In the field of soccer-robot vision subsystem, noise is always a big problem. Since the change of brightness will disturb the identification of robot in the game, the light status always has great influence on the competition. As a result it can affect the achievement of the game. The image of the game field photo collected by a camera was analyzed based on wavelet analysis technique in this paper. By the technique of Two-Dimensional Discrete Wavelet Transform (DWT) and the proper thresholds, more actual im...
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