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THE APPLICATION OF THE IMAGE ENHANCEMENT TECHNOLOGY TO SEISMIC DATA PROCESSING |
ZHONG Yong 1,SUN Dong 2,CHEN Lei 3 |
1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China;2.Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China; 3.Geolbgical Exploration & Development Research Institute, SichuanChangqing Driling Engineering Company, Chengdu
610051, China |
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Abstract With the continuous seismic event and good lateral resolution, the precision of seismic interpretation can be improved. Seismic image shows seismic event with textural features. According to the image textural features, the edge orientated enhancement diffusion is applied to seismic image enhancement and, as a result, the processed image texture (seismic event) has better lateral resolution. The edge orientated enhancement diffusion is based on the nonlinear diffusion, which uses edge detection and diffusion of image enhancement techniques. This method chooses diffusion tensor and eigenvalue according to the information of edge position and direction. Smoothing along the edge is in the edge region, and diffusion along the edge and in the vertical direction of the edge is in the smooth region. Theoretical analysis and numerical calculations show that the edge orientated enhancement diffusion allows noise removal and structure closure at certain scales, with the preservation of both orientation and magnitude of discontinuities. This image enhancement technique is likely to improve the accuracy of seismic interpretation by high event continuity and good lateral resolution of the event.
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Received: 21 September 2009
Published: 10 June 2010
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