Omnidirectional three-dimensional laser color scanning system and method thereof

Abstract

The invention relates to the technical field of three-dimensional color point cloud data processing and three-dimensional scene reconstruction, and provides an omnidirectional three-dimensional laser color scanning system and a method thereof. The system comprises a laser scanner, a high speed camera, an electrically controlled rotary table, a conductive slip ring, an encoder, a data acquisition module, a switch, a servo drive, a computer and an equipment support. The method comprises the steps that 1, the electrically controlled rotary table is controlled to uniformly rotate; 2, hardware and software composite data are synchronized; and 3, synchronous acquisition data are fused. According to the invention, the software and hardware compound data synchronization method is used to synchronously acquire laser point cloud, a two-dimensional image and a rotation angle in real time; the synchronization precision is high; data fusion is carried out on the laser point cloud and the two-dimensional image of each synchronization moment to acquire the three-dimensional color point cloud data of a scene in real time; data acquisition is in real time; and data fusion is carried out on the two-dimensional image of each synchronization moment, which has the advantages of enormous image information and high fusion quality.

Description

technical field [0001] The invention relates to an omnidirectional three-dimensional laser color scanning system and a method thereof, belonging to the technical fields of three-dimensional color point cloud data processing and three-dimensional scene reconstruction. Background technique [0002] In the process of digitizing the real world, the 3D point cloud data records the geometric properties and position information of the object surface, and the 2D image records the color information and texture information of the object surface. The deep fusion of the two will form an emerging digital Media, that is, 3D color point cloud data, 3D color point cloud data is a further development of 3D point cloud data, which can more accurately describe the real world. In order to obtain the 3D color point cloud data of the scene, it is necessary to build a 3D laser color scanning system, which is mainly composed of a laser scanner, a digital camera, and a computer. The laser scanner o...

AI Technical Summary

Problems solved by technology

The above three-dimensional laser color scanning device has the following problems: 1) It is necessary to first complete the three-dimensional laser scanning of the entire scene to obtain the three-dimensional point cloud of the entire scene, and then it can be fused with the two-dimensional image of the scene, and the three-dimensional image of the scene cannot be obtained in real time during the scanning process. Color point cloud, 3D color point cloud data acquisition is not real-time; 2) The 3D point cloud of the entire scene is only fused with one or several 2D images, with little image information and low fusion quality

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