Pupil Tracking Under Direct Sunlight
Pupil Tracking Under Direct Sunlight
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直射阳光下的瞳孔跟踪
DOI：
10.1145/3450341.3458490
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Lescroart, Mark D
中科院分区：
文献类型：
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作者：
Binaee, Kamran;Sinnott, Christian;Capurro, Kaylie Jacleen;MacNeilage, Paul;Lescroart, Mark D
明亮的室外环境中的瞳孔跟踪是具有挑战性的，这是由于眼睛图像质量低和响应于明亮光的瞳孔尺寸减小。在这项研究中，我们目前的研究开发强大的户外瞳孔跟踪，而不需要遮光的眼睛。我们首先调查的相机后处理设置的效果，以找到值，提高图像质量的瞳孔跟踪的目的下直接，倾斜和阴天的阳光照明。然后，我们在这些极端的真实户外照明条件下测试了最先进的瞳孔跟踪技术的性能。我们的研究结果表明，一个关键的目标应该是保持虹膜和瞳孔之间的对比度，以支持瞳孔位置的准确估计，而不管整体眼睛图像质量。
Pupil tracking in a bright outdoor environment is challenging due to low eye image quality and reduced pupil size in response to bright light. In this study we present research to develop robust outdoor pupil tracking without the need for shading the eyes. We first investigate the effect of camera post-processing settings in order to find values that enhance image quality for the purpose of pupil tracking under direct, oblique and overcast sunlight illuminations. We then tested the performance of the state-of-the-art pupil tracking techniques under these extreme real-world outdoor lighting conditions. Our results suggest that a key goal should be maintaining the contrast between iris and pupil to support accurate estimation of pupil position regardless of the overall eye image quality.