Video processing systems

Details Video processing systems Video processing systems

1983-03-16

1987-11-24

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

358 22, 358138, 358180, G06K 900

Patent

active

047093935

ABSTRACT:
A processing system includes a processor 10 and frame store 11. Both the frame store and processor are under the control of address mechanism 12. An incoming pixel is processed with previously stored information and the proportion of processed information restored is controlled to prevent errors in picture information density as store location may be accessed a number of times in a frame period. The addressing mechanism 12 can generate the desired information from address information which is only provided on some of the store locations and which is only updated over more than one frame period. The mechanism includes spatial and temporal interpolators to effect this operation.

REFERENCES:
patent: 4163249 (1979-07-01), Michael et al.
patent: 4266242 (1981-05-01), McCoy
patent: 4383272 (1983-05-01), Netravali et al.
patent: 4402012 (1983-08-01), Knight
patent: 4432009 (1984-02-01), Reitmeier et al.

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