The problem of egomotion recovery has been treated by using as input local image motion, with the published algorithms utilizing the geometric constraint relating 2-D local image motion (optical flow, correspondence, ...
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The problem of egomotion recovery has been treated by using as input local image motion, with the published algorithms utilizing the geometric constraint relating 2-D local image motion (optical flow, correspondence, derivatives of the image flow) to 3-D motion and structure. Since it has proved very difficult to achieve accurate input (local image motion), a lot of effort has been devoted to the development of robust techniques. A new approach to the problem of egomotion estimation is taken, based on constraints of a global nature. It is proved that local normal flow measurements form global patterns in the image plane. The position of these patterns is related to the three dimensional motion parameters. By locating some of these patterns, which depend only on subsets of the motion parameters, through a simple search technique, the 3-D motion parameters can be found. The proposed algorithmic procedure is very robust, since it is not affected by small perturbations in the normal flow measurements. As a matter of fact, since only the sign of the normal flow measurement is employed, the direction of translation and the axis of rotation can be estimated with up to 100% error in the image measurements.< >
It is both an honor and a pleasure to hold the 27th Annual Meeting of the German Association for patternrecognition, DAGM 2005, at the Vienna U- versity of Technology, Austria, organized by the patternrecognition an...
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ISBN:
(数字)9783540319429
ISBN:
(纸本)9783540287032
It is both an honor and a pleasure to hold the 27th Annual Meeting of the German Association for patternrecognition, DAGM 2005, at the Vienna U- versity of Technology, Austria, organized by the patternrecognition and imageprocessing (PRIP) group. We received 122 contributions of which we were able to accept 29 as oral presentations and 31 as posters. Each paper received three reviews, upon which decisions were made based on correctness, presentation, technical depth, scienti?c signi?cance and originality. The selection as oral or poster presentation does not signify a quality grading but re?ects attractiveness to the audience which is also re?ected in the order of appearance of papers in these proceedings. The papers are printed in the same order as presented at the symposium and posters are integrated in the corresponding thematic session. In putting these proceedings together, many people played signi?cant roles which we would like to acknowledge. First of all our thanks go to the authors who contributed their work to the symposium. Second, we are grateful for the dedicated work of the 38 members of the Program Committee for their e?ort in evaluating the submitted papers and inprovidingthe necessarydecisionsupport information and the valuable feedback for the authors. Furthermore, the P- gram Committee awarded prizes for the best papers, and we want to sincerely thank the donors. We were honored to have the following three invited speakers at the conf- ence: – Jan P.
The human visual system as a functional unit including the eyes, the nervous system, and the corresponding parts of the brain certainly ranks among the most important means of human information processing. The e?cienc...
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ISBN:
(数字)9780387216430
ISBN:
(纸本)9780387950662;9781475775174
The human visual system as a functional unit including the eyes, the nervous system, and the corresponding parts of the brain certainly ranks among the most important means of human information processing. The e?ciency of the biological systems is beyond the capabilities of today’s technical systems, even with the fastest available computer systems. However, there are areas of application where digital image analysis systems produce acceptable results. Systems in these areas solve very specialized tasks, they operate in a limited environment, and high speed is often not necessary. Several factors determine the economical application of technical vision systems: cost, speed, ?exibility, robu- ness, functionality, and integration with other system components. Many of the recent developments in digital imageprocessing and patternrecognition show some of the required achievements. Computer vision enhances the capabilities of computer systems • in autonomously collecting large amounts of data, • in extracting relevant information, • in perceiving its environment, and • in automatic or semiautomatic operation in this environment. The development of computer systems in general shows a steadily increasing need in computational power, which comes with decreasing hardware costs.
The two volume set LNCS 6854/6855 constitutes the refereed proceedings of the International Conference on Computer Analysis of images and patterns, CAIP 2011, which took place in Seville, Spain, August 29-31, 2011. T...
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ISBN:
(数字)9783642236785
ISBN:
(纸本)9783642236778
The two volume set LNCS 6854/6855 constitutes the refereed proceedings of the International Conference on Computer Analysis of images and patterns, CAIP 2011, which took place in Seville, Spain, August 29-31, 2011.
The 138 papers presented together with 2 invited talks were carefully reviewed and selected from 286 submissions. The papers are organized in topical section on: motion analysis, image and shape models, segmentation and grouping, shape recovery, kernel methods, medical imaging, structural patternrecognition, Biometrics, image and video processing, calibration; and tracking and stereo vision.
Graph-based representation of images is becoming a popular tool since it represents in a compact way the structure of a scene to be analyzed and allows for an easy manipulation of sub-parts or of relationships between...
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ISBN:
(数字)9783709164877
ISBN:
(纸本)9783211831212
Graph-based representation of images is becoming a popular tool since it represents in a compact way the structure of a scene to be analyzed and allows for an easy manipulation of sub-parts or of relationships between parts. Therefore, it is widely used to control the different levels from segmentation to interpretation.
The 14 papers in this volume are grouped in the following subject areas: hypergraphs, recognition and detection, matching, segmentation, implementation problems, representation.
The two volume set LNCS 6854/6855 constitutes the refereed proceedings of the International Conference on Computer Analysis of images and patterns, CAIP 2011, which took place in Seville, Spain, August 29-31, 2011. T...
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ISBN:
(数字)9783642236723
ISBN:
(纸本)9783642236716
The two volume set LNCS 6854/6855 constitutes the refereed proceedings of the International Conference on Computer Analysis of images and patterns, CAIP 2011, which took place in Seville, Spain, August 29-31, 2011.
The 138 papers presented together with 2 invited talks were carefully reviewed and selected from 286 submissions. The papers are organized in topical section on: motion analysis, image and shape models, segmentation and grouping, shape recovery, kernel methods, medical imaging, structural patternrecognition, Biometrics, image and video processing, calibration; and tracking and stereo vision.
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