JPS582679A - Image processor - Google Patents

Abstract

PURPOSE:To make an image of an object to be tracked hard to be affected by an irregular noise or background while producing the same effect for an object changing slowly in the shape by retaining the memory of the image having an integrating circuit. CONSTITUTION:An input image is inputted from a TV camera 1 and converted into an electrical signal. In the TV camera 1, the position of the inputting view thereof is controlled with a camera driver 2. Output signals from the TV camera 1 are inputted into an adder 5 to add to a signal from a multiplier 7 and inputted into an image memory 6. Signals from the image memory 6 multiplied K times with the multiplier 7. Here, an integrating circuit is so aranged in the properting to retain the integrating effect thereof for a fixed period. This makes an image hard to be affected by irregular noise or background while producing the same effect for an object changing slowly in the shape.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an image processing device, and more particularly to an image O tracking device.

Conventionally, as an image tracking device, the position of the image input area is determined by the brightness center of gravity position of the input image, but the position of the image input area is determined by north wall processing of Ol or two consecutive input images, for example, a correlation sensitive layer. There are things to do. .

However, these conventional image tracking devices have only a small memory for the image they are currently tracking.

There was a drawback that the tracking ability of %<0 would be extremely reduced if irregular noise with a lot of noise added to the input image* or an image other than the image currently being tracked (such as the background) appeared. .

This invention has taken into account the above-mentioned drawbacks, and has a property that is not easily affected by irregular noise or green leaves, and is also effective against objects whose shape is slowly or slowly deforming. □There is a company that provides image tracking devices that can be used.

To explain the configuration of the present invention, the present invention includes an image input circuit that can control the position of an input area by external human power;
An integrating circuit that integrates the image signal output from the ζ0Iii image input circuit, and an image signal output from the Kenki III input circuit and the image signal output from the integration circuit are compared to control the position of the input area. and a comparator circuit that outputs a voice signal.

The present invention will be explained below by way of examples with reference to the drawings.

FIG. 1 is a diagram showing one embodiment of the present invention.

In FIG. 1, an input image is input to a television camera l and converted into an electrical signal. (9) The position of the input field of view of this television camera 1 is controlled by a camera driving device 2. The signal output from the television camera 1 is input to the Signal Corporation correlator 3, and a two-dimensional cross-correlation with the output signal from the image memory 6 is calculated. This correlator 36 output signal is input to the maximum value detection circuit 4, and the position at which the maximum value is obtained is output as a signal. A device signal constituted by the maximum value detection circuit 4 is input to the camera driving device 2. The direction of the television camera 10 is controlled so that the image at the position indicated by the position signal input by two camera drive devices is input.

The output signal from the television camera 1 is also input to the adder 5 and added to the O signal from the multiplier 7, and the O signal from the 0 image signal 496 input to the image memory 6 is added to the multiplier 7
) is multiplied by K. However, K is a constant that determines the zero time constant of the integral effect.

In this embodiment, one image input circuit is constituted by a television camera l and a camera drive device 2, one integral path is constituted by an addition SS, a multiplier 7, and an image memo 96, and a comparison circuit is constituted by a correlator 3 and a maximum value The detection circuit 4 consists of nine detection circuits.

? -0@t), if the characteristics of the 1-integrator circuit are configured so that it has 0 integral effect for a certain fixed period from the present to the past, then K. Therefore, for an object whose shape changes slowly, It is also possible to fully exhibit the trace effect.

As explained above, according to the present invention, the memory of the image that is the target of the wharf is stored in the integral circuit.
Therefore, it is possible to provide an image tracking device that is not affected by irregular sounds or backgrounds, and can sufficiently exhibit its effect even for objects whose shape changes slowly.

[Brief explanation of the drawing]

IF5 diagram is a block circuit diagram of an embodiment of the present invention. &Drawing Kl! The symbols used indicate the following, respectively: 1"-"-TV camera, 2--Television camera drive device, 3--Correlator, 4--Maximum value detection circuit, 5 +-+ ::1 ...--Image input circuit, 5---Comparison circuit, 10.
・・・−・Product: Branch circuit・′
: - Input circuit V comparison circuit Integral circuit circuit diagram

Claims (1)

[Claims] an image input circuit that can control the position of the input area by external human power; an integration circuit that integrates the image signal output from the input circuit; and an image signal output from the image input circuit and the integration circuit. An image processing device that includes a comparison circuit that compares the output image signal with the output image signal and outputs a signal for controlling the position of the input area O.