G - Physics – 06 – T
Patent
G - Physics
06
T
350/33
G06T 9/00 (2006.01) G06T 5/00 (2006.01) H04N 7/26 (2006.01) H04N 7/30 (2006.01) H04N 7/32 (2006.01)
Patent
CA 1318969
ABSTRACT OF THE DISCLOSURE: On encoding an original picture signal comprising signal portions representative of original pictures, respectively, a contrast detecting unit (41) detects a measure of contrast in each picture in response to signal blocks representative of block areas, respectively, which have a common size in the picture in the manner known in transform encoding. Such measures are variable in a predetermined number of stages. With reference to the stages, a picture encoding parameter determiner (72) determines picture encoding parameters, Supplied with the encoding parameters, a picture encoder (71) encodes the original picture signal into an encoded picture signal. Inasmuch as the measures are detected in consideration of the signal blocks, the encoding is carried out on the signal blocks in effect. The contrast detecting unit, as herein called, preferably divides the pictures into a background region and a picture or non-background region so that the encoding parameters are determined with additional reference to the regions. The measures may be detected either among the block areas of each picture or among picture elements of each block area. More preferably, a complexity detecting unit is used in addition to the contrast detecting unit. The picture encoder is typically either a transform encoder or a predictive encoder.
570387
Corporation Nec
Smart & Biggar
LandOfFree
Encoding of a picture signal in consideration of contrast in... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Encoding of a picture signal in consideration of contrast in..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encoding of a picture signal in consideration of contrast in... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1236231