Plot hole filling method in new viewpoints

A new viewpoint and hollow technology, applied in 3D image processing, image data processing, instruments, etc., can solve problems such as image distortion, achieve the effects of reducing impact, simplifying redundant operations, and filling results reasonably

Active Publication Date: 2015-08-26
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the holes generally come from the occluded background pixels under the original viewpoint, if the holes are not considered to be more inclined to fill the background pixels when filling, the filled image will be obviously distorted

Method used

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  • Plot hole filling method in new viewpoints
  • Plot hole filling method in new viewpoints
  • Plot hole filling method in new viewpoints

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Embodiment Construction

[0039] The invention relates to a hole filling method in drawing a new viewpoint, which is used for reducing and filling the holes in the drawing process, so as to improve the drawing quality of the new viewpoint. The main techniques used include depth map preprocessing based on trilateral filtering, determining the main smoothing area according to the depth discontinuity intensity, smoothing the main area using weighted asymmetric Gaussian filtering, and correcting the depth value of the vertical edge near the object boundary of the smoothed area , based on the estimation of the occluded area after mapping to reduce redundant operations in the mapping process, hole filling based on depth information.

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] Such as figure 1 As shown, the hole filling method in this drawing new viewpoint includes the following steps:

[0042] Step 1, preprocessing t...

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Abstract

The invention relates to a hole filling method for new viewpoint drawing. The method comprises the steps that a depth map is preprocessed before three-dimensional mapping, wherein preprocessing comprises the steps that depth map edges are detected, depth discontinuous analysis is conducted to obtain a main depth discontinuous area, and asymmetric Gaussian filtering is conducted on the main depth discontinuous area; after three-dimensional mapping, whether holes exist in a new viewpoint image is examined, and the holes are filled based on depth information if the holes exist in the new viewpoint image. Before three-dimensional mapping, smoothing is only conducted on the main depth discontinuous area, and the holes are filled based on the depth information before three-dimensional mapping, so that extra distortion caused by smoothness on areas where no hole exists or only small holes exist is effectively avoided, and the more reasonable filling effect is achieved.

Description

technical field [0001] The invention relates to a hole filling method in drawing a new viewpoint, which is based on the existing method for drawing a new viewpoint, and is used for reducing and filling holes in the drawing process, so as to improve the drawing quality of the new viewpoint. It belongs to the technical fields of computer vision, image processing and virtual reality. Background technique [0002] Since the first television service was launched by the British Broadcasting Corporation (BBC) in 1936, with the development of video technology (such as content acquisition, encoding, communication and display), television broadcasting has experienced from black and white to color, analog to digital, CRT displays to LCD displays, from passive viewing of television programs to interactive video-on-demand (VOD) services. And now, in order to realize the immersive experience, the television industry is developing toward three-dimensional television (3D-TV). 3D TV vividl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/00G06T15/00
Inventor 王好谦李政芝张永兵王兴政戴琼海
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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