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为了突出地质体的轮廓并保证横向分辨率,在进行滤波的同时必须保证地质体的边缘。为此,引入了各向异性扩散滤波技术。该技术的核心思想是沿着边缘的方向扩散滤波,而垂直边缘的方向则不扩散,这样就保证了滤波具有方向性。为了增强该技术的实用性,对各向异性扩散模型的参数进行了讨论,在充分考虑地震分辨率的情况下,给出扩散系数公式,推导分析了扩散门限参数的选取原则。依据本文提出的公式及原则,对XX区的潮道、YY区的砂体进行了突出显示,良好的应用效果证实了本文提出的参数选取原则是合理的。
In order to highlight the outline of the geological body and ensure the horizontal resolution, the edge of the geological body must be ensured while filtering. To this end, the introduction of anisotropic diffusion filter technology. The core idea of this technique is to spread the filtering along the edge direction, while the vertical edge direction is not diffused, thus ensuring the filter has the directionality. In order to enhance the practicability of the technique, the parameters of the anisotropic diffusion model are discussed. The diffusion coefficient formula is given when the seismic resolution is fully considered. The selection principle of the diffusion threshold parameter is deduced and analyzed. Based on the formulas and principles proposed in this paper, the sand bodies in tidal channel and YY area in XX area are highlighted, and good application results confirm that the principle of parameter selection proposed in this paper is reasonable.