The program can, where necessary, filter out objects such as flags being waved to focus specifically on other objects, for instance a person on the edge of the pitch.
如果哪里需要，程序可以过滤掉像挥动的旗子这样的物体而去特别地关注另一些物体，比如球场边上的一个人。
2
A method of calculating wavelet transformation filter coefficients for multiscale edge detection is given in this paper, and the efficiency of the method is clarified.
Elgato Systems, the maker of EyeTV, has released a demo video of the filter in action — it's not perfect, but it definitely seems to take the edge out of the annoying buzzing sound.