Perceived quality assessment in object-space for animated 3D models
Author
Yakut, Işıl Doğa
Advisor
Çapın, Tolga
Date
2012Publisher
Bilkent University
Language
English
Type
ThesisItem Usage Stats
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Abstract
Computational models and methods to handle 3D graphics objects continue to
emerge with the wide-range use of 3D models and rapid development of computer
graphics technology. Many 3D model modification methods exist to improve
computation and transfer time of 3D models in real-time computer graphics
applications. Providing user with the least visually-deformed model is essential
for 3D modification tasks.
In this thesis, we propose a method to estimate the visually perceived differences
on animated 3D models. The model makes use of Human Visual System models
to mimic visual perception. It can also be used to generate a 3D sensitivity map
for a model to act as a guide during the application of modifications.
Our approach gives a perceived quality measure using 3D geometric representation
by incorporating two factors of Human Visual System (HVS) that contribute
to perception of differences. First, spatial processing of human vision model
enables us to predict deformations on the surface. Secondly, temporal effects of
animation velocity are predicted. Psychophysical experiment data is used for both
of these HVS models. We used subjective experiments to verify the validity of
our proposed method.
Keywords
Applied Perceptual Computer GraphicsQuality Evaluation for 3D Model
Animated 3D Models
Computational Geometry