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Method and apparatus for linearly filtering two-dimensional signals
Method and apparatus for linearly filtering two-dimensional signals
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机译:对二维信号进行线性滤波的方法和装置
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摘要
A method of linearly filtering spatially two-dimensional signals. The signal to be filtered is applied to an electronic imaging system. For providing a scanning movement, the signal is deflected in the electronic imaging system and swept over at least one mask in which a desired corrective filter function is established in the form of a specific transmission characteristic. The light passed by the mask is detected by means of at least one photodetector placed behind the mask. The output signal of the photodetector is a representation of the filtered two- dimensional signal as a function of the time.
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