Department of Physics, Harbin Institute of Technology, Harbin 150001, China.
Opt Lett. 2009 Nov 15;34(22):3550-2. doi: 10.1364/OL.34.003550.
We present a three-dimensional imaging method using a pulsed laser as a flood illuminating source and an intensified camera as the receiver with exponentially modulated gain. The depth map of a scene is obtained from two intensity images and the depth accuracy is independent of the depth of the target in the scene. We demonstrate a depth-independent depth accuracy of 0.32 m in an indoor experiment and obtain a depth map of an outdoor scene ranging from 150 to 180 m under a lower signal to noise ratio condition.
我们提出了一种使用脉冲激光作为漫射照明光源和增强相机作为接收设备的三维成像方法，其增益呈指数调制。通过两幅强度图像获取场景的深度图，且深度精度与场景中目标的深度无关。我们在室内实验中证明了 0.32 米的深度独立精度，并在较低信噪比条件下获取了 150 至 180 米范围内的室外场景深度图。
