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- W2970469101 abstract "At the cost of added complexity and time, hyperspectral imaging provides a more accurate measure of the scene’s irradiance compared to an RGB camera. Several camera designs with more than three channels have been proposed to improve the accuracy. The accuracy is often evaluated based on the estimation quality of the spectral data. Currently, such evaluations are carried out with either simulated data or color charts to relax the spatial registration requirement between the images. To overcome this limitation, this article presents an accurately registered image database of six icon paintings captured with five cameras with different number of channels, ranging from three (RGB) to more than a hundred (hyperspectral camera). Icons are challenging topics because they have complex surfaces that reflect light specularly with a high dynamic range. Two contributions are proposed to tackle this challenge. First, an imaging configuration is carefully arranged to control the specular reflection, confine the dynamic range, and provide a consistent signal-to-noise ratio for all the camera channels. Second, a multi-camera, feature-based registration method is proposed with an iterative outlier removal phase that improves the convergence and the accuracy of the process. The method was tested against three other approaches with different features or registration models." @default.
- W2970469101 created "2019-09-05" @default.
- W2970469101 creator A5063839466 @default.
- W2970469101 date "2019-08-29" @default.
- W2970469101 modified "2023-09-27" @default.
- W2970469101 title "Configuration and Registration of Multi-Camera Spectral Image Database of Icon Paintings" @default.
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- W2970469101 doi "https://doi.org/10.3390/computation7030047" @default.
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