该法信号读出方便，精度不低于单光束莫尔偏折术。

With this method, the readout of information is convenient, the accuracy isn't lower than that single beam Moire deflectometry.

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但是，由于视觉识别对色彩和长度等图形要素定量分辨的精度非常有限，因此，直接从图形上很难准确地解读出所表现的物理函数的精确值。

But because of the limit of distinguishing ability of?human's?eye, it is difficult to get accurate understanding of values of functions by reading from colors of the pictures directly.

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