Image processing device and method for sensing moving objects an

Details Image processing device and method for sensing moving objects an Image processing device and method for sensing moving objects an

1991-07-08

1993-05-18

Peng, John K.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358139, H04N 718, H04N 1700

Patent

active

052125475

ABSTRACT:
An image processing device and method for detecting moving objects against complex moving backgrounds, and a rangefinder based thereon are disclosed. The device and method are applicable to rapid and selective evaluation of complex visual fields, without the need for extensive numerical processing. The disclosed image processing method comprises the steps of obtaining sequential video frame data; storing video data in memory for a consecutive series of video frames obtained over a predetermined time interval in the past at a predetermined sampling rate; obtaining a standard image by averaging the video data stored in memory for the predetermined time interval so as to obtain video data representing a composite image for the predetermined time interval; and subtracting the video data for the standard image from video data for a current video frame.

REFERENCES:
patent: 4729021 (1988-03-01), Kondo
patent: 5023712 (1991-06-01), Kajiwara
patent: 5023713 (1991-06-01), Nishigori

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