以恒定速度移动的物体的虚幻加速度和减速来自自然运动检测算法
Emmeline L Handojo1,2, Szonya Durant3, Johannes M Zanker3
1Faculty of Life Sciences and Medicine, King's College London, London, UK.
Proceedings. Biological sciences
|April 1, 2025
概括
感知运动振荡的脚步幻觉可以通过计算模型重现. 这表明时空相关性是跨物种运动感知的基本感官计算.
科学领域:
- 神经科学是一个神经科学.
- 计算视觉 计算机视觉 计算机视觉
- 感知心理学 感知心理学
背景情况:
- 脚步错觉涉及物体以恒定速度移动在条纹背景上的速度的感知振荡.
- 了解这种幻觉的神经基础可以阐明运动感知中的基本计算.
研究的目的:
- 为了模拟脚步的幻觉,使用一种生物启发的计算模型.
- 将幻觉的不同配置映射到模型输出.
- 推断多尺度时空通道在视觉感知中的作用.
主要方法:
- 开发了一种具有动态读数的二维运动探测器 (2DMD) 模型.
- 模拟的感知速度振荡.
- 量化的连续和振荡响应组件.
主要成果:
- 2DMD模型成功地复制了步骤幻觉的振荡运动反应.
- 模型的响应幅度与经验测量的幻觉强度相关.
- 相对应检测器的模式和对比度依赖性足以产生幻觉.
结论:
- 时空相关性似乎是运动检测的基本感官计算.
- 互补的过和全球聚合机制可能是复杂的视觉现象的基础,比如脚步幻觉.
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