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| 视觉的运动信息处理机制与数学模型研究 |
| The mechanism and mathematical model of motion information processing in human visual system |
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| DOI： |
| 中文关键词: 运动检测器,数学模型,运动速度 |
| 英文关键词:motion detector,mathematical model,speed of motion |
| 基金项目: |
| 谢选萍 张冬仙 |
浙江艺术职业学院 浙江杭州310053
(谢选萍)
，浙江艺术职业学院 浙江杭州310053(张冬仙)
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| 摘要点击次数: 1804 |
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| 中文摘要: |
| 研究了视觉的运动信息处理机制 ,提出了一种新的运动检测器数学模型。检测器模型由动态检测通道和静态检测通道两个时空通道组成 ,分别检测目标运动或变化的时间频率和空间频率 ,两者之比即为目标的运动速度。模型还较好地揭示了视觉系统对运动或变化速度的各种感知阈限 ,与日常的视觉经验及视觉生理学证据良好符合 |
| 英文摘要: |
| The mechanism of motion information processing in human visual system was studied. We developed a novel mathematical model of motion detector. The model consists of two spatio temporal detecting channels, one is the static channel to detect the spatial frequency of the moving object, and the other the dynamic channel to detect the temporal frequency. The speed of the moving object is determined by the ratio of the temporal frequency and spatial frequency, i.e., the ratio of the responses of these two channels. The speed thresholds of human vision can be explained on the basis of the model, showing a satisfactory matching between the model and everyday visual experience as well as the physiological evidence. |
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