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Scale-Space Theory in Computer Vision

1993-12-31 Computers
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Release : 1993-12-31
Genre : Computers
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Book Synopsis Scale-Space Theory in Computer Vision by : Tony Lindeberg

Download or read book Scale-Space Theory in Computer Vision written by Tony Lindeberg. This book was released on 1993-12-31. Available in PDF, EPUB and Kindle. Book excerpt: The problem of scale pervades both the natural sciences and the vi sual arts. The earliest scientific discussions concentrate on visual per ception (much like today!) and occur in Euclid's (c. 300 B. C. ) Optics and Lucretius' (c. 100-55 B. C. ) On the Nature of the Universe. A very clear account in the spirit of modern "scale-space theory" is presented by Boscovitz (in 1758), with wide ranging applications to mathemat ics, physics and geography. Early applications occur in the cartographic problem of "generalization", the central idea being that a map in order to be useful has to be a "generalized" (coarse grained) representation of the actual terrain (Miller and Voskuil 1964). Broadening the scope asks for progressive summarizing. Very much the same problem occurs in the (realistic) artistic rendering of scenes. Artistic generalization has been analyzed in surprising detail by John Ruskin (in his Modern Painters), who even describes some of the more intricate generic "scale-space sin gularities" in detail: Where the ancients considered only the merging of blobs under blurring, Ruskin discusses the case where a blob splits off another one when the resolution is decreased, a case that has given rise to confusion even in the modern literature.

Front-End Vision and Multi-Scale Image Analysis

2008-10-24 Computers
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Release : 2008-10-24
Genre : Computers
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Book Synopsis Front-End Vision and Multi-Scale Image Analysis by : Bart M. Haar Romeny

Download or read book Front-End Vision and Multi-Scale Image Analysis written by Bart M. Haar Romeny. This book was released on 2008-10-24. Available in PDF, EPUB and Kindle. Book excerpt: Many approaches have been proposed to solve the problem of finding the optic flow field of an image sequence. Three major classes of optic flow computation techniques can discriminated (see for a good overview Beauchemin and Barron IBeauchemin19951): gradient based (or differential) methods; phase based (or frequency domain) methods; correlation based (or area) methods; feature point (or sparse data) tracking methods; In this chapter we compute the optic flow as a dense optic flow field with a multi scale differential method. The method, originally proposed by Florack and Nielsen [Florack1998a] is known as the Multiscale Optic Flow Constrain Equation (MOFCE). This is a scale space version of the well known computer vision implementation of the optic flow constraint equation, as originally proposed by Horn and Schunck [Horn1981]. This scale space variation, as usual, consists of the introduction of the aperture of the observation in the process. The application to stereo has been described by Maas et al. [Maas 1995a, Maas 1996a]. Of course, difficulties arise when structure emerges or disappears, such as with occlusion, cloud formation etc. Then knowledge is needed about the processes and objects involved. In this chapter we focus on the scale space approach to the local measurement of optic flow, as we may expect the visual front end to do. 17. 2 Motion detection with pairs of receptive fields As a biologically motivated start, we begin with discussing some neurophysiological findings in the visual system with respect to motion detection.

Curvature Scale Space Representation: Theory, Applications, and MPEG-7 Standardization

2013-11-11 Computers
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Release : 2013-11-11
Genre : Computers
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Book Rating : 434/5 ( reviews)

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Book Synopsis Curvature Scale Space Representation: Theory, Applications, and MPEG-7 Standardization by : F. Mokhtarian

Download or read book Curvature Scale Space Representation: Theory, Applications, and MPEG-7 Standardization written by F. Mokhtarian. This book was released on 2013-11-11. Available in PDF, EPUB and Kindle. Book excerpt: MPEG-7 is the first international standard which contains a number of key techniques from Computer Vision and Image Processing. The Curvature Scale Space technique was selected as a contour shape descriptor for MPEG-7 after substantial and comprehensive testing, which demonstrated the superior performance of the CSS-based descriptor. Curvature Scale Space Representation: Theory, Applications, and MPEG-7 Standardization is based on key publications on the CSS technique, as well as its multiple applications and generalizations. The goal was to ensure that the reader will have access to the most fundamental results concerning the CSS method in one volume. These results have been categorized into a number of chapters to reflect their focus as well as content. The book also includes a chapter on the development of the CSS technique within MPEG standardization, including details of the MPEG-7 testing and evaluation processes which led to the selection of the CSS shape descriptor for the standard. The book can be used as a supplementary textbook by any university or institution offering courses in computer and information science.

Scale Space and Variational Methods in Computer Vision

2021
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Release : 2021
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Book Rating : 508/5 ( reviews)

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Book Synopsis Scale Space and Variational Methods in Computer Vision by : Abderrahim Elmoataz

Download or read book Scale Space and Variational Methods in Computer Vision written by Abderrahim Elmoataz. This book was released on 2021. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 8th International Conference on Scale Space and Variational Methods in Computer Vision, SSVM 2021, which took place during May 16-20, 2021. The conference was planned to take place in Cabourg, France, but changed to an online format due to the COVID-19 pandemic. The 45 papers included in this volume were carefully reviewed and selected from a total of 64 submissions. They were organized in topical sections named as follows: scale space and partial differential equations methods; flow, motion and registration; optimization theory and methods in imaging; machine learning in imaging; segmentation and labelling; restoration, reconstruction and interpolation; and inverse problems in imaging. .

Scale-Space Theory in Computer Vision

1997-06-18 Computers
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Release : 1997-06-18
Genre : Computers
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Book Rating : 675/5 ( reviews)

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Book Synopsis Scale-Space Theory in Computer Vision by : Bart ter Haar Romeny

Download or read book Scale-Space Theory in Computer Vision written by Bart ter Haar Romeny. This book was released on 1997-06-18. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the First International Conference on Scale-Space Theory for Computer Vision, Scale-Space '97, held in Utrecht, The Netherlands, in July 1997. The volume presents 21 revised full papers selected from a total of 41 submissions. Also included are 2 invited papers and 13 poster presentations. This book is the first comprehensive documentation of the application of Scale-Space techniques in computer vision and, in the broader context, in image processing and pattern recognition.

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