A Video Plane Detection Method Based on Improved Algorithm

A technology for improving algorithms and videos, applied in the field of image processing, which can solve problems such as difficult to extract plane structures

Inactive Publication Date: 2016-08-17
陕西帮你电子科技有限公司
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AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the traditional plane extraction method is difficult to quickly and accurately extract the plane structure from the video sequence, the present invention proposes a video plane extraction method based on an improved algorithm, which can provide a better plane extraction effect of the video sequence

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  • A Video Plane Detection Method Based on Improved Algorithm
  • A Video Plane Detection Method Based on Improved Algorithm
  • A Video Plane Detection Method Based on Improved Algorithm

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Embodiment Construction

[0040] The implementation of the method of the present invention will be described in detail below.

[0041] A video plane extraction method based on an improved algorithm. This method first tracks the feature points through the standard KLT method for a given video sequence, and records the obtained feature point trajectory; calculates the reprojection error between adjacent frames to Determine whether the trajectory belongs to the plane corresponding to the current homography matrix, and track and extract the plane of the entire video sequence; using the obtained plane model and their corresponding homography set, the video can be segmented to obtain the final plane Extract results.

[0042] The concrete realization process of the inventive method is as follows:

[0043] Step 1. Video reading;

[0044] Read the input video, decompose the video frame by frame into picture format and record it;

[0045] Step 2, feature point tracking;

[0046] Use the standard KLT algorith...

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Abstract

The invention relates to a video plane extraction method based on an improved algorithm. In the method, tracking of characteristic points of a given video sequence is firstly performed through a standard KLT method and obtained characteristic-point tracks are recorded; whether the tracks belong to planes corresponding to a current homography matrix is judged through calculation of a reprojection error between adjacent frames and then tracking and extraction of planes of the whole video sequence are performed; and through use of obtained plane models and homography sets corresponding to the plane models, a video can be segmented so as to obtain a final plane extraction result. The video plane extraction method based on the improved algorithm is capable of extracting planes directly from the video sequence; and the tracks are selected as operation objects so that global uniformity of the plane extraction result is ensured and test convergence speed is speeded up and test convergence accuracy is improved significantly.

Description

technical field [0001] The invention relates to a video plane detection method based on an improved algorithm, in particular to a video sequence plane extraction method based on feature point tracking, and belongs to the field of image processing. Background technique [0002] Plane extraction has always been an important research direction in the field of computer vision and graphics. Since the plane structure is one of the most common types of basic geometric features in real scenes, it contains a large amount of two-dimensional structure information of the object, and has strong geometric constraints on the points located on the plane. In many practical applications, such as constructing scene space, obstacles or target object models, etc., it is necessary to pre-extract the planar structure in the scene for processing or interaction. There have been many works in this area, such as spatial plane extraction based on J-Linkage clustering (Toldo R, Fusiello A. Robust multi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00
Inventor 黄华陶蕾张磊
Owner 陕西帮你电子科技有限公司
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