Image rendering method and apparatus

Abstract

Embodiments of the invention disclose an image rendering method and apparatus. The method comprises the steps of obtaining a to-be-displayed image; and by utilizing pre-built rendering model and distortion model, rendering and displaying the to-be-displayed image to an eye lens, wherein the rendering model comprises multiple geometric primitives, and the size of each geometric primitive has a negative correlation relationship with a distance between the geometric primitive and a central point of the rendering model. For a central visual field region of the image with the relatively low distortion dispersion degree, the rendering display is performed by utilizing the sparse geometric primitives, so that the quantity of reference pixel points in the central visual field region is reduced, frequent calling of a sampler in a GPU rendering pipeline fragment shader is reduced, the calculation efficiency is greatly improved, the rendering efficiency is improved, calculation resources are saved, and the power consumption is reduced; and for an external visual field region with the relatively high distortion dispersion degree, the rendering display is performed by utilizing the dense geometric primitives, so that the accuracy of anti-distortion rendering is ensured.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to an image rendering method and device. Background technique [0002] Due to the limited size of the eyepiece of the virtual reality device, usually only a small-sized single lens is used to form the optical system of the virtual reality device. The distortion and dispersion caused by the small-sized eyepiece are obvious, which seriously affects the viewing experience of the device user. Among them, distortion refers to distortion phenomena such as curling, bulging and other distortions around the observation field of view when shooting or observing objects with the eyepiece, which is generally caused by the characteristics of the eyepiece itself, while dispersion is caused by different It is caused by different degrees of distortion of colored light in the field of view. Therefore, in order to correct the picture observed by the observer, it is necessary to perfo...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of the prior art, the present invention provides an image rendering method and device, which can solve the problem that the accuracy of anti-distortion and anti-dispersion and rendering efficiency cannot be achieved at the same time in the prior art, and improve the efficiency of anti-distortion and anti-dispersion processing. Accuracy and efficiency of subsequent rendering

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