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A gaze point rendering optimization algorithm based on a visual perception model

A technology for visual perception and optimization algorithms, applied in computing, 3D image processing, instruments, etc., can solve problems such as loss, waste of rendering resources, visual quality, and failure to consider the minimum size of the human eye, and achieve the effect of improving rendering performance.

Active Publication Date: 2019-05-21
GUANGDONG UNIV OF TECH
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Problems solved by technology

[0004] However, the above methods do not take into account the minimum size that the human eye can perceive, which will lead to a waste of rendering resources and a loss of perceived visual quality

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  • A gaze point rendering optimization algorithm based on a visual perception model
  • A gaze point rendering optimization algorithm based on a visual perception model
  • A gaze point rendering optimization algorithm based on a visual perception model

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Embodiment Construction

[0036] Research in visual science has shown that the spatial sensitivity of the human eye decreases by a factor of 35 from the fovea region to the peripheral region. In addition, the moving speed of the fixation point will also reduce the frequency range and upper limit that the eye can perceive; therefore, the spatial frequency (c / deg) can be used to measure the spatial sensitivity of the human eye. For computer graphics, scene details larger than 60c / deg can be removed with little change in these details noticed by the user.

[0037] The solution of the present invention proposes a visual perception model, and the model derives the visual sensitivity H(v,r) under the condition of given fixation point moving speed v pixels / s and distance r pixels from the current fixation point to the surrounding area. It is a measure of the smallest detail an observer can resolve. The visual perception model is as follows:

[0038]

[0039]

[0040] where ρ is the pixel density of th...

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Abstract

The invention discloses gaze point rendering optimization based on a visual perception model. According to the algorithm, a perception model is established to calculate the visual sensitivity of different screen areas; The visual sensitivity provides a prompt for removing unperceptible triangular patches, and the perceptible area of the model is refined, so that better rendering performance is obtained under the condition that visual perception is met, and a curved surface subdivision result well meets the visual perception size. Experimental results show that the method comprehensively considers the visual perception size and the influence of the speed on the retina on rendering, and the rendering performance of the real-time rendering framework is obviously improved.

Description

technical field [0001] The invention relates to the technical field of computer graphics, in particular to a foveated rendering optimization algorithm based on a visual perception model. Background technique [0002] With the rapid development of VR head-mounted display devices, VR scenes need to be presented with higher resolution and higher frame rate, which consumes more rendering resources. Foveated rendering is an important technique for balancing rendering resource requirements and user satisfaction, and it exploits the fact that the spatial resolution of the human visual system decreases with distance from the current foveation. Therefore, we can reduce the computational cost without any loss of visual quality by displaying high-quality images in the foveal region and low-quality images in the peripheral regions, as figure 2 shown. [0003] Model-based foveated rendering aims to reduce spatial resolution by directly manipulating model geometry, which can effectively...

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Application Information

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IPC IPC(8): G06T15/00
CPCY02T10/40
Inventor 战荫伟郑子鹏杨卓
Owner GUANGDONG UNIV OF TECH
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