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Image rendering method and image rendering device based on depth image forward mapping

An image rendering and depth map technology, applied in the field of computer vision, can solve the problems of loss of image information, holes and distortion, and reduce image quality, and achieve the effect of reducing the amount of calculation, consuming less resources, and achieving good rendering effect.

Active Publication Date: 2015-05-20
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to reasons such as the foreground occluding the background, holes and distortion problems generally appear in the rendering results of the prior art. Larger holes cause the loss of image information, and the distortion greatly reduces the quality of the image.

Method used

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  • Image rendering method and image rendering device based on depth image forward mapping
  • Image rendering method and image rendering device based on depth image forward mapping
  • Image rendering method and image rendering device based on depth image forward mapping

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0029]For a better understanding of those skilled in the art, first combine figure 1 Explain the principles of the invention.

[0030] Such as figure 1 As shown, P is an arbitrary point in space, and its X-axis coordinates and Z-axis coordinates in the world coordinate system are respectively b 0 and Z; C ref is the optical center of the real camera corresponding to the two-dimensional reference view, C vir is the optical center of the virtual camera corresponding to the two-dimensional virtual view; V ref is the imaging pos...

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Abstract

The invention provides an image rendering method and an image rendering device based on depth image forward mapping, and the method comprises the following steps of: inputting a reference image and a corresponding depth image; obtaining a mapping coordinate set according to the reference image and the depth image; carrying out smooth filtering on the mapping coordinate set so as to obtain the filtered mapping coordinate set; carrying out forward mapping on the reference image according to the filtered mapping coordinate set so as to generate a corresponding virtual view; carrying out cavity filling on the virtual view so as to obtain the filled virtual view; and carrying out border finishing to the filled virtual view so as to obtain a final virtual view. The method and the device provided by the invention are small in energy consumption and good in rendering effect, calculation quantity is reduced and at the same time, quality of a two-dimensional virtual view is ensured, and thus, the method and the device are particularly suitable for being used in situations having certain requirements on both instantaneity and quality and limited in resource.

Description

technical field [0001] The present invention relates to the technical field of computer vision, in particular to an image rendering method and an image rendering device based on depth map forward mapping. Background technique [0002] In recent years, with the rapid development of display vision technology, various new stereoscopic display technologies have emerged, such as polarized light stereoscopic display technology, naked-eye multi-viewpoint stereoscopic display technology, passive synchronous stereoscopic display technology, etc., setting off a worldwide trend. A visual revolution in field stereo technology. Stereoscopic display technology, with its strong stereoscopic sense of reality, gives people an immersive and shocking feeling. Stereoscopic display technology has broad application prospects in many fields such as Free Viewpoint Video, virtual reality, stereoscopic TV, and stereoscopic games. [0003] However, with the rapid development of stereoscopic display ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
Inventor 戴琼海谭汉青徐秀兵
Owner TSINGHUA UNIV
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