We demonstrate that GNMM is able to perform effective channel selections/reductions, which not only reduces the difficulty of data collection, but also greatly improves the generalization of the classifier. An important step that affects the effectiveness of GNMM is the pre-processing method. In this paper, we also highlight the importance of choosing an appropriate time window position.
The Space-Bandwidth Product (SBP) is a measure for the information capacity an optical system possesses. The two information processing steps in digital holography, recording and reconstruction, are analysed with respect to the SBP. The recording setup for a Fresnel hologram, Fourier hologram and Image-plane hologram, which represent the most commonly used setup configurations in digital holography, are investigated. For the recording process, the required SBP to ensure the recording of the entire object information is calculated. This is accomplished by analysing the recorded interference pattern in the hologram plane. The paraxial diffraction model is used in order to simulate the light propagation from the object to hologram-plane. The SBP in the reconstruction process is represented by the product of the reconstructed field of view and spatial frequency bandwidth. The outcome of this analysis results in a space-bandwidth product optimised digital holographic setup. c
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