High-efficiency coding method, high-efficiency coding apparatus,

Details High-efficiency coding method, high-efficiency coding apparatus, High-efficiency coding method, high-efficiency coding apparatus,

1996-03-19

1998-10-06

Boudreau, Leo H.

Image analysis

Image compression or coding

Interframe coding

382239, G06K 900

Patent

active

058189688

ABSTRACT:
A high-efficiency coding apparatus is provided which can increase accuracy in motion compensation and also increase processing speed without increasing the circuit scale as compared with the case that motion detection is carried out with respect to both of even and odd fields. Thus, this high-efficiency coding apparatus can perform accurate encoding, and can realize satisfactory transmission or recording of information. This high-efficiency coding apparatus is formed with frame memories for storing image information of a present frame therein, a frame memory for storing image information of a preceding frame therein, a frame type/2-field type motion detecting circuit for obtaining frame motion vector data of half-pel accuracy and 2-field motion vector data of half-pel accuracy by effecting motion detection of pixel data located within reference blocks located within the search area of a preceding frame and pixel data located within a remarkable block of the present frame, and selectively outputting these motion vector data. A motion compensating circuit effects motion compensation based on the selected output and an adding circuit effects encoding of the image information of the present frame and motion-compensated image information.

REFERENCES:
patent: 4307420 (1981-12-01), Ninomiya et al.
patent: 5194950 (1993-03-01), Murakami et al.
patent: 5398078 (1995-03-01), Masuda et al.
patent: 5450209 (1995-09-01), Niimura et al.
patent: 5650829 (1997-07-01), Sugimoto et al.

Affiliated with

Also associated with

Rating

High-efficiency coding method, high-efficiency coding apparatus, does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High-efficiency coding method, high-efficiency coding apparatus,, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-efficiency coding method, high-efficiency coding apparatus, will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-87947