3D light field rendering method and device

Abstract

The invention provides a 3D light field rendering method and apparatus. The method comprises the steps of performing spatial transformation on a 3D model to generate a 3D scene; setting a plurality ofcameras on the 3D scene for photographing and collecting to obtain a plurality of 3D scenes taking the cameras as centers; carrying out shearing transformation on the plurality of 3D scenes taking the camera as the center to obtain a plurality of 3D scenes which are sheared at the same time; performing perspective division on Y axes corresponding to the plurality of 3D scenes which are cut at thesame time to obtain a plurality of normalized equipment spaces; performing rasterization processing on the plurality of normalized equipment spaces to obtain a plurality of window spaces; carrying out slice element coloring on the plurality of window spaces to obtain a frame cache object containing multiple pieces of view angle image information; coloring the blank rectangle drawn on the screen by using the frame buffer object to obtain naked eye 3D light field information; and displaying the naked eye 3D light field information on the corresponding nano grating screen. According to the scheme, popularization of a multi-view naked-eye 3D display technology based on the nano grating can be accelerated.

Description

technical field [0001] The present invention relates to the technical field of 3D light field rendering, in particular to a 3D light field rendering method and device. Background technique [0002] Glasses-free 3D is a display technology that realizes left and right eye parallax without using head-mounted equipment, red-blue / polarized glasses, and switchable glasses to produce stereoscopic vision. [0003] The naked-eye 3D rendering methods proposed in the prior art all have different problems. One of the naked-eye 3D rendering methods is realized by a display based on a cylindrical lens proposed by a certain company. The display uses an ASIC (Application Specific Integrated Circuit) to complete pixel redistribution process, it can support dual-view / nine-view glasses-free 3D display. The pixel reallocation process is a process of synthesizing independently and parallelly rendered multi-view images into a single image compatible with glasses-free 3D devices. This method has...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a 3D light field rendering method and device, which solves the technical problems in the prior art that do not consider the change of the perspective method after the viewing angle is increased, and do not support real-time rendering.

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