Image Reconstruction Research on Color Filter Array
نویسندگان
چکیده
منابع مشابه
Demosaicing and Zooming for Color Filter Array via Residual Image Reconstruction Demosaicing and Zooming for Color Filter Array via Residual Image Reconstruction
A method of demosaicing and zooming for color filter array (CFA) via residual image reconstruction is presented. Given the demosaicing and zooming methods, a residual image between the ‘genuine’ image and an initial demosaiced and zoomed image is reconstructed using a dictionary and sparse coding. The ‘genuine’ image has richer edges and details than that of the initially obtained image. A gene...
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In most imaging systems, image compression is carried out after demosaicing process and compression algorithms usually have focused on compressing threechannel color images. Recently, several image compression methods are proposed to directly handle CFA images that are captured before color interpolation. These CFA compression schemes exploit the fact that CFA images do not contain the redundan...
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A single-chip image sensor used in almost all consumer and in some professional-grade digital cameras today is affixed with an alternating pattern of spectrally shifted (in the electromagnetic wavelength sense) color filters to each pixel location. The arrangement of color filters, which are typically the canonical color triples (i.e. red, green, blue), is called color filter array (or CFA) [1,...
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In this paper, zooming methods which operate directly on color filter array (CFA) data are proposed, analyzed, and evaluated. Under the proposed framework enlarged spatial resolution images are generated directly from the CFA-based image sensors. The reduced computational complexity of the proposed schemes makes them ideal for real-time surveillance systems, industrial strength computer vision ...
متن کاملSpatial Arrangement of Color Filter Array for Multispectral Image Acquisition
In the past few years there has been a significant volume of research work carried out in the field of multispectral image acquisition. The focus of most of these has been to facilitate a type of multispectral image acquisition systems that usually requires multiple subsequent shots (e.g. systems based on filter wheels, liquid crystal tunable filters, or active lighting). Recently, an alternati...
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ژورنال
عنوان ژورنال: Procedia Engineering
سال: 2012
ISSN: 1877-7058
DOI: 10.1016/j.proeng.2012.01.288