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Device and method for gem three-dimensional blank reconstruction design based on machine vision

A technology of machine vision and gemstones, applied in the field of gemstone blank design system, can solve problems such as difficult to achieve optimal design, does not support automatic design, and relies on designer experience, etc., to achieve easy purchase and application, flexible cutting design, and convenient measurement Effect

Inactive Publication Date: 2008-02-06
许焱 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problems of complex structure and high cost in the existing gemstone blank reconstruction device; and the design method does not support automatic design, the manual design parameter process is cumbersome and time-consuming, and it is too dependent on the experience of the designer to achieve the optimum. Design issues, providing a machine vision-based device and method for 3D rough reconstruction design of gemstones

Method used

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  • Device and method for gem three-dimensional blank reconstruction design based on machine vision
  • Device and method for gem three-dimensional blank reconstruction design based on machine vision
  • Device and method for gem three-dimensional blank reconstruction design based on machine vision

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specific Embodiment approach 1

[0017] Specific embodiment one: referring to Figure 1, the device of this embodiment is composed of an image acquisition device 1, a rotating platform device 2, a processing system 3, and a lighting device 4. The signal output terminal of the image acquisition device 1 and the signal input terminal of the processing system 3 Connected, the control input end of the rotating platform device 2 and the lighting device 4 are connected to the control output end of the processing system 3, and the output light of the lighting device 4 is supplied to the input end of the image acquisition device 1, which is composed of the camera 1-1 It is composed of an image capture card 1-2. The signal output end of the camera 1-1 is connected to the signal input end of the image capture card 1-2. The rotating platform device 2 is composed of a platform body 2-1, a driving motor 2-2, and a device The control card 2-3 is composed of the transmission output end of the drive motor 2-2 and the platform bod...

specific Embodiment approach 2

[0018] Specific implementation manner 2: Referring to FIG. 2, the method steps of this implementation manner are:

[0019] Step 1. Startup: Place the gemstone blank W to be tested on the platform body 2-1, and the processor 3-1 will issue a control command to the auxiliary light source 4-1 to provide backlighting for the platform body 2-1;

[0020] Step 2: Reconstruction of the blank: The processor 3-1 controls the drive motor 2-2 through the device control card 2-3 to drive the platform body 2-1 to rotate with high precision at a specified rate, and collects the gem blank W to be tested by the camera 1-1 Video from all angles, the collected video is converted into a multi-frame digital image sequence by the image capture card 1-2 and sent to the processor 3-1, and the multi-frame digital image sequence is calculated by the processor 3-1 to obtain the gemstone blank W to be tested 3D surface and shape parameters of, and reconstruct the shape of the gem blank in the processor 3-1; ...

specific Embodiment approach 3

[0023]Specific embodiment three: referring to Fig. 3, the difference between this embodiment and the specific embodiment two is that the steps of the blank reconstruction in step three are as follows: Step A, start the rotating equipment: start the camera 1-1 and the rotating platform body 2-1 , The device control card 2-3 controls the drive motor 2-2 to drive the platform body 2-1 to rotate with high precision at a specified rate; Step B, image acquisition: the camera 1-1 performs image acquisition on the gem blank W to be tested, and passes The image capture card 1-2 transmits the captured image to the processor 3-1; Step C, image preprocessing: noise removal, thresholding, image segmentation of the gem blank W to be tested; Step D, gem contour polygon fitting: Starting from the quadrilateral, gradually increase the number of sides until the surrounding error between the polygon and the gemstone contour is less than the specified value; Step E. Calculate the coordinates of each ...

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Abstract

A device and a method for reconstruction designing of the precious stone three-dimensional blank based on mechanical vision relates to a device and a method for reconstruction cutting work designing of the precious stone three-dimensional blank based on mechanical vision method, so as to solve the problems that the blank reconstruction device of the existing precious stone is complicated in structure and expensive in cost; as well as the designing method exists the problems that the designing method cannot support automatic designing, the manual design parameter process is fussy and wastes a long time, the experience of the designer is depended on very much, and the best design is very difficult to achieve. The signal output terminal of the picture collection equipment of the present invention is connected with the signal input terminal of the processing system, the control input terminal of the rotate platform equipment and the illumination equipment are connected with the control output terminal of the processing system, the output light of the illumination equipment supplies the input terminal of the picture collection equipment. The method and the step of the present invention is as follows: step one, start; step two, blank reconstruction; step three, cutting work designing; step four, three-dimensional modeling. The present invention has the advantages that the testing time is short, the cutting work designing is flexible and the cost performance is high, and is convenient for users to purchase and apply.

Description

Technical field [0001] The invention relates to a gem blank design system, in particular to a device and a method for performing gem blank reconstruction cutting design based on a machine vision method. Background technique [0002] Gem cutting design is the most important process in the gem processing process. It is necessary to weigh the indicators and find a balance point. The quality of gem cutting design directly affects the future commercial value of this gem. It requires designers to optimize the design based on existing experience and customer requirements on the basis of precise measurement of the gem rough. It requires a strong spatial imagination and rich gem processing and business experience. With the increasing complexity of user requirements and increasing demand, the existing manual methods can no longer meet the requirements. Therefore, it is necessary to introduce intelligent technology and automatic detection technology into the field of gem design. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T1/00G06T17/00G01B11/24
Inventor 屈桢深
Owner 许焱
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