1、Good morning,everybody,my name is xxxx ,today I’m going to talk about my paper,my paper’s topic Automatic image stitching technology based on SIFT algorithm research.
2 、I will introduce my paper from three aspects.they are what,why and how,Firstly what What is image stitching,then why Why do I study image stitching,last how The research methods of image stitching. 3、Let's see what is image stitching Image stitching technology is the number of pieces of overlap image compose a large seamless high-resolution(高分辨率) images of technology. Attention,the image which may be different time, different Angle of view(视角) or different sensors(传感器) to obtain.Explain alone sensors You can understand for the camera,next,I explain the keywords of This sentence,overlap We deal with the image must be Share a common area;for example(看图像)，The two images,Underlined that they overlap,If there is no overlap, computer will occur stitching error.Seamless and high-resolution we get Stitching images,it is clearly and no Stitching line,for example(看图像)，In this image, we can't see any stitching marks.We know the image stitching,
4、next，Let me talk about the meaning of image stitching,Image stitching technology is widely used in many field.
In the field of remote sensing(遥感)，the digital image stitching technology deals with remote sensing images that Satellite or plane
collected.it Joined together into a completely and clearly of remote sensing images.Thus,Convenient relevant staff for further analysis of the remote sensing images;
In the field of medicine,a complete brain cells panoramic image (脑细胞全景图)can be beneficial to the doctor analysis with the lesion site of patient spread , so as to make better treatment scheme;
In addition,in the field of statistics,image stitching technology is applied in the agricultural cultivated land area and food crops statistics. Underwater detection(水底探测) and virtual tourism（虚拟旅游） and so on.one picture is worth a thousand words,let’s see()The specific application of image stitching.The five images is aerial graph of the Palace Museum,Obviously,They are the part of the Palace Museum,Put them together, make up the whole panorama of Palace Museum. 6、When we understand the meaning of image stitching ,let me take about How to complete the image stitching Usually,Image stitching includes：image acquisition(图像获取)、image preprocessing（图像预处理）、image matching（图像配准）, image fusion（图像融合）。 The image matching and fusion is the key to the whole process.My design is as follows：fisrtly.... ,next...next...1 2 3is belong to image matching,linear.....is belong to image fusion.Next, I explain in detail the important method.firstly,Why choose sift algorithm.
7\\ Let's look at this picture.We guess whether they belong to the same image.In fact, they belong to the same image just photograph Angle different.In order to deal with in the process of image matching caused by the location of the image changes of error.We chose to sift. 8\\SIFT algorithm is also called Scale Invariant Feature Transform (尺度不变
特征转换)method, is a kind of local feature extraction method.Using sift
algorithm can effectively resolve the error that Due to the image position changes.its principle is as follows:
9\\Image matching is completed, the next is the image fusion,in image fusion I chose weighted average algorithm,why?because,this algorithm less calculation and the fusion effect is good.Its principle is as follows: Where i is the line of pixels of the image sequence (I = 1, 2, 3... I), j is the column of pixels of the image sequence (j = 1, 2, 3... j). ω1 and ω2 is weighted coefficient. If ω1=,the fusion of image1 and image2 is weighted average fusion.
11\\My report finished,Thanks for your listening ! Any question!