红外微光图像融合.ppt

1、Reporter: Qian Zhentao Student ID:115104000483 Major: Optical Engineering,Infrared and Low-level-light Image Fusion,NUST School of Electronic and Optical Engineering,Everyone knows that the human eye can receive a lot of information, but from the view of the spectrum, what we see is a very narrow pa

2、rt of the full spectrum of nature (wavelength range 380nm-780nm ).Therefore, what we do is to broaden our horizons, let us see more and more clearly.,How to improve the visual,Low light level imaging technology,Infrared imaging technology,Image fusion technology,Low-level-light technology : Enhancin

3、g the light that the detector received to get clearer target image also called image enhancement technology.,Infrared technology : Using infrared detector to receive the targets infrared radiation so that we can detect the target.,What can we see in the dark or just with the light of stars ?,Nothing

4、 but noise,Not clearly,If we use infrared and low-level-light detector, we can see more ,low light level image,Infrared image,As a result , infrared imaging technology make us see the invisibleand low level light imaging technology make us see more clearly. so, naturally,we will think what will happ

5、en if we put them together?,+,= ?,Infrared image,Low-level-light image,Image fusion technology:,Image fusion is extraction favorable information in each channel whichcontains the same target, and finally integrated them into a high quality images,Fusion image,Pseudo fusion image,Steps to achieve ima

6、ge fusion,Step 1 : Pretreatment Step 2 : Registration Step 3 : Fusion,Pretreatment : unify resolution filtering digitization geometric transformation uniformization enhancement ImageRegistrationis the basis ofimagefusion.,Fusion method, Average Laplacian Pyramid FSD Pyramid Ratio Pyramid Contrast Py

7、ramid Gradient Pyramid WT (Wavelet Transform) ,Advantages of fusion,Targets can be easily detected More details Good reliability Reduce redundant,Difficulties of fusion,Noises (fusion image will create more noises) Registration is difficulties Algorithm is complicated Hardware implementation is complicated,Conclusion,Results show that through the fusion of infrared and low-light-level images, the image resolution and the probability by which the s