Television – Object tracking
Patent
1992-06-30
1994-05-10
Chin, Tommy P.
Television
Object tracking
348208, 348416, H04N 718
Patent
active
053113055
ABSTRACT:
Edges/corners in an image can be detected and tracked over time by first sampling the image at periodic time intervals, and then processing the samples to obtain the intensity value for each pixel within each image acquired at a particular time. For each pixel, the bidirectional intraframe correlation of its intensity with the intensities of pixels along each of several directions within the same image is computed. Also, the bidirectional interframe correlation of the intensity of each pixel in each image with the intensities of pixels along each of several directions spanning several images is established. The intraframe and interframe intensity correlations are processed to obtain spatiotemporal tangent information about isobrightness surfaces and curves which are indicative of edges and corners, respectively, and their image motions.
REFERENCES:
patent: 4884136 (1989-11-01), Ninomiya et al.
patent: 5018218 (1991-05-01), Peregrim et al.
patent: 5053876 (1991-10-01), Blissett et al.
patent: 5153719 (1992-10-01), Ibenthal
R. C. Bolles, H. H. Baker, and D. H. Marimont, "Epipolar-Plane Image Analysis: An Approach to Determining Structure from Motion," International Journal of Computer Vision, vol. 1, (1987), pp. 7-55.
Mahadevan Ramaswamy
Nalwa Vishvjit S.
AT&T Bell Laboratories
Chin Tommy P.
Lee Richard
Levy Robert B.
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