IEEE Transactions on Pattern Analysis and Machine Intelligence
Nonlinear total variation based noise removal algorithms
Proceedings of the eleventh annual international conference of the Center for Nonlinear Studies on Experimental mathematics : computational issues in nonlinear science: computational issues in nonlinear science
Association of motion verbs with vehicle movements extracted from dense optical flow fields
ECCV '94 Proceedings of the third European conference on Computer Vision (Vol. II)
A Fast Scalable Algorithm for Discontinuous Optical Flow Estimation
IEEE Transactions on Pattern Analysis and Machine Intelligence
Real-time quantized optimal flow
Real-Time Imaging - Special issue on computer vision motion analysis
Multigrid
Iterative Methods for Sparse Linear Systems
Iterative Methods for Sparse Linear Systems
Lucas/Kanade meets Horn/Schunck: combining local and global optic flow methods
International Journal of Computer Vision
The potential of the cell processor for scientific computing
Proceedings of the 3rd conference on Computing frontiers
Piecewise-Smooth Dense Optical Flow via Level Sets
International Journal of Computer Vision
International Journal of Computer Vision
Introduction to the cell multiprocessor
IBM Journal of Research and Development - POWER5 and packaging
Optical Flow Computation on Compute Unified Device Architecture
ICIAP '07 Proceedings of the 14th International Conference on Image Analysis and Processing
Over-Parameterized Variational Optical Flow
International Journal of Computer Vision
Scientific computing Kernels on the cell processor
International Journal of Parallel Programming
An iterative image registration technique with an application to stereo vision
IJCAI'81 Proceedings of the 7th international joint conference on Artificial intelligence - Volume 2
A duality based approach for realtime TV-L1 optical flow
Proceedings of the 29th DAGM conference on Pattern recognition
GPU-based multigrid: real-time performance in high resolution nonlinear image processing
ICVS'08 Proceedings of the 6th international conference on Computer vision systems
Discontinuity-preserving computation of variational optic flow in real-time
Scale-Space'05 Proceedings of the 5th international conference on Scale Space and PDE Methods in Computer Vision
Variational optical flow computation in real time
IEEE Transactions on Image Processing
A multi-resolution approach for massively-parallel hardware-friendly optical flow estimation
Journal of Visual Communication and Image Representation
Pipelined architecture for real-time cost-optimized extraction of visual primitives based on FPGAs
Digital Signal Processing
Parallel architecture for hierarchical optical flow estimation based on FPGA
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
A Framework for Moving Least Squares Method with Total Variation Minimizing Regularization
Journal of Mathematical Imaging and Vision
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While modern variational methods for optic flow computation offer dense flow fields and highly accurate results, their computational complexity has prevented their use in many real-time applications. With cheap modern parallel hardware such as the Cell Processor of the Sony PlayStation 3, new possibilities arise. For a linear and a nonlinear variant of the popular combined local-global method, we present specific algorithms on this architecture that are tailored towards real-time performance. They are based on bidirectional full multigrid methods with a full approximation scheme in the nonlinear setting. Their parallel design on the Cell hardware uses a temporal instead of a spatial decomposition, and processes operations in a vector-based manner. Memory latencies are reduced by a locality-preserving cache management and optimised access patterns. For images of size 316 脳 252 pixels, we obtain dense flow fields for up to 210 frames per second.