Three-dimensional scanner and its scanning method for acquiring color images with black-and-white camera
A color image, black and white camera technology, applied in the field of three-dimensional scanners, can solve the problem of high cost, achieve the effect of good quality, true and accurate color information, and reduce equipment cost
Active Publication Date: 2016-08-24
SHINING 3D TECH CO LTD
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[0005] In view of this, it is necessary to provide a three-dimensional scanner capable of obtaining color images with a black-and-white camera and a scanning method thereof to solve the problem of high cost of existing color three-dimensional scanners
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[0023] Specific embodiments of the present invention will be described in further detail below based on the accompanying drawings. It should be understood that the specific embodiments described here are only examples, and are not intended to limit the protection scope of the present invention.
[0024] see figure 1 , the 3D scanner 100 provided by the embodiment of the present invention includes a projector 10 and at least one black and white camera 20 .
[0025] The projector 10 is capable of projecting three monochromatic lights of red, green and blue to the scanned object 200 . It can be understood that the monochromatic light is structured light. The method of projecting the three monochromatic lights of red, green and blue by the projector 10 is not limited. It is also possible to project red, green and blue monochromatic light by installing a white light source in the projector 10 and setting a filter when the white light source emits light in a wrong direction.
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The invention relates to a three-dimensional scanner, which includes a projector, and the three-dimensional scanner also includes at least one black and white camera and a control system. The projector respectively projects three kinds of monochromatic lights of red, green and blue to the object to be scanned. When the projector projects each monochromatic light to the object to be scanned, the at least one black and white camera takes multiple images of the object to be scanned from multiple angles. The control system can use the gray value of the image collected by projecting red light from the projector as the value of the red channel, the gray value of the image collected by projecting green light as the value of the green channel, and use the gray value of the image collected by projecting blue light as the value of the red channel. The gray value of the blue channel is used as the value of the blue channel, and the complete color image is obtained by combining the three channel values, so as to obtain the color image of the scanned object from multiple angles. The three-dimensional scanner of the present invention can acquire color images with a black-and-white camera, greatly reducing equipment costs. In addition, the invention also provides a scanning method of a three-dimensional scanner.
Description
technical field [0001] The invention relates to a color three-dimensional scanner, in particular to a three-dimensional scanner capable of obtaining a color three-dimensional image with only a black and white camera and a scanning method thereof. Background technique [0002] Three-dimensional scanning is a high-tech integrating optical, mechanical, electrical and computer technologies. It is mainly used to scan the spatial shape, structure and color of the scanned object to obtain the spatial coordinates of the object's surface. Its significance lies in the ability to convert the three-dimensional information of the actual object into a digital signal that can be directly processed by the computer, providing a very convenient and quick means for the digitization of the object. The 3D scanner (3D Scanner) prepared by 3D scanning technology, as a fast stereoscopic measurement device, has become an important tool for three-dimensional modeling of objects because of its fast me...
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IPC IPC(8): G01B11/24G03B17/54
Inventor 吴正强赵晓波周桢人吴军俞惠智
Owner SHINING 3D TECH CO LTD