Dissertation > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer applications > Information processing (information processing) > Pattern Recognition and devices > Image recognition device

Research and Application of Image Edge Information Processing Technology

Author FengYongQiang
Tutor TangShiWei
School Daqing Petroleum Institute
Course Applied Computer Technology
Keywords Edge Detection Boundary tracking Image preprocessing Adaptive Coherent slice
CLC TP391.41
Type Master's thesis
Year 2007
Downloads 470
Quotes 6
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Edge is the most basic features of the image . Edge detection has a wide range of applications in the field of image recognition, image segmentation, image enhancement , and image compression , their base , and the focus of research in the field of digital image processing . A number of methods have been proposed in the field of edge detection , but in view of the differences in the characteristics of the analyzed image , the edge detection algorithm performance a great deal of mutual heterosexual , so far no single recipe can be adapted to all images . In particular, the actual processing of the image is generally mixed with noise, and how to eliminate the noise of the pseudo- edge , and at the same time guarantee that the edge positioning accuracy of edge detection need to be addressed an important issue . Therefore , there is a need for a new edge detection method according to the design of the specific application , or on existing methods improved in order to obtain a satisfactory edge detection result . For coherent slice the polygonal fault detection system research and development topics , the system need to have a coherent slice of complex fault distribution and strong noise accurately and quickly extract the fault polygon , and save the sequence of boundary parameters , we design algorithms and programs for project requirements and get better detection results . The paper studies the classic image edge detection method , linear filtering technology and its application in image edge detection , based on the the Canny algorithm of adaptive multi -scale edge detection methods , and by theoretical analysis and simulation calculation compares the various algorithms image edge Detection advantages and disadvantages . Second, the image edge detection preprocessing algorithm , improved filtering algorithm preserve edges details . Finally, on this basis , the project needs a complex binary image boundary tracking and extraction algorithm will improve and proposed algorithm is applied to the project, designed to achieve a coherent slice tomography polygon detection system . Verified by practice : the system detects a fault polygon accurate positioning , continuous , smooth, rich edge detail , showed a single -pixel-wide border . The system detection results to obtain a good three-dimensional interpretation of oilfield seismic exploration applications , and to improve the accuracy and efficiency of the fault detection .

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