Change Detection of 3D Scene with 3D and 2D Information for Environment Checking

3次元と2次元の情報を用いた環境検査のための3次元変化検出手法

Lin Baowei

Recent surveillance technology developments motivate a regular observation of places such as coast, slopes and highways, where disasters and accidents can happen with high probability. Hence, any obvious change must be alerted. However, this is not practical for a wide area. Therefore, an automatic detection of unusual change seems to be useful and important.

In this thesis, we describe some methods which divided into online and offline approaches to detect temporal change. The online step is a 3D-2D detection using a 3D scene geometry at time A (reference) and the image of the same scene at time B (query or test). The offline step is a 3D-3D registration of 3D scenes for different times which could provide more accurate results.……

Change Detection

Surveillance System

Online Approach

Offline Approach

3D-2D

3D-3D

Feature Matching

Camera Pose Estimation

Scale Ratio ICP

Information science [ 007 ]

Pollution. Environmental engineering [ 519 ]

eng

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広島大学