The paper presents a variant gray scale histogram (VGH) for the purpose of detecting and locating captions in video images.
为实现视频图像中字幕的快速检测与定位，本文提出一种变异灰度直方图vgh。
The merging of 3 D seismic data can be looked as the issue of optimum in different scale space mathematically, the key is how to realize the time variant merging.
三维地震资料拼接可看作是一个不同尺度空间的数学寻优问题，其关键在于如何实现时变拼接。
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