Results 281 to 290 of about 319,555 (318)

Motion analysis of isolated targets in infrared image sequences

Pattern Recognition Letters, 1987
Abstract We describe a simple algorithm for estimating the 3-D motion of isolated targets in infrared image sequences. The algorithm is based on analyzing the changes in the shapes and the relative positions of segmented image regions. Experimental results of applying this algorithm to single IR images and to an image sequence are presented.
Jean-Pierre Gambotto, Thomas S. Huang
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Image sequence analysis workstation for multipoint motion analysis

SPIE Proceedings, 1990
This paper describes an application-specific engineering workstation designed and developed to analyze motion of objects from video sequences. The system combines the software and hardware environment of a modem graphic-oriented workstation with the digital image acquisition, processing and display techniques.
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Motion Analysis with the Radon Transform on Log-Polar Images

Journal of Mathematical Imaging and Vision, 2007
Image projections provide an effective way of describing image contents or estimate particular kinds of motion. However, most (if not all) of previous literature on projections has been done on Cartesian images. In contrast, the work described in this paper is aimed at exploring how projections can be defined on log-polar images and how they perform in
V. Javier Traver, Filiberto Pla
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Motion parameter constraints analysis from a single image

Proceedings 1999 International Conference on Image Processing (Cat. 99CH36348), 2003
Motion parameter estimation is a fundamental problem in image processing and image understanding. A large number of algorithms have been proposed based on a number of different geometrical considerations, such as perspective or epipolar geometries. However, proposed motion estimation algorithms do not explicitly use the distance between feature points ...
Marcos A. Rodrigues 0001, Yonghuai Liu
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Motion Analysis for Image Enhancement: Resolution, Occlusion, and Transparency

Journal of Visual Communication and Image Representation, 1993
Abstract Accurate computation of image motion enables the enhancement of image sequences. In scenes having multiple moving objects the motion computation is performed together with object segmentation by using a unique temporal integration approach. After the motion for the different image regions is computed, these regions can be enhanced by fusing ...
Michal Irani, Shmuel Peleg
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Analysis of long image sequence for structure and motion estimation

IEEE Transactions on Systems, Man, and Cybernetics, 1989
A motion parameter estimation technique is presented for image sequence analysis of several frames. A dynamic scene model is developed in which image sequences are processed as a temporally correlated complex. Using this model, measurement of the position of the object in a set of consecutive frames permits the estimation of motion as a function of ...
Gwo-Jyh Tseng, Arun K. Sood
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Analysis and correction of motion artifacts in diffusion weighted imaging

Magnetic Resonance in Medicine, 1994
AbstractFor diffusion‐weighted magnetic resonance imaging and under circumstances where patient movement can be modeled as rigid body motion, it is shown both theoretically and experimentally that translations and rotations produce phase errors which are zero‐ and first‐order, respectively, in position.
A W, Anderson, J C, Gore
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Analysis of the weak solution approach to image motion estimation

Pattern Recognition, 1987
Abstract Several extensions and illustrations of the weak solution-based approach to image motion modelling and estimation are presented. In particular, the cases of discontinuous image motion, uniqueness of the weak solution, error analysis and multiple weak formulations and multiple object motion are considered.
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Motion Analysis and Image Sequence Processing

1993
Preface. 1. Hierarchical Model-Based Motion Estimation P. Anandan, J.R. Bergen, K.J. Hanna, R. Hingorani. 2. An Estimation Theoretic Perspective on Image Processing and the Calculation of Optical Flow T.M. Chin, M.R. Luettgen, W.C. Karl, A.S. Willsky. 3.
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Image sequence analysis of real world human motion

Pattern Recognition, 1984
Abstract Three fundamental problems of image sequence analysis are investigated for real world human motions. The first one is the modelling of body motion, which is approached by the methods of key frame sequence of stick figures and generalized cone approximation of body parts.
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