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Real-time infrared target detection system and method based on FPGA

A real-time detection technology for infrared targets, which is applied to TV system components, color TV components, details related to image processing hardware, etc., can solve the problems of DSP and FPGA performance waste and low efficiency of infrared target detection, and achieve Effects of reducing delay time, increasing image processing speed, and improving computing efficiency

Pending Publication Date: 2019-01-11
成都森和电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the above problems, and the present invention has been designed, aiming at the phenomenon that DSP and FPGA performance are greatly wasted when DSP+FPGA is combined to process infrared target real-time detection in the existing design, and DSP and FPGA transmission and DSP sequence The problem of low infrared target detection efficiency caused by the processing method; the use of DSP chips is reduced, and the functions of the original DSP are realized in the FPGA chip. At the same time, the parallel processing characteristics of the FPGA are used to improve the processing efficiency.

Method used

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Embodiment 1

[0057] Such as figure 1 As shown, a real-time detection system for infrared targets based on FPGA of the present invention includes:

[0058] An infrared camera device, which is used to collect infrared images and process the infrared images into image data that can be transmitted;

[0059] FPGA module, the FPGA module communicates with the infrared camera device, and the FPGA module receives image data and extracts information on the position and shape of the infrared target in parallel processing;

[0060] Two-dimensional servo pan / tilt, the two-dimensional servo pan / tilt is connected to the FPGA module in communication, the two-dimensional servo pan / tilt and the FPGA module cooperate to perform closed-loop feedback control on the information of the infrared target position and shape; namely: the two-dimensional servo pan / tilt and the FPGA module Cooperate to identify the position and shape of the infrared target and control the infrared camera device to follow the infrared target ...

Embodiment 2

[0065] An infrared detection method of an infrared target real-time detection system based on FPGA includes the following steps:

[0066] Edge detection steps: under the beat of the image clock, the image is buffered into the FIFO, and the image gray values ​​of 3 lines are stored in the FPGA through 3 FIFO buffers, and then the data of the FIFO are read out and registered with 3 registers Data, get 9 data (f11-f33), and then calculate the edge according to the following formula to get the gradient image;

[0067] f”(x,y)=|f(x+1,y)+f(x-1,y)-2f(x,y)|+|f(x,y+1)+f(x,y) -1)-2f(x,y)|

[0068] Among them, f(x, y) is the gray value of the image at the (x, y) coordinates;

[0069] f” (x, y) is the edge detection value at (x, y) coordinates.

[0070] The advantage of the above steps is that the design idea of ​​this module makes full use of the parallel design and pipeline processing ideas of FPGA. Under the beat of the image clock, the image is buffered into the FIFO step by step. When the im...

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Abstract

The invention relates to a real-time infrared target detection system and method based on FPGA, belonging to the infrared real-time monitoring field, the system comprising an infrared camera device, atwo-dimensional servo head, a display and an upper computer. The infrared camera device is used for collecting infrared images and processing the infrared images into image data which can be transmitted. A FPGA module is communicatively connected with the infrared camera device. The FPGA module receives image data and extracts infrared target position and shape information in a parallel processing mode; the upper computer receives and stores the information of infrared target position and shape in real time. The invention solves the problems in the prior art that the performance of DSP and FPGA is greatly wasted when DSP and FPGA are combined to deal with real-time infrared target detection, and the problem of low efficiency of infrared target detection is caused by DSP and FPGA transmission and DSP sequential processing. The invention reduces the use of DSP chip, realizes the function of original DSP in FPGA chip, and improves the efficiency of operation by using the characteristic of parallel processing in FPGA.

Description

Technical field [0001] The invention relates to an infrared target real-time detection system and detection method based on FPGA, and belongs to the field of infrared real-time detection. Background technique [0002] Infrared target detection system refers to the process of processing and analyzing the image sequence captured by the infrared camera, and using the infrared camera to collect image information in real time to track the target stably. Once the target is determined, the position and speed of the target can be obtained by calculation , Acceleration and other motion parameters to obtain the characteristic parameters of the target. [0003] Existing infrared target detection systems generally use a combination of DSP+FPGA. FPGA is responsible for image preprocessing and communication, and DSP is responsible for target detection operations. This technical solution has disadvantages such as high power consumption and high system cost; in addition, In the infrared target de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/73G06T7/60G06T1/20G06T1/60H04N5/33
CPCH04N5/33G06T1/20G06T1/60G06T7/60G06T7/73G06T2207/10048G06T2207/10016G06T2200/28
Inventor 罗冠泰张述云杜仕方
Owner 成都森和电子科技有限公司
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