# 16.2.3 Motion Estimates Using 4 Frames

Chapter Contents (Back)
Motion, Four Frames.

Shariat, H., and Price, K.E.,
Motion Estimation: The Proper Formulation for when 3 or 4 Frames Are Available,
CVPR86(396-399). BibRef 8600 USC Computer VisionEquations and the general description. BibRef

Webb, J.A.[Jon A.], Aggarwal, J.K.,
Structure from Motion of Rigid and Jointed Objects,
AI(19), No. 1, September 1982, pp. 107-130.
Elsevier DOI BibRef 8209
Earlier: IJCAI81(686-691). BibRef
Earlier:
Static Analysis Of Moving Jointed Objects,
AAAI-80(35-37). BibRef
And:
Observing Jointed Objects,
ICPR80(1246-1250). Motion, Structure. Moving Light Displays. Assuming a parallel projection, derive nonlinear equations and solve with real data motion parameters for 2 points in 4 or more images. The basic idea starts out the same as Shariat (
See also Motion Estimation With More Than Two Frames. ), but the parallel projection "ruins" it. BibRef

Webb, J.A.[Jon A.],
Shape and Structure from Motion of Objects,
Ph.D.Thesis, December 1981, BibRef 8112 Univ. of Texas BibRef

Webb, J.A.[Jon A.], Aggarwal, J.K.,
Visually Interpreting the Motion of Objects in Space,
Computer(14), No. 8, August 1981, pp. 40-46. BibRef 8108
Earlier:
Visual Interpretation of the Motion of Objects in Space,
PRIP81(516-521). From the x-y position of points over time generate the complete 3-D positional information. Assumes rigid motions and assume each motion has a fixed axis.
See also Lights: A System for the Interpretation of Moving Light Displays. BibRef

Åström, K.[Kalle], Heyden, A.[Anders],
Multilinear Forms in the Velocity Case,
CVPR96(833-838).
IEEE DOI Continuous motions, at the limit of analysis. BibRef 9600

Berthilsson, R.[Rikard], and Heyden, A.[Anders],
Linear Reconstruction from Dual Multilinear Constraints,
SSAB96(xx). 6 points, 4 images. Linear solution. For more use subsets. BibRef 9600

Heyden, A.[Anders],
Reconstruction from Image Streams: Continuous Multilinear Constraints,
SSAB96(xx). Generalizing trilinear constraints. BibRef 9600

Chapter on Motion -- Feature-Based, Long Range, Motion and Structure Estimates, Tracking, Surveillance, Activities continues in
Motion Estimates Using 5 or More Frames .

Last update:Aug 28, 2024 at 16:02:19