Digital data compression with quad-tree coding of header file

Details Digital data compression with quad-tree coding of header file Digital data compression with quad-tree coding of header file

1997-01-16

2000-07-25

Tung, Bryan

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

348420, 382232, H04N 724

Patent

active

060944536

ABSTRACT:
A system and method for digital live video transmission is disclosed. According to the system, live or full-motion video is transmitted over plain old telephone system ("POTS") wiring. Successive frames of a video image are captured or received in a source computer, and are then processed prior to transmission. A destination computer reverses the process after the image is received. Quad-tree encoding techniques are preferably employed. A unique YUV pixel representation scheme is used where the pixel data is truncated for further compression. Proportional dithering is applied to smooth the received image, which is preferably displayed on a video screen. Approximately 30 frames per second of video data is transmitted synchronously over twisted pair wiring at currently achievable baud rates.

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