Efficient shot change detection on compressed video data

Details Efficient shot change detection on compressed video data Efficient shot change detection on compressed video data

1996-12-02

1999-05-04

Lee, Richard

Television

Image signal processing circuitry specific to television

Motion dependent key signal generation or scene change...

348409, H04N 724

Patent

active

059009195

ABSTRACT:
A mask matching approach to detect shot changes in MPEG coded video uses reference ratio variances of macroblocks between MPEG coded frames. A function is designed to quantize the results into shot change probability values. Moreover, a conversion function modifies this probability computation to minimize misdetection and loss of detection under unusual image pattern situations. A shot change probability threshold is defined for the video to be examined. When a frame's modified shot change probability exceeds this threshold, the frame is considered to contain a shot change. With this approach, processing time is reduced by evaluating MPEG coded data directly, rather than the raw video.

REFERENCES:
patent: 4890160 (1989-12-01), Thomas
patent: 5179449 (1993-01-01), Doi
patent: 5212547 (1993-05-01), Otsuki
patent: 5262856 (1993-11-01), Lippman et al.
patent: 5327232 (1994-07-01), Kim
patent: 5485611 (1996-01-01), Astle
patent: 5488425 (1996-01-01), Grimes
patent: 5606655 (1997-02-01), Arman et al.
patent: 5635982 (1997-06-01), Zhang et al.
patent: 5691775 (1997-11-01), Astle
patent: 5734419 (1998-03-01), Botsford, III et al.
K. Otsuji, Projection Detecting Filter For Video Cut Detection, ACM Multimedia, pp. 251-257, Jun. 1993.
R. Zabih, A Feature-Based Algorithm for Detecting and Classifying Scene Breaks, ACM Multimedia '95, pp. 189-200, (1995).
D. Swanberg, Knowledge Guided Parsing in Video Databases, SPIE, vol. 1908 (1993). pp. 13-24.
F. Arman, Feature Management For Large Video Databases, SPIE, vol. 1908 (1993), pp. 2-12.

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