Backpack type three-dimensional laser scanning and stereo imaging combined system and data collection method by employing same

Abstract

The invention discloses a backpack type three-dimensional laser scanning and stereo imaging combined system and a data collection method by employing the same. The combination system comprises two-dimensional laser radar, a binocular stereo camera, an inertial measurement unit (IMU), a global satellite positioning system (GPS) antenna, a control unit, a portable power source and a support rod. Each part is integrated in a backpack frame. The control unit is provided with a software module, is connected with parts through cables and is configured to control shooting of the binocular stereo camera and data collection through the laser radar and record positioning and attitude determination data obtained by the IMU and the GPS; the software module is configured to perform post-processing on the obtained data to obtain and output three-dimensional point cloud data, color images and / or depth image data with position and attitude information. The backpack type three-dimensional laser scanning and stereo imaging combined system and the data collection method by employing the same are high in integration degree, rich in amount of information, measureable, convenient to use, high in expandability and low in cost, can be widely applied to the fields of resource quantitative measurement and parameter inversion application.

Description

technical field [0001] The invention relates to a three-dimensional data acquisition technology, in particular to a backpack-type three-dimensional laser scanning and stereoscopic imaging combination system and a data acquisition method. Background technique [0002] As applications such as 3D modeling, digital city, forest resource management, and forest parameter inversion require real 3D landscapes, the rapid and accurate acquisition of 3D information of target scenes has highlighted high economic value and application prospects. As an active remote sensing technology, the 3D lidar system can quickly and accurately acquire 3D point cloud data of space scenes by emitting laser beams to the measured object without touching the measured object. Three-dimensional lidar systems can be divided into airborne lidar systems, vehicle-mounted lidar systems, ground-based lidar systems, and portable lidar systems according to different platforms. The application scenarios targeted by...

AI Technical Summary

Problems solved by technology

The system integrates two-dimensional laser radar, binocular stereo camera, and positioning and attitude determination equipment to form a backpack system to achieve three-dimensional information data acquisition, including scanning and stereoscopic imaging of three-dimensional space scenes, which can solve the current problem of complex terrain. In the middle, a single person can quickly obtain high-precision 3D point clouds of real scenes, high-definition continuous color images and depth image data with position and attitude information during the movement process, and solve the fine structure parameters of current 3D lidar systems in ground objects. The problem of contradiction between complex system, large volume, high cost and harsh use conditions in computing applications

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