Documentation for Video/Perceptual3DShape

Technique Perceptual 3D Shape Descriptor
Document MPEG-7 Visual (ISO/IEC 15938-3)
Name In Kyu Park, Hui Zhang, (Multimedia Lab, Samsung Advanced Institute of Technology)
EMail saitpik@sait.samsung.co.kr, hui.zhang@samsung.com
Type Application
External Libraries cv.lib(intel OpenCV) qhull.lib(Geometry Center)
Related Ds/DSs 3D Shape Spectrum Descriptor
Used Ds/DSs NONE
Input 3D Meshes in VRML2.0 format
Extraction Yes
Client Appl Search & Retrieval
Summary The Perceptual 3D Shape Descriptor provides a compact shape description of 3D data represented as 3D meshes.
The Perceptual 3D Shape Descriptor is generated from the part-based representation. It has the form of
an attributed relational graph (ARG), composed of nodes and edges. A node represents a meaningful part
of the model with unary attributes, while an edge implies binary relations between nodes.
Strong Points Compactness
Limitations NONE
Known Problems NONE
Parameters bits_per_attribute: the number of bits used for quantizing the descriptor values. Default value is 8 bits.