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Stereo image stitching method based on content of images

A technology for stereoscopic images and image content, which is applied in the field of image processing and can solve the problems of comfortable 3D visual experience and inability to transmit

Inactive Publication Date: 2016-06-15
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

As researchers dig deeper, more challenges and constraints emerge in creating comfortable 3D experiences
Ordinary extensions to existing 2D stitching algorithms often fail to deliver a comfortable 3D visual experience, so new techniques are needed to adapt to new constraints and to better utilize new information from stereoscopic media

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  • Stereo image stitching method based on content of images
  • Stereo image stitching method based on content of images

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Embodiment Construction

[0052] The present invention proposes a hybrid transformation model for stereoscopic image mosaic by combining projection transformation and content preservation transformation. First, an iterative method to find a consistent homography matrix method is proposed. This homography matrix pre-transforms the non-reference stereo image to ensure the consistent transformation of the left and right images in the stereo image. Afterwards, a content-preserving warping method is introduced to locally improve connectivity and reduce vertical parallax. Finally, a seam-based algorithm is designed to find hybrid stitching, and finally a multi-band blending algorithm is used to produce the final stitched image. The invention can effectively stitch three-dimensional pictures, avoid local deformation, and reasonably reduce vertical parallax. The specific technical scheme is divided into the following steps:

[0053] 1. Pre-transformation based on homography matrix

[0054] with Represen...

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Abstract

The invention belongs to the technical field of stereo images, being able to realize effective stitching of stereo images, avoiding local deformation and reasonably reducing the vertical parallax. The invention relates to a stereo image stitching method based on content of images. The method comprises the steps: utilizing a consistent homography matrix after optimization to perform pre-deformation on the left and right images; utilizing an image tuning and warping method based on contents to optimize image stitching and avoid distortion of vision; and at last, utilizing a lookup algorithm based on kerf and a multi-tape mixed algorithm to acquire the final image stitching result. The stereo image stitching method based on content of images is mainly used for image processing.

Description

technical field [0001] The invention belongs to the technical field of image processing and relates to a stereoscopic image mosaic technology based on image content. Background technique [0002] Image stitching has received extensive attention in computer vision and cartography. It can stitch the near-field images with small scenes into a single image with a large field of view. Currently, stitching technology is integrated in well-known commercial software such as Adobe and Photoshop, which are widely used to help users organize and make photo collections. [0003] Traditionally, image stitching often synthesizes images through projective transformations with parameters. Such projective transformations are usually implemented using homography matrices. Although 2D projective transformations are stable, they can only provide accurate stitching for planar scenes or for parallax-free camera movements, i.e. the cameraman's physical position must be fixed and only rotational...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/00
CPCG06T3/14
Inventor 侯春萍阎维青刘琦浦亮洲王来花
Owner TIANJIN UNIV
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