Some applications such as the autonomous navigation in natural terrain and the automation of map making process require high-level scene descriptions as well as geometrical representation of the natural terrain environments. In this paper, we present methods for building high level terrain descriptions, referred as topographic maps, by extracting terrain features like "peaks", "pits", "ridges",...

the dedicated satellite mission goce will sense various small mass variations along its path around the earth. here we study the effect of the earth’s topography and atmosphere on goce data. the effects depend on the magnitude of topographic height, and they will therefore vary by region. as the effect of the atmosphere and topography must be removed from the total gravity anomaly prior to geoi...

............................................................................................................................................... 4 Introduction .......................................................................................................................................... 4 The Grounded Theory Method..........................................................................

Computer-assisted qualitative data analysis software (CAQDAS) is a well-known acronym in qualitative research. Nowadays, qualitative researchers are inclined to apply such software for various purposes. Critiques of the use of CAQDAS in qualitative research focus on the term “analysis”, claiming that that the tool does little to analyze data. According to these critiques, some users of CAQDAS a...

Use of the grounded theory research method (GTM) is increasing across many fields of inquiry. Understanding the GTM and how to apply it is therefore a key task for researchers examining the possibility of using this method in their research. Since its introduction by Glaser and Strauss in 1967, GTM has evolved into two major streams, and there has been a continual debate about the choice betwee...

ion over analog and new model Spawning of adaptation goals Adaptation strategy 1 SBF model of GTM Adaptation strategy n Adaptation goal GTM Evaluation of new model Retrieval of GTMs Instantiation of GTMs Composition of behaviors Analog Analogical transfer New model New model GTM Figure 3. Model-based analogy in Ideal. .

A b s t r a c t .

Stereo vision is important m determining three-dimensional positions of tile visible surfaces in images. Most existing stereo matching methods involve matching low-level image features such as edges. A stereo matching technique based on matching high-level image features is described in this paper. The high-level image features extracted are topographic structures, arc segments and region segme...