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Interactive material appearance collection method based on Kinect equipment

A material appearance and acquisition method technology, applied in 3D image processing, image data processing, instruments, etc., can solve problems such as inability to model material appearance, and achieve the effect of reducing the difficulty of entry learning, good user experience, and low cost

Active Publication Date: 2014-07-30
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It's also worth mentioning that the Kinect SDK supports the ability to assign uncorrected RGB images to objects, but it cannot model the appearance of materials that change with lighting or viewing angle

Method used

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  • Interactive material appearance collection method based on Kinect equipment
  • Interactive material appearance collection method based on Kinect equipment
  • Interactive material appearance collection method based on Kinect equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0035] The inventor realized the embodiment of the present invention on a desktop computer equipped with Intel i73770K CPU. In the implementation, the parameter settings mentioned in the detailed description are used to obtain the results in the accompanying drawings. In practice, a frame rate of 7-16 can be achieved on an ordinary computer, and the material scanning result can be fed back to the user in real time.

[0036] The inventors tested a prototype system of the method with various objects of different sizes and materials. The results show that the present invention can obtain satisfactory results for armrest sofas with a side length of more than 1 meter, colored peppers with a radius of several centimeters, and material spans ranging from leather, wood lacquer to plastics and pottery. The required acquisition processing time averaged 10 minutes.

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Abstract

The invention discloses an interactive material appearance collection method based on Kinect equipment. According to the method, the material appearance of a certain object is collected through the single Microsoft Kinect equipment, a result is fed back to a user in real time, and a six-dimensional appearance function, changing along with different positions, lighting intensities and viewing angles, of the object is obtained at last. The method comprises the four steps: collection of ambient lighting, collection of the geometry of the object, collection and clustering of a BRDF based on a Kinect infrared camera, and calculation of diffuse reflection and specular reflection parameters. By means of the method, professional or expensive collection equipment is not adopted, and only the common Kinect equipment, a mirror ball and some marks capable of being printed by a common printer are needed; the collection result can be fed back to the user in real time, and it is avoided that the user can see the result only after a post-processing process lasting several minutes and even several hours; the material appearance of a large-sized non-planar object can be collected.

Description

technical field [0001] The invention relates to a material appearance collection technology, in particular to an interactive material appearance collection method based on a Kinect device. Background technique [0002] The relevant research background of the present invention is briefly described as follows: [0003] 1. Material appearance collection method based on professional equipment [0004] Specialized equipment, such as a spatial goniorreflectometer, can directly measure the BRDF (spatially-varying BRDF or SVBRDF) that varies with position. These methods usually densely sample the space, lighting and viewing angle, and then collect the corresponding material reflection properties (DANA, K.J., VAN GINNEKEN, B., NAYAR, S.K., AND KOENDERINK, J.J.1999. Reflectance and texture of real-world surfaces .ACM Trans.Graph.18,1(Jan.),1–34.MCALLISTER,D.K.2002.Ph.D.Thesis.A generalized surface appearance representation for computer graphics.University of North Carolina at Chapel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/50
Inventor 周昆吴鸿智
Owner ZHEJIANG UNIV
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