continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6365/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :21/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : METHODS AND APPARATUS FOR EDGE-BASED SPATIO-TEMPORAL FILTERING
(51) International classification :H04N 7/26 (71)Name of Applicant :
(31) Priority Document No :60/764,252
1)THOMSON LICENSING
(32) Priority Date :31/01/2006
Address of Applicant :46 QUAI A. LE GALLO, F-92100
(33) Name of priority country :U.S.A.
BOULOGNE-BILLANCOURT (FR) France
(86) International Application No :PCT/US2007/002578 (72)Name of Inventor :
Filing Date
:30/01/2007
1)TOURAPIS, ALEXANDROS
(87) International Publication No :WO 2007/089803 2)BOYCE, JILL MACDONALD
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
There are provided methods and apparatus for edge-based spatio-temporal filtering. An apparatus for filtering a sequence of pictures
includes a spatial filter (110, 190), a motion compensator (130), a deblocking filter (140), and a temporal filter (150). The spatial filter
(110, 190) is for spatially filtering a picture in the sequence and at least one reference picture selected from among previous pictures
and subsequent pictures in the sequence with respect to the picture. The motion compensator (130), in signal communication with the
spatial filter, is for forming, subsequent to spatial filtering, multiple temporal predictions for the picture from the at least one reference
picture. The deblocking filter (140), in signal communication with the motion compensator, is for deblock filtering the multiple
temporal predictions. The temporal filter (150), in signal communication with the deblocking filter, is for temporally filtering the
multiple temporal predictions and combining the multiple temporal predictions to generate a noise reduced version of the picture.
No. of Pages : 25 No. of Claims : 26
The Patent Office Journal 24/10/2008 25825