Immersive Virtual Reality Simulations of Bionic Vision.
Immersive Virtual Reality Simulations of Bionic Vision.
复制标题
DOI：
10.1145/3519391.3522752
复制
发表时间：
2022-03
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
仿生视觉利用神经假体为无法治愈的失明患者恢复有用的视力。然而，一个重大的突出挑战是预测人们在使用设备时“看到”的内容。当前设备的视野有限，需要头部运动来扫描场景，这很难在计算机屏幕上模拟。此外，许多仿生视觉计算模型缺乏生物现实性。为了应对这些挑战，我们推出了 VR-SPV，这是一个用于模拟假肢视觉的开源虚拟现实工具箱，它使用经过心理物理学验证的计算模型，允许视力正常的参与者“通过仿生眼用户的眼睛看东西”。为了证明其实用性，我们系统地评估了临床报告的视觉扭曲如何影响字母识别和沉浸式避障任务的表现。我们的结果强调了在预测仿生视觉的视觉结果时使用适当的光幻视模型的重要性。
Bionic vision uses neuroprostheses to restore useful vision to people living with incurable blindness. However, a major outstanding challenge is predicting what people “see” when they use their devices. The limited field of view of current devices necessitates head movements to scan the scene, which is difficult to simulate on a computer screen. In addition, many computational models of bionic vision lack biological realism. To address these challenges, we present VR-SPV, an open-source virtual reality toolbox for simulated prosthetic vision that uses a psychophysically validated computational model to allow sighted participants to “see through the eyes” of a bionic eye user. To demonstrate its utility, we systematically evaluated how clinically reported visual distortions affect performance in a letter recognition and an immersive obstacle avoidance task. Our results highlight the importance of using an appropriate phosphene model when predicting visual outcomes for bionic vision.