论文标题
沉浸式虚拟现实模拟的仿生愿景
Immersive Virtual Reality Simulations of Bionic Vision
论文作者
论文摘要
仿生的视觉使用神经假体来恢复无法治愈的失明的人的有用愿景。但是，一个主要的挑战是预测人们使用设备时“看到的”。当前设备的有限视野需要头部移动来扫描场景，这很难在计算机屏幕上进行模拟。此外，许多仿生视觉的计算模型都缺乏生物现实主义。为了应对这些挑战，我们提出了VR-SPV，这是一种开源的虚拟现实工具箱，用于模拟的假肢视觉，它使用经过心理物理验证的计算模型，使观察参与者可以“透过仿生的眼睛”的眼睛“看见”。为了证明其效用，我们系统地评估了临床报道的视觉扭曲如何影响字母识别和沉浸式障碍避免任务的性能。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磷酸模型的重要性。
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.
