Results 251 to 260 of about 256,314 (295)
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Biological Cybernetics, 1987
We employ an optimal solution to both the "shape from motion problem" and the related problem of the estimation of self-movement on a purely optical basis to deduce practical rules of thumb for the limits of the optic flow information content in the presence of perturbation of the motion parallax field. The results are illustrated and verified by means
Koenderink, J. J., van Doorn, Andrea J.
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We employ an optimal solution to both the "shape from motion problem" and the related problem of the estimation of self-movement on a purely optical basis to deduce practical rules of thumb for the limits of the optic flow information content in the presence of perturbation of the motion parallax field. The results are illustrated and verified by means
Koenderink, J. J., van Doorn, Andrea J.
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International Journal of Computer Vision, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zimmer, Henning +2 more
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zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zimmer, Henning +2 more
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Optic Flow and Autonomous Navigation
Perception, 1995Many animals, especially insects, compute and use optic flow to control their motion direction and to avoid obstacles. Recent advances in computer vision have shown that an adequate optic flow can be computed from image sequences. Therefore studying whether artificial systems, such as robots, can use optic flow for similar purposes is of particular ...
CAMPANI M, GIACHETTI A, TORRE V
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Journal of Fluid Mechanics, 2008
The connection between fluid flow and optical flow is explored in typical flow visualizations to provide a rational foundation for application of the optical flow method to image-based fluid velocity measurements. The projected-motion equations are derived, and the physics-based optical flow equation is given.
Liu, Tianshu, Shen, Lixin
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The connection between fluid flow and optical flow is explored in typical flow visualizations to provide a rational foundation for application of the optical flow method to image-based fluid velocity measurements. The projected-motion equations are derived, and the physics-based optical flow equation is given.
Liu, Tianshu, Shen, Lixin
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Simulated Optic Flow and Extrastriate Cortex. I. Optic Flow Versus Texture
Journal of Neurophysiology, 1997Kim, Jong-Nam, Kathleen Mulligan, and Helen Sherk. Simulated optic flow and extrastriate cortex. I. Optic flow versus texture. J. Neurophysiol. 77: 554–561, 1997. A locomoting observer sees a very different visual scene than an observer at rest: images throughout the visual field accelerate and expand, and they follow approximately radial outward ...
J N, Kim, K, Mulligan, H, Sherk
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[1989] Proceedings. Workshop on Visual Motion, 2003
The authors examine some computational aspects of determining optical flow. Both area- and curve-based approaches are discussed. Necessary and sufficient conditions are investigated for the existence and uniqueness of the smoothing spline from regularization schema prevalent.
D. Lee +2 more
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The authors examine some computational aspects of determining optical flow. Both area- and curve-based approaches are discussed. Necessary and sufficient conditions are investigated for the existence and uniqueness of the smoothing spline from regularization schema prevalent.
D. Lee +2 more
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SIAM Journal on Control and Optimization, 2005
The author considers the optical flow equation \[ \frac{\partial }{\partial t}I+V\cdot\nabla I=0,\quad I(0)=I_0 \tag{1} \] in \([0,T]\times \Omega\), \(\Omega\in \mathbb{R}^d\), and given a target image \(I_1\) at \(T\) he finds \(V\) such that \(I(T)=I_1\).
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The author considers the optical flow equation \[ \frac{\partial }{\partial t}I+V\cdot\nabla I=0,\quad I(0)=I_0 \tag{1} \] in \([0,T]\times \Omega\), \(\Omega\in \mathbb{R}^d\), and given a target image \(I_1\) at \(T\) he finds \(V\) such that \(I(T)=I_1\).
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2013
Optical flow is the velocity vector field of the projected environmental surfaces when a viewing system moves relative to the environment.
Amar Mitiche, J.K Aggarwal
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Optical flow is the velocity vector field of the projected environmental surfaces when a viewing system moves relative to the environment.
Amar Mitiche, J.K Aggarwal
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