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. 29, 2012
Filed:
Mar. 26, 2007
Steffen Wittmann, Morfelden-Walldorf, DE;
Thomas Wedi, Gross-Umstadt, DE;
Steffen Wittmann, Morfelden-Walldorf, DE;
Thomas Wedi, Gross-Umstadt, DE;
Panasonic Corporation, Osaka, JP;
Abstract
Provide is an image decoding apparatus which reliably prevents deterioration of the image quality of decoded images which have been previously coded. An image decoding apparatus () includes: an inverse quantization and inverse orthogonal transform unit () and an adder () which decode a coded image included in a coded stream (Str) to generate a decoded image (Rc); an entropy decoding unit () which extracts cross-correlation data (p) which indicates a cross-correlation between the decoded image (Rc) and an image which corresponds to the decoded image and has not yet been coded; and an adaptive filter () which computes a filter parameter (w) based on the extracted cross-correlation data (p), and performs a filtering operation on the decoded image (Rc) according to the filter parameter (w).