Sökning: "photogrammetry"

Visar resultat 6 - 10 av 21 avhandlingar innehållade ordet photogrammetry.

1. 6. Prediction as a Knowledge Representation Problem : A Case Study in Model Design

   Författare :Patrik Haslum; Patrick Doherty; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; WITAS; Unmanned irial Vehicle UAV ; helicopter; traffic surveillance; remote photogrammetry; Computer science; Datavetenskap;

   Sammanfattning : The WITAS project aims to develop technologies to enable an Unmanned Airial Vehicle (UAV) to operate autonomously and intelligently, in applications such as traffic surveillance and remote photogrammetry. Many of the necessary control and reasoning tasks, e.g. LÄS MER

3. 7. Cryogenic soil processes in a changing climate

   Författare :Marina Becher; Jonatan Klaminder; Johan Olofsson; Jan Karlsson; Niclas Börlin; Philip Wookey; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Non-sorted circle; Carbon storage; Soil motion; Terrestrial photogrammetry; Cryoturbation; Carbon fluxes; naturgeografi; Physical Geography;

   Sammanfattning : A considerable part of the global pool of terrestrial carbon is stored in high latitude soils. In these soils, repeated cycles of freezing and thawing creates soil motion (cryoturbation) that in combination with other cryogenic disturbance processes may play a profound role in controlling the carbon balance of the arctic soil. LÄS MER

4. 8. Chronic lateral instability of the ankle joint : natural course, pathophysiology and steroradiographic evaluation of conservative and surgical treatment

   Författare :Richard Löfvenberg; Per Renström; Umeå universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Ankle-Joint-Instability; Kinematics; Ligament; Osteoarthritis; Orthosis; Proprioception; Radiology; Reaction time; Stereo-Photogrammetry; Subtalar; Surgery;

   Sammanfattning : Chronic lateral instability of the ankle (CLI), defined as frequent sprains and recurrent giving way, difficulty in walking and running on uneven surface, is often connected with pain and swollen ankles. It occurs in 10 to 20 percent after acute ankle injuries. LÄS MER

5. 9. The Impact of Fracture Geometry on the Hydromechanical Behaviour of Crystalline Rock

   Författare :Johan Thörn; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Laboratory experiments; Fracture aperture; In situ experiments; Conceptual model; Äspö HRL; Fracture geometry; Stereo photogrammetry; Hydromechanical coupling; Fracture normal stiffness;

   Sammanfattning : Effective construction of tunnels in fractured crystalline rock requires a unified approach for handling rock mechanics and hydrogeological issues. Traditionally, rock mechanics and hydrogeology not only use different nomenclature, they also measure parameters such as e.g. aperture differently. LÄS MER

7. 10. Novel methods for 3-D semi-automatic mapping of fracture geometry at exposed rock faces

   Författare :Quanhong Feng; KTH; []
   Nyckelord :3-D laser scanner; close-range photogrammetry; engineering geology; fracture geometry; fracture mapping; rock engineering; rock faces; rock mechanics; three-dimension; total station;

   Sammanfattning : To analyse the influence of fractures on hydraulic andmechanical behaviour of fractured rock masses, it is essentialto characterise fracture geometry at exposed rock faces. Thisthesis describes three semi-automatic methods for measuring andquantifying geometrical parameters of fractures, and aims tooffer a novel approach to the traditional mapping methods. LÄS MER