第一种方法基于加权近邻搜索，在不规则光幻视点阵列中找出距规则阵列中目标点最近点；
One method was to generate phosphene closest to the target point in regular arrays using weighted nearest neighbor search.
压眼闪光，光幻视：通过机械或电子途径而不是通过光使视网膜兴奋从而感受到光，如当眼球被紧闭的眼脸压迫时。
A sensation of light caused by excitation of the retina by mechanical or electrical means rather than by light, as when the eyeballs are pressed through closed lids.
各种视觉假体刺激的部位不同，但是基本功能是相同的，都需要将外界的光信号转换为可用的电流脉冲，通过微电极阵列刺激相关部位产生光幻视。
All visual prostheses have the same function: converting outside optical signal to certain current pulses and stimulating the relevant parts by the micro-electrode array to generated phosphenes.
各种视觉假体刺激的部位不同，但是基本功能是相同的，都需要将外界的光信号转换为可用的电流脉冲，通过微电极阵列刺激相关部位产生光幻视。
All visual prostheses have the same function: converting outside optical signal to certain current pulses and stimulating the relevant parts by the micro-electrode array to generated phosphenes.
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