spectral-based blind image restoration method for thin tombo imagersspectral-based薄东波成像系统的盲图像恢复方法.pdfVIP

Sensors 2008, 8, 6108-6124; DOI: 10.3390/s8096108 OPEN ACCESS sensors ISSN 1424-8220 /sensors Article Spectral-Based Blind Image Restoration Method for Thin TOMBO Imagers ⋆ Amar A. El-Sallam and Farid Boussaid School of Electrical, Electronic and Computer Engineering, The University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia ⋆ E-mail: elsallam@.au; boussaid@.au; Tel: +61 8 6488 (3645-3749); Fax: +61 8 6488 1065; Web: .au ⋆ Author to whom correspondence should be addressed. Received: 1 July 2008; in revised form: 7 September 2008 / Accepted: 8 September 2008 /Published: 26 September 2008 Abstract: With the recent advances in microelectronic fabrication technology, it has now become now possible to fabricate thin imagers, less than half a millimeter thick. Dubbed TOMBO (an acronym for Thin Observation Module by Bound Optics), a thin camera-on-a- chip integrates micro-optics and photo-sensing elements, together with advanced processing circuitry, all on a single silicon chip. Modeled after the compound-eye found in insects and many other arthropods, the TOMBO imager simultaneously captures a mosaic of low res- olution images. In this paper, we describe and analyze a novel spectral-based blind algo- rithm that enables the restoration of a high resolution image from the captured low resolution images.The proposed blind restoration method does not require prior information about the imagin