A digital photography laser scanning device
A laser scanning device and digital photography technology, applied in the direction of optical devices, measuring devices, instruments, etc., can solve the problem of increasing the workload of laser point clouds and digital images, the limited field of view of a single camera, and the inability to guarantee stability, etc. problem, to achieve the effect of light weight, small size and high resolution
Active Publication Date: 2019-01-08
BEIJING SURESTAR TECH
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[0003] In the existing technical scheme, the digital image is obtained through a digital camera installed externally on the upper part of the laser scanner. Since the installation posture of the external camera cannot be guaranteed to be stable when the equipment is disassembled and the camera station is switched, various procedures must be carried out. Calibration of laser point clouds and digital images at camera stations; at the same time, due to the limited field of view of a single camera, the range of digital images acquired is also small; and calibration parameters are calculated for each camera station, which greatly increases the number of laser point clouds and digital images. Fusion workload
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[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic structural diagram of a digital photography laser scanning device provided by an embodiment of the present invention, the scanning device includes a laser scanning measurement module 1, a horizontal scanning base 2, a digital camera module 3, a rigid support module 4, and a positioning ...
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The invention discloses a digital photography laser scanning device. A laser scanning measurement module is used for collecting three-dimensional laser scanning point cloud data of a spatial target. A digital camera module is used for obtaining a digital image in a view field range. A horizontal scanning substrate drives the whole scanning device to rotate around a vertical axis for 360 degrees. A positioning leveling module is used for obtaining the coordinates of a photographing point of the scanning device in a global coordinate system. A control calculation module controls the laser scanning measurement module to carry out scanning, controls the digital camera module to carry out exposure, controls the horizontal scanning substrate to rotate, and controls the positioning leveling module to carry out measurement. A rigid support module is used for constructing the equipment coordinate system of a camera station laser point data and the digital image, and converting the laser point data and the digital image of the equipment coordinate system into a global coordinate system. The device is compact and integrated, is small in size, is light in weight, and can achieve the obtaining of the full-field-range laser point cloud data and the digital image.
Description
technical field [0001] The invention relates to the technical field of laser scanning measurement devices, in particular to a digital photography laser scanning device. Background technique [0002] Three-dimensional laser scanning technology has been gradually commercialized from the principle prototype in the 1990s and put into practical application. It has become an indispensable technical means for obtaining three-dimensional spatial information. With the improvement of market application requirements, especially the rapid development of terrestrial 3D laser scanning technology, on the one hand, it is required to improve the overall performance of the equipment, including point cloud density, measurement accuracy, automatic processing degree, etc.; on the other hand, it is necessary to integrate GNSS, digital Components such as cameras require equipment integration, miniaturization, and light weight to facilitate field operations. [0003] In the existing technical sche...
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IPC IPC(8): G01B11/24
CPCG01B11/24
Inventor 张智武杨燕林
Owner BEIJING SURESTAR TECH