High-compression-ratio bidirectional reflection material compression representation model, method and device
A two-way reflection, high compression ratio technology, applied in probabilistic CAD, random CAD, design optimization/simulation, etc., can solve problems such as inability to modify materials, inability to judge material similarity, inability to cover parameter models, etc.
Active Publication Date: 2020-04-10
ZHEJIANG UNIV
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Problems solved by technology
[0006] First of all, the method based on parametric model fitting is difficult to fit, and the performance capability is limited by the designed parametric model. At present, there is no parametric model that can cover the real material, and many real collected material features will be lost.
[0007] In addition, based on the method of tensor data, the compression ability of the main feature extraction technology is weak, and the loss of information is serious; the fitting non-parametric function model technology can only compress the material information, cannot represent the space for the material construction, and cannot judge the relationship between materials. similarity, and the inability to visually modify the material
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.
[0029] Two-way reflective material compression representation model embodiment
[0030] The embodiment provides a bidirectional reflective material compression representation model, including an encoder and / or a decoder, wherein the encoder is used to compress bidirectional reflective material information into a low-dimensional representation space, and the input of the encoder is composed of direction information and corresponding The coded data pair composed of reflective brightness information is output as the probability distribution on the low-dimensional representa...
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The invention discloses a high-compression-ratio bidirectional reflection material compression representation model. The model comprises an encoder and a decoder, the encoder is used for compressing bidirectional reflection material information into probability distribution in a low-dimensional representation space, the input of the encoder is an encoded data pair composed of direction informationand corresponding reflection brightness information, and the output of the encoder is probability distribution in the low-dimensional representation space; and the decoder is used for decoding according to the fixed-length vector in the low-dimensional representation space to generate reflection brightness information, the input of the decoder is a decoded data pair consisting of direction information and the fixed-length vector extracted from probability distribution, and the output of the decoder is the reflection brightness information. According to the model, a high-dimensional original reflection material can be compressed into a low-dimensional representation space, the memory occupied by the original reflection material is reduced, and the low-dimensional representation space can also ensure the recovery precision. The invention further discloses a high-compression-ratio bidirectional reflection material compression representation method and a high-compression-ratio two-way reflection material compression representation device.
Description
technical field [0001] The invention relates to the technical fields of graphics drawing, material representation and deep learning, and in particular to a high compression ratio two-way reflection material compression representation model, method and device. Background technique [0002] In the field of material representation, the collection and representation of complex materials will be of great help to the graphic application of drawing high-precision materials. It has a wide range of needs and applications in the film industry, game production, virtual reality and other fields. In particular, the modeling application of high-precision models is becoming more and more extensive, which puts forward higher requirements for high-quality material design. However, directly using the collected complex material data has problems such as large storage space and few query times. In addition, the collected complex material data cannot be modified intuitively, so that more requir...
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Login to View More IPC IPC(8): G06F30/20G06F111/08
Inventor 鲍虎军王锐郑濡樟赵爽
Owner ZHEJIANG UNIV