Title :
A new motion parameter estimation algorithm based on the continuous wavelet transform
Author :
Mujica, Fernando A. ; Leduc, Jean-Pierre ; Murenzi, Romain ; Smith, Mark J T
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
5/1/2000 12:00:00 AM
Abstract :
This paper presents a novel motion parameter estimation (ME) algorithm based on the spatio-temporal continuous wavelet transform (CWT). The multidimensional nature of the CWT allows for the definition of a multitude of energy densities by integrating over a subset of the CWT parameter space. Three energy densities are used to estimate motion parameters by sequentially optimizing a state vector composed of velocity, position, and size parameters. This optimization is performed on a frame-by-frame basis allowing the algorithm to track moving objects. The ME algorithm is designed to address real world challenges encountered in the defense industry and traffic monitoring scenarios, such as attaining robust performance in noise and handling obscuration and crossing object trajectories
Keywords :
motion estimation; optimisation; tracking; wavelet transforms; CWT; ME algorithm; continuous wavelet transform; crossing object trajectories; defense industry; energy densities; frame-by-frame basis; motion parameter estimation; motion parameter estimation algorithm; motion parameters; moving objects; noise; obscuration; performance; position; size parameters; spatio-temporal continuous wavelet transform; state vector; tracking; traffic monitoring; velocity; Algorithm design and analysis; Continuous wavelet transforms; Defense industry; Monitoring; Motion estimation; Multidimensional systems; Noise robustness; Parameter estimation; State estimation; Wavelet transforms;
Journal_Title :
Image Processing, IEEE Transactions on