双目视觉变焦测距技术

双目视觉测距是根据视差原理，将三维空间求深度信息的问题转化成二维空间求视差.提出一种改进的变焦测距方案，使得传统双目视觉测距系统的测量范围得到更好的延展性，测量精度有了更好的自适应性.提出测距系统的“灵敏度”定义，它是决定系统有效量程和测量精度的重要指标.根据灵敏度函数的具体标定，提出自适应的变焦测距策略，在实际的测量应用测试中已收到较好的效果.

Distance Measurement Using Binocular-Camera with Adaptive Focusing

The method of depth measurement by using binocular-camera is based on the principle of parallax, which provides a new solution to distance measurement by seeking the match point in the 2D-image. In this paper, an improved method is presented to extend the length of depth measurement with adaptive focusing. A concept of sensitivity is presented, which is an important factor for efficient and accurate depth measurement. According to the sensitivity function, an improved algorithm is presented, which is well-performed in the measurement test.