Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed
Patent
1996-03-12
1999-07-27
Grant, William
Electrical computers: arithmetic processing and calculating
Electrical digital calculating computer
Particular function performed
348231, 348614, G06F 1710
Patent
active
059283122
ABSTRACT:
A digital filter processing device receives image data of a frame in the order of time series in scanning the frame for carrying out a filter process for every group of image data corresponding to each of a plurality of regions of a predetermined size in the frame. The device receives image data in the order of time series of the scanning operation of a frame to multiply the input image data by a corresponding filter coefficient. This multiplied result is accumulated for every group to be output as an accumulation result. As a result, a region for storing a multiplied result which is an intermediate result of the filter process and an operation for reading out the multiplied result from the storage region for accumulation can be eliminated. Therefore, a filtering process of a frame can be carried out at high speed and in real-time.
REFERENCES:
patent: 5325189 (1994-06-01), Mimura
patent: 5357353 (1994-10-01), Hirota
patent: 5410362 (1995-04-01), Terada et al.
Microcmputer Architecture Symposium Nov. 12, 1991, Japanese Society of Information Processing Engineers of Japan, "Study on parallel processing system by dynamic data driven porcessor" pp. 9-18.
"Two Dimensional Digital Filtering", Proceesings of the IEEE, vol. 63, No. 4, Apr. 1975, Russell M. Mersereau et al, pp. 610-623.
Shichiku Ricardo T.
Yoshida Shin'ichi
Grant William
Marc McDieunel
Sharp Kabushiki Kaisha
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