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:
Mar. 14, 2006
Filed:
Oct. 19, 2001
Arnaud Bourge, Paris, FR;
Anthony Morel, Xi'An, FR;
Arnaud Bourge, Paris, FR;
Anthony Morel, Xi'An, FR;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The present invention relates to a method of transcoding () a primary encoded signal (S) into a secondary encoded signal (S). Said transcoding method comprising at least a step of decoding a current picture of the primary encoded signal, said decoding step comprising a dequantizing sub-step () for producing a first transformed signal (R), an encoding step, following the decoding step, for obtaining the secondary encoded signal, said encoding step comprising a quantizing sub-step (), and a step of predicting a transformed motion-compensated signal (Rmc) from a transformed encoding error (Re) derived from the encoding step, said prediction step being situated between the encoding and decoding steps. Said method of transcoding further comprises a filtering step (), between the dequantizing sub-step and the quantizing sub-step, for obtaining a better picture quality for low bitrate applications.