1) Spatial Frequency Activity(SFA)
空间频率活动性
2) spatial activity
空间活动性
1.
Therefore, a modified TM5 algorithm is proposed in this paper, which includes fast computation of spatial activity of macroblocks using DCT coefficients and a new scheme to adjust the fullness of virtual buffer.
本文针对全I帧编码下的TM5码率控制策略,提出了TM5码率控制策略的改进方案,这包括利用宏块的DCT系数来实现宏块空间活动性的快速计算,以及使用新的缓冲器充溢度调整方法。
3) spatial frequency characteristics
空间频率特性
1.
To achieve image compression with an optical wavelet transform method,we investigated the effects methods of image realization and image capture in an optical 4f system on the spatial frequency characteristics,and studied the characteristics of image energy concentration in the frequency domain of optical 4f system.
为将光学小波变换应用于图像压缩,分析光学4f系统中图像实现方式和图像采集对图像空间频率特性的影响,研究图像频域能量集中特性及其在光学4f系统中的表现,提出光学4f系统中图像空间频率特性的相关计算方法。
4) spatial frequency
空间频率
1.
Error-regulating method for magnetorheological finished aspherics focused on spatial frequency;
基于空间频率评价磁流变抛光非球面中频误差
2.
Influence of spatial frequency calibration on OTF test precision;
光学传递函数测试及空间频率标定方法
3.
Qualitative Investigation to Diffraction efficiency Versus Spatial Frequency of Hologram Grating;
全息光栅衍射效率与空间频率的定性研究
5) Space frequency
空间频率
1.
Results We find that for normal adult,the latencies evoked by square-wave checkerboard at periphery of four direction are getting longer and longer by increasing the space frequency,for the amplitud.
结果正常人的周边VEP在这4个方向上的N75、P100的潜伏期均随空间频率的增大而增大;N75-P100的峰值却有一个最适的空间频率,即N75-P100峰值只在这个最适空间频率下最大;另外周边区VEPN75、P100的潜伏期均较中央区VEPN75、P100的潜伏期明显延长,周边区VEPN57-P100的峰值均较中央区VEPN75-P100的峰值低。
2.
Taking the ratio space frequency error and the mean gradient as criterions,experimental results demonstrate that the algorithm is very effective and is able to fuse multi-source images.
该算法对多源图像进行提升小波分解,并针对分解后的低频和高频分量各自的特点,选用不同的规则进行融合,即低频近似系数采用基于邻域空间频率加一致性检验,高频细节系数采用基于像素点的绝对值取最大,最后进行提升小波逆变换得到融合图像。
3.
Methods 89 children with amblyopia(139 eyes) received wearing spectacles,traditional patching,space frequency stimulation therapy.
方法对89例(139眼)弱视患儿进行戴镜、遮盖或压抑治疗、弱视训练及自律空间频率视觉刺激训练等综合治疗,观察其治疗效果及其相关因素。
6) frequency space
频率空间
补充资料：慢性活动性病毒性肝炎
慢性活动性病毒性肝炎
病名。病毒性肝 炎类型之一。详见该条 。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条