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:
Sep. 02, 2014
Filed:
Apr. 16, 2010
Christophe Papin, Chateaubourg, FR;
Didier Nicholson, Colombes, FR;
Cyril Bergeron, Colombes, FR;
Thales, Neuilly sur Seine, FR;
Abstract
A method for estimating a bit rate and the distortion of at least one compressed image using at least one wavelet transform operation delivering at least one sub-band b containing coefficients, said sub-band being subdivided into at least one packet of coefficients associated with a compression quality layer, said packet also including a packet header and being transmitted through a propagation channel, said method including estimating a distortion Dlinked to a compression of the coefficients of said packet, estimating a distortion D'linked to a corruption or loss of said packet, estimating a compression bit rate L, estimating a sensitivity {tilde over (D)}of said packet according to Dand D′and the bit rate L, and estimating a distortion of said image linked to a decompression of said packet based on {tilde over (D)}.