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Vector Regression Functions for Texture Compression

delete2015-12-29
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Y
Ying Song *
L
Li‐Yi Wei
W
Wencheng Wang
DOI:10.1145/2818996delete
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Abstract

Abstract

En 中文
Raster images are the standard format for texture mapping, but they suffer from limited resolution. Vector graphics are resolution-independent but are less general and more difficult to implement on a GPU. We propose a hybrid representation called vector regression functions (VRFs), which compactly approximate any point-sampled image and support GPU texture mapping, including random access and filtering operations. Unlike standard GPU texture compression, VRFs provide a variable-rate encoding in which piecewise smooth regions compress to the square root of the original size. Our key idea is to represent images using the multilayer perceptron, allowing general encoding via regression and efficient decoding via a simple GPU pixel shader. We also propose a content-aware spatial partitioning scheme to reduce the complexity of the neural network model. We demonstrate benefits of our method including its quality, size, and runtime speed.
Keywords:
Algorithms
Theory
Experimentation
Texture compression
vector graphics
neural network
machine learning
real-time rendering
graphics hardware
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Journal

ACM Transactions on Graphics cover
ACM Transactions on Graphics
IF:
9.5
Papers:
4.7K
Citations:
3.6W

Organization

I
institute of software, cas
Scholars:
445
Papers: 387
Citations: 0
Z
Zhejiang Sci-Tech University
Scholars:
1.7W
Papers: 1.0W
Citations: 1.3W