A Low-Complexity Interleaved Image Wavelet Transform Architecture for a Visual Sensor Node

We present a low-complexity architecture to perform a wavelet subband decomposition on an image captured from a visual sensor. The input into the architecture is a dynamic stream of image data from the visual sensor. The subband coefficients are computed on-the-fly as the data flow through the archi...

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Bibliographic Details
Main Authors: Ang, L.M., Yeong, L.S., Seng, K.P.
Format: Conference Proceeding
Language:English
Subjects:
Computer architecture
Data flow computing
Discrete wavelet transforms
Filters
Hardware
Image sensors
Image storage
Streaming media
Surveillance
Wavelet transforms
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Description
Summary:We present a low-complexity architecture to perform a wavelet subband decomposition on an image captured from a visual sensor. The input into the architecture is a dynamic stream of image data from the visual sensor. The subband coefficients are computed on-the-fly as the data flow through the architecture. The output from the architecture is a stream of interleaved subband coefficients. A 160times120 image pixels architecture to perform three scales of subband decomposition has been synthesized and implemented on a Xilinx FPGA utilizing a chip area of 940 Slices
DOI:10.1109/ICCIAS.2006.295365