Title :
Least squares estimation of 3D shape and motion of rigid objects from their orthographic projections
Author :
Xirouhakis, Yiannis ; Delopoulos, Anastasios
Author_Institution :
Dept. of Comput. & Electr. Eng., Nat. Tech. Univ. of Athens, Greece
fDate :
4/1/2000 12:00:00 AM
Abstract :
The extraction of motion and shape information of three-dimensional objects from their two-dimensional projections is a task that emerges in various applications such as computer vision, biomedical engineering, and video coding and mining especially after the recent guidelines of the Motion Pictures Expert Group regarding MPEG-4 and MPEG-7 standards. Present work establishes a novel approach for extracting the motion and shape parameters of a rigid three-dimensional object on the basis of its orthographic projections and the associated motion field. Experimental results have been included to verify the theoretical analysis
Keywords :
image motion analysis; least squares approximations; 2D projections; 3D shape estimation; MPEG-4; MPEG-7; biomedical engineering; computer vision; least squares estimation; mining; motion estimation; orthographic projections; rigid objects; video coding; Application software; Biomedical engineering; Computer vision; Data mining; Guidelines; Least squares approximation; MPEG 4 Standard; Motion pictures; Shape; Video coding;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
