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Real-time image fusion system and method for detecting concealed weapons

A real-time image and image fusion technology, applied in image enhancement, image data processing, instruments, etc., can solve problems such as the research and development limitations of real-time image fusion processing systems, the complexity of wavelet transform fusion algorithms, and the large amount of image data.

Active Publication Date: 2012-11-14
SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The large amount of image data, the complexity of the wavelet transform fusion algorithm, and the high-speed data processing requirements make the research and development of real-time image fusion processing systems subject to greater restrictions.

Method used

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  • Real-time image fusion system and method for detecting concealed weapons
  • Real-time image fusion system and method for detecting concealed weapons
  • Real-time image fusion system and method for detecting concealed weapons

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Embodiment Construction

[0038] The present invention is described in detail below in conjunction with accompanying drawing and embodiment, according to the difference of system in security application environment, the specific technical index of embodiment is as follows:

[0039] 1. For the security inspection system, the field of view is relatively small, but the flow in and out is relatively large. In view of the above considerations, the visible and millimeter wave detectors are 256×256, and the frame rate is 12 frames per second.

[0040] 2. For environments such as squares and waiting halls, the corresponding field of view is relatively large, and the rate requirement is relatively low. The corresponding image size of each frame is 1024×1024, and the frame rate is 1 frame / second.

[0041] The fusion solution adopted by the system is as follows: figure 1 As shown, the system includes detector image acquisition and DSP+FPGA functional blocks for image fusion and data output. The hardware design i...

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Abstract

The invention discloses a real-time image fusion system for detecting concealed weapons, the task of which is to perform real-time detection on weapons concealed on human bodies in insecurity inspection occasions. A pixel-level image fusion technique is performed by utilizing visible-light images and millimeter-wave images of people in the same scene, and a fusion method based on wavelet transform is adopted. The method gives consideration to fusion performance and hardware execution speed, and can achieve the task of detecting concealed weapons fast and effectively by utilizing high-performance DSPTMS320DM642 + FPGA hardware platform.

Description

technical field [0001] The invention relates to photoelectric instrument technology, in particular to a real-time image fusion system and method for concealed weapon detection. Background technique [0002] Image fusion refers to the synthesis of two or more source image information to obtain a more accurate, comprehensive and reliable image description of the same scene, making full use of the redundant information and complementary information contained in the fused image, making the fusion The image is more in line with the visual characteristics of human or machine, so as to facilitate the further analysis of the image, the detection, recognition or tracking of the target. Image fusion has been widely used in concealed weapon detection, remote sensing images, medical diagnosis, and target information extraction. [0003] The patent is mainly aimed at security applications. The basic principle is to use visible and millimeter-wave image detectors to scan and monitor publ...

Claims

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Application Information

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IPC IPC(8): G01V8/10G06T5/50
Inventor 李建林刘素芳侯丽伟林长青俞建成张荣峰赵明刘晓雷王钢
Owner SHANGHAI INST OF TECHNICAL PHYSICS - CHINESE ACAD OF SCI
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