Dynamic warping of seismic images
نویسندگان
چکیده
The problem of estimating relative time (or depth) shifts between two seismic images is ubiquitous in seismic data processing. This problem is especially difficult where shifts are large and vary rapidly with time and space, and where images are contaminated with noise. I propose a solution to this problem that is a simple extension of the classic dynamic time warping algorithm for speech recognition. This new dynamic image warping method for estimating shifts is more accurate than methods based on crosscorrelation of windowed images where shifts vary significantly within the windows.
منابع مشابه
Automatic registration of PP and PS images using dynamic image warping
The registration of PP and PS images is a process of correlating corresponding seismic reflections in the two images. We use dynamic image warping to automatically estimate a smooth field of vertical shifts. In warping the PS-image with this shift field, we move reflections in the PS-image to match these in the PP-image. The shift field can also be used to compute the Vp/Vs ratio. Examples for ...
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