The main theme of this paper is that the early process of visual cognition may be source from the global spatial frequency of object. “初期特征分析”理论认为视觉认知过程由局部性质开始到大范围性质,而“初期整体知觉”理论认为由大范围性质到局部性质。
Quality of moving images on mobile LCD is estimated by a visual perception experiment to investigate the influence of frame frequency, response time and video content. 应用视觉感知实验的方法对移动显示(手机)用LCD的运动图像质量进行了主观评价,研究了帧频、响应时间和视频图像内容对运动图像质量的影响。
The visual neural mechanism and frequency characteristic of the temporal high pass filter nonuniformity correction technique for infrared focal plane array were studied. 分析基于时域高通滤波的红外焦平面自适应非均匀校正算法的视觉神经机制以及滤波器的幅频特性。
Highest Visual Frequency of Television in China is not 6 MHz, but 7.37 MHz PAL制式下电视图像的最高频率不是6MHz,而是7.37MHz
Characteristics of critical twinkle visual frequency in depression 抑郁症患者的临界闪烁频率特性
Visual computation of radar cross section in low frequency region by the method of current marching technique 电流步进法实现低频区RCS可视化计算
Results The spectral characteristics of the given time series describe the hidden periodicity in a visual way. FREQUENCY CHANGE POINTS ESTIMATION IN HIDDEN PERIODICITY MODEL 结果不同科别门诊量时序对应的频率特征得以直观表达,特征峰位置各有特点。潜周期模型中频率变点的估计
The following parameters were measured: driving performance on the testing ground, visual and auditory reaction time, critical flicker frequency ( CFF), subjective scores of Stanford sleepiness scale ( SSS) and rating of perceived exertion ( RPE). 测定指标包括考核场汽车驾驶能力、视听反应能力和临界闪光融合频率(CFF)、斯坦福嗜睡量表和自认疲劳分级量表评分。
Visual simulation for AC AC frequency variable synchronous motor drive systems 交交变频气隙磁链定向控制同步电机调速系统的可视仿真
Variation of critical twinkle visual frequency between normal people and schizophrenics 正常人与精神分裂症患者的临界闪烁视频率的差异
Visual Simulation of Orthogonal Frequency Division Multiplexing Communication System 正交频分复用系统的可视化仿真研究
Different orientation effect of visual evoked potential due to different temporal stimulating frequency 不同时间频率光栅刺激引起的视觉诱发电位(VEP)方位效应的差异
There are high differences of the critical twinkle visual frequency of different color light in the normal persons, too. 正常人对不同色光的临界闪烁视频率也有高度显著性差异。
According to the difference to critical twinkle visual frequency of different chromatic light in normal, in this paper, the characteristics to critical twinkle visual frequency of different chromatic light I in unspecific schizophrenics were initially probed. 本文根据正常人对不同色光的临界闪烁视频率的差异,初步探索未定型精神分裂症患者对不同色光的临界闪烁视频率的特性。
Study on the Visual Cortical Response to Stimulus Frequency in Deaf with Event Related fMRI 聋人枕叶视皮层对频率刺激反应规律的事件相关fMRI研究
Based on Visual Basic program, a frequency modulation testing scheme under vibration condition is designed. 基于VISUALBASIC编程,设计了机载电子产品在振动条件下的频率调制测试方案。
Detection and analysis of characteristics of critical twinkle visual frequency for different color of light in manic patients 躁狂症患者对不同色光的临界闪烁视频率特性
Conclusion The effect of infrasound on visual functions are related to its frequency and intensity. 结论次声对小鼠视觉电生理功能的影响与次声的强度和频率有关。
The twinkle frequency of red, yellow and green twinkle tubes was controlled directly by the TS-1631 type low frequency signal generator. The critical twinkle visual frequency was tested in common people and three different types of patients with schizophrenia. 用TS-1631型低频信号发生器来直接控制红、黄、绿3色闪烁管闪烁频率,测试正常人和3类不同类型精神分裂症患者的临界闪烁视频率。
Detection of Visual Speech Signal and Fundamental Frequency Phonetic Analysis 可视式语音信号的分析及基音检测
A Brief Discussion on the Massive Information Storage in the Application of Visual Frequency Current 利用SAN技术实现视频流应用中的海量信息存储
At the same time, combined with the human visual model, our algorithm guarantees the visual impression and protects the low frequency part of image efficiently. 同时算法结合了人眼视觉模型,有效地保护了图像的低频部分和强边缘部分,从而确保了加密图像的视觉效果。
The undecimated contourlet transform conforms well to the human visual system and its frequency plane partition resembles cortex transform. 非抽样轮廓波变换具有与视皮层变换相似的频带划分,符合人眼视觉特性。
Study on the characteristics of critical twinkle visual frequency in the alcoholic patients 酒精中毒患者的临界闪烁视频率特性的研究
AIM: To compare the reflection feature and difference of critical twinkle visual frequency for different color of light in normal persons and patients with different type of schizophrenics. 目的:比较正常人与不同类型精神分裂症患者对不同色光临界闪烁视频率的反应特征与差异。
AIM: To determine the temporal acuity with JGW-B1 psychological experimental desk flicker apparatus, and improve the horary visual acuity of subjects with critical flicker frequency ( CFF) training method. 目的:观察采用JGW-B1型心理实验台光点闪烁仪部分测定时间视敏度,并以闪光临界融合频率的训练方法对健康志愿者空间和时间视敏度的影响。
In HSV space which accord with human visual system, the low frequency coefficient and high frequency coefficient of the luminance component which are decomposed by wavelet are processed respectively according to their different properties. 在符合人眼视觉特性的HSV空间中,对亮度分量进行小波分解后,根据低频系数和高频系数的不同特性,对它们分别进行处理。
The time-frequency distribution of the surface myoelectric signal was computed by means of STF^ Wigner-Ville distribution and Choi-Williams distribution. They are used for the visual inspection of the evolution of the frequency content of the signal. 用短时傅里叶变换、Wigner-Ville分布及Choi-Williams分布计算了表面肌电信号的时频分布,用于信号频率内容随时间演化的可视化观察。
It is well known that human visual system has very limited ability on identifying the detail of certain objects, e.g. repeated visual pattern or high frequency texture due to masking effects. 众所周知,人眼视觉系统对于特定目标的某些细节部分具有非常有限的识别能力,比如重复的视觉类型和图像中的高频信息。