With Motion Perception, Good Visual Acuity May Not Be Necessary for Driving Hazard Detection.
With Motion Perception, Good Visual Acuity May Not Be Necessary for Driving Hazard Detection.
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DOI：
10.1167/tvst.9.13.18
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发表时间：
2020-12
影响因子：
3
通讯作者：
Luo G
中科院分区：
文献类型：
--
作者：
Moharrer M;Tang X;Luo G
探讨运动知觉和视敏度在危险驾驶检测中的作用。基于真实道路场景的视频和静止帧，对驾驶危险检测进行了测试。在使用视频的实验中，20名正常视力的参与者在四种条件下进行测试：有或没有运动中断的帧间掩模，和有或没有模拟低视力（平均20/120）通过使用扩散过滤器。视频被下采样到2.5 Hz，以允许在帧之间添加运动中断掩模以保持视频持续时间。此外，从视频中提取的单个静止帧以随机顺序显示给8名视力正常的参与者，他们判断这些帧是否在持续的危险中，有或没有扩散器。在未掩蔽的运动（n = 20）和静止帧条件（n = 8）之间比较敏感性指数d撇（d′）。在使用视频的实验中，当运动被中断时，综合性能评分（考虑反应时间和检测率）显着降低（P = 0.016）。扩散器不影响评分（P = 0.419）。评分下降主要是由于检测率下降（P = 0.002），而不是响应时间下降（P = 0.148）。参与者的d′显著降低（P < 0.001），从未掩蔽视频的2.24降至静止帧的0.68。低视力对d′也有显著影响（P = 0.004），但变化相对较小，从无漫射器的2.03到有漫射器的1.56。运动知觉在检测驾驶危险中起着比视觉灵敏度更重要的作用。运动感知可能是驾驶健康的相关标准。
To investigate the roles of motion perception and visual acuity in driving hazard detection. Detection of driving hazard was tested based on video and still-frames of real-world road scenes. In the experiment using videos, 20 normally sighted participants were tested under four conditions: with or without motion interruption by interframe mask, and with or without simulated low visual acuity (20/120 on average) by using a diffusing filter. Videos were down-sampled to 2.5 Hz, to allow the addition of motion interrupting masks between the frames to maintain video durations. In addition, single still frames extracted from the videos were shown in random order to eight normally sighted participants, who judged whether the frames were during ongoing hazards, with or without the diffuser. Sensitivity index d-prime (d′) was compared between unmasked motion (n = 20) and still frame conditions (n = 8). In the experiment using videos, there was a significant reduction in a combined performance score (taking account of reaction time and detection rate) when the motion was disrupted (P = 0.016). The diffuser did not affect the scores (P = 0.419). The score reduction was mostly due to a decrease in the detection rate (P = 0.002), not the response time (P = 0.148). The d′ of participants significantly decreased (P < 0.001) from 2.24 with unmasked videos to 0.68 with still frames. Low visual acuity also had a significant effect on the d′ (P = 0.004), but the change was relatively small, from 2.03 without to 1.56 with the diffuser. Motion perception plays a more important role than visual acuity for detecting driving hazards. Motion perception may be a relevant criterion for fitness to drive.
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影响因子：
1.8
作者：
Owsley, Cynthia;McGwin, Gerald, Jr.
通讯作者：
McGwin, Gerald, Jr.
影响因子：
1.4
作者：
Li, L;Peli, E;Warren, WH
通讯作者：
Warren, WH
影响因子：
4.1
作者：
Cross, J. M.;McGwin, G., Jr.;Owsley, C.
通讯作者：
Owsley, C.
影响因子：
--
作者：
Pelli, DG
通讯作者：
Pelli, DG
影响因子：
4.4
作者：
Dougherty, Bradley E.;Flom, Roanne E.;Raasch, Thomas W.
通讯作者：
Raasch, Thomas W.