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人类视觉中对比度适应的双眼镜特性
Mark Georgeson1, Paul Lerner2, Frederick Kingdom3
1Aston University, School of Life & Health Sciences, Birmingham, UK.
Vision research
|June 10, 2023
概括
对比度适应包括动态增强控制. 这项研究揭示了对比度适应的两阶段模型,具有单独的单眼和双眼增强控制,解释了视觉系统如何适应不同的对比度.
科学领域:
- 视觉科学 视觉科学
- 神经科学是一个神经科学.
- 感知心理学 感知心理学
背景情况:
- 对比度适应和动态增强控制已经很成熟.
- 对双筒眼视觉的理解已经进步,但对双筒眼对比度的适应仍然不太了解.
- 眼内转移 (IOT) 是一个已知的现象,但它在对比适应中的作用需要进一步研究.
研究的目的:
- 为了研究对比度适应的双眼特性.
- 开发和测试一个对比度适应模型,其中包括单眼和双眼增强控制.
- 了解适应如何影响对比度检测和歧视.
主要方法:
- 观察者适应了高对比度网格.
- 在各种测试对比度中测量了对比度检测和区别,产生了值与对比度 (TvC) 函数.
- 用一个具有单独单眼和双眼增益控制的双参数模型来分析数据.
主要成果:
- 适应的TVC功能显示了斜移到更高的对比度,在不同的眼睛组合中一致.
- 适应通过Cs因子重新调整了对比度,这可以通过一个两阶段模型来很好地解释,该模型具有连续的单眼和双眼增强控制.
- 该模型成功考虑了TvC函数形状,它们在适应下的不变性,以及对比度缩放因子.
结论:
- 对比度适应通过两阶段增强控制机制运行,涉及单眼和双眼阶段.
- 这种两阶段模型为对比度适应对视觉感知的影响提供了全面的解释.
- 来自猫V1细胞的证据支持这种两阶段模型,而不是更简单的单阶段模型.
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