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.:
Date of Patent:
Aug. 28, 2012
Filed:
Dec. 07, 2006
Takahiro Fukuhara, Kanagawa, JP;
Akira Sugiyama, Kanagawa, JP;
Kazuhisa Hosaka, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
The present invention relates to an encoding apparatus, an encoding method, an encoding program, a decoding apparatus, a decoding method and a decoding program for encoding and decoding efficiently a video signal in interlace scanning. An adderand a subtractorrespectively perform addition and subtraction operations on an odd field and an even field of moving image data in interlace scanning. An intra encoderand an intra encoderwavelet transform addition image data and subtraction image data, quantize transform coefficients W, and entropy encode quantization coefficients q. Encoded data output from the intra encoderand the intra encoderis multiplexed into a single encoded stream to be output. Since data with the addition and subtraction operations performed on the odd field and the even field thereof is encoded, dynamic range is doubled while compression efficiency is increased.