JPH05137045A - Target detector - Google Patents

Abstract

PURPOSE:To improve the identification accuracy to a target existing in a remote place. CONSTITUTION:A target candidate detector 2 detects the position of a target candidate based on the image data obtained from an image pickup device 1. A tracking device 3 receives the target candidate position and turns a zoom-up image pickup device 4 toward the target candidate. The device 4 zooms up and the image data are inputted to a target identifying device 5. Thus the device 5 identifies the target candidate. As a result, the target candidate is zoomed up and identified. In such a constitution, the identification accuracy of a remote target is improved and the target searching distance can be increased. Furthermore the target candidates are automatically identified in sequence. Then the target identification efficiency is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a target detecting device applied to detect a target of a product having a visual function.

[0002]

2. Description of the Related Art In a conventional target detecting device, a target detecting device 02 to which an image pickup device 01 is connected as shown in FIG.
The image pickup device 01 used to obtain an image at a single angle of view, and the target detection device 02 that input the image detected the target.

[0003]

In the conventional target detection, when the target exists at a long distance, the size of the target on the screen is small and it is difficult to accurately identify the target. Further, when a telephoto lens is used for accurate target identification, there is a problem that the search range becomes narrow unless the user swings.

The present invention is intended to solve the above problems.

[0005]

A target detecting apparatus of the present invention is a target for detecting a candidate for a target by inputting an image pickup apparatus for converting an image of the outside world into a video signal and image data output by the image pickup apparatus. A candidate detection device, a tracking device that inputs a target candidate existing position from the target candidate detection device and tracks a candidate target, and a zoom-up imaging device that is controlled by the tracking device to perform head swing and zoom-up.
It is characterized in that a target identifying device for identifying a candidate target by inputting image data output from the zoom-up imaging device is provided.

[0006]

In the above, the image pickup device photographs the outside world and converts it into image data, and the target candidate detection device which inputs this image data detects the candidate of the target object and sets the target candidate existing position on the screen as the tracking device. input.

The tracking device which has input the target candidate existing position adjusts the angle of the zoom-up image pickup device so that this position and the optical axis of the camera coincide with each other, and the zoom-up image pickup device enlarges the size so that the candidate target can be identified. Zoom up until it is displayed and output the image data.

The zoomed-up image data is input to the target identifying device, and the target identifying device identifies the target.

When there are a plurality of candidate targets identified by the target identifying apparatus, when the identification of one candidate target is completed, the re-search process is omitted, and the other candidate targets are sequentially zoomed in and identified. Repeated.

As described above, since the candidate target is zoomed up and identified, the accuracy of identifying the target object at a long distance is improved, the target detection distance can be extended, and the candidate targets are automatically identified sequentially. As a result, the efficiency of target identification can be improved.

[0011]

FIG. 1 shows an embodiment of the present invention. In the present embodiment shown in FIG. 1, an image pickup apparatus 1 for converting an image of the outside world into a video signal, a target candidate detection apparatus 2 for inputting image data from the image pickup apparatus 1 to detect a candidate for a target, and a detection apparatus 2 for the same. A tracking device 3 that inputs a target candidate existing position and tracks a candidate target, and is controlled by the tracking device 3 to match the target candidate existing position with its optical axis and zoom up the candidate target image Zoom Up
It is provided with an Up image pickup device 4 and a target identification device 5 for inputting an enlarged image from the image pickup device 4 and performing target identification.

In the above, the image pickup apparatus 1 for photographing the outside world
Thus, the image data is acquired, the target candidate detecting device 2 receives the image data, detects the candidate of the target object, and stores the position on the screen. At this point, in the case of a long distance, the size of the target is small and it is difficult to accurately identify the target. Therefore, the Zoom Up imaging device 4 obtains an enlarged image of the target candidate region as shown in FIG.

In this case, the tracking device 3 controls the Zoom Up image pickup device 4 so as to match the camera optical axis with the candidate target in consideration of the movement of the target object and the blurring of the image pickup device, and the accurate acquisition of the candidate target. And then Zoom Up.

The magnified image obtained by the Zoom Up imaging device 4 is sent to the target identifying device 5, and the target identifying device 5 uses this magnified image to perform the target identification to accurately identify the target and detect the target. Be done exactly.

When there are a plurality of candidate targets, an identification end signal is sent from the target identifying device 5 to the target candidate detecting device 2, and the tracking devices 3 and Zoom are used for other candidate targets.
Up The image pickup device 4 and the target identification device 5 are activated, and Zoom Up
The target identification is repeated, and the rediscovery process is omitted.

As described above, the accuracy of identifying a long-distance target is improved, the target detection distance can be extended, and the efficiency of target identification can be improved.

[0017]

In the target detecting device of the present invention, the target candidate detecting device detects the target candidate existing position from the image data acquired by the image capturing device, and the tracking device which has input this position detects the zoom-up image capturing device as the candidate target. In the direction, the target identifying device inputs the image data obtained by the zoom-up imaging device zooming up to identify the candidate target.
Since the candidate targets are zoomed up and identified, the accuracy of identification of long-distance targets is improved, the target detection distance can be extended, and the candidate targets are automatically identified in sequence. It is possible to improve the efficiency of.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of an image according to the above embodiment.

FIG. 3 is an explanatory diagram of a conventional device.

[Explanation of symbols]

 1 Imaging Device 2 Target Candidate Detection Device 3 Tracking Device 4 Zoom-up Imaging Device 5 Target Identification Device

Claims (1)

[Claims] 1. An image pickup device for converting an image of the outside world into a video signal, a target candidate detection device for inputting image data output by the image pickup device to detect a candidate for a target, and a target from the target candidate detection device. A tracking device that inputs a candidate existing position and tracks a candidate target, a zoom-up imaging device that performs a swing and zoom-up under the control of the tracking device, and image data that the zoom-up imaging device outputs are input. A target detecting device comprising a target identifying device for identifying a candidate target as a target.