Method and apparatus for reordering frames in MPEG coder/decoder

Details Method and apparatus for reordering frames in MPEG coder/decoder Method and apparatus for reordering frames in MPEG coder/decoder

1997-03-27

1999-08-31

Chin, Tommy P.

Television

Bandwidth reduction system

386 6, 386 68, H04N 726

Patent

active

059460377

ABSTRACT:
A method and an apparatus for reordering frames in MPEG coder/decoder, in which input image frames of a displaying order are transformed to a transmitting order, and conversely, transmitted order to the displaying order, for coding and decoding by dividing image frame data into I-pictures, P-pictures, and B-pictures, comprise the steps of: determining whether current input image frames are B-pictures or not, and by-passing to an outer frame buffer if determined to be B-pictures; inputting line-scanned pixel data for B-pictures and storing the line-scanned data into a slice buffer in slice units; reading the stored data from the slice buffer and storing the read data into an inner frame buffer in macro block (MB) units; determining whether the processed slice is the last frame or not and repeating the previous steps, if not; and repeating the above entire steps for the next picture if the processed slice is the last frame.

REFERENCES:
patent: 5247355 (1993-09-01), Frederiksen
patent: 5621464 (1997-04-01), Teo et al.
patent: 5818533 (1998-10-01), Auld et al.

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