Correlator device

Details Correlator device Correlator device

1991-12-12

1993-09-21

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

36472805, 382 34, 358105, G06K 900

Patent

active

052475867

ABSTRACT:
Correlation device calculating a correlation between a current block of a first image and symbol blocks taken from a second image to determine the displacement vectors. Selection means (26) (27) select a limited number of symbols contained in the said blocks to which the correlation calculation relates. This selection can be effected by either a random choice or as a function of the data content of the blocks. The said current block can be divided into zones onto which the selection means act. A correlator (25) performs the correlation calculation block-sequentially on the overall current block and a decision unit (28) determines the displacement vector. It is possible to chose for the correlator (25) an architecture which promotes either its calculation rate or a reduction in its hardware bulk. The invention is used to reduce the flow of data to be transmitted, more specifically for image (television, videophone) or sound processing.

REFERENCES:
patent: 4937878 (1990-06-01), Lo et al.
patent: 5109438 (1992-04-01), Alves et al.

Affiliated with

Also associated with

Rating

Correlator 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 Correlator device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlator device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1056397