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

Method and device for fusing infrared and visible light images based on spectral wavelet transformation

A technology of infrared image and wavelet transform, which is applied in the directions of graphic image conversion, image enhancement, image data processing, etc., and can solve problems such as unfavorable practical application, unsatisfactory overall effect, low information volume, and low contrast

Active Publication Date: 2014-12-10
SHANGHAI RONGJUN TECH
View PDF4 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, NSCT also has its own shortcomings: since the direction filter used by NSCT is a non-subsampling filter bank of fan-shaped filter, the band-pass direction sub-band coefficients are obtained through this filter; thus, the calculation amount of the image fusion method based on NSCT is relatively large. Large, not conducive to practical application
In view of the above advantages of NSST, scholars have introduced NSST theory into image fusion, see the article "Technique for gray-scale visual light and infrared image fusion based on non-subsampled shearlet transform", Infrared Physics & Technology, 2014, 63:110 -118; This method fuses the low-frequency sub-band coefficients and high-frequency sub-band coefficients obtained by NSST decomposition respectively using the fusion rules of regional energy mean and local direction contrast, and the obtained fusion image is clearer than the fusion image obtained based on NSCT The brightness and spatial activity have improved, but the amount of information and contrast are still relatively low, and the overall effect is still unsatisfactory

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
  • Method and device for fusing infrared and visible light images based on spectral wavelet transformation
  • Method and device for fusing infrared and visible light images based on spectral wavelet transformation
  • Method and device for fusing infrared and visible light images based on spectral wavelet transformation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0091] The present invention will be described in detail below in combination with specific embodiments.

[0092] The present invention provides a fusion method of infrared and visible light images based on spectral wavelet transform, which performs spectral wavelet decomposition on infrared images and visible light images according to the four-layer decomposition scale to obtain low-frequency sub-band coefficients and high-frequency sub-band coefficients. The obtained low-frequency sub-band coefficients are fused with high-frequency sub-band coefficients on different decomposition scales, and spectrogram wavelet inverse transform is performed on the fused low-frequency sub-band coefficients and high-frequency sub-band coefficients to obtain a fused image.

[0093] An embodiment of the present invention provides an infrared and visible light image fusion method based on spectral wavelet transform, such as figure 1 As shown, it is realized by the following steps:

[0094] Ste...

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 and a device for fusing infrared and visible light images based on spectral wavelet transformation. The method comprises the steps of performing spectral wavelet decomposition on an infrared image and a visible light image according to four decomposition scales to obtain a low-frequency sub-band coefficient and high-frequency sub-band coefficients, fusing the obtained low-frequency sub-band coefficient and the high-frequency sub-band coefficients at different decomposition scales according to a fusion rule, and performing spectral wavelet transformation on the fused low-frequency sub-band coefficient and high-frequency sub-band coefficients to obtain a fused image. The invention also discloses a device for fusing infrared and visible light images based on spectral wavelet transformation. According to the method and the device for fusing infrared and visible light images based on spectral wavelet transformation, the images of irregular images can be expressed better; a weight of image fusion is obtained by virtue of bilateral filtering so that the definition, the contrast ratio, the amount of information and the like of the fused image can be effectively improved, and consequently, a better-fused image can be obtained.

Description

technical field [0001] The invention belongs to the technical field of image fusion processing, and in particular relates to an infrared and visible light image fusion method and device thereof based on spectrogram wavelet transform. Background technique [0002] Image fusion is of great significance in image analysis and computer vision. Through image fusion technology, images of the same scene acquired from different imaging sensors can be organically combined into one image, which can effectively complement the advantages of images acquired by different imaging sensors, and form an image that can truly and clearly reflect the objective scene, so that image Further analysis, understanding, detection and identification of targets, etc. [0003] Since the 1980s, multi-sensor image fusion has aroused widespread interest and research upsurge, and it has broad application prospects in machine learning, remote sensing, computer vision, medical image processing, and military app...

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 Applications(China)
IPC IPC(8): G06T5/50G06T3/40
Inventor 秦翰林延翔韩姣姣周慧鑫牟媛李佳马琳曾庆杰金纯吕恩龙刘上乾
Owner SHANGHAI RONGJUN 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