Breaking camouflage and detecting targets require optic flow and image structure information
Breaking camouflage and detecting targets require optic flow and image structure information
复制标题
打破伪装和检测目标需要光流和图像结构信息
DOI：
10.1364/ao.56.006410
复制
发表时间：
2017-08-01
期刊：
影响因子：
1.9
通讯作者：
Bingham, Geoffrey P.
中科院分区：
文献类型：
--
作者：
Pan, Jing Samantha;Bingham, Ned;Bingham, Geoffrey P.
使用运动来打破伪装可以追溯到寒武纪[在眨眼：视觉如何引发进化的大爆炸(纽约基础书籍，2003)]中。我们调查了打破伪装并在运动停止后继续看到伪装目标的能力。这对捕食者的生存至关重要。对于伪装，仅使用静态图像结构(即外观)不能区分视觉目标和干扰物。运动产生另一个光学信息源--光流，它打破伪装并指定目标位置。光流根据目标和干扰物之间的空间关系对图像结构进行校准，校准后的图像结构使先前伪装的目标在运动停止后能够以时间稳定的方式被感知。我们通过实验室实验对这一方案进行了研究，并比较了单独使用光流信息或结合光流和图像结构信息识别多少伪装目标。实验结果表明，运动光流与目标投影图像结构信息相结合，能够有效稳定地感知伪装目标。(C)2017年美国光学学会
Use of motion to break camouflage extends back to the Cambrian [In the Blink of an Eye: How Vision Sparked the Big Bang of Evolution (New York Basic Books, 2003)]. We investigated the ability to break camouflage and continue to see camouflaged targets after motion stops. This is crucial for the survival of hunting predators. With camouflage, visual targets and distracters cannot be distinguished using only static image structure (i.e., appearance). Motion generates another source of optical information, optic flow, which breaks camouflage and specifies target locations. Optic flow calibrates image structure with respect to spatial relations among targets and distracters, and calibrated image structure makes previously camouflaged targets perceptible in a temporally stable fashion after motion stops. We investigated this proposal using laboratory experiments and compared how many camouflaged targets were identified either with optic flow information alone or with combined optic flow and image structure information. Our results show that the combination of motion-generated optic flow and target-projected image structure information yielded efficient and stable perception of camouflaged targets. (C) 2017 Optical Society of America