ON A VISUAL AID SYSTEM USING 3D CAMERA AND ACOUSTIC METHOD

为了实现视障人士的声视辅助系统，利用三维声处理器对视障人士的声视辅助系统进行了基础研究。该系统通过耳机显示声学上的3D声音，该声音对应于要捕获的障碍物的定位。为了评估这种声学系统，还在假设存在障碍物的虚拟空间中进行了基础研究。在这项基础研究中，受试者使用一个操纵杆进行虚拟移动，该操纵杆再次虚拟移动摄像机位置。在实际空间中，受试者戴上头戴式摄像头，最后捕捉到障碍物，然后发出与障碍物位置相对应的声音。总体结果表明，该方法对障碍物的到达和捕获是有效的，即使所需的时间比预期的要长，但需要使用高速计算机来减少。

Towards a realization of an acoustic visual aid system for the visually impaered, a basic studies were made using 3D acoustic sound processor. The system displays acoustically through the headphone 3D sounds which corresponds the localization of an obstacles to be catched. To evaluate such acoustic system, a bsic study was made also in a virtual space, where an obstacle is thought to exist. In this basic study, the subjects moves virtually using ajoystic bar, which moves camera position viratually again.In actual space, the subjects wears a headmount camera, which catches the obstacles at last before generating sounds corresponding the position of the obstacles. The over all results show that this method is effective to reach and to catch an obstacles , even the time is necessary than expectation, which shall be reduced using high speed computers.