A Vertical Parallax Elimination Method for Stereo Image Based on Viewpoint Synthesis

A technology of vertical parallax and stereoscopic images, which is applied in image communication, stereoscopic systems, electrical components, etc., and can solve the problems of camera parameters being unobtainable and invalid

Active Publication Date: 2015-09-02
ZHEJIANG UNIV
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Problems solved by technology

But the premise of using this method is that the stereo camera must be calibrated before the 3D film is shot, otherwise the method will be invalid
For most 3D movies in reality, the camera parameters cannot be obtained. In this case, the method of uncalibrated situation can only be used

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  • A Vertical Parallax Elimination Method for Stereo Image Based on Viewpoint Synthesis
  • A Vertical Parallax Elimination Method for Stereo Image Based on Viewpoint Synthesis
  • A Vertical Parallax Elimination Method for Stereo Image Based on Viewpoint Synthesis

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[0031] The following describes the present invention in further detail with reference to the accompanying drawings and specific embodiments, and the purpose and effects of the present invention will become more apparent.

[0032] figure 1 A flow chart of the method for stereo image correction according to the present invention is given.

[0033] The stereoscopic image correction method based on viewpoint synthesis according to the present invention is performed for stereoscopic images. A stereoscopic image is composed of two views called the left view and the right view. The stereo image is generally taken by a stereo camera, which is composed of two cameras, a left camera and a right camera, where the left camera is used to take the left view, and the right camera is used to take the right view. The stereo image can also be obtained by a single camera through time-sharing horizontal displacement shooting, at this time both the left and right cameras correspond to the same camera...

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Abstract

The invention discloses a stereo image vertical parallax eliminating method based on viewpoint synthesis. The stereo image vertical parallax eliminating method comprises the four sequent steps of carrying out epipolar rectification in a traditional method on an original stereo image to obtain an initially-rectified stereo image, matching the initially-rectified stereo image in a three-dimensional mode to obtain a corresponding horizontal parallax image, calculating according to the projection relation to obtain a horizontal parallax image and a vertical parallax image corresponding to the original stereo image and carrying out viewpoint synthesis based on the horizontal parallax image and the vertical parallax image of the original stereo image to obtain a rectified stereo image. The stereo image vertical parallax eliminating method is mainly characterized by introducing a viewpoint synthesis technique, eliminating the vertical parallax of the stereo image and meanwhile reducing projection distortion in a rectifying process.

Description

Technical field [0001] The invention relates to a method for eliminating vertical parallax of a stereo image based on viewpoint synthesis. Background technique [0002] 3D movies have developed rapidly in recent years. Generally speaking, 3D movies can be obtained by computer animation synthesis, 2D to 3D technology, and stereo camera shooting. Among them, stereo camera shooting is the mainstream of future 3D movie development. A stereo camera is usually composed of two cameras on the left and right, which are designed to be arranged in parallel with the optical axis. However, due to the accuracy of mechanical alignment, the stereo images or videos obtained by shooting cannot be completely aligned. When the stereo camera lens needs to be stretched, the movement between the left and right cameras is not synchronized, making the alignment problem more complicated. All these have caused more or less vertical parallax between the left and right views of the final stereo image or v...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/00
Inventor 杜歆邹泷朱云芳
Owner ZHEJIANG UNIV
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