Comparison of vision and conventional wavelet filters

Geoffrey W. Brooks

doi:10.1117/12.271743

3 April 1997 Comparison of vision and conventional wavelet filters

Geoffrey W. Brooks

Proceedings Volume 3078, Wavelet Applications IV; (1997) https://doi.org/10.1117/12.271743
Event: AeroSense '97, 1997, Orlando, FL, United States

Abstract

Biological vision systems of higher life forms naturally divide space, time, and color domains into a relatively few bandpass components. In the spatial domain, the division is primarily into a low frequency bandpass channel and a high frequency bandpass channel. Wavelet analysis also divides input into low and high band representations. Chips originally designed to exploit filtering functionality of biological retinas can also be used to perform fast analog decomposition of imagery into subsequent vision wavelet components. These filtering concepts are presented in connection to previously developed retinal processors and compared to conventional wavelet filters. Although perfect reconstruction is not performed by biological systems, it is used here as a metric for measuring level of information corruption inherent in biological filter models.

Citation Download Citation

Geoffrey W. Brooks "Comparison of vision and conventional wavelet filters", Proc. SPIE 3078, Wavelet Applications IV, (3 April 1997); https://doi.org/10.1117/12.271743

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