TY - JOUR
T1 - Visual space-time geometry - A tool for perception and the imagination
JF - Proceedings of the IEEE
Y1 - 2002
A1 - FermÃ¼ller, Cornelia
A1 - Baker, P.
A1 - Aloimonos, J.
KW - 3-D motion estimation
KW - Buildings
KW - Computer vision
KW - Geometry
KW - Graphics
KW - Image sequences
KW - Layout
KW - Mathematical model
KW - mathematical theory
KW - model building
KW - Motion estimation
KW - multiple view geometry
KW - multiple views
KW - Navigation
KW - optical flow
KW - optical illusions
KW - patch correspondence
KW - Rendering (computer graphics)
KW - Robotics and automation
KW - Solid modeling
KW - structure from motion
KW - three-dimensional models
KW - visual space-time
AB - Although the fundamental ideas underlying research efforts in the field of computer vision have not radically changed in the past two decades, there has been a transformation in the way work in this field is conducted. This is primarily due to the emergence of a number of tools, of both a practical and a theoretical nature. One such tool, celebrated throughout the nineties, is the geometry of visual space-time. It is known under a variety of headings, such as multiple view geometry, structure from motion, and model building. It is a mathematical theory relating multiple views (images) of a scene taken at different viewpoints to three-dimensional models of the (possibly dynamic) scene. This mathematical theory gave rise to algorithms that take as input images (or video) and provide as output a model of the scene. Such algorithms are one of the biggest successes of the field and they have many applications in other disciplines, such as graphics (image-based rendering, motion capture) and robotics (navigation). One of the difficulties, however is that the current tools cannot yet be fully automated, and they do not provide very accurate results. More research is required for automation and high precision. During the past few years we have investigated a number of basic questions underlying the structure from motion problem. Our investigations resulted in a small number of principles that characterize the problem. These principles, which give rise to automatic procedures and point to new avenues for studying the next level of the structure from motion problem, are the subject of this paper.
VL - 90
SN - 0018-9219
CP - 7
M3 - 10.1109/JPROC.2002.801440
ER -