Image encoder and image decoder

Details Image encoder and image decoder Image encoder and image decoder

1996-02-28

1998-09-29

Couso, Jose L.

Image analysis

Image compression or coding

G06K 936

Patent

active

058156011

ABSTRACT:
An image encoder for encoding the image data so as to make the image quality of a selected area better than that of the other areas without increasing the amount of data is disclosed. The encoder comprises an area selecting section for selecting a specific area in an image, an area position and shape encoding section for encoding the position and shape of the selected area, a coding parameter adjusting section for adjusting various parameters used to control the image quality and the amount of data in encoding a dynamic image and performing control so that the image quality of the area is encoded more preferably than the image quality of the other areas, a parameter encoding section for encoding the above parameters, a dynamic image encoding section for encoding input dynamic-image data by using the above various parameters, and an encoded data integrating section for combining encoded data by the area position and shape encoding section, the parameter encoding section and the dynamic image encoding section and transmit or store the data. An image decoder applied to the image encoder is also disclosed.

REFERENCES:
patent: 3609685 (1971-09-01), Deutsch
patent: 4550438 (1985-10-01), Convis et al.
patent: 4573201 (1986-02-01), Hashiyama et al.
patent: 4630309 (1986-12-01), Karow
patent: 4777651 (1988-10-01), McCann et al.
patent: 4907282 (1990-03-01), Daly et al.
patent: 5304988 (1994-04-01), Seto
Hiroyuki Okada et al., "A Study on Picture Quality Improvement Technique for Video Codec", Sharp Technical Report No. 6, Dec. 1994, pp. 25-30.
Takashi Nishimura et al., "Real-time Auto Face-tracking System", Sharp Corporation, Apr. 4, 1993, pp. 13-16, 1994.

Affiliated with

Also associated with

Rating

Image encoder and image decoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image encoder and image decoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image encoder and image decoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-694104