Matsushita Electric Industrial Co., Ltd.

Toshihisa Kuroda

Shigeru Nishimura

Koichi Kawata

Shin-ichiro Aoki

In a moving body tracking apparatus having a moving body recognition circuit and TV camera, the moving body recognition circuit includes: a contour signal generator for producing a first contour signal indicative of contour of an image defined by at least one field, a second contour signal subsequent to the first contour signal, and a third contour signal subsequent to the second contour signal, a first and a second memory for temporarily storing, respectively the first and the second contour signals; contour line width increasing circuit responsive to the first and second memory for increasing the width of contour line represented by output signals of the first and second memory; and comparator responsive to the third contour signal and output signal from the contour line width increasing circuit for producing an output signal when a contour line represented by the third contour signal is out of phase with a contour line represented by the output signal from the contour line width increasing circuit. As a result, moving body except for undesired small movement can be satisfactorily extracted.

Moving body recognition circuit using luminance signal and moving body

In a video signal processing apparatus, a contour signal of a moving object is separated from static background video image signals. The video signal photographed by a television camera is converted into a binary contour signal. One converted signal obtained at a certain time and another converted signal obtained at another time are processed to extract a contour signal of the moving object. The extracted contour signal of the moving object is supplied to a circuit which controls panning and/or tilting of the television camera.

Video signal processing apparatus for separating an image of a moving

A video signal which is provided up by a conventional video camera is converted into a digital signal, and a necessary part of the digital signal is selected, is memorized and is displayed, and furthermore, two video images are picked up by two video cameras are connected in the shape of video signal side by side, and if necessary, disposition of one or both of the two video images are reversed in the horizontal direction.

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Sagamihara, Japan

Toshihisa Kuroda