs of Rapid field non-metric cameras calibration, the error sources was detailed analyzed and a mathematical calibration model has been founded. Both detailed multi-image group iterative method for solving DLT coefficient, the elements of interior orientation and distortion parameters of lens and the multi-image resection method for solving the elements of interior orientation, elements of exterior orientation and distortion parameters of lens have been discussed. A standard steel cage (e.g. Figure 1) has been made for real calibrating non-

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Qiang, Zhang, Shen Jian-jing, and Sun Meng-qing. "THE OUTDOOR RAPID CALIBRATION TECHNIQUE AND REALIZATION OF NONMETRIC DIGITAL CAMERA BASED ON THE METHOD OF MULTI-IMAGE DLT AND RESECTION." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B1 (June 3, 2016): 265–69. http://dx.doi.org/10.5194/isprs-archives-xli-b1-265-2016.

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For non-metric CCD digital camera features and the needs of Rapid field non-metric cameras calibration, the error sources was detailed analyzed and a mathematical calibration model has been founded. Both detailed multi-image group iterative method for solving DLT coefficient, the elements of interior orientation and distortion parameters of lens and the multi-image resection method for solving the elements of interior orientation, elements of exterior orientation and distortion parameters of lens have been discussed. A standard steel cage (e.g. Figure 1) has been made for real calibrating non-

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Won, Jae-Ho, Jae-Kyeong So, and Hee-Cheon Yun. "Non-Metric Digital Camera Lens Calibration Using Ground Control Points." Korean Journal of Geomatics 30, no. 2 (2012): 173–80. http://dx.doi.org/10.7848/ksgpc.2012.30.2.173.

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Sukor, Syafiq, and Anuar Ahmad. "Evaluation of Low Cost Digital Cameras for Producing Photogrammetric Output from UAV." International Journal of Engineering & Technology 7, no. 2.29 (2018): 792. http://dx.doi.org/10.14419/ijet.v7i2.29.14258.

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Recently there a lot of improvement in digital photogrammetry and this allow photogrammetry to become faster and cheaper . This study discuss about two type of low cost camera which is the compact camera (Canon Power Shot SX230 ) and action camera (Xiaomi yi) where both of them have different lens distortion. This study is conducted within UTM (Universiti Teknologi Malaysia) Skudai campus at Kolej Tun Razak. Both of the Canon Power Shot SX230 and Xiaomi yi camera would be attach to the UAV to take aerial photo with three different altitude which is 60 meter, 80 meter and 100 meter with a simil

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Kadnichanskiy, S. A., S. S. Nekhin, and A. I. Spiridonov. "Digital mapping aerial camera – a measuring instrument." Geodesy and Cartography 934, no. 4 (2018): 40–45. http://dx.doi.org/10.22389/0016-7126-2018-934-4-40-45.

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The difference between the topographic digital aerial cameras and the analogue ones are analyzed. The first one allows considering a digital aerial camera as a means of measurement. A regular rectangular grid of pixels of digital aerial cameras image sensor is a two-dimensional scale with divisions equal to the physical size of the pixel. It allows determining the position of interest points of the image in the coordinate system of a matrix of pixels, the axis of which is directed along rows and columns of the matrix. Wherein the measured value for aerial cameras, should be considered as the c

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YANAGI, Hideharu, and Hirofumi CHIKATSU. "Zoom Lens Calibration for Consumer Grade Digital Camera in Digital Close-Range Photogrammetry." Journal of the Japan society of photogrammetry and remote sensing 49, no. 6 (2010): 400–408. http://dx.doi.org/10.4287/jsprs.49.400.

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Zhou, Yongli. "Fulfill Your Digital Preservation Goals with a Budget Studio." Information Technology and Libraries 35, no. 1 (2016): 26. http://dx.doi.org/10.6017/ital.v35i1.5704.

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<p>In order to fulfill digital preservation goals, many institutions use high-end scanners for in-house scanning of historical print and oversize materials. However, high-end scanners’ prices do not fit in many small institutions’ budget. As digital single-lens reflex (DSLR) camera technologies advance and camera prices drop quickly, a budget photography studio can help to achieve institutions’ preservation goals. This paper compares images delivered by a high-end overhead scanner and a consumer level DSLR camera, discusses pros and cons of using each method, demonstrates how to set up a

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Choi, Hojong, and Jaemyung Ryu. "Design of Wide Angle and Large Aperture Optical System with Inner Focus for Compact System Camera Applications." Applied Sciences 10, no. 1 (2019): 179. http://dx.doi.org/10.3390/app10010179.

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Conventionally, a bright, very wide-angle optical system is designed as a floating type optical system that moves two or more lens groups composed of multiple lens in order to focus accurately. These have been widely used as phase detection auto focus (AF) methods within conventional digital single-lens reflex (DSLR) cameras. However, a phase detection AF optical system cannot be used when recording motion pictures. In contrast, a compact system camera (CSC) performs AF by the contrast method, where a stepper motor is used as the driving source for moving the optical lens. Nonetheless, to ensu

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Alaruri, Sami D. "Practical Methods for Characterizing the Optical Performance of Digital Camera-Based Imaging Systems." International Journal of Electronics, Communications, and Measurement Engineering 9, no. 1 (2020): 31–45. http://dx.doi.org/10.4018/ijecme.2020010103.

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In this paper, practical and simple methods for characterizing the optical performance of a digital CCD camera equipped with a zoom lens using test targets projected by a Newtonian collimator coupled to an integrating sphere and a halogen light source are presented. The presented methods include the evaluation of the CCD camera system modulation transfer function (MTF), uniformity, dynamic range, linearity, and signal-to-noise ratio (S/N) properties in the visible region of the spectrum. Through out this work image processing for the recorded target images is performed using ImageJ. In additio

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Pepe, M., S. Ackermann, L. Fregonese, F. Fassi, and A. Adami. "APPLICATIONS OF ACTION CAM SENSORS IN THE ARCHAEOLOGICAL YARD." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2 (May 30, 2018): 861–67. http://dx.doi.org/10.5194/isprs-archives-xlii-2-861-2018.

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In recent years, special digital cameras called “<i>action camera</i>” or “<i>action cam</i>”, have become popular due to their low price, smallness, lightness, strength and capacity to make videos and photos even in extreme environment surrounding condition. Indeed, these particular cameras have been designed mainly to capture sport actions and work even in case of dirt, bumps, or underwater and at different external temperatures. High resolution of Digital single-lens reflex (DSLR) cameras are usually preferred to be employed in photogrammetric field. Indeed, beyond t

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Fathoni, Ahmad Faisal Choiril Anam, and Dermawan Syamsuddin. "Perbandingan Metode Depth of Field pada Lensa Kamera Fotografi dengan Efek Lensa pada Software Animasi." Humaniora 4, no. 1 (2013): 177. http://dx.doi.org/10.21512/humaniora.v4i1.3427.

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The knowledge of photography becomes fundamental importance in the understanding of digital cinematography. The work of a good photography is a blend of knowledge and photographic ability (skill) correctly. By learning photography properly, it allows an animator or digital art workers to apply some standard cinematography as well. By knowing the comparison between photography with "photographic" in 3D animation, animators will be easier to create a digital aesthetic standard with the help of the software. This paper discusses the comparison of the use of photographic camera lenses and camera p

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