Journal Article10.1007/BF01211449
Multiresolution image motion detection and displacement estimation
Shuwu Song,Mengyang Liao,Jamei Qin +2 more
- 01 Feb 1990
- Vol. 3, Iss: 1, pp 17-20
TL;DR: A motion vision system is developed in which a moving object can be detected and image displacement can be estimated based on human visual characteristics and use of a multiresolution image.
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Abstract: A motion vision system is developed in which a moving object can be detected and image displacement can be estimated based on human visual characteristics and use of a multiresolution image. The system consists of four parts: (1) Temporal gradient, logic AND, and dynamic thresholding operations are used to obtain the primary mask. (2) A region growing algorithm is applied. (3) A hierarchical object detection algorithm is used to identify image patterns. (4) Displacement of the image is estimated by breaking each frame of the motion sequence into local regions (edges). A search is undertaken to discover how the image pattern within a given region appears displaced. This search takes the form of motion channels, the output of which are used to obtain the estimation of displacement. A correlative measure is proposed to match the patterns.
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Citations
Image difference threshold strategies and shadow detection
Paul L. Rosin,Tim Ellis +1 more
- 01 Jul 1995
TL;DR: Two problems associated with the detection and classification of motion in image sequences obtained from a static camera are considered, and an algorithm based on hysteresis thresholding is shown to give acceptably good results over a number of test image sets.
Vision-based tracking of a dynamic target with application to multi-axis position control
TL;DR: The proposed camera-pixel grid sensing setup eliminates the reliance on the kinematic model and also avoids the need for traditional error compensation techniques, along with their associated cost and complexity.
High Resolution Vision-Based Servomechanism Using a Dynamic Target with Application to CNC Machines
Carlos A. Montes-Solano
- 01 Jan 2011
TL;DR: In this paper, a three dimensional vision-based servomechanism with application to real-time position control for manufacturing equipment, such as Computer Numerical Control (CNC) machine tools, is presented.
Image analysis and computer vision: 1990
TL;DR: A bibliography of over 1600 references related to computer vision and image analysis, arranged by subject matter is presented, covering topics including architectures; computational techniques; feature detection, segmentation, and imageAnalysis.
References
The Laplacian Pyramid as a Compact Image Code
Peter J. Burt,Edward H. Adelson +1 more
TL;DR: A technique for image encoding in which local operators of many scales but identical shape serve as the basis functions, which tends to enhance salient image features and is well suited for many image analysis tasks as well as for image compression.
A hierarchical data structure for picture processing
TL;DR: In order to speed up several picture processing operations, including edge detection, a “pyramid” (hierarchy of fine to coarse resolution versions of a picture) is produced because of the low spatial frequencies preserved in coarse pictures.
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Fast filter transform for image processing
TL;DR: A highly efficient recursive algorithm is defined for simultaneously convolving an image (or other two-dimensional function) with a set of kernels which differ in width but not in shape, so that the algorithm generates aSet of low-pass or band-pass versions of the image.
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The Detection and Segmentation of Blobs in Infrared Images
Lewis G. Minor,Jack Sklansky +1 more
- 01 Mar 1981
TL;DR: A computer procedure for detecting and finding the boundaries of blobs in noisy infrared images is described, which resulted in only two false negatives and no false detections on a data base of 81 targets.
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