Optical pattern dynamics is mainly divided into two parts: laser pattern dynamics and pattern dynamics in optical resonator with nonlinear material.

光学斑图动力学主要包括激光器斑图动力学和含有非线性介质的光学谐振腔系统的斑图动力学。

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By this filter, the shift, scale and rotation invariant optical pattern recognition was realized with a high signal noise ratio of correlation output.

用这种滤波器实现了平移、旋转、尺度三重不变光学图像识别，且有较高的信噪比。

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The serial encoding method can reduce the diameter of the code disk and simplify the optical pattern, in favour of miniaturization and high precision of the absolute encoder.

与传统绝对式光学编码器相比，码盘直径小、光学图案简单，有利于绝对式编码器实现小型化和提高精度。

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The optical pattern is spatially uniform, meaning that no positional registration of LEDs is required along its length.

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These have been specifically created for the Concept GLA: their tread pattern continues the lines of the spokes in an optical illusion that makes the wheel spokes appear longer.

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