Title |
Complexity Analysis of Iterative Basis Transformations Applied to Event-Based Signals
|
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Published in |
Frontiers in Neuroscience, June 2018
|
DOI | 10.3389/fnins.2018.00373 |
Pubmed ID | |
Authors |
Sio-Hoi Ieng, Eero Lehtonen, Ryad Benosman |
Abstract |
This paper introduces an event-based methodology to perform arbitrary linear basis transformations that encompass a broad range of practically important signal transforms, such as the discrete Fourier transform (DFT) and the discrete wavelet transform (DWT). We present a complexity analysis of the proposed method, and show that the amount of required multiply-and-accumulate operations is reduced in comparison to frame-based method in natural video sequences, when the required temporal resolution is high enough. Experimental results on natural video sequences acquired by the asynchronous time-based neuromorphic image sensor (ATIS) are provided to support the feasibility of the method, and to illustrate the gain in computation resources. |
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