Method and system for image compression using block size heuristics
AssigneeSorenson Media, Inc.
InventorJonathan J. Dinerstein
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Abstract
The present invention includes a method and system for image compression using block size heuristics. A method for motion searching a video frame is disclosed including iteratively decreasing block size until a rate-distortion (RD) has been minimized. A method for compressing motion video images is disclosed. Additionally, a system for transmitting and receiving video images is disclosed. The system may be a video conferencing system.
Claims22
A method for motion searching each macroblock of a video frame, comprising iteratively decreasing block size until a rate-distortion (RD) has been minimized and selectively reducing the number of block sizes searched.
A method for compressing motion video images comprising:
- inputting a video frame;
- performing a motion search on each macroblock of said video frame including iteratively decreasing block size until a rate-distortion (RD) has been minimized;
- storing a motion vector for each block in said video frame;
- and
- residual coding of motion compensated errors.
A system for transmitting and receiving video images, comprising:
- a processor configured for processing computer instructions and a memory for storing said computer instructions;
- and
- wherein said computer instructions implement a method for compressing motion video images, comprising:
- inputting a video frame;
- performing a motion search on each macroblock of said video frame including iteratively decreasing block size until a rate-distortion (RD) has been minimized;
- storing a motion vector for each block in said video frame;
- and
- residual coding of motion compensated errors.
Dependencies are inferred from the claim text.