US 5,493,514 A · Process, apparatus, and system for encoding and decoding video signals

Abstract

For encoding, each video frame is segmented into slices; each slice, into macroblocks; and each macroblock, into blocks. Encoded macroblock and block signals are generated corresponding to macroblock and block information of each slice, respectively. An encoded bitstream is generated in accordance with the encoded macroblock and block signals, wherein all of the macroblock signals for each slice precede all of the block signals for each slice. For decoding, an encoded bitstream is received, wherein (1) a portion of the encoded bitstream corresponding to each video frame corresponds to slices; and (2) a portion of the encoded bitstream corresponding to each slice comprises encoded macroblock signals followed by block signals for the entire slice. The macroblock and block signals of each slice are decoded and decoded video signals are generated in accordance with the decoded macroblock and block signals.

Claims43

Dependent claims

A computer-implemented process for encoding video signals comprising a plurality of video frames, comprising the steps of:

(a) segmenting each video frame of the plurality of video frames into one or more slices;
(b) segmenting each slice into one or more macroblocks;
(c) segmenting each macroblock into one or more blocks;
(d) generating encoded macroblock signals corresponding to macroblock information of each slice;
(e) generating encoded block signals corresponding to block information of each slice;
and
(f) generating an encoded bitstream in accordance with the encoded macroblock signals and the encoded block signals, wherein all of the macroblock signals for each slice precede all of the block signals for each slice.

4 more elements

An apparatus for encoding video signals comprising a plurality of video frames, comprising:

(a) means for segmenting each video frame of the plurality of video frames into one or more slices;
(b) mean for segmenting each slice into one or more macroblocks;
(c) means for segmenting each macroblock into one or more blocks;
(d) means for generating encoded macroblock signals corresponding to macroblock information of each slice;
(e) means for generating encoded block signals corresponding to block information of each slice;
and
(f) means for generating an encoded bitstream in accordance with the encoded macroblock signals and the encoded block signals, wherein all of the macroblock signals for each slice precede all of the block signals for each slice.

4 more elements

A system for encoding video signals, comprising:

(a) a video source for providing unencoded video signals comprising a plurality of video frames;
(b) a conferencing system for:
(1) segmenting each video frame of the plurality of video frames into one or more slices;
(2) segmenting each slice into one or more macroblocks;
(3) segmenting each macroblock into one or more blocks;
(4) generating encoded macroblock signals corresponding to macroblock information of each slice;
(5) generating encoded block signals corresponding to block information of each slice;
and
(6) generating an encoded bitstream in accordance with the encoded macroblock signals and the encoded block signals, wherein all of the macroblock signals for each slice precede all of the block signals for each slice.

6 more elements

A computer-implemented process for decoding video signals, comprising the steps of:

(a) receiving an encoded bitstream corresponding to a plurality of video frames, wherein:
a portion of the encoded bitstream corresponding to each video frame of the plurality of video frames corresponds to one or more slices;
and
a portion of the encoded bitstream corresponding to each slice comprises encoded macroblock signals for the entire slice followed by block signals for the entire slice;
(b) decoding the macroblock signals of each of the slices of each of the video frames;
(c) decoding the blocks signals of each of the slices of each of the video frames;
and
(d) generating decoded video signals in accordance with the decoded macroblock signals and the decoded block signals.

5 more elements

An apparatus for decoding video signals, comprising:

(a) means for receiving an encoded bitstream corresponding to a plurality of video frames, wherein:
a portion of the encoded bitstream corresponding to each video frame of the plurality of video frames corresponds to one or more slices;
and
a portion of the encoded bitstream corresponding to each slice comprises encoded macroblock signals for the entire slice followed by block signals for the entire slice;
(b) means for decoding the macroblock signals of each of the slices of each of the video frames;
(c) means for decoding the blocks signals of each of the slices of each of the video frames;
and
(d) means for generating decoded video signals in accordance with the decoded macroblock signals and the decoded block signals.

5 more elements

A system for decoding video signals, comprising the steps of:

(a) a monitor;
and
(b) a conferencing system for:
(1) receiving an encoded bitstream corresponding to a plurality of video frames, wherein:
a portion of the encoded bitstream corresponding to each video frame of the plurality of video frames corresponds to one or more slices;
and
a portion of the encoded bitstream corresponding to each slice comprises encoded macroblock signals for the entire slice followed by block signals for the entire slice;
(2) decoding the macroblock signals of each of the slices of each of the video frames;
(3) decoding the blocks signals of each of the slices of each of the video frames;
(4) generating decoded video signals in accordance with the decoded macroblock signals and the decoded block signals;
and
(5) transmitting the decoded video signals to the monitor for display.

9 more elements

Dependencies are inferred from the claim text.

Process, apparatus, and system for encoding and decoding video signals

Life of this patent

Process, apparatus, and system for encoding and decoding video signals

Life of this patent

Abstract

Claims43