IEEE Trans Image Process - Contourlet domain multiband deblurring based on color correlation for fluid lens cameras.

Tópicos

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Resumo

Due to the novel fluid optics, unique image processing challenges are presented by the fluidic lens camera system. Developed for surgical applications, unique properties, such as no moving parts while zooming and better miniaturization than traditional glass optics, are advantages of the fluid lens. Despite these abilities, sharp color planes and blurred color planes are created by the nonuniform reaction of the liquid lens to different color wavelengths. Severe axial color aberrations are caused by this reaction. In order to deblur color images without estimating a point spread function, a contourlet filter bank system is proposed. Information from sharp color planes is used by this multiband deblurring method to improve blurred color planes. Compared to traditional Lucy-Richardson and Wiener deconvolution algorithms, significantly improved sharpness and reduced ghosting artifacts are produced by a previous wavelet-based method. Directional filtering is used by the proposed contourlet-based system to adjust to the contours of the image. An image is produced by the proposed method which has a similar level of sharpness to the previous wavelet-based method and has fewer ghosting artifacts. Conditions for when this algorithm will reduce the mean squared error are analyzed. While improving the blue color plane by using information from the green color plane is the primary focus of this paper, these methods could be adjusted to improve the red color plane. Many multiband systems such as global mapping, infrared imaging, and computer assisted surgery are natural extensions of this work. This information sharing algorithm is beneficial to any image set with high edge correlation. Improved results in the areas of deblurring, noise reduction, and resolution enhancement can be produced by the proposed algorithm.

Resumo Limpo

due novel fluid optic uniqu imag process challeng present fluidic len camera system develop surgic applic uniqu properti move part zoom better miniatur tradit glass optic advantag fluid len despit abil sharp color plane blur color plane creat nonuniform reaction liquid len differ color wavelength sever axial color aberr caus reaction order deblur color imag without estim point spread function contourlet filter bank system propos inform sharp color plane use multiband deblur method improv blur color plane compar tradit lucyrichardson wiener deconvolut algorithm signific improv sharp reduc ghost artifact produc previous waveletbas method direct filter use propos contourletbas system adjust contour imag imag produc propos method similar level sharp previous waveletbas method fewer ghost artifact condit algorithm will reduc mean squar error analyz improv blue color plane use inform green color plane primari focus paper method adjust improv red color plane mani multiband system global map infrar imag comput assist surgeri natur extens work inform share algorithm benefici imag set high edg correl improv result area deblur nois reduct resolut enhanc can produc propos algorithm

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