A Hole Filling Algorithm Based on Depth Transition and Overall Variation of Depth Items

Abstract

Image rendering using depth maps is a commonly used algorithm in 2D to 3D conversion. However, using this method will cause holes to appear in the final image after rendering, causing poor visual effects. To address this problem, this paper proposes a hole filling algorithm based on depth transition and global variation of depth terms to fill holes and obtain high-quality target images. First, the depth map is filtered in the preprocessing stage, and then the depth of the front and rear background boundaries of the depth map is transitioned. This can reduce the occurrence of front and rear boundary holes. For small hole points appearing in the target image, the overall variational repair algorithm with depth term is used to process them. Large hole points are generally hole points that appear continuously on the boundary. These hole points cannot be repaired using variation and are filled with pixels at corresponding positions in the reference image. Experiments show that the results of this algorithm have excellent visual effects and have a high peak signal-to-noise ratio.

Description

technical field [0001] The present invention relates to the field of 3D display technology, and relates to front-background depth transition and hole filling technology, which can repair target images with high quality and have good visual effects, specifically a hole filling based on depth transition and overall variation of depth items algorithm. Background technique [0002] With the continuous development of video display technology, 3D display technology has become the basis of next-generation display technology with its three-dimensional, realistic, and interactive characteristics. At present, most of the 3D display technologies are realized by using the principle of parallax, that is, two different images are provided to the left eye and the right eye respectively, to simulate the characteristics of ordinary observers observing external things, so that the observers can watch at an appropriate angle. A three-dimensional sense of space is produced when the screen is d...

AI Technical Summary

Problems solved by technology

Compared with traditional algorithms, it has a better filling effect, but such algorithms are often complex and time-consuming, and difficult to implement in hardware

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