The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7706441 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 27, 2010

Filed:

Jun. 30, 2003
Applicants:

Byung-sun Choi, Suwon-si, KR;

Jun Xin, Quincy, MA (US);

Inventors:

Byung-sun Choi, Suwon-si, KR;

Jun Xin, Quincy, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/66 (2006.01);
U.S. Cl.
CPC ...
Abstract

A transcoding apparatus and method, and target bit-allocation and picture complexity estimation units and methods used for the same are provided. The transcoding apparatus includes: a video decoding unit which receives a compressed bitstream and performs decoding thereof to output decoded pictures; a complexity estimation unit which estimates complexity of a current picture among the decoded pictures to encode the current picture; a target bit-allocation unit which performs desired bit-allocation using the complexity information of the current picture; a bit-rate control unit which controls bit-rate using bit-allocation information and state information from memory, which outputs an encoded bitstream; and a video encoding unit which encodes the decoded pictures on the basis of the bit-allocation and state information of the bit-rate control unit. Therefore, an effect exists for transcoding that improves image quality.


Find Patent Forward Citations

Choi, Byung-sun. (2010). Transcoding apparatus and method, and target bit allocation and picture complexity estimation apparatus and methods used for the same (U.S. Patent No. 7706441). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7706441

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