نتایج جستجو برای: digital terrain model

تعداد نتایج: 2369560  

2002
Zuxun Zhang Shunyi Zheng Jianqing Zhang

Landscape after construction of traffic line plays an important role in evaluating the visual effect of designed traffic line and the suitability of plan and vertical designs. This paper presents a method to create the overall three-dimension model combined by both the virtual traffic line model and around photo-realistic terrain model. In the overall three-dimension model, the traffic line mod...

2002
L. Hashemi A. Azizi M. H. Hashemi

This research work is concerned with the implementation of a shape from shading (SFS) technique for automatically generating a digital terrain model (DTM) using a single digitized aerial photograph of a terrain area with low signal (information) content. The mathematical model for the SFS is established based on the fact that the pixel’s gray level variations in image space are proportional to ...

ژورنال: علوم آب و خاک 2013
اعظم جعفری, , حسین خادمی, , شمس الله ایوبی, ,

Digital soil mapping includes soils, spatial prediction and their properties based on the relationship with covariates. This study was designed for digital soil mapping using binary logistic regression and boosted regression tree in Zarand region of Kerman. A stratified sampling scheme was adopted for the 90,000 ha area based on which, 123 soil profiles were described. In both approaches, the o...

2000
ECKART LANGE

Communicating planning results within expert groups or to local citizens is crucial for the planning process to be efficient. Although 2-dimensional representations are still predominantly used in spatial planning, recently digital 3Dvisualizations have become more common. However, the validation of simulations of virtual landscapes regarding their degree of realism has so far been neglected in...

2002
Alastair W. Pearson

It is generally accepted that the three-dimensional nature of the digital terrain model enhances our visualization of surfaces. Modern techniques enable a detailed landscape to be constructed as a facsimile of reality that provides an opportunity to move through or fly over the landscape. Given these benefits, it is little surprise that simulations using digital terrain models are employed as e...

Journal: :Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 2014

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید