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Reconstruction and Prediction from Three Images of Uncalibrated Cameras

This paper deals with the problem of reconstructing the locations of a number of points in space from three different images taken by uncalibrated cameras. It is assumed that the correspondences between the points in the different images are known. In the case of six points this paper shows that there are in general three solutions to the problem of determining the shape of the object, but some of

Plant-soil-herbivore interactions in a high Arctic wetland - Feedbacks to the carbon cycle

Popular Abstract in Danish Omkring halvdelen af den globale kulstof mængde som findes i jorden, er lagret i de arktiske jorde. Arktiske jorde har været anset for at være vigtige kulstof reservoirs de sidste 10.000 år, hvor der bliver optaget mere kulstof end der frigives. Dette skyldes blandt andet den langsomme omsætning af organiske materiale på grund af de kolde forhold, men også de store mængdArctic ecosystems hold massive amounts of the global carbon in their soils and are of great importance for the global terrestrial exchange of greenhouse gases to the atmosphere. The arctic region has in general been acting as a C sink for the past 10000 years, however with climate change the C balance in some areas is shifting towards becoming a C source. Herbivory are an important part of many ec

Erfarenheter av GIS i samband med Stormen Gudrun.

Detta informationsblad syftar till att förmedla resultat som kan vara av betydelse för kommuners och andra aktörers användning av GIS i kris. Innehållet bygger på intervjuer med tjänstemän från tre kommuner och en länsstyrelse som har erfarenheter av tillämpningar av GIS i samband med stormen Gudrun. Det är således en sammanfattning av den kunskap som redan finns hos många kommuner och som är värd

Ego-Motion Recovery and Robust Tilt Estimation for Planar Motion Using Several Homographies

In this paper we suggest an improvement to a recent algorithm for estimating the pose and ego-motion of a camera which is constrained to planar motion at a constant height above the floor, with a constant tilt. Such motion is common in robotics applications where a camera is mounted onto a mobile platform and directed towards the floor. Due to the planar nature of the scene, images taken with such

Passive houses in Sweden - Experiences from design and construction

The sector of residential buildings and service organizations uses 36% of the total energy in Sweden. In June 2006, it was decided by the Swedish parliament that the energy use in residential buildings and premises should decrease by 20% per heated unit area before 2020. To reach this goal, more energy efficient buildings must be produced as well as energy efficient improvements must be performed