Digital terrain models (DTM) have been used in soil mapping worldwide. When using such models, improved predictions are often attained with the input of extra variables provided by the use of proximal sensors, such as magnetometers and portable X-ray fluorescence scanners (pXRF). This work aimed to evaluate the efficiency of such tools for mapping soil classes and properties in tropical conditi...

This article presents a review of the combined analysis of digital terrain models (DTMs) and remotely sensed data in landscape investigations. The utilization of remotely sensed data with DTMs has become an important trend in geomatics in the past two decades. Models of more than ten quantitative topographic variables are employed as ancillary data in the treatment of images. The article review...

in chemical engineering, several processes are represented by singular boundary value problems. in general, classical numerical methods fail to produce good approximations for the singular boundary value problems. in this paper, chebyshev finite difference (chfd) method and dtm-pad´e method, which is a combination of differential transform method (dtm) and pad´e approximant, are applied for sol...

Tree detection using aerial sensors in early decades was focused by many researchers in different fields including Remote Sensing and Photogrammetry. This paper is intended to detect trees in complex city areas using aerial imagery and laser scanning data. Our methodology is a hierarchal unsupervised method consists of some primitive operations. This method could be divided into three sections,...

Abstract. Aerial laser scanners find rapidly growing interest in photogrammetry and remote sensing as an efficient tool for reliable three-dimensional extraction modelling of forest inventory information. In addition to interactive measurements 3D point clouds, techniques automatic objects determination geometric parameters form a high important research issues (Maas, Bienert et al. 2008). This...

The DTM host/network adapter uses a dual-ported shared buffer memory on the interface board as in the Van Jacobson “Witless” interface [9]. The host operating system, SunOS, performs all protocol processing in the shared buffer memory and can therefore minimize the number of times data have to be transferred over the host system bus. We give an overview of the DTM host/network adapter hardware ...

This note reports the combined results of several initiatives in creating and surveying complete suites of endgame tables (EGTs) to the Depth to Mate (DTM) and Depth to Conversion (DTC) metrics. Data on percentage results, maximals and mutual zugzwangs, mzugs, has been filed and made available on the web, as have the DTM EGTs.

We examine the utility of Structure from Motion (SfM) point cloud products to generate a digital terrain model (DTM) and estimate canopy heights in a woodland ecosystem in the Texas Hill Country, USA. Very high spatial resolution images were acquired with a Canon PowerShot A800 digital camera mounted on an unmanned aerial system. Image mosaicking and dense point matching were accomplished using...

Abstract The software for processing the photogrammetry is increasingly capable of producing a high-quality 3D model DEM, DSM, and DTM from an aerial photo measuring volume material. Nowadays, UAV technology has been rapidly used stockpile calculation mining construction industry. purpose this study to compare image using three different with conventional method GPS as reference. result obtaine...

With the growing interest in using distributed task migration algorithms for dynamic thermal management (DTM) in multi-core chips comes the challenge of their rigorous verification. Traditional analysis techniques, like simulation and emulation, cannot cope with the design complexity and distributed nature of such algorithms and thus compromise on the rigor and accuracy of the analysis results....