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:
Jul. 21, 2020
Filed:
Oct. 17, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Eishi Takeda, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image coding apparatus comprising a coding unit generating coded data by executing prediction coding of an image of a coding target frame, a compression/decompression unit compressing a decoded image obtained by decoding the coded data and store it in a memory, and decompressing a compressed decoded image and output the decompressed decoded image as a reference image in the prediction coding, and a compression ratio calculation unit calculating a compression ratio of the compressed decoded image from the decoded image before compression and the compressed decoded image, wherein in accordance with the compression ratio of the compressed decoded image corresponding to a reference image used in inter-prediction coding processing among the stored compressed decoded images, execution of the bidirectional prediction using the reference image is controlled.