Television – Bandwidth reduction system – Data rate reduction
Patent
1995-02-23
1997-08-05
Britton, Howard W.
Television
Bandwidth reduction system
Data rate reduction
348402, 348699, H04N 730, H04N 750
Patent
active
056547617
ABSTRACT:
An image processing system for processing a video signal has an encoder and a corresponding decoder wherein the encoder includes a frame decimator; a current frame prediction block for estimating displacements between a previous and a current frames provided from the frame decimator, and providing a predicted current frame based on the displacements; and a subtractor for providing a difference between the predicted and the original current frames and providing motion vectors representing the displacement, and the decoder includes a current frame prediction block for estimating displacements between the previous and the current frames and compensating the previous frame with the displacements to reconstruct the predicted current frame; and an adder for adding the reconstructed predicted current frame with the difference, to thereby reconstruct the current frame.
REFERENCES:
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J.K. Kim and C.M. Kyung, "Fast frame-to-frame Interpolation Technique for Scenes Containing Moving Objects", Electronics Letters, vol. 27, pp. 1788-1790, Sep. 1991.
G. Kummerfeldt et al., "Coding Television Signals at 320 and 64 Kbit/s", SPIE-Image Coding, vol. 594, pp. 119-128, Dec. 1985.
A. Furukawa et al., "Motion-Adaptive Interpolation for Videoconference Pictures", ICC'84-IEEE International Conference on Communications, vol. 2, pp. 707-710, May 1984.
C. Cafforio et al., "Motion Compensated Image Interpolation", IEEE Transactions on Communications, vol. 38, pp. 215-222, Feb. 1990.
Britton Howard W.
Daewoo Electronics Co, Ltd
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