Using an incoherent optical correlator and a shift encoding method, the processing of gray sclae image matching based on similitude measurement was realized.

利用非相干光相关操作处理和空间移位编码方法，实现了基于相似性度量的灰阶图像匹配处理。

youdao

The practice proves: all color LED display with bit plane encoding technology results in good gray scale with stable image without flutter, and the circuit is easy and flexible.

实践表明：采用这种位平面技术制成的LED全彩屏，灰度层次好，图像稳定不闪烁，电路实现简单而灵活。

youdao

Encoding system of absolute encoder generally USES natural binary code, Gray code, Gray-excess-code and so on.

绝对式编码器编码码制通常采用自然二进制码、格雷码、格雷余码等。

youdao