Photogrrammetry

INTRODUCTION TO SINGLE IMAGE PHOTOGRAMMETRY

Combining modern scene analysis with traditional geometry enables valuable information on sizes and distances to be obtained from video images. These techniques replace potentially misleading subjective interpretation with objective analysis. With practice and correct application, these techniques can be a powerful tool to assist police video technicians to extract the maximum amount of information from video evidence. Applying the principles of perspective geometry to an image to obtain dimensional information is termed photogrammetry. These principles have been known about for centuries and were first successfully applied by 15th Century Renaissance artists, such as Leonardo De Vinci, to ensure objects were realistically represented in their paintings. Photogrammetry became regarded as a respected scientific discipline a few centuries later with the analysis of aerial photographs first captured by Wilbur Wright.

ETIOLOGY

The cause of delirium differ for persons in the community and those hospitalized for a medical illness. In the hospital setting, delirium generally occurs in patients with predisposing... ..