Log in

Relevant bibliographies by topics / Image-invariant / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Image-invariant.

Dissertations / Theses on the topic 'Image-invariant'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Image-invariant.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Zheng, Dong. "RST invariant digital image watermarking." Thesis, University of Ottawa (Canada), 2003. http://hdl.handle.net/10393/26554.

Full text

Abstract:

Digital image watermarking has been proposed as a method to ensure the copyright protection and credibility of images by means of embedding a known piece of digital data into host images. To be useful, a good watermarking scheme should be robust against all known attacks to a certain degree based on requirements. In this thesis, we propose a novel digital image watermarking scheme that is invariant to rotation, scaling, and translation (RST). We embed watermark in the log-polar mapping (LPM) of the Fourier magnitude spectrum of original image, and use the phase correlation between the LPM of t

APA, Harvard, Vancouver, ISO, and other styles

2

Shao, Ling. "Invariant salient regions based image retrieval." Thesis, University of Oxford, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.497094.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Reiss, T. H. "Recognizing objects using invariant image features." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.260553.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Fedorov, Vadim. "Affine invariant image comparison and its applications." Doctoral thesis, Universitat Pompeu Fabra, 2016. http://hdl.handle.net/10803/398002.

Full text

Abstract:

La comparación de imágenes es un ingrediente fundamental en muchos problemas de procesamiento de imagen y visión por computador. Esta tesis aborda el problema de la comparación de entornos locales en imágenes, o patches, por medio de medidas de similitud (o funciones distancia). En particular, estudiamos el problema de la comparación invariante afín de imágenes a partir de sus patches, lo cual abre la puerta a un análisis más profundo de la estructura de similitud y auto-similitud existente en imágenes naturales. Nuestro trabajo parte de una aproximación axiomática reciente a las medidas de si

APA, Harvard, Vancouver, ISO, and other styles

5

Yuan, Xiao Chen. "Robust and geometric invariant digital image watermarking." Thesis, University of Macau, 2010. http://umaclib3.umac.mo/record=b2182875.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Cuesta, Contreras Angel. "Geometric and photometric affine invariant image registration." Thesis, Heriot-Watt University, 2009. http://hdl.handle.net/10399/2228.

Full text

Abstract:

This thesis aims to present a solution to the correspondence problem for the registration of wide-baseline images taken from uncalibrated cameras. We propose an affine invariant descriptor that combines the geometry and photometry of the scene to find correspondences between both views. The geometric affine invariant component of the descriptor is based on the affine arc-length metric, whereas the photometry is analysed by invariant colour moments. A graph structure represents the spatial distribution of the primitive features; i.e. nodes correspond to detected high-curvature points, whereas a

APA, Harvard, Vancouver, ISO, and other styles

7

Dahmen, Jörg. "Invariant image object recognition using Gaussian mixture densities." [S.l.] : [s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=964586940.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Liu, Yan. "Rotation, scaling and translation invariant digital image watermarking." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26699.

Full text

Abstract:

Many digital image watermarking schemes have been proposed and are robust to common signal processing, such as compression and filtering. Geometric distortions, such as rotation, scaling, and translation (RST), are considered the most challenging attacks. This thesis is on RST invariant digital image watermarking. In this thesis, we introduce the fundamental theories and techniques necessary for RST invariant digital image watermarking, and briefly review the existing RST invariant image watermarking schemes. Then, we propose an image rectification scheme for RST invariant digital image waterm

APA, Harvard, Vancouver, ISO, and other styles

9

Kovesi, Peter. "Invariant measures of image features from phase information." University of Western Australia. Dept. of Computer Science, 1996. http://theses.library.uwa.edu.au/adt-WU2003.0006.

Full text

Abstract:

If reliable and general computer vision techniques are to be developed it is crucial that we find ways of characterizing low-level image features with invariant quantities. For example, if edge significance could be measured in a way that was invariant to image illumination and contrast, higher-level image processing operations could be conducted with much greater confidence. However, despite their importance, little attention has been paid to the need for invariant quantities in low-level vision for tasks such as feature detection or feature matching. This thesis develops a number of

APA, Harvard, Vancouver, ISO, and other styles

10

Badri, Hicham. "Sparse and Scale-Invariant Methods in Image Processing." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0139/document.

Full text

Abstract:

Dans cette thèse, on présente de nouvelles approches à base de parcimonie et d'invariance d' échelle pour le développement de techniques rapides et efficaces en traitement d'images. Au lieu d'utiliser la norme l1 pour imposer la parcimonie, on exploite plutôt des pénalités non-convexes qui encouragent plus la parcimonie. On propose une approche de premier ordre pour estimer une solution d'un opérateur proximal non-convexe, ce qui permet d'exploiter facilement la non-convexité. On étudie aussi le problème de pluri-parcimonie quand le problème d'optimisation est composé de plusieurs termes parci

APA, Harvard, Vancouver, ISO, and other styles

11

Sitter, David Norbert. "Space invariant modeling in three-dimensional optical image formation." Diss., Georgia Institute of Technology, 1991. http://hdl.handle.net/1853/13450.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Grimes, Catherine Alison. "Neural network techniques for position and scale invariant image classification." Thesis, Open University, 1998. http://oro.open.ac.uk/57866/.

Full text

Abstract:

This research is concerned with the application of neural network techniques to the problems of classifying images in a manner that is invariant to changes in position and scale. In addition to the goal of invariant classification, the network has to classify the objects in a hierarchical manner, in which complex features are constructed from simpler features, and use unsupervised learning. The resultant hierarchical structure should be able to classify the image by having an internal representation that models the structure of the image. After finding existing neural network techniques unsuit

APA, Harvard, Vancouver, ISO, and other styles

13

Yang, Christopher Minzer. "Spectral control of viscous alignment for deformation invariant image matching." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/53158.

Full text

Abstract:

Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2009.<br>Includes bibliographical references (p. 55-57).<br>We present a new approach to deformation invariant image matching. Our approach retains the broad range of linear and nonlinear deformations that viscous alignment methods can model, but introduces a selectivity that is necessary for recognition. Our method models viscous kernels with an over-complete filter basis. The basis is parameterized with a single scalar parameter, the spectral radius r, which selects deformations ran

APA, Harvard, Vancouver, ISO, and other styles

14

Morère, Olivier André Luc. "Deep learning compact and invariant image representations for instance retrieval." Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066406.

Full text

Abstract:

Nous avons précédemment mené une étude comparative entre les descripteurs FV et CNN dans le cadre de la recherche par similarité d’instance. Cette étude montre notamment que les descripteurs issus de CNN manquent d’invariance aux transformations comme les rotations ou changements d’échelle. Nous montrons dans un premier temps comment des réductions de dimension (“pooling”) appliquées sur la base de données d’images permettent de réduire fortement l’impact de ces problèmes. Certaines variantes préservent la dimensionnalité des descripteurs associés à une image, alors que d’autres l’augmentent,

APA, Harvard, Vancouver, ISO, and other styles

15

Morère, Olivier André Luc. "Deep learning compact and invariant image representations for instance retrieval." Electronic Thesis or Diss., Paris 6, 2016. http://www.theses.fr/2016PA066406.

Full text

Abstract:

Nous avons précédemment mené une étude comparative entre les descripteurs FV et CNN dans le cadre de la recherche par similarité d’instance. Cette étude montre notamment que les descripteurs issus de CNN manquent d’invariance aux transformations comme les rotations ou changements d’échelle. Nous montrons dans un premier temps comment des réductions de dimension (“pooling”) appliquées sur la base de données d’images permettent de réduire fortement l’impact de ces problèmes. Certaines variantes préservent la dimensionnalité des descripteurs associés à une image, alors que d’autres l’augmentent,

APA, Harvard, Vancouver, ISO, and other styles

16

Siebert, Andreas. "Invariant representation of image functions under gamma correction and similarity transformations." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape3/PQDD_0016/NQ56622.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Wear, Steven M. "Shift-invariant image reconstruction of speckle-degraded images using bispectrum estimation /." Online version of thesis, 1990. http://hdl.handle.net/1850/11219.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Zaidi, Fatima. "Deep learning-based scale-invariant cancer detection from whole slide image." Thesis, Zaidi, Fatima (2021) Deep learning-based scale-invariant cancer detection from whole slide image. Masters by Research thesis, Murdoch University, 2021. https://researchrepository.murdoch.edu.au/id/eprint/63326/.

Full text

Abstract:

Convential cancer diagnosis methods from whole slide images (WSI) train a deep Convolutional Neural Network (CNN) to make patch level predictions, and then aggregate the image-level predictions to classify a tumour as either benign or malignant. To classify a patch, the CNN extracts features through convolutional layers and then process the feature maps using fully connected layers. The size of the filters used in the convolutional layers defines the receptive field of the network. Small filters are computationally efficient but do not capture a large context. On the other hand, large filters

APA, Harvard, Vancouver, ISO, and other styles

19

Fountain, Stephanie. "Rotation invariant texture analysis for the retrieval and annotation of image databases." Thesis, University of Reading, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302323.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Albukhanajer, Wissam A. "Multi-objective feature extraction and ensembles of classifiers for invariant image identification." Thesis, University of Surrey, 2015. http://epubs.surrey.ac.uk/807832/.

Full text

Abstract:

Robustness to geometrical transformations such as rotation, scaling and translation (RST) as well as noise are major concerns in computer vision and image analysis. This thesis proposes an effective feature extraction approach using Trace transform and ensembles of classifiers for invariant image identification. The key question in Trace transform is to select the best combinations of the Trace functionals to produce and apply the optimal Triple features with minimum computational cost, which is a challenging task because robustness and computational speed conflict with each other. This challe

APA, Harvard, Vancouver, ISO, and other styles

21

Schmitzer, Bernhard [Verfasser], and Christoph [Akademischer Betreuer] Schnörr. "Isometry Invariant Shape Priors for Variational Image Segmentation / Bernhard Schmitzer ; Betreuer: Christoph Schnörr." Heidelberg : Universitätsbibliothek Heidelberg, 2014. http://d-nb.info/1180031431/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Rahtu, E. (Esa). "A multiscale framework for affine invariant pattern recognition and registration." Doctoral thesis, University of Oulu, 2007. http://urn.fi/urn:isbn:9789514286018.

Full text

Abstract:

Abstract This thesis presents a multiscale framework for the construction of affine invariant pattern recognition and registration methods. The idea in the introduced approach is to extend the given pattern to a set of affine covariant versions, each carrying slightly different information, and then to apply known affine invariants to each of them separately. The key part of the framework is the construction of the affine covariant set, and this is done by combining several scaled representations of the original pattern. The advantages compared to previous approaches include the possibility of

APA, Harvard, Vancouver, ISO, and other styles

23

Kachi-Akkouche, Djemaa. "Une approche géométrique pour l'analyse d'une séquence d'images monoculaires." Compiègne, 1996. http://www.theses.fr/1996COMP878S.

Full text

Abstract:

La géométrie projective est un puissant formalisme à potentiel très riche pour l'analyse et la résolution des problèmes liés à la vision par ordinateur. Le travail réalisé s'inscrit dans le cadre de l'analyse d'une séquence d'images monoculaires obtenues par déplacements d'une caméra dans une scène polyédrique. Notre approche est une technique d'auto-calibration qui ne nécessite aucune connaissance a priori concernant la caméra et l'environnement dans lequel elle se déplace. Pour la mise en correspondance des segments de droites entre deux images d'une même séquence, nous avons adopté une méth

APA, Harvard, Vancouver, ISO, and other styles

24

Ojansivu, V. (Ville). "Blur invariant pattern recognition and registration in the Fourier domain." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514292552.

Full text

Abstract:

Abstract Pattern recognition and registration are integral elements of computer vision, which considers image patterns. This thesis presents novel blur, and combined blur and geometric invariant features for pattern recognition and registration related to images. These global or local features are based on the Fourier transform phase, and are invariant or insensitive to image blurring with a centrally symmetric point spread function which can result, for example, from linear motion or out of focus. The global features are based on the even powers of the phase-only discrete Fourier spectrum or

APA, Harvard, Vancouver, ISO, and other styles

25

Klaja, Hubert. "Autour des projections orthogonales : image numérique, principe d’incertitude et problème du sous-espace invariant." Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10036/document.

Full text

Abstract:

Dans cette thèse en théorie des opérateurs, on s’intéresse aux projections orthogonales, à l’image numérique d’un opérateur agissant sur un espace de Hilbert, au principe d’incertitude, au problème du sous-espace invariant et aux perturbations d’opérateurs diagonaux.Après un premier chapitre introductif, on s’intéresse à l’image numérique d’un produit de projections orthogonales et aux applications possibles. On donne une formule explicite de l’image numérique d’un produit de projections orthogonales en fonction de son spectre. On montre comment reconstruire une partie du spectre d’un produit

APA, Harvard, Vancouver, ISO, and other styles

26

Wilbraham, Danelle Alexis. "Using systematic image transformations to reveal invariant properties in the multidimensional perceptual representation of faces." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1276806127.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Ozendi, Mustafa. "Viewpoint Independent Image Classification and Retrieval." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1285011830.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Matusiak, Stanislaw. "Description invariante et locale des formes planes : application à l'indexation d'une base d'images." Valenciennes, 1999. https://ged.uphf.fr/nuxeo/site/esupversions/7570969d-50dd-44f1-84ef-c2e50a0fa07d.

Full text

Abstract:

Cette thèse s'inscrit dans le domaine de l'indexation et de la reconnaissance des formes dans une base d'images constituées d'objets contours, par l'utilisation des invariants locaux. Notre approche permet de reconnaitre les objets, même si ceux-ci sont partiellement visibles ou observés de différents points de vue, car elle est basée sur une caractérisation invariante et locale des contours. Un des problèmes fondamentaux de l'indexation d'une base d'images réside dans le choix de la description invariante de l'image. En effet, on estime que la requête ne correspond jamais exactement à l'image

APA, Harvard, Vancouver, ISO, and other styles

29

Pedone, M. (Matteo). "Algebraic methods for constructing blur-invariant operators and their applications." Doctoral thesis, Oulun yliopisto, 2015. http://urn.fi/urn:isbn:9789526208770.

Full text

Abstract:

Abstract Image acquisition devices are always subject to physical limitations that often manifest as distortions in the appearance of the captured image. The most common types of distortions can be divided into two categories: geometric and radiometric distortions. Examples of the latter ones are: changes in brightness, contrast, or illumination, sensor noise and blur. Since image blur can have many different causes, it is usually not convenient and also computationally expensive to develop ad hoc algorithms to correct each specific type of blur. Instead, it is often possible to extract a blur

APA, Harvard, Vancouver, ISO, and other styles

30

Dellinger, Flora. "Descripteurs locaux pour l'imagerie radar et applications." Thesis, Paris, ENST, 2014. http://www.theses.fr/2014ENST0037/document.

Full text

Abstract:

Nous étudions ici l’intérêt des descripteurs locaux pour les images satellites optiques et radar. Ces descripteurs, par leurs invariances et leur représentation compacte, offrent un intérêt pour la comparaison d’images acquises dans des conditions différentes. Facilement applicables aux images optiques, ils offrent des performances limitées sur les images radar, en raison de leur fort bruit multiplicatif. Nous proposons ici un descripteur original pour la comparaison d’images radar. Cet algorithme, appelé SAR-SIFT, repose sur la même structure que l’algorithme SIFT (détection de points-clés et

APA, Harvard, Vancouver, ISO, and other styles

31

Фенько, Альона Дмитрівна. "Web-система аналізу медичних зображень". Bachelor's thesis, КПІ ім. Ігоря Сікорського, 2021. https://ela.kpi.ua/handle/123456789/44037.

Full text

Abstract:

Дана дипломна робота присвячена розробці web-системи по обробці медичних зображень. Метою роботи є створення web-системи для обробки медичних зображень та виявлення і класифікація метастазів раку молочної залози на повних слайд-зображеннях гістологічних зрізів лімфатичних вузлів. Для досягнення мети були вирішені наступні задачі: 1.Проведено аналіз нових та вже існуючих алгоритмів для автоматичного виявлення і класифікації метастазів раку молочної залози на повних слайд-зображеннях гістологічних зрізів лімфатичних вузлів. 2.Проведено порівняльний аналіз основних архітектур нейронних мереж

APA, Harvard, Vancouver, ISO, and other styles

32

Liu, Kun [Verfasser], and Olaf [Akademischer Betreuer] Ronneberger. "Fourier based rotation invariance and biological image analysis : rotation invariant description and detection, and cell segmentation = Fourier-Rotationsinvarianz und biologische Bildanalyse : rotationsinvariante Beschreibung und Erkennung, und Zellsegmentierung." Freiburg : Universität, 2014. http://d-nb.info/1114829412/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Cayre, François. "Contributions au tatouage des maillages surfaciques 3D." Phd thesis, Télécom ParisTech, 2003. http://tel.archives-ouvertes.fr/tel-00005731.

Full text

Abstract:

Les méthodes de tatouage actuelles pour les maillages surfaciques 3D<br />sont essentiellement le fait de la communauté CAO, et sont assez peu<br />adaptées à une étude en termes de tatouage. Dans un premier temps, nous<br />avons abordé dans ce travail le tatouage par invariants géométriques,<br />dédié aux applications de tatouage fragile. Dans un deuxième temps, nous<br />avons utilisé l'espace de la décomposition spectrale de la géométrie<br />afin d'y enfouir une marque que nous voulons robuste face à la<br />quantification des coefficients spectraux. <br />En tatouage fragile, nous propo

APA, Harvard, Vancouver, ISO, and other styles

34

Dellinger, Flora. "Descripteurs locaux pour l'imagerie radar et applications." Electronic Thesis or Diss., Paris, ENST, 2014. http://www.theses.fr/2014ENST0037.

Full text

Abstract:

Nous étudions ici l’intérêt des descripteurs locaux pour les images satellites optiques et radar. Ces descripteurs, par leurs invariances et leur représentation compacte, offrent un intérêt pour la comparaison d’images acquises dans des conditions différentes. Facilement applicables aux images optiques, ils offrent des performances limitées sur les images radar, en raison de leur fort bruit multiplicatif. Nous proposons ici un descripteur original pour la comparaison d’images radar. Cet algorithme, appelé SAR-SIFT, repose sur la même structure que l’algorithme SIFT (détection de points-clés et

APA, Harvard, Vancouver, ISO, and other styles

35

Konsolakis, Athanasios E. "An invariant display strategy for hyperspectral imagery." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2001. http://handle.dtic.mil/100.2/ADA397058.

Full text

Abstract:

Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, Sept. 2001.<br>Thesis advisor, Cristi, Roberto. "September 2001." Includes bibliographical references (p. 69-71). Also Available in print.

APA, Harvard, Vancouver, ISO, and other styles

36

Sapounas, D. "A novel approach to rotation invariant correlation." Thesis, Cranfield University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283306.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Elliffe, Martin C. M. "Neural networks for Invariant pattern recognition." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302530.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Perissini, Ivan Carlos. "Análise experimental de algoritmos de constância de cor e segmentação para detecção de mudas de plantas." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-25052018-095947/.

Full text

Abstract:

O uso da visão computacional vem ganhando espaço no contexto agrícola, especialmente com a evolução do conceito da agricultura de precisão. Aplicações como irrigação, fertilização e controle de pragas são apenas alguns dos cenários que essa tecnologia pode atender. Entretanto, a demanda por sistemas acessíveis e eficientes aliada às inconstâncias e ruídos visuais de um ambiente externo, apresentam desafios a estes processos. Foi proposto neste trabalho uma análise da literatura e uma série de investidas experimentais de técnicas de processamento de imagens, para buscar melhores relações entre

APA, Harvard, Vancouver, ISO, and other styles

39

Sim, Hak Chuah. "Invariant object matching with a modified dynamic link network." Thesis, University of Southampton, 1999. https://eprints.soton.ac.uk/256269/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Rey, Otero Ives. "Anatomy of the SIFT method." Thesis, Cachan, Ecole normale supérieure, 2015. http://www.theses.fr/2015DENS0044/document.

Full text

Abstract:

Cette thèse est une analyse approfondie de la méthode SIFT, la méthode de comparaison d'images la plus populaire. En proposant un échantillonnage du scale-space Gaussien, elle est aussi la première méthode à mettre en pratique la théorie scale-space et faire usage de ses propriétés d'invariance aux changements d'échelles.SIFT associe à une image un ensemble de descripteurs invariants aux changements d'échelle, invariants à la rotation et à la translation. Les descripteurs de différentes images peuvent être comparés afin de mettre en correspondance les images. Compte tenu de ses nombreuses appl

APA, Harvard, Vancouver, ISO, and other styles

41

Chan, Chi-ho. "Matching patterns of line segments using affine invariant features." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B3462725X.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Chan, Chi-ho, and 陳子濠. "Matching patterns of line segments using affine invariant features." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B3462725X.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Kim, Kang Suk. "3D visualization of an invariant display strategy for hyperspecteral imagery." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Dec%5FKim%5FKang%5FSuk.pdf.

Full text

Abstract:

Thesis (M.S. in Applied Physics and Computer Science)--Naval Postgraduate School, December 2002.<br>Thesis advisor(s): Richard C. Olsen, Donald P. Brutzman. Includes bibliographical references (p. 85-86). Also available online.

APA, Harvard, Vancouver, ISO, and other styles

44

Li, Duwang. "Invariant pattern recognition algorithm using the Hough Transform." PDXScholar, 1989. https://pdxscholar.library.pdx.edu/open_access_etds/3899.

Full text

Abstract:

A new algorithm is proposed which uses the Hough Transform to recognize two dimensional objects independent of their orientations, sizes and locations. The binary image of an object is represented by a set of straight lines. Features of the straight lines, namely the lengths and the angles of their normals, their lengths and the end point positions are extracted using the Hough Transform. A data structure for the extracted lines is constructed so that it is efficient to match the features of the lines of one object to those of another object, and determine if one object is a rotated and/or sca

APA, Harvard, Vancouver, ISO, and other styles

45

Hansen, Peter Ian. "Wide-baseline keypoint detection and matching with wide-angle images for vision based localisation." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/37667/1/Peter_Hansen_Thesis.pdf.

Full text

Abstract:

This thesis addresses the problem of detecting and describing the same scene points in different wide-angle images taken by the same camera at different viewpoints. This is a core competency of many vision-based localisation tasks including visual odometry and visual place recognition. Wide-angle cameras have a large field of view that can exceed a full hemisphere, and the images they produce contain severe radial distortion. When compared to traditional narrow field of view perspective cameras, more accurate estimates of camera egomotion can be found using the images obtained with wide-angle

APA, Harvard, Vancouver, ISO, and other styles

46

Bodapati, Spandana. "Scale-invariant and rotation-invariant image watermarking." 2005. http://digital.library.okstate.edu/etd/umi-okstate-1304.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Huang, Ching-Ya, and 黃靖雅. "RST-invariant image watermarking." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/t2pjs5.

Full text

Abstract:

碩士<br>國立臺灣師範大學<br>資訊工程研究所<br>97<br>Traditional watermarking schemes are sensitive to geometric distortions, in which synchronization for recovering the embedded information is challenging due to the disorder caused from rotation, scaling or translation (RST). This thesis presents robust watermarking algorithms based on SIFT features, which are resilient to geometric attacks, including RST, and even warping. By embedding watermark bits in RST-invariant keypoints in the image and aligning the embedding direction according to the principle axis, watermark can be well preserved and extracted even

APA, Harvard, Vancouver, ISO, and other styles

48

Mavandadi, Sam. "Fourier-based invariant image descriptors /." 2008. http://proquest.umi.com/pqdlink?did=1659882731&sid=1&Fmt=2&clientId=12520&RQT=309&VName=PQD.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Brown, Matthew Alun. "Multi-image matching using invariant features." Thesis, 2005. http://hdl.handle.net/2429/17085.

Full text

Abstract:

This thesis concerns the problems of automatic image stitching and 3D modelling from multiple views. These are basic problems of computer vision, with applications in robotics, architecture, industrial inspection, surveillance, computer graphics and film. Recent work has brought increasing automation to these tasks, but despite a large amount of progress, state-of-the-art algorithms still require some form of user input or assumptions about the image sequence. For example, the best image stitchers currently require an ordered set of input images, or user input to identify the matching im

APA, Harvard, Vancouver, ISO, and other styles

50

Tseng, Chien-Lun, and 曾千倫. "A Rapid Perspective Invariant Image Registration Technology." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/20664577139599902067.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!