Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1715/CHENP/2012 A
(19) INDIA
(22) Date of filing of Application :24/02/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : SCALABLE IMAGE CODING AND DECODING
(51) International classification :H04N /26
(31) Priority Document No :09169527.0
(32) Priority Date :04/09/2009
(33) Name of priority country :EPO
(86) International Application No
Filing Date
(87) International Publication No : NA
(61) Patent of Addition to Application
:NA
Number
:NA
Filing Date
(62) Divisional to Application Number
Filing Date
:PCT/IB2010/053780
:23/08/2010
:NA
:NA
(71)Name of Applicant :
1)KONINKLIJKE PHILIPS ELECTRONICS N.V.
Address of Applicant :GROENEWOUDSEWEG 1
EINDHOVEN 5621 BA NETHERLANDS
(72)Name of Inventor :
1)VAN DER VLEUTEN Renatus Josephus
(57) Abstract :
The invention relates to a scalable video (de)coding method for wireless transmission of high definition television signals.
Scalable means that the bitstream contains successively smaller quality refinements and that the bitstream can be truncated. The
video images are divided in slices and each slice is divided in blocks of 8x8 pixels. For each block an optimal encoding method
is chosen. Depending on whether the block is found to contain natural or synthetic image content transform coding (DCT) or
graphic coding is applied. Because the different encoding modes have different properties as regards picture quality the bitstream
format has to enable the encoder to very flexibly choose which bits to send first.
No. of Pages : 18 No. of Claims : 15
The Patent Office Journal 21/06/2013 13894