Method and device for rendering image

Abstract

The invention discloses a method and a device for rendering an image and belongs to the field of image processing. The method comprises the steps of selecting one of a left view and a right view of a to-be-processed image as a first view, and using the other as a second view, carrying out calculation of solving for a depth map on the first view to obtain the depth map corresponding to the first view; rendering according to the first view and the depth map to obtain an intermediate view; filling up the hollow space of which the area is smaller than a threshold value in the intermediate view according to the predetermined threshold value; searching, from the second view, a pixel block having the highest similarity with the hollow space of which the area is larger than the threshold value in the intermediate view according to the intermediate view and the second view; copying and filling the pixel block in the hollow space. The module comprises a depth map calculating module, a rendering module, a first filling module, a calculating module and a second filling module. The invention not only simplifies the complexity of the prior rendering algorithm, quickens rendering speed and greatly improves the filing effect of the hollow space.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and device for rendering an image. Background technique [0002] In recent years, with the continuous breakthrough of autostereoscopic display technology in hardware and software research, autostereoscopic display has been favored more and more in fields such as medicine, exploration, and entertainment. [0003] In order to make autostereoscopic display better and faster, a variety of image rendering algorithms have emerged. Common rendering algorithms are roughly divided into two categories: [0004] The first type is the original image plus depth map rendering algorithm (2D plus Z), which mainly calculates the parallax value of the scene point in the known view and the required intermediate view according to the corresponding depth value of the scene point in the depth map , and then calculate the projection position of the scene point in the intermediate view, and per...

AI Technical Summary

Problems solved by technology

[0009] When rendering an image, the rendering effect of the first method is not good, and there are many holes in the rendered image; the second method requires a large amount of data to be stored and transmitted, the rendering algorithm is complicated, and the rendering speed is slow

[0010] When solving the problem of voids, filling technology cannot solve the problem of voids in essence, especially when filling large-area voids, there will be obvious processing traces, and the filling effect is not ideal; the smoothing preprocessing technology deforms the object, making The visual quality of the virtual point of view received by the

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