Hyperspektrikuvantaminen fotometrisessä stereossa ja sen hyödyntäminen tietokonegrafiikassa
Tässä tutkielmassa tutkitaan hyperspektrikuvien avulla toteutetun fotometrisen
stereon vaikutuksia tietokonegrafiikassa. Tutkimuksessa hyperspektrikuvien ja fotometrisen
stereon avulla luotiin malleja, joista edelleen renderöitiin kuvia. Hyperspektrikuvantamisen
havaittiin parantavan renderöinnin kuvanlaatua hieman, mutta heikentävän sen suorituskykyä
kymmenkertaisesti. Lisäksi tutkittiin mallien luomisen nopeuttamista rinnakkaislaskennan
avulla. Tuloksena pintojen muotojen määrittäminen pintojen orientaatioiden avulla saatiin
grafiikkasuorittimella yli 13-kertaisesti nopeammaksi. In this thesis the effects of photometric stereo implemented using hyperspectral images in computer graphics are studied. In the study hyperspectral images and photometric stereo was used to create models that were further rendered into images. It was observed that hyperspectral imaging slightly improved the image quality of the rendering but decreased its performance by a factor of ten. Additionally it was studied how the model creation can be accelerated using parallel computing. As a result resolving surface shapes from surface orientations got more than 13 times as fast when a graphics processing unit was used.
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- Pro gradu -tutkielmat [28152]
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