Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/43684
Title: HYPERSPECTRAL IMAGING USING SILICON MICROMACHINED VIBRATORY GRATING SCANNERS
Authors: CHEO KOON LIN
Keywords: Hyperspectral imaging, MEMS, Scanner, Miniaturization
Issue Date: 14-Feb-2013
Source: CHEO KOON LIN (2013-02-14). HYPERSPECTRAL IMAGING USING SILICON MICROMACHINED VIBRATORY GRATING SCANNERS. ScholarBank@NUS Repository.
Abstract: Two optical configurations are proposed to implement a hyperspectral imager. The first configuration suffered from complexity of the optical system and complying electronics. To overcome this, a second configuration is proposed by taking advantage of the increased computational capabilities of present systems. Instead of a hardware-based distortion correction mechanism, a software approach was implemented. A post-processing algorithm incorporating Delaunay Triangulation (DT) is used for minimising the furthest distance of the neighbouring points of which to select for each corrected points, thereby improving the accuracy of the subsequent interpolation step. This second configuration simplifies the overall optical system by only requiring a single galvano-mirror, reducing the electronics driving synchronization requirements and also improves the overall miniaturization potential.
URI: http://scholarbank.nus.edu.sg/handle/10635/43684
Appears in Collections:Ph.D Theses (Open)

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