Markov model image encoding device and method

Details Markov model image encoding device and method Markov model image encoding device and method

1997-06-16

1999-11-16

Lee, Thomas D

Image analysis

Image compression or coding

Adaptive coding

382251, 382238, G06K 936

Patent

active

059871822

ABSTRACT:
A plurality of reference pixel extracting means check their corresponding reference pixel ranges and pixel values in predetermined auxiliary regions. Reference pixel range selecting means selects a reference pixel range based on the checked pixel values. When the number of types of pixel values for an input image is found to be locally low in the selected reference pixel range, the number of reference pixels is increased. On the other hand, when the number of types of the pixel values for the input image is found to be locally large, the number of reference pixels is decreased. As a result, states can be generated by a Markov model image encoding system capable of improving encoding efficiency without increasing the number of the states sharply. Owing to the above construction, even when the number of tones for the input image is high upon Markov model image encoding, the number of reference pixels can be increased without abruptly increasing the number of states later on to improve compression efficiency.

REFERENCES:
patent: 5297220 (1994-03-01), Nomizu
patent: 5491564 (1996-02-01), Hongu
patent: 5764804 (1998-06-01), Yajima et al.
Compression of Image Information, pp. 171 to 176, OHM Co., Ltd., (1991).
A Study of Still Image Prediction Based on Learning Markov Model (Proceedings of the 1995 IEICE General Conference, D-284, (1995).

Affiliated with

Also associated with

Rating

Markov model image encoding device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Markov model image encoding device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Markov model image encoding device and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1334778