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首页> 外文期刊>Journal of vision >EFFECTIVENESS OF 2D CAMERA SYSTEM IN ASSISTING OPERATORS IN VISUAL TASKS
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EFFECTIVENESS OF 2D CAMERA SYSTEM IN ASSISTING OPERATORS IN VISUAL TASKS

机译:二维相机系统在视觉任务中辅助操作员的有效性

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摘要

In aerial refueling operations, boom operators of KC-135 Stratotankers rely on direct vision to command receiver pilots into position and maneuver the flying into the receptacle of receiver aircrafts. A laboratory-based feasibility study was conducted to determine if indirect 2D camera-assisted vision system can be used to replace current unaided vision mode of operation in prolonged awkward postures leading to neck pain, fatigue and discomfort. 8 volunteers who underwent functional vision tests (visual acuities under different test illuminations, contrast sensitivity and colour vision) were recruited to assess suitability of participants and ascertain best corrected visual performance of these individuals using different visual devices (Camera A: wide field-of-view camera with compromised resolution versus Camera B: limited field-of-view camera with superior visual resolution) displayed through a 7-inch LCD display panel. In a simulated task experiment, participants had to remotely control a moving object, "the boom" into a stationary target, "the receptacle" using the proposed visual devices, to determine the feasibility of their applications at the outset of operational missions. In addition, a subjective survey was administered at the end of the experiment to determine the participantsa?? level of confidence in using the camera systems. Successful simulated task outcomes were demonstrated for both unaided and aided vision using Camera B with proposed display. This was supported by favourable participantsa?? confidence: 95%CI (83.41, 97.59), mean=90.5 for unaided vision; 95%CI (11.07, 37.68), mean=24.38 for aided vision using Camera A with display; 95%CI (67.92, 93.08), mean=80.5 for Camera B with display. None of the participants demonstrated successful task outcomes using Camera A with the similar LCD display. More results will be presented during poster presentation. By adopting an ergonomically more compatible 2D camera system (Camera B with LCD display), the boom operators will be able to perform aerial refueling operations remotely in a more comfortable setting.
机译:在空中加油作业中,KC-135同型坦克的吊臂操作员依靠直接的视觉命令接管机飞行员进入位置并操纵飞机飞入接管机的机舱。进行了一项基于实验室的可行性研究,以确定是否可以使用间接2D摄像头辅助视觉系统替代长期处于尴尬姿势的当前无辅助视觉操作模式,从而导致颈部疼痛,疲劳和不适。招募了8位接受功能性视力测试(在不同测试照明下的视敏度,对比敏感度和色觉)的志愿者,以评估参与者的适合性,并使用不同的视觉设备确定这些人的最佳矫正视力(相机A:与相机B相比分辨率较差的全景相机:通过7英寸LCD显示面板显示的有限视野的相机(具有出色的视觉分辨率)。在模拟任务实验中,参与者必须使用提议的视觉设备将活动物体(“吊杆”)远程控制到固定目标“容器”中,以确定在开始执行任务时其应用的可行性。另外,在实验结束时进行了主观调查,以确定参加者。使用摄像头系统的信心水平。使用建议的显示功能,使用相机B演示了成功的模拟任务结果,无论是辅助视觉还是辅助视觉。这得到了有利参与者的支持a?置信度:95%CI(83.41,97.59),无助视力平均值= 90.5; 95%CI(11.07,37.68),使用带有显示功能的相机A的辅助视力平均值= 24.38; 95%CI(67.92,93.08),带有显示的相机B的平均值= 80.5。没有参与者使用具有类似LCD显示屏的Camera A演示成功的任务成果。在海报展示期间将展示更多结果。通过采用更符合人体工程学的2D摄像机系统(带LCD显示屏的摄像机B),动臂操作员将能够在更舒适的环境中远程执行空中加油操作。

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