An approach for the reconstruction of a building from manual measurements in a single image and a priori object information is described. The image is taken with an uncalibrated camera. Parallelism and perpendicularity of facades and building edges are examples of the object information that makes reconstruction and camera calibration from a single image possible. The reconstruction results in ...

A novel method of image-based map building and navigation is proposed for future planetary rovers. The proposed map is not a usual height map, but consists of several images of landmarks connected by the required rover actions from the rover position and orientation from which one of the landmark image is obtained to the position and orientation where another landmark image is obtained. This is...

The goal of this paper is to extract automatically the building contours regardless of shape. By extracting these contours, detection results will be more accurate, giving useful information about urban area, which is important for many tasks, like map updating and disaster management. First, we extract local feature points from the image, based on a modification of Harris detector’s saliency f...

Reconstruction from images has become a popular and inexpensive method of building 3D scenes. For this method to work, one has to determine the position and orientation of the camera at which the images where taken. Although the camera orientation can be done fully automatically, the results are sometimes inaccurate and incomplete. These problems can be solved by manual interactions. We present...

Difficulty in interpreting and using spatial information from You-Are-Here maps (YAH maps specify a viewer’s location and orientation) stems from a misalignment between one’s physical orientation and the map’s orientation. The current research investigates the relationship between the participant’s physical location and orientation in accurately placing the location and orientation of another i...

Our visual attention is attracted by salient stimuli in our environment and affected by primitive features such as orientation, color, and motion. Perceptual saliency due to orientation contrast has been extensively demonstrated in behavioral experiments with humans and other primates and is believed to be facilitated by the functional organization of the primary visual cortex. In behavioral ex...

This study analyzes the solar potential on roofs of residential buildings in the city of Hamburg as a function of the city's settlement genetic characteristics. Hamburg's solar cadaster is critically evaluated with regard to rooftops, building, and settlement types as well as building orientation. Based on building ground plans, building and settlement types are calculated using geometric and g...

Background and Objectives: Public-Private Partnership (PPP) is a well-established model to alleviate the risk of investment in health domain. While the model is widely applied in the developed countries, the adoption of the model in many developing countries is hampered partly by the lack of knowledge on dimensions and requirements of its local implementation. The present study...

Conventional marketing wisdom holds that a customer orientation provides a firm with a better understanding of its customers, which subsequently leads to enhanced customer satisfaction and firm performance. However, there are cautions that being too customer focused can lead to inertia, and anecdotal evidence suggests that it may be better to "ignore your customer" when developing new products....