Coding priority and non-priority image data to be less than a pr

Details Coding priority and non-priority image data to be less than a pr Coding priority and non-priority image data to be less than a pr

1996-11-13

1998-08-25

Tung, Bryan

Television

Bandwidth reduction system

Data rate reduction

348438, H04N 724

Patent

active

057987963

ABSTRACT:
An image encoding apparatus has an encoder for encoding low-resolution image information as priority image information in hierarchical encoding, another encoder for encoding non-priority image information other than the priority image information, a first code quantity controller for controlling a sum total of the generated code quantities of both the priority image information and the non-priority image information within a predetermined value and a code quantity limiter for limiting the generated code quantity of the priority image information within a predetermined ratio to the sum total code quantity.

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1993 Picture Coding Symposium Proceedings, Mar. '93, Lausanne, CH pp. 18.20 A-B, XP000346416 LIU et al. 'Fixed Bit Rate Television Compression System with Specific Application to Digital Video Recording' .
Signal Processing VI Theories and Applications Eusipco-92, vol. I, Aug. '92, Bruxelles, BE pp. 227-230, XP000348648 Ansari et al. 'A Hierarchical Scheme for Coding Video at 4-10 Mbps' .
IEEE Transactions on Circuits and Systems for Video Technology, vol. 3, No. 3, Jun. '93, New York US pp. 230-237, XP000385796 Kinoshita et al. 'Variable-Bit-Rate HDTV CODEC with ATM-Cell-Loss Compensation' .
Singal Processing. Image Communication, vol. 4, No. 4/5, Aug. '92, Amsterdam NL pp. 401-420, XP000293757 DE with et al. 'Digital consumer HDTV recording based on motion-comensated DCT coding of video signals' .

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