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

Abstract

Image drawing using a depth map is a commonly used algorithm in 2D to 3D, but holes occurs in a final image drawn by using this method, resulting in undesirable visual effects. To solve this problem, the invention provides a hole filling algorithm based on depth transition and overall depth item variability for filing the holes, and thus a high-quality target image can be obtained. Firstly, the depth map is filtered in a preprocessing phase, and then transition is carried out on front and back scene boundary depths of the depth map. Therefore, the occurrence of front and back scene boundary holes can be reduced. The small hole points occurring in the target image are processed by an overall variability restoration algorithm with depth items. Large hole points are generally hole points occurring on the boundary continuously, variability restoration cannot be carried out on these hole points, and these hole points are filled by pixels of corresponding positions of a reference image. Experiments show that the algorithm has an excellent visual effect and a relatively 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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