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:
May. 17, 2022
Filed:
Dec. 22, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Yusuke Horishita, Kanagawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An encoding apparatus comprises an acquiring unit that acquires image, a divider that divides the image into blocks, and an encoding processor that encodes a block. The encoding processor includes a variable-length encoder that performs quantization on each of pixels in a block so that a code length is no greater than the fixed length, and performs variable-length encoding on quantized block; a determiner that, based on a difference between the code length and the fixed length, determines a size of a free region for filling the fixed length; an analyzer that analyzes each of the pixels and calculates an index value indicating an importance; and a multiplexer that, based on the index values, multiplexes the encoded block data and the bits lost due to the quantization to generate the fixed-length encoded block data.