Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2006-11-28
2006-11-28
Vo, Tung (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
07142602
ABSTRACT:
A method segments a video into objects, without user assistance. An MPEG compressed video is converted to a structure called a pseudo spatial/temporal data using DCT coefficients and motion vectors. The compressed video is first parsed and the pseudo spatial/temporal data are formed. Seeds macro-blocks are identified using, e.g., the DCT coefficients and changes in the motion vector of macro-blocks.A video volume is “grown” around each seed macro-block using the DCT coefficients and motion distance criteria. Self-descriptors are assigned to the volume, and mutual descriptors are assigned to pairs of similar volumes. These descriptors capture motion and spatial information of the volumes. Similarity scores are determined for each possible pair-wise combination of volumes. The pair of volumes that gives the largest score is combined iteratively. In the combining stage, volumes are classified and represented in a multi-resolution coarse-to-fine hierarchy of video objects.
REFERENCES:
patent: 6597739 (2003-07-01), Li et al.
patent: 6611262 (2003-08-01), Suzuki
patent: 6621939 (2003-09-01), Negishi et al.
patent: 6859554 (2005-02-01), Porikli et al.
R. de Queiroz, Z. Fan, and T. Tran. Optimizing blockthresholding segmentation for multilayer compression of compound images. IEEE Trans. Image Proc, 2000.
M. Flickner, H. Sawhney, W. Niblack, J. Ashley, Q. Huang, B. Dom, M. Gorkani, J. Hafner, D. Lee, D. Petkovic, D. Steele, and P. Yanker. Query by image and video content. IEEE Computer, pp. 23-31, 1995.
H. Wang and S. Chang. Automatic face region detection in mpeg video sequences. Electronic Imaging and Multimedia Systems, SPIE Photonics China, 1996.
O. Sukmarg and K. Rao. Fast object detection and segmentation in mpeg compressed domain. IEEE TENCON 2000, Kuala Lumpur, Malaysia,, Sep. 2000.
J. Meng and S.F. Chang, CVEPS—a compressed video editing and parsing system, Proceedings of the fourth ACM international conference on Multimedia, 43-53, 1996.
F. Arman, A. Hsu, and M. Chiu. Image processing on compressed data for large video databases. ACM Multimedia, pp. 267-272, 1993.
Divakaran Ajay
Porikli Fatih M.
Sun Huifang
Brinkmen Dirk
Mitsubishi Electric Research Laboratories Inc.
Mueller Clifton D.
Vinouur Gene V.
Vo Tung
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