Method for automatically split-jointing wide-angle image

An automatic stitching, wide-angle image technology, applied in the field of image processing, can solve the problems of no automatic image correction function, difficult accurate fusion and seamless stitching, etc.

Inactive Publication Date: 2008-10-01
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the shortcomings of this technology are: 1. It does not have the function of automatically correcting the deformation and distortion of the image; 2. The image is mapped to spherical coordinates after "vertical...

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  • Method for automatically split-jointing wide-angle image
  • Method for automatically split-jointing wide-angle image
  • Method for automatically split-jointing wide-angle image

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Embodiment Construction

[0098] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.

[0099] Such as figure 1 As shown, X, Y, and Z are the world coordinate system, and the actual position coordinates of the corresponding object point are P=[x y z] T , the coordinate unit is the physical distance m; X′, Y′, Z′ are the camera coordinate system, that is, the coordinate system used in the imaging process of the camera. The origin of the coordinate system is at the optical center of the camera, and the Z′ axis is taken as The direction of the optical axis, X' and Y' are established on the lens plane, and the direction is consistent with the normalized vir...

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Abstract

A wide-angle image automatic joining method comprises: a step one of setting a moving speed of a wide-angle camera and an image collecting period; a step two of obtaining a superposition pixel width of two adjacent images; a step three of building an image non-linear aberration correcting mathematical model; a step four of creating an image data coordinate conversion relationship; a step five of calculating an aberration vector parameter and an outer parameter value; a step six of performing an inversion operation on the image with aberration to obtain the whole real image after correcting the non-linear aberration; a step seven of rapidly finding common characteristics of the two adjacent images in the superposition width of the images with corrected non-linear aberration; a step eight of realizing registration of the two images by perspective conversion; a step nine of joining the two registered images; a step ten of inosculating the joining position of the images based on a wavelet bicubic interpolation searching method. According to the invention, continuous inosculation and seamless join of the adjacent images can be automatically realized.

Description

technical field [0001] The present invention relates to a method in the technical field of image processing, in particular to a wide-angle image automatic splicing method. Background technique [0002] Image stitching is an important branch of computer vision, which seamlessly stitches more than two partially overlapping images to obtain images with higher resolution or wide viewing angles. Image stitching plays an important role in virtual reality, panorama production, medical imaging and other fields. Image stitching must complete two key processes of image registration and image fusion. Registration parameters such as image rotation and translation can be determined through image registration operations, and image fusion operations can make the composite images achieve natural transition and finally achieve seamless splicing. However, in practical applications, due to the differences in exposure of the digital images to be stitched, errors in image registration, morphol...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T5/50
Inventor 应俊豪张秀彬莫臻李君峰
Owner SHANGHAI JIAO TONG UNIV
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