First, the Map Alignment stage, in which the transformation between pairs of local maps is computed. Then, in the Map Merging stage, the data from each local map is fused into a unique map. Particularly, we use the RANSAC method in order to perform the alignment between maps. Then, in ...
Our framework utilizes safe trajectory information generated by the troop control center by considering identifiable landmarks and pre-defined hazard maps. It performs point inclusion tests on the convex hull of the trajectory segments to ensure the safety and survivability of a moving entity and ...
From these data, and from background pictorial information, such as maps, landmarks and unsafe areas, the operator can determine the appropriate command in response to a developing situation. The operator can communicate the surveillance ... WC Morchin,SL Johnston 被引量: 14发表: 1991年 Altern...
In addition, the system includes images of each landmark helping users to navigate visually in addition to through textual instructions and route maps. The system runs on a mobile device; the users use the device's camera to register each landmark's QR code and so update their position (...
Like honeybees (F. C. Dyer, 1991), humans do not appear to derive accurate cognitive maps from path integration to guide navigation but, instead, depend on landmarks when they are available. Keywords: human navigation, virtual reality, path integration, visual landmarks 展开 ...
The similarity of two point maps is computed as the distance between the corresponding rotated histograms to achieve rotation invariance. Histogram rotation is enabled by efficient orientation histogram based on sphere cubical projection. The performance of GLAROT has been assessed through experiments ...
2.3 Grid map In grid maps, environments are decomposed into a collection of uniform grid cells. This uniform grid includes both free space and obstacles. Each cell contains a value stating whether a...
Feature-based method for detecting landmarks from facial images was designed. The method was based on extracting oriented edges and constructing edge maps at two resolution levels. Edge regions with characteristic edge pattern formed landmark candidates. The method ensured invariance to expressions while...
For brain diseases, e.g., autism spectrum disorder (ASD), with unclear biological characteristics, the detection of imaging-based biomarkers is a critical task for diagnosis. Several landmark-based categorization approaches have been developed for the co
each pixel one class amongN+ 1 classes: either the type of a landmark or the background. This first step will be used to build a probability map for each of the landmarks. These probability maps will be refined into a small number of candidates for each landmark by using landmark ...