Color constancy improves, when an object moves: high-level motion influences color perception.
Color constancy improves, when an object moves: high-level motion influences color perception.
复制标题
当物体移动时，颜色恒常性会提高：高级运动会影响颜色感知。
作者：
A. Werner
颜色恒定性是指尽管照明的光谱内容发生相当大的变化，但我们感知物体颜色几乎恒定的卓越能力。因此，它对于物体识别来说是最重要的。视觉运动会使物体识别变得更加困难，因为它限制了观看时间并增加了物体遇到照明变化的可能性。然而，颜色恒常性，就像人类一般的颜色感知一样，长期以来一直被认为是“运动盲”。相反，我在这里表明，人类的颜色恒常性受到运动的影响，并且当颜色表面移动时会改善。心理物理学实验表明，颜色恒常性特别受缓慢物体运动的影响，并且取决于运动图形的显着性。这些令人惊讶的发现无法用颜色和运动信号的低级协同处理来解释。相反，他们展示了注意力驱动的高级运动过程对皮层颜色计算的先前未知的影响。由于运动是自然视觉场景的常见方面，因此颜色和运动信号的协同集成是改善颜色识别的重要机制。新发现反对人类视觉皮层中颜色和运动处理的严格隔离，并提出了一个用于编码物体颜色的网络，其中包括专门的腹侧和背侧视觉区域。
Color constancy refers to our remarkable ability to perceive the color of objects nearly constant despite considerable changes in the spectral content of the illumination. As such it is most important for object recognition. Visual motion can make object recognition harder because it limits the viewing time and increases the likelihood that an object encounters illumination changes. However, color constancy, as human color perception in general, has long been thought to be "motion blind." Here I show that, on the contrary, human color constancy is influenced by motion and improves when a color surface moves. Psychophysical experiments revealed that color constancy is influenced specifically by slow object motion and depends on the saliency of the moving figure. These surprising findings cannot be explained by low-level co-processing of color and motion signals. Instead they demonstrate a previously unknown influence of attention-driven, high-level motion processes on cortical color computation. Since motion is a frequent aspect of natural visual scenes, the synergistic integration of color and motion signals is an important mechanism for improving color identification. The new findings speak against a strict segregation of color and motion processing in the human visual cortex and suggest a network for encoding object color, which includes specialized ventral as well as dorsal visual areas.
影响因子：
3.7
作者：
Felleman, Daniel J.;Van Essen, David C.
通讯作者：
Van Essen, David C.
DOI：
10.1073/pnas.96.1.307
发表时间：
1999-01-05
影响因子：
11.1
作者：
Kraft, JM;Brainard, DH
通讯作者：
Brainard, DH