Entropic encoding method and device

Details Entropic encoding method and device Entropic encoding method and device

2006-06-13

2006-06-13

Dang, Duy M. (Department: 2627)

Image analysis

Image compression or coding

C382S238000

Reexamination Certificate

active

07062095

ABSTRACT:
A method of ordering bits in an N-bit status word (s[c]) adapted to represent the state of a coefficient (c) during an entropic encoding of the coefficient in several passes is adapted to modify the value of the last bit N−1 of the status word (s[c]), representing the sign of the status word (s[c]), according to the significance of the coefficient (c). A method for the entropic encoding of a coefficient (c) in several encoding passes using this status word (s[c]) comprises a step of comparing the value of the status word (s[c]) with the value 0 in order to determine whether a first condition is satisfied and a step of applying the first encoding pass to the coefficient (c) when the first condition is satisfied.

REFERENCES:
patent: 5867602 (1999-02-01), Zandi et al.
patent: 2 303 030 (1997-02-01), None
patent: 0 914 004 (1999-05-01), None
Schwartz E.L. et al: “Implementation of Compression with Reversible Embedded Wavelets”, Proceedings of the SPIE, SPIE vol. 2564, pp. 32-43, Jul. 12, 1995.
Chai B -B et al: “Highly Efficient Codec Based on Significance-Linked Connected Component Analysis of Wavelet Coefficients”, Wavelet Applications OV, Orlando, FL, USA, Apr. 22-24, 1997, pp. 647-655.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3628822