نتایج جستجو برای: digital photogrammetry

تعداد نتایج: 311288  

2006
A. Guarnieri F. Remondino A. Vettore

A great number of papers have been so far published about the comparison and the integration between terrestrial laser scanning and digital photogrammetry, as surveying and 3D modeling techniques. Though most of the works report about their application to Cultural Heritage, achieved results have shown that these two technologies can supplement each other in creating high-quality 3D recordings a...

2000
Andreas ECKARDT Bernhard BRAUNECKER Rainer SANDAU

The LH Systems ADS40 airborne digital sensor fulfils photogrammetric and remote sensing requirements. The new sensor is not only a camera to acquire attractive pictures: it is the next fully digital generation of measurement device for airborne photogrammetry and remote sensing. The accuracy of the lens and focal plane system under flight conditions (pressure and temperature) is described and a...

Journal: :Remote Sensing 2011
Kazuya Nakano Hirofumi Chikatsu

With the appearance of low-cost and high-resolution consumer-grade digital cameras, a practical three-dimensional (3D) measurement system using a consumer-grade digital camera is greatly anticipated in various fields. In these circumstances, the authors have been concentrating on developing a practical 3D measurement system that includes photogrammetric software called the Image Based Integrate...

2016
Rodrigo Salazar-Gamarra Rosemary Seelaus Jorge Vicente Lopes da Silva Airton Moreira da Silva Luciano Lauria Dib

PURPOSE The aim of this study is to present the development of a new technique to obtain 3D models using photogrammetry by a mobile device and free software, as a method for making digital facial impressions of patients with maxillofacial defects for the final purpose of 3D printing of facial prostheses. METHODS With the use of a mobile device, free software and a photo capture protocol, 2D c...

2002
Karsten Jacobsen

The photogrammetry has used the general development of the technique for its own purpose. It started with the analogue, continued with the analytical and reached now the digital methods. Digital systems do now allow a high degree of automation. With the digital possibilities in imaging and processing together with automation, we are not far away from on-line generation of ortho images. The inte...

ژورنال: علوم آب و خاک 2009
بونر, کریستینا, قضاوی, غلامرضا, قوی, استفان, میرزایی, محمدرضا,

At present, soil surface characteristics (SSC) are recognised as key parameters controlling infiltration rates, runoff generation and erosion. Microtopography of surface among SSC is the main one. The work presented in this paper is based on a set of digital elevation models (DEMs) supplied by two different methods: Laser roughness-meter and photogrammetry method. We used two maquettes. The use...

Journal: :Remote Sensing 2009
Eija Honkavaara Román Arbiol Lauri Markelin Lucas Martínez Michael Cramer Stéphane Bovet Laure Chandelier Risto Ilves Sascha Klonus Paul Marshal Daniel Schläpfer Mark Tabor Christian Thom Nikolaj Veje

The transition from film imaging to digital imaging in photogrammetric data capture is opening interesting possibilities for photogrammetric processes. A great advantage of digital sensors is their radiometric potential. This article presents a state-of-the-art review on the radiometric aspects of digital photogrammetric images. The analysis is based on a literature research and a questionnaire...

1997
Volker Rodehorst

The use of digital image analysis in architectural photogrammetry allows the automation of monotonous low-level tasks and makes the interpretation of facades much easier. Different segmentation methods for a computer assisted mapping of joint contours are discussed. Exemplary the application of the watershed transform is described and a combined watershedmethod will be presented, which is well ...

Journal: :Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography 2014

Journal: :GeoInformatica 2007
Xiaoye Liu Zhenyu Zhang Jim Peterson Shobhit Chandra

Orthophotos (or orthoimages if in digital form) have long been recognised as a supplement or alternative to standard maps. The increasing applications of orthoimages require efforts to ensure the accuracy of produced orthoimages. As digital photogrammetry technology has reached a stage of relative maturity and stability, the availability of high quality ground control points (GCPs) and digital ...

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