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- Perceptual learning of orientation discrimination: spatial frequency tuning and interocular generalization 方位辨别知觉学习的眼传递及空间频率调谐特性
- Spatial frequency tuning characteristics of cat primary visual cortex at different topological locations by optical imaging 用脑光学成像术研究不同空间拓扑位置猫初级视皮层的空间频率反应特性
- Keywords Extraclassical receptive field;Classical receptive field;Spatial frequency tuning;Orientation tuning;Dorsal lateral geniculate nucleus;Texture segmentation; 非经典感受野;经典感受野;空间频率调谐;方位调谐;外膝体;质地分割;
- It includes topics such as spatial frequency filtering, holography. 它包括空间频率滤光、全息摄影。
- Luminance masking and spatial frequency masking were considered in our scheme. 此方法考虑了人的视觉所具有的亮度屏蔽和空间频率屏蔽特性。
- The tuning circuit is improved from voltage-controlled filter (VCF) frequency tuning circuit. 这个调协电路是改善自电压控制滤波器频率调协电路。
- As a design method, frequency tuning approach (FTA) was suggested to be used first to avoid critical frequency ranges. 建议人行桥梁设计时应首先采用频率调整法,使结构自振频率尽量不落在敏感频率范围内。
- The results revealed mild lowering contrast sensitivity at high spatial frequency for our glaucoma patients. 然而特定轴度之闪光眩耀测试结果并未见明显差别。
- The results suggest: 1.Binaural inhibition may play a crucial role in direction dependent Q-value of frequency tuning curve (FTC) of TC neurons;2. 2)前级神经元对不同方位外界声源刺激具有不同强度平均脉冲发放率的特征则主要决定其最低阈值随方向变化的特性 ;
- However, if the same frequency tuning range is achieved with a larger voltage, this also results in a lower noise sensitivity. 但是,如果利用大摆幅电压达到同样的频率调谐范围,可以降低噪声灵敏度。
- The Collins formula and tensor ABCD law in spatial frequency domain provide the relation between the input spatial Fourier spectrum and the output spectrum directly. 空间频率域中的柯林斯公式和张量ABCD定律直接给出了像散光束的空间傅里叶频谱的传输规律。
- Analyzed is the dependence of the defocusing quantity on the hologram size and the spatial frequency bandwidth of the object. 分析了全息图尺寸及其记录的空间频带宽度与离焦量的关系;
- The diffraction of surface acoustic waves in Raman-Nath regime on acoustic grating with linearly chirped spatial frequency is investigated. 本文将声表面波声栅上的Raman-Nath衍射现象研究发展到其周期的空间频率为线性变化的声栅情形。
- The revolutionary Bulova's Accturon movement was inveted in 1960,witch high frequency tuning fork replacing the traditional balance wheel to improve accuracy. 1960年推出全球首个电磁式音叉机芯,以音叉震动的高频率取代摆轮,提高腕表的准确度,带领制表科技进入新境界,成为品牌的得意杰作。
- The effects of radial position and the axial length of the electrode on the temporal frequency bandwidth are similar to the spatial frequency domain. 在时间频域内测量系统相当于带通滤波器,电极的轴向长度和颗粒径向位置对频带宽度的影响与空域频率特性相似;
- Method Modulation transfer function (MTF) was used to analyze the spatial frequency transfer characteristics of CT and MRI. 调制传输函数可对线性影像系统的频率传输特性进行描述。
- A new spatial frequency analysis method based on wavelet was applied to homomorphic filtering to enhance the contrast of ICT image. 针对ICT图像对比度低、边缘模糊、细节不清晰等问题,提出采用基于小波的同态滤波算法来对图像进行增强。
- A method of super-resolution imaging is described, which utilizes cosine fringes to acquire more spatial frequency spectrum of the object. 研究了一种高分辨率成像的方法,该方法利用余弦条纹照射目标以获取目标更宽的频谱。
- The emphasis is laid on dielectric materials,frequence tuning property of DRO, optimization of phase noise,widening of DRO designs,welding,and reliability. 重点介绍了介质材料、DRO的频率调谐特性、相位噪声性能的优化、DRO的拓展设计以及焊封和可靠性。