Sparse approximation is an important class of optimization problem in signal and image processing applications. This thesis presents an analog solution to this problem, based on the Locally Competitive Algorithm (LCA). A Hopfield-Network-like analog system, operating on sub-threshold currents is proposed as a solution.
The results of the circuit components' implementation on the RASP2.8a chip, a Field Programmable Analog Array, are presented.
| Identifer | oai:union.ndltd.org:GATECH/oai:smartech.gatech.edu:1853/37255 |
| Date | 17 November 2009 |
| Creators | Balavoine, Aurèle |
| Publisher | Georgia Institute of Technology |
| Source Sets | Georgia Tech Electronic Thesis and Dissertation Archive |
| Detected Language | English |
| Type | Thesis |
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