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首页> 外文期刊>IEEE transactions on neural systems and rehabilitation engineering >Speed-accuracy tradeoff during performance of a tracking task without visual feedback
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Speed-accuracy tradeoff during performance of a tracking task without visual feedback

机译：在没有视觉反馈的情况下执行跟踪任务期间的速度精度折衷

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To help people with visual impairment, especially people with severely impaired vision, access graphic information on a computer screen, we have carried out fundamental research on the effect of increasing the number of detection fields. In general, application of the parallelism concept enables information to be accessed more precisely and easily when the number of sensors is high. We have developed a "Braille Box" by modifying Braille cells to form a tactile stimulator array which is compatible with the fingertip. Each pin can be controlled independently so that we can change the size and type of array in order to study the tactile perception of both simple and complex graphical forms. Our results show that by applying the parallelism concept to the detection field, people with visual impairment can increase the speed of exploration of geometric forms without decreasing the level of accuracy: thus, avoiding a speed-accuracy tradeoff. Further experiments need to be done with this Braille Box in order to improve the device and help people with visual impairment access graphic information.
机译：为了帮助视力障碍的人，特别是视力严重受损的人，在计算机屏幕上访问图形信息，我们对增加检测范围的数量进行了基础研究。通常，当传感器数量很大时，并行性概念的应用可使信息更精确，更轻松地访问。我们通过修饰盲文细胞以形成与指尖兼容的触觉刺激器阵列来开发“盲文盒”。每个引脚都可以独立控制，以便我们可以更改数组的大小和类型，以便研究简单和复杂图形形式的触觉。我们的结果表明，通过将并行性概念应用于检测领域，有视觉障碍的人可以提高几何形状探索的速度，而不会降低准确性水平：从而避免了速度精度的折衷。此盲文箱需要做进一步的实验，以改进设备并帮助视力障碍人士获得图形信息。

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