Real time panorama tracing and splicing method for mobile platform

A mobile platform, real-time tracking technology, applied in image data processing, instruments, calculations, etc., to achieve the effect of quality assurance and reduction of translation errors
CN104881869AInactive Publication Date: 2015-09-02ZHEJIANG UNIV +1
7 Cites 20 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2015-09-02
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a real time panorama tracing and splicing method for mobile platform. First, each image frame captured by a camera is used for feature tracking and is then utilized for calculating rotation posture of the camera in three-dimensional space. Second, whether the center of the camera shifts or not is also detected during the process of estimating the posture of the camera in real time. If shift occurs, a corresponding feedback is sent to a user and help is offered to the user to reset the camera position to an initial one, so that translation error between captured images can be reduced and that the images meets constraint on a sphere is guaranteed. Third, key frames and three-dimensional feature points are added and related parameters are optimized and a Map is updated completely by utilizing a bundling adjustment method. Fourth, a plurality of pictures are spliced together in real time in an offline manner on a background, and exposure compensation and multi-frequency-band fusion of images are realized, so that a panorama with geometrical consistency is generated with high quality. The result indicates that a scene expression method based on multi-view panorama has very good scene expression capability.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a panoramic scene expression method, in particular to a real-time panoramic tracking and splicing method on a mobile platform. technical background

[0002] Panorama is a common scene browsing method, which can be regarded as the promotion of ordinary wide-angle lens, with a larger viewing angle and wider scene information. With its unique visual representation, panoramas can be widely used in various fields such as scene roaming, virtual reality, texture mapping, and augmented reality.

[0003] Traditional panorama generation methods, including David Lowe's Scale-Invariant Feature (SIFT)-based (Lowe, David G. Distinctive Image Features from Scale-Invariant Keypoints. International Journal of Computer Vision 60.2, 2004: 91-110.) photo image Stitching method (Matthew Brown,David G.Lowe.Automatic Panoramic Image Stitching using Invariant Features.International Journal of Computer Vision,2007,74(1):59-73), Google's gyroscope-base...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More