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A spatial domain image registration and fusion method based on focus position compensation

A technology of image registration and fusion method, applied in the field of image processing, to achieve the effect of wide applicability, volume and weight reduction

Active Publication Date: 2020-08-11
KUNMING INST OF PHYSICS
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problem of spatial image registration in the parallel optical path infrared and low-illuminance CMOS fusion handheld system, the present invention proposes a spatial image registration and fusion method based on focus position compensation, which is a spatial registration fusion method of infrared and low-illuminance CMOS A quasi-solution, aiming at the fusion of infrared and low-illuminance CMOS, solves the problem of image registration in airspace, so that the registration accuracy of the product at different distances can reach within one pixel, and is suitable for application in miniaturized handheld system fusion solutions

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  • A spatial domain image registration and fusion method based on focus position compensation
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  • A spatial domain image registration and fusion method based on focus position compensation

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Embodiment 1

[0028] The process flow of the spatial domain image registration and fusion method based on focus position compensation in the present invention is as follows figure 1 As shown, the infrared video and CMOS video are firstly collected by AD, and then the collected video image is preprocessed, usually image enhancement processing, to highlight the image details. Afterwards, the time-domain images of the preprocessed video information flow are registered, and then the infrared video and CMOS video after the time-domain registration are fused for the first time.

[0029] Then, the CMOS image in the first fused video image is translated and zoomed. The method is to first select the 1 / 4 field of view area in the center of the first fused video image as a fixed observation target, and then, according to the user observation distance Transform the distance to select the observation target area to make the image clear, and collect the position value Ln and temperature value Tn at the c...

Embodiment 2

[0036] This embodiment is described in conjunction with the optical system and the video source. The first step is to determine that the distance between the centers of the windows of the infrared imaging component and the CMOS imaging component of the optical system is 70mm, and the calibrated 30-meter distance registration parameters A1=2, B1=2,100 The meter distance registration parameters A2=2, B2=1. Suppose the infrared video input image is T1, and the CMOS video input image is R1.

[0037] The second step is to carry out AD acquisition on the images T1 and R1, convert the analog signal into a digital signal, and send the digital signal to the FPGA. Assuming that the digital signal has a matrix size of 3×3, there will be digital signal grayscale information and pixel coordinate positions corresponding to the digital signal grayscale information after collection. The grayscale information of the digital signals of T1 and R1 are as follows.

[0038] T1 digital signal gray...

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Abstract

The invention belongs to the technical field of image processing, and discloses a spatial domain image registration and fusion method based on focusing position compensation. The method adopts a focusing position component and a position value and a temperature value sampling method to realize spatial image registration of an infrared and visible light parallel optical path system. Accurate, by collecting the position of the focusing lens and different temperature values, calling the registration parameters at different target distances, panning and zooming the CMOS image, and real-time image alignment between the panned and zoomed CMOS image and the infrared image Registration Fusion.

Description

technical field [0001] The invention discloses a space domain image registration and fusion method based on focus position compensation, which belongs to the technical field of image processing. Background technique [0002] In traditional image fusion systems, the fusion of infrared and visible light CCDs is an important direction. Since visible light CCDs are mainly used in daytime, with better illumination and smaller aperture design, the problem of spatial image registration can be solved by using a common window. [0003] Traditional infrared and visible light CCD fusion uses a common window method to solve the problem of spatial image registration. Infrared and low-light CMOS fusion handheld systems use parallel optical paths to work, and image misalignment will occur at different target distance points. In the traditional technology, in order to meet the low-illumination requirements of 0.001lux and 0.0001lux in the fusion of infrared and low-illuminance CMOS, the low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/225H04N5/232
CPCH04N23/54H04N23/55H04N23/60
Inventor 赵德利曾邦泽周永康胡健钏欧阳慧明李广成然王琦艺孙爱平汪陈跃张桂伟朱尤攀李泽民张皓
Owner KUNMING INST OF PHYSICS