Implement method and device for infrared image registration

Abstract

The invention discloses an implement method and device for infrared image registration. The device for the infrared image registration comprises a data transmission module, a phase correlation displacement calculation module, an overlapping region calculation module, a Harris corner detection module and a matching module. The data transmission module is connected with the phase correlation displacement calculation module, the data transmission module and the phase correlation displacement calculation module are both connected with the overlapping region calculation module, the overlapping region calculation module is connected with the Harris corner detection module, the overlapping region calculation module and the Harris corner detection module are both connected with the matching module, and the matching module is connected with the data transmission module. According to the implement method and device for the infrared image registration, a phase correlation method and a Harris corner detection method are combined, an FPGA with a Rocket IO module is sued for transmitting data in high speed, therefore, in an infrared pixel searching tracking system, image registration preprocessing can be carried out fast and accurately, the requirements of precision and instantaneity of registration can be met, and sufficient time margins can be left for follow-up algorithms.

Description

technical field [0001] The invention belongs to the technical field of infrared image registration, in particular to a method and device for realizing infrared image registration. Background technique [0002] In the infrared target search and tracking system, the target video is collected by the infrared device, and image processing is performed on the target video to find the target. Image registration technology is an important part of the system, as a preprocessing of subsequent algorithms. The image processing of this system has the following characteristics: there is only translation between images, there is no complicated situation such as rotation and magnification, the requirements for data processing and data transmission are high, and a large number of images need to be processed. [0003] The phase correlation method is widely used to deal with image registration in simple cases, and the phase correlation method is also suitable for FPGA implementation. As descr...

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Problems solved by technology

[0005] Document 1 (Almudena Lindoso , Luis Entrena . High performance FPGA-based image correlation. Journal of Real-Time Image Processing, 2007,2(4):223-233.) and Document 2 (Tang Yonghe, Hu Moufa, Zhang Lu, Lu Huanzhang. Harris algorithm hardware acceleration design. Circuit and System Journal, 2012,17(1):47-53.) uses two algorithms to achieve image registration separately in FPGA, which cannot combine the advantages of the two algorithms, and neither adopts The method of high-speed data transmission can not get better matching effect and real-time effect, and cannot meet the requirements of infrared target search and tracking system

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