Target scene distance extraction device and method based on InGaAs camera

The invention discloses a target scene distance extraction device based on an InGaAs camera, the target scene distance extraction device comprises a laser, a sequential control and image acquisition processing module, a transmitting lens, a receiving lens and the InGaAs camera, and the invention also discloses a target scene distance extraction method based on the InGaAs camera. A high-precision time delay and image difference method is adopted, the distance value can be extracted while the target scene can be effectively extracted, the distance precision can be matched with the internal clock of the camera, and a pixel integral counting clock is achieved. The problem that the laser gating imaging precision is limited by the minimum integral time of the device is solved. 本发明公开了基于InGaAs相机的目标场景距离提取装置，包括激光器，还包括时序控制与图像采集处理模块、发射镜头、接收镜头和InGaAs相机，本发明还公开了基于InGaAs相机的目标场景距离提取方法。本发明采用高精度时间延迟和图像差值法，能有效提取目标场景的同时提取距离值，距离精度可与相机的内部时钟匹配，达到像元积分计数时钟。本发明解决了激光选通成像精度受限于器件最小积分时间的难题。