An apparatus for calibration image acquisition and a calibration image acquisition method
A technology for calibrating images and acquiring methods, applied in the application field of 3D scanning measurement, can solve the problems of instability of calibration images, complicated and cumbersome operation process, time-consuming and labor-intensive, etc., and achieve the effect of quick and convenient image acquisition work.
Inactive Publication Date: 2017-09-01
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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At present, in the actual image acquisition operation, the 3D scanner and the calibration board are two relatively independent individuals. Experienced calibration workers are required to hold the 3D scanner or the calibration board to constantly adjust and maintain the relative position and relative position of the two. Angle, to collect clear and stable calibration images from multiple angles, the operation process is complicated and time-consuming, and the calibration images collected at the same time have a large degree of instability
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[0035] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The 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 shall fall within the protection scope of the present invention.
[0036] An embodiment of the present invention provides a device for calibration image acquisition, including a platform;
[0037] A fixing part for fixing the camera and a plurality of slots for placing calibration plates are arranged on the platform;
[0038] The relative position of the card slot and the fixing part satisfies that th...
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The invention discloses an apparatus for calibration image acquisition. The apparatus comprises a platform which is provided with a fixing part used for fixing a camera and a plurality of clamping grooves used for displacement of calibration boards. The relative position between the clamping grooves and the fixing part satisfies the following conditions: the camera is fixed at the fixing part; and after the calibration boards are placed in the clamping grooves, the calibration boards are within a shooting field-of-view scope of the camera, and the clamping grooves allow the inclination angles of the calibration boards to be changed. According to the apparatus for calibration image acquisition of the invention, calibration images at different angles can be rapidly and conveniently obtained, and image acquisition work can be rapidly and conveniently carried out by people with experience or without experience. The invention also discloses the calibration image acquisition method employing the above apparatus.
Description
technical field [0001] The invention relates to the application field of three-dimensional scanning measurement, in particular to a device for calibration image acquisition. The invention also relates to a calibration image acquisition method. Background technique [0002] For a long time, the precise measurement of the geometric dimensions of real objects has mainly used contact-type manual measurement methods that rely on measuring tools such as vernier calipers, micrometers, and angle rulers. There are also technical bottlenecks in non-contact measuring objects. [0003] With the development of computer vision technology and the drive of new technology and new demand, 3D scanning system has become an important means of non-contact measurement, and is widely used in auxiliary manufacturing and inspection in the field of industrial design, surgical positioning and rehabilitation in the medical field, game entertainment Real-world modeling and simulation in the field of ar...
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IPC IPC(8): G01B21/04
CPCG01B21/042
Inventor 张洪宇吕源治沙欧
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI