JPH01280874A - Feature image picking up object position decision auxiliary device - Google Patents

Abstract

PURPOSE:To improve an accuracy for extracting the characteristic of a feature by providing a position approaching processing part and a feature position processing part, connecting respective parts and respective sensors to an information processing part, deciding and processing an optimum feature photographing position. CONSTITUTION:When an object person approaches to a photographing position, a traveling sensor 3 operates to grasp an approaching state by a position approaching processing part 4 in a time and space and the approaching state is stored in a memory. At the time of coming to the optimum photographing position 2, an optimum signal is generated and at that time, the state of the three dimensional space of the feature is grasped in a feature position processing part 6 by a sensor 5 for the feature. According to the information processing function of the respective parts, the information is processed, collected to a photographing position decision processing part 7 to decide the optimum photographing position and the device enters the photographing operation by receiving the information. Thereby, the feature extracting accuracy of the feature is improved.

Description

[Detailed description of the invention] TECHNICAL FIELD The present invention relates to a subject position determination assisting device for facial appearance imaging.

2. Description of the Related Art Devices that identify specific individuals by capturing images of their facial features are attracting attention. For the safety of important places such as nuclear power plants, strict control of the number of people is required and equipment has been installed. The device is usually installed in a place where the target person passes and is designed to be recognized as the person passes by.

When the object reaches the imaging position while passing, the device must automatically operate to extract facial features with high precision. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an auxiliary device for determining the position of a subject for facial image capturing, which accurately grasps and processes the image capturing position of the subject. Examples will be described below with reference to the drawings.

In accordance with the device for identifying a specific individual by imaging the facial features, a progressing sensor 3 is provided in a facial feature imaging individual identification device 1 which is appropriately placed close to the optimum photographing position 2 of the subject.

A position approach processing unit 4 is provided which grasps the approach state as the camera approaches the optimal photographing position 2 and processes information.

A facial appearance sensor 5 is provided which is appropriately arranged so as to grasp the positional information of the target person's facial appearance in three-dimensional space. Facial appearance position processing unit 6 that processes facial appearance position information in three-dimensional space
will be established.

A photographing position determination processing section 7 is provided which connects each of the above sections and each sensor in an information processing manner to determine and process an optimal facial appearance photographing position. The configuration is as described above. The progress sensor 3 may be any sensor that can recognize the position of the human body, such as an infrared reflection sensor, a human body radiation infrared sensor, or an ultrasonic sensor.

The face sensor may be any sensor such as a COD camera or a pyroelectric integrated element thermopile, as long as it can grasp the position of the face three-dimensionally.

Further, a plurality of facial appearance sensors 5 may be combined. The position approach processing section 4, facial appearance position processing section 6, and photographing position determination processing section 7 are constructed using electronic circuits such as a microcomputer. With the above configuration, when using this, when the subject approaches the photographing position, the progress sensor 3 is activated, and the position approach processing section 3 grasps the approaching state temporally and spatially. The proximity state is stored in memory. The optimum signal is generated when the optimum photographing position 2 is reached. At this time, the state of the three-dimensional space of the face is grasped by the face position processing unit 6 using the face sensor 5 . The information is processed by the information processing functions of each section and collected in the photographing position determination processing section 7, where the optimum photographing position is determined.

Upon receiving this information, the device begins imaging work. These processes can be performed automatically and manually, and the optimum imaging position is determined, improving feature extraction accuracy. This is extremely effective when continuously identifying a group of subjects. As described above, this is an effective invention that improves facial feature extraction accuracy with a simple mechanism.

[Brief explanation of the drawing]

Figure 1 is a block diagram, Figure 2 is a perspective view. Figure 3 is a perspective view 1-1 Facial imaging personal identification device 2-1 Optimal shooting position 3-1 Progress sensor 4-One position approach processing unit 5-One face sensor 6-Facial position processing unit 71-Photographing position determination processing unit

Claims (1)

[Scope of Claims] In an apparatus for identifying a specific individual by imaging the facial features, a progress sensor is provided which is appropriately placed close to the optimum photographing position of the subject. A position approach processing unit is provided which grasps the approach state and processes information as the camera approaches the optimum photographing position. A facial appearance sensor is provided which is appropriately arranged so as to grasp the positional information of the target person's facial appearance in three-dimensional space. A facial appearance position processing unit is provided that processes facial appearance position information in three-dimensional space. A photographing position determination processing section is provided which connects each of the above sections and each sensor in an information processing manner to determine and process an optimal facial appearance photographing position.