نتایج جستجو برای: digital photogrammetry
تعداد نتایج: 311288 فیلتر نتایج به سال:
Digital panoramic cameras have found growing interest in photogrammetry in the past few years. Originally primarily being used for purposes such as web-based animation or surveillance, panoramic cameras have meanwhile reached a performance, which makes them an interesting data acquisition tool for a number of applications in photogrammetry. New developments in sensor technology have enabled the...
Of all tasks in photogrammetry the extraction of cartographic features is the most time consuming. Since the introduction of digital photogrammetry much attention therefore has been paid to the development of tools for a more efficient acquisition of cartographic features. Fully automatic acquisition of features like roads and buildings, however, appears to be very difficult and may even be imp...
This paper describes how we could combine the two most available systems for the purpose of surveying and documenting the architectural heritage, historical buildings and monuments. The two systems are digital photogrammetry (applied in a close-range context) and CAD. The product of this integration is a 3-D GIS application. In this application, close-range photogrammetry is used for the acquis...
Internet offers a new direction for software development and also for photogrammetry. The affordable commercial digital cameras are widely available and their geometrical resolution is good enough to perform photogrammetric measurements. Seeing this, a widely accessible, web based photogrammetry application could be a new development direction for photogrammetry. For photogrammetric calculation...
A Photogrammetric Method for the Assessment of Facial Morphology in Fetal Alcohol Syndrome Screening
Photogrammetry has been introduced as an alternative to direct measurements to obtain facial distances for a variety of anthropometric applications. We apply photogrammetry to assist in the screening of children for Fetal Alcohol Syndrome (FAS). We have developed a stereo-photogrammetric image acquisition platform to obtain digital photographs of 6 to 7 year-old children, and image processing a...
We describe an innovative system designed for museums to create, manage and present multimedia based representations of museum artefacts in virtual exhibitions both inside and outside museums. Our system creates digital surrogates through a novel stereo photogrammetry system with little user interaction. The resulting 3D objects are refined using state-of-the-art 3D modelling software configure...
Photogrammetron represents a class of intelligent photogrammetric systems aiming at realizing a number of newly defined functionalities of intelligent photogrammetry that go beyond the traditional photogrammetry and the currently dominant digital one, including real-time photogrammetry in video surveillance, photogrammetry-enabled robots, intelligent multi-camera network for close-range photogr...
Network orientation is a fundamental step in image-based 3D measurement. This paper aims to offer insights into network orientation by considering developments in analytical close-range photogrammetry during its evolution from a film-based to digital image-based measurement technology suited to full process automation. A brief mathematical background to orientation models derived via perspectiv...
Aerial photogrammetry is one of the main methods obtaining geospatial information. After entering the 21st century, aerial photogrammetry technology has fully entered the digital age, and the quality of digital aerial photography results will directly affect the quality and accuracy of results of surveying and mapping .Therefore, it is necessary to inspect the quality of digital aerial photogra...
Airborne digital sensors are about to widen the choices in photogrammetry. The transition from analytical to digital photogrammetry is well advanced and the dividing lines between photogrammetry and remote sensing grow increasingly blurred. One of the advantages of direct digital data capture in the air is the possibility of capturing multispectral data as well as panchromatic. Positioned betwe...
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