Shuffling device, coding device, decoding device of video...

Details Shuffling device, coding device, decoding device of video... Shuffling device, coding device, decoding device of video...

2005-01-25

2005-01-25

Diep, Nhon (Department: 2613)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C386S349000, C386S349000

Reexamination Certificate

active

06847685

ABSTRACT:
A video signal shuffling device forms a segment with blocks having a given offset value in horizontal and vertical directions from a given starting point uniquely determined on the screen, the offset value being identical in every region. The segment is formed in a unit of one frame or two frames. The shuffling device divides one frame comprising blocks into a plurality of regions. A coding device determines a final priority as well as a final quantizer thereby quantizing a segment and providing the segment with a variable-length-coding based on a first priority, coding-quantity obtained from a plurality of quantizers, second priority and a quantizer. A coding device and its decoder, the coding device carries out a hierarchical coding by only a motion vector in a compressed stream at a lower resolution side and by agreeing a motion detected and a DCT block size with a size on the screen.

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European Search Report for EP 00 11 2297, dated Apr. 16, 2004.

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