نتایج جستجو برای: range photogrammetric networks

تعداد نتایج: 1072454  

2012
Junichi Koseki Ryuji Matsuoka Kojiro Hirai Takeshi Yamamoto

This paper describes analytical and digital photogrammetric methods of a stereo pair of scanning electron microscope (SEM) photographs. Analytical method was applied to a triplet of stereo SEM photographs of an impression left by the diamond indenter of Vicker's hardness tester. The height error of the three dimensional measurement was ±5% and the precision is sufficient for surface shape analy...

1999
Eberhard Gülch Hardo Müller Thomas Läbe

The modeling of three-dimensional objects is a current topic in digital photogrammetric research. The modeling of buildings in digital imagery or digital surface models involving automation processes has reached a level where it can compete with classical photogrammetric stereo measurements. There are many different ways on how to integrate automation. We describe our system and its automated f...

2001
G. E. Karras

The massive introduction of modern digital photogrammetric workstations into routine mapping activities has obviously changed the tools and context of photogrammetric practice. Notably, DEM generation by image matching has become a standard softcopy photogrammetric technique. Énevitably, however, new questions have also arisen, often perplexing users, regarding geometric accuracy and success ra...

2010
F. Leberl

Novel automated photogrammetry is based on four innovations. First is the cost-free increase of overlap between images when sensing digitally. Second is an improved radiometry. Third is multi-view matching. Fourth is the Graphics Processing Unit (GPU), making complex algorithms for image matching very practical. These innovations lead to improved automation of the photogrammetric workflow so th...

2010
Ino Papageorgaki Sevi Tapinaki Andreas Georgopoulos Charalambos Ioannidis

In this paper an alternative method for measuring the Classic Marathon Course using photogrammetric methodology is presented and examined. The course is surveyed in stereoscopic environment and therefore the measurement is performed directly in 3D space. The produced elevation data after the processing procedure are presented in the section plan at a scale of 1:5.000. The Digital Surface Model,...

1998
Sabry F. El-Hakim Claus Brenner Gerhard Roth

Creating virtual environment models often requires geometric data from range sensors as well as photometric data from CCD cameras. The model must be geometrically correct, visually realistic, and small enough in size to allow real-time rendering. We present an approach based on 3D range sensor data, multiple CCD cameras, and a colour high-resolution digital still camera. The multiple CCD camera...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم پایه 1391

بر اساس پخش و پراکندگی چینه شناسی روزنبران پلانکتونیک شناسایی شده از برش مورد پژوهش 9 بیوزون شناسایی و معرفی شد که منطبق با بایوزون های استاندارد جهانی در قلمرو تتیس بوده و به ترتیب ازپایین به بالا شامل : بیوزون 1)dicarinella concavata interval zone (سانتونین پسین) بیوزون 2) dicarinella asymetrica total range zone ( کامپانین میانی) بیوزون 3) globotruncanita elevata interval zone ( کامپانین پ...

2010
H. J. Theiss

NGA uses the Compass software to perform relative measurements on images, usually taken at relatively close range from hand-held cameras. Compass currently does not have the capability to calculate a confidence interval around its computed relative measurements. This paper provides some results with both simulated and real data to illustrate how the matrix algebra associated with a photogrammet...

Journal: :European journal of orthodontics 2009
Siddik Malkoç Abdullah Demir Tancan Uysal Naci Canbuldu

One of the most important components of orthodontic diagnosis and treatment planning is the evaluation of the patient's soft tissue profile. The aim of this study was to develop angular photogrammetric standards for Class I Anatolian Turkish males and females. A random sample of 100 Turkish individuals (46 males and 54 females; ages 19-25 years) was obtained. The photographic set-up consisted o...

1997
Hans-Gerd Maas

Today’s developments in industrial robots focus on aims like gain of flexibility, improvement of the interaction between robots and reduction of down-times. A very important method to achieve these goals are off-line programming techniques. In contrast to conventional teach-in robot programming techniques, where sequences of actions are defined step-by-step via remote control on the real object...

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