Praca Dyplomowa - Photogrammetry and Remote Sensing - AGH
Praca Dyplomowa - Photogrammetry and Remote Sensing - AGH
Praca Dyplomowa - Photogrammetry and Remote Sensing - AGH
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EXPERIMENT<br />
� Tripod<br />
For image recording tripod for the camera was always used, to reduce blur of applied long<br />
exposure time. Shutter time was also set for 0,5sec, to avoid camera movements <strong>and</strong> then blur<br />
while touching the camera.<br />
The best pictures were taken, with additional lights <strong>and</strong> without flash <strong>and</strong> these were chosen<br />
for processing. In PhotoModeler Scanner a few photos with dust were used as well, to<br />
compare the results. Figure 4.1 illustrates one of the photographs taken during image<br />
acquisition. It is possible to see that the photo is quite good; but it was not possible to avoid<br />
reflectiveness of shiny material <strong>and</strong> some pixels are “lost” (too bright, sometimes too dark).<br />
Additional control point around <strong>and</strong> on the sculpture were used for better bundle adjustment<br />
results. There was also scale bar to be able to scale the project. After all, a lot of images have<br />
been recorded <strong>and</strong> some of them may be found in folder: Canon\Photos including photographs<br />
for camera calibration.<br />
Figure 4.1 Photograph from image acquisition<br />
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