Three-dimensional image zoom method

A stereoscopic image and image technology, applied in image communication, stereoscopic system, electrical components, etc., can solve problems such as disappearance and weakening of stereoscopic effect

Active Publication Date: 2019-03-01
NINGBO UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when stereoscopic images and stereoscopic videos are displayed on mobile screens, the stereoscopic effect will be weakened or even disappeared. Filmmakers try to make the viewer focus on the specific object by adjusting the size and depth of the specific object. to enhance the three-dimensionality of that particular object

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0040] A kind of stereoscopic image zooming method that the present invention proposes, its overall realization block diagram is as follows figure 1 As shown, it includes the following steps:

[0041]Step 1: Denote the left-viewpoint image, right-viewpoint image and left-disparity image of the stereoscopic image with a width of W and a height of H to be processed as {L(x,y)}, {R(x,y)} and {d L (x,y)}; among them, 1≤x≤W, 1≤y≤H, L(x,y) represents the pixel of the pixel whose coordinate position is (x,y) in {L(x,y)} Value, R(x,y) means the pixel value of the pixel point whose coordinate position is (x,y) in {R(x,y)}, d L (x,y) means {d L The pixel value of the pixel whose coordinate position is (x, y) in (x, y)}.

[0042] Step 2: Divide {L(x,y)} into M non-overlapping quadrilateral grids with a size of 22×22, and record the kth quadrilateral...

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Abstract

The invention discloses a three-dimensional image zoom method. An expected grid of each quadrilateral grid in left and right viewpoint images is obtained according to depth of focus appointed by a user. Edge bending energy of target quadrilateral grids corresponding to all quadrilateral grids in the left and right viewpoint images, coordinate offset energy and three-dimensional quality energy of the target quadrilateral grids corresponding to all quadrilateral grids in an object selected by the user, and background keeping energy of the target quadrilateral grids corresponding to all quadrilateral grids in a background area are extracted. Through optimization, total energy is minimized. The optimum target quadrilateral grid of each quadrilateral grid in the left and right viewpoint imagesof a three-dimensional image is obtained. Through bilinear interpolation, zoomed left and right viewpoint images are obtained. A precise object shape and accurate target depth of focus can be reservedin the zoomed three-dimensional image. Close-range watching immersion feeling and relatively high depth feeling are achieved.

Description

technical field [0001] The invention relates to an image signal processing method, in particular to a stereoscopic image zooming method. Background technique [0002] With the rapid development of 3D technology, stereoscopic images and stereoscopic videos have attracted more and more people's attention and love. Especially with the development of mobile phones, tablets and personal computers, the display of mobile terminals is becoming more and more popular among users. However, when stereoscopic images and stereoscopic videos are displayed on mobile screens, the stereoscopic effect will be weakened or even disappeared. Filmmakers try to make the viewer focus on the specific object by adjusting the size and depth of the specific object. to enhance the three-dimensionality of that particular object. Therefore, when displaying stereoscopic images and stereoscopic videos on the screen of a mobile terminal, by adjusting the focus depth of the camera, the degree of attention an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/106H04N13/128
Inventor 邵枫费延佳李福翠
Owner NINGBO UNIV
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