The topological map is a model that represents 2D and 3D images subdivision. It aims to allow the use of topological and geometrical features of the subdivision in image processing operations. When handling regions in an image, one of the main operation is the region merging, for example in segmentation process. This paper presents two algorithms of region merging in 3D topological maps: one lo...

We present an algorithm for merging two partial maps obtained with a laser range scanner into a single map. The most unique aspect of our algorithm is that it does not require any information on the position where the scans were collected. The algorithm operates by performing a geometric match of the two scans and returns the best fused map obtained by merging the two partial maps. The algorith...

The purpose of this paper is to present a technique to create a global map of a robot’s surrounding by converting the raw data acquired from a scanning sensor to a compact map composed of just a few generalized polylines (polygonal curves). To merge a new scan with a previously computed map of the surrounding we use an approach that is composed of a local geometric process of merging similar li...

12 Agricultural activities mainly occur in rural areas; recently, ecological conservation 13 and biological diversity are being emphasized in rural communities to promote 14 sustainable development for rural communities, especially for rural communities in 15 Taiwan. Therefore, since 2005, many rural communities in Taiwan have compiled 16 their own development strategies in order to create thei...

This thesis work is mainly motivated to solve the stereo correspondence problem. As solving the correspondence problem could result a precise disparity map allowing the interpolation of intermediate views in 3DTV, the disparity map estimation receives nowadays constant research interests by lots researchers worldwide. According to the state-of-art, the colour segmentation-based stereo matching ...