Adaptive mapping algorithm and device for keeping infrared image target and background not suppressed
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
An infrared image, adaptive technology, applied in image enhancement, image analysis, image data processing and other directions, can solve the problem of overall image flicker, difficulty, noise amplification in local areas, etc., to suppress flicker, smooth edge areas, and suppress noise. produced effect
Pending Publication Date: 2021-06-04
THE THIRD RES INST OF CHINA ELECTRONICS TECH GRP CORP +1
View PDF6 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the algorithm itself also has some problems, such as flickering of the image as a whole, noise amplification in local areas, etc.
Most of the enhancement algorithms based on linear transformation are simple in calculation and high in real-time performance, but it is difficult to guarantee the obvious contrast between the image background and the target
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0052] Adaptive Mapping Algorithm to Keep Infrared Image Target and Background Unsuppressed
[0053] Such as figure 1 As shown, the adaptive mapping algorithm to keep the infrared image target and background unsuppressed includes the following steps:
[0054] Step 1: Preprocessing the infrared original image data to obtain the first infrared image.
[0055] Step 2: Carry out block processing on the first infrared image, divide it into multiple image areas, and count the histogram information of each image area; calculate the cumulative histogram minimum gray value Pix of each image area min and the maximum gray value Pix max .
[0056] The first infrared image is divided into 4-8 image areas, and the area of each image area is the same. In this embodiment, the first infrared image is divided into four image areas.
[0057] Calculate the cumulative histogram minimum gray value Pix of each image area by the following method min and the maximum gray value Pix max .
[0...
Embodiment 2
[0077] A device for keeping infrared image targets and backgrounds from being suppressed
[0078] include:
[0079] An image preprocessing unit, configured to preprocess infrared raw image data to obtain a first infrared image;
[0080] an image processing unit for:
[0081] The first infrared image is divided into blocks, divided into multiple image areas, and the histogram information of each image area is counted; the cumulative histogram minimum gray value Pix of each image area is calculated min and the maximum gray value Pix max ;
[0082] Based on the minimum gray value Pix min and the maximum gray value Pix max , modify the cumulative histogram of each image area;
[0083] Calculate the minimum gray value out of the extreme value range of each image area map min and the maximum gray value out max ; Based on the minimum gray value out min and the maximum gray value out max , establishing the mapping relationship between the output and input of each image area ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention relates to an adaptive mapping algorithm and device for keeping an infrared image target and background not suppressed, and the method comprises the steps of carrying out the preprocessing of original infrared image data, and obtaining a first infrared image; performing block processing on the first infrared image, segmenting the first infrared image into a plurality of image areas, and performing statistics on histogram information of each image area; calculating the minimum gray value and the maximum gray value of the accumulated histogram of each image area, and correcting the accumulated histogram of each image area; calculating a minimum gray value and a maximum gray value of an extreme value range mapped by each image region, establishing a mapping relation of output and input of each image region, and obtaining a second infrared image; and for each block image region of the second infrared image, obtaining a third infrared image through an image adjacent region edge fusion recombination method. According to the invention, the contrast between the target image background and the target can be ensured, and image area flicker and background noise can be effectively inhibited.
Description
technical field [0001] The invention relates to an adaptive mapping algorithm and a device for keeping infrared image targets and backgrounds from being suppressed. Background technique [0002] In the field of infrared image processing, after infrared image processing, it is compatible to obtain clear and clean infrared images in multiple scenarios, which has a wide range of application requirements. Due to the inherent characteristics of the infrared detector itself, when the radiation contrast of the target in the visible field is relatively extreme, how to generate a clear target, keep the image background observable, and image noise-free amplification has always been an urgent problem in the field of infrared image processing. question. In order to improve the quality of infrared image processing, algorithms such as CLAHE, AHE, AGC, and piecewise linear stretching are commonly used. These algorithms can expand the dynamic range and improve the contrast to a certain ext...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more