Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Method for Eliminating Stripe Noise in Infrared Image

An infrared image and noise elimination technology, applied in the field of image denoising, can solve problems such as large amount of calculation and inability to completely eliminate stripe noise, and achieve the effect of effective number of iterations, easy promotion and use, and effective settings

Inactive Publication Date: 2019-09-10
XIAN UNIV OF SCI & TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is computationally intensive and cannot completely eliminate the streak noise

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
  • A Method for Eliminating Stripe Noise in Infrared Image
  • A Method for Eliminating Stripe Noise in Infrared Image
  • A Method for Eliminating Stripe Noise in Infrared Image

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Such as figure 1 with figure 2 Shown, the present invention comprises a kind of infrared image stripe noise elimination method, comprises the following steps:

[0030] Step 1. Input the original infrared image: input an original infrared image Y(i,j) with streak noise, the original infrared image Y(i,j) has M×N pixels, where i=1,2, ..., M and j = 1, 2, ..., N;

[0031] It should be noted that an infrared image with M×N pixels indicates that the image contains M rows, and each row has N pixels. In this embodiment, an infrared image with 288×384 pixels is collected by the image acquisition module 1 and transmitted to the image processing Process in module 2. In actual use, image acquisition module 1 includes an infrared focal plane detector, and image processing module 2 is a computer, a high-speed microcontroller or a field programmable gate array. The infrared focal plane array of the infrared focal plane detector usually adopts Column output mode, that is, a readou...

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

No PUM Login to View More

Abstract

The invention discloses a method for eliminating strip noise in infrared images, which includes the following steps: 1. Input the original infrared image; 2. Set the number of iterations K and the iteration number k and initialize iteratively; 3. Calculate the k-th corrected infrared image X k (i, j); 4. Calculate the model of the gradient of the infrared image after the kth correction 5. Update the correction parameter G k (j) and O k (j); 6. Determine whether k+1<K is true; 7. Output the final infrared image X K (i,j). The invention has novel design and simple steps. Aiming at the generation mechanism of strip noise in infrared images, the correction parameters are estimated by minimizing the energy function of the corrected image, and linear transformation is used to correct the strip noise in the image. The strip noise can be eliminated using only the infrared image itself. Noise does not require periodic calibration with a blackbody focus plane array. It can effectively eliminate strip noise in infrared images without blurring image details. This method has a small amount of calculation, good real-time performance, and is easy to promote and use.

Description

technical field [0001] The invention belongs to the technical field of image denoising, and in particular relates to a method for eliminating streak noise in an infrared image. Background technique [0002] Infrared imaging systems can capture infrared information that cannot be seen by the human eye, and have important application values ​​in the fields of industry, medicine, and military affairs. Infrared focal plane array is the mainstream technology used in the current infrared imaging system, which has the advantages of small size, low manufacturing cost and high sensitivity. Infrared focal plane arrays usually adopt a column output mode, that is, a readout circuit reads the responses of sensors located in the same column in the focal plane array. Since the readout circuits are never identical, this difference can produce noticeable streaky fixed-pattern noise in the infrared image. In order to remove striped fixed pattern noise, there are mainly two types of methods:...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/00
CPCG06T2207/10048G06T5/70
Inventor 王书朋
Owner XIAN UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com