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Method and device for deep diffusion based on contour matching

A technology of contour matching and diffusion method, which is applied in the field of computer vision, can solve problems such as slow calculation speed, and achieve the effect of reducing adverse effects, accurate matching effect, and good smoothing performance

Active Publication Date: 2012-01-04
TSINGHUA UNIV
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Problems solved by technology

The accuracy of the histogram matching method is relatively high, but the calculation speed is slow

Method used

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  • Method and device for deep diffusion based on contour matching
  • Method and device for deep diffusion based on contour matching
  • Method and device for deep diffusion based on contour matching

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Embodiment Construction

[0021] 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 only for explaining the present invention and should not be construed as limiting the present invention.

[0022] Refer below figure 1 A contour matching based depth diffusion method according to an embodiment of the present invention is described.

[0023] Such as figure 1 As shown, the depth diffusion method based on contour matching provided by the embodiment of the present invention includes the following steps:

[0024] S101: Input multiple frames of images, and extract a contour sequence of each frame of images.

[0025] S1011: Perform contour extraction on the current frame image.

[0026] First, input multiple frames of images int...

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Abstract

The invention discloses a method for deep diffusion based on contour matching. The method comprises the following steps of: inputting multiple frame images, and extracting the contour of each frame image in the multiple frame images to obtain a contour sequence of each frame image; calculating a contour characteristic value of each contour in the contour sequence of each frame image according to the contour sequence of each frame image; comparing each contour characteristic value of the current frame image with the contour characteristic value of each contour in the contour sequence of the previous frame image of the current frame to acquire a similar contour of each contour of the current frame image in the previous frame image; and assigning the depth value of an area surrounded by the similar contour in the previous frame image to an area surrounded by a contour corresponding to the current frame to generate a depth map of the previous frame image. The invention also discloses a device for deep diffusion based on contour matching. A non-key-frame depth image which can be obtained by using the method and the device has clear edges, definite depth level, high smooth performance and high time-domain stability.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a method for depth diffusion based on contour matching. Background technique [0002] Stereoscopic video technology is a new type of video technology that can provide a stereoscopic effect. Compared with single-channel video, stereoscopic video generally has two video channels, and the amount of data is much larger than single-channel video, so efficient compression of stereoscopic video is particularly important. Depth-based image rendering technology is a key technology at the decoding end of the future 3DTV system. [0003] In stereoscopic video processing, depth diffusion refers to the method of calculating the depth maps of non-key frames by using key frame images and their corresponding depth maps. The basic idea of ​​depth diffusion is to use the correlation between the key frame and the non-key frame image to find the depth area corresponding to the key frame in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T7/00
Inventor 戴琼海徐琨索津莉
Owner TSINGHUA UNIV
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