Method and apparatus for encoding and decoding image data

Details Method and apparatus for encoding and decoding image data Method and apparatus for encoding and decoding image data

1994-04-28

1996-01-16

Britton, Howard W.

Television

Bandwidth reduction system

Data rate reduction

348420, 348423, H04N 736

Patent

active

054852137

ABSTRACT:
A designated field image is extracted instead of a frame image and only the effective block of the field image which was judged as a block having a change is also encoded. Block information and field information are added to the encoded block and the resultant data is transmitted as moving image code data. On the decompressing side, only the field image data separated from the moving image code data is decompressed and updated and the updated field is copied as another field which was not updated, thereby decompressing the image data of one frame. The field image data is alternately switched and encoded. Further, when a code amount increases, the same field as the previous frame is encoded. On the decompressing side, the updated field image data is copied to the field image data which is not updated and two field images are equalized, thereby preventing a visual deviation due to a difference between the field images.

REFERENCES:
patent: 5093720 (1992-03-01), Krause
patent: 5227878 (1993-07-01), Puri

Affiliated with

Also associated with

Rating

Method and apparatus for encoding and decoding image data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for encoding and decoding image data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for encoding and decoding image data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-312934