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. 05, 2025
Filed:
May. 13, 2024
Orange, Issy les Moulineaux, FR;
Félix Henry, Chatillon, FR;
Mohsen Abdoli, Chatillon, FR;
ORANGE, Issy les Moulineaux, FR;
Abstract
A method and device for coding and decoding a coded data stream representative of at least one image split into blocks. For a current block, a group of pixel values in the block is determined from previously decoded pixels, and for each pixel, a prediction residue is decoded. A prediction value for the pixel is determined according to a first prediction mode by predicting the pixel from at least one other previously decoded pixel belonging to the current block. Information is decoded from the stream indicating whether the pixel is predicted according to a second prediction mode using a prediction resulting from the group of pixel values in the block. When the pixel is predicted according the second mode, the prediction value for the pixel is replaced with a selected value of the group. The pixel is reconstructed using the prediction value associated with the pixel and the prediction residue.