For that reason, the paper presented a new method of automatic first breaks pick-up based on the technique of image edge detection.
为此，本文提出了一种新的基于图像边缘检测技术的初至波自动拾取方法。
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Now he chats with his plain clothes rebel comrades next to a gun-mounted pick-up truck, hoisting a Belgian-made FN light automatic rifle that's half his height.
This paper not only improved this algorithm but also implemented semi-automatic tracking grid-vectorization and central line pick-up using this algorithm.