Image registration and multi-resolution fusion-based panoramic image splicing method

A multi-resolution, image registration technology, applied in the field of panoramic image stitching, can solve the problems of long time consumption, poor stitching effect, uneven image exposure, etc.
CN108416732AInactive Publication Date: 2018-08-17CHONGQING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV OF POSTS & TELECOMM
Publication Date
2018-08-17
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an image registration and multi-resolution fusion-based panoramic image splicing method. An adaptive threshold of sequence images is subjected to binary processing and image contour information is extracted by utilizing a pixel neighborhood relationship; a similar region of an image contour structure is quickly estimated through a similarity measurement method for Hu momentinvariant features; and SIFT feature point extraction is performed in a similar region part of two original images. Moreover, feature point initial matching is performed by using a bidirectional K-nearest classification algorithm; mismatched points are screened by an RANSAC algorithm; and an affine transformation matrix among the images is estimated. In addition, in an image fusion aspect, brightness equalization and local color mapping processing is adopted. Then, through an improved Laplacian pyramid multi-resolution fusion algorithm, spliced images are fused to realize seamless splicing. According to the method, the image splicing time is shortened, the image splicing efficiency is improved, the similar region can be quickly located, the mismatch in splicing is effectively improved, and the image registration precision is improved.
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Description

technical field

[0001] The invention belongs to the field of computer vision and image processing, in particular to a panoramic image splicing method. Background technique

[0002] With the rapid development of computer vision, society's demand for image processing is also increasing. A group of image sequences that are spatially related to each other and have some overlapping areas are registered, and after resampling and fusion, a complete, high-definition new image of a wide-view scene containing the information of each image sequence is formed. The technique of high-resolution seamless images is called image stitching. Image stitching technology can synthesize the collected image sequence into a seamless panoramic high-definition image, and its application prospect is very broad. Image stitching also has important theoretical significance in the fields of virtual reality, remote sensing image processing, medical image analysis, and photogrammetry. and application value...

Claims

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