II
Distributed Sensing and Signal Processing
4 Digital Signal Processing Backgrounds Yu Hen Hu
Introduction • Discrete-Time System Theory • Frequency Representation and the DFT • Digital Filters • Sampling, Decimation, Interpolation • Conclusion • Appendix • References
5 Image Processing Background Lynne L. Grewe and Ben Shahshahani
Introduction • Motivation • Image Creation • Image Domains: Spatial, Frequency • Point-Based Operations • Area-Based Operations • Noise Removal • Feature Extraction • Registration, Calibration, and Fusion Issues • Compression and Transmission: Impacts on a Distributed Sensor Network • Image Resampling • Image Processing for Output • More Imaging in Sensor Network Applications • References
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