基于病程中红细胞测量的影象投影面积、周长和波形因数，使用形状描述符进行形状分析。
The shape analysis is carried out by shape descriptors based on projected area, perimeter and form factor, as measured by processing of images of erythrocytes.
本发明所设计的波形变换方法及其装置，省去了中间直流环节，使线路得以大大简化，显著降低了成本，同时使电压、电流谐波得以减小，并可获得较高的功率因数。
The present invention has no intermediate DC link and thus simplified circuit, low cost, less harmonic component in the voltage anc current waveform and high power factor.
本发明所设计的波形变换方法及其装置，省去了中间直流环节，使线路得以大大简化，显著降低了成本，同时使电压、电流谐波得以减小，并可获得较高的功率因数。
The present invention has no intermediate DC link and thus simplified circuit, low cost, less harmonic component in the voltage anc current waveform and high power factor.
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