Reflectance reconstruction for multispectral imaging by adaptive Wiener estimation

Reflectance reconstruction for multispectral imaging by adaptive Wiener estimation.

In multispectral imaging, Wiener estimation is widely adopted for the reconstruction of spectral reflectance. We propose an improved reflectance reconstruction method by adaptively selecting training samples for the autocorrelation matrix calculation in Wiener estimation, without a prior knowledge of the spectral information of the samples being imaged. The performance of the proposed adaptive ...

Improved reflectance reconstruction for multispectral imaging by combining different techniques.

In multispectral imaging system, one of the most important tasks is to accurately reconstruct the spectral reflectance from system responses. We propose such a new method by combing three most frequently used techniques, i.e., wiener estimation, pseudo-inverse, and finite-dimensional modeling. The weightings of these techniques are calculated by minimizing the combined standard deviation of bot...

LED Multispectral Imaging: Reconstruction of Reflectance Spectra

When we take photos with digital cameras and view them on display devices (such as LCD monitors), we want it to be an accurate representation of the original scene. However, the camera only gives us a limited set of data that does not allow for a very accurate reconstruction of the image. We can see this by comparing the data that the camera captures with the true information that is available ...

Correcting cross-media instrument metamerism for reflectance estimation in multispectral imaging.

In multispectral imaging, the color accuracy of spectral reflectance estimation degrades significantly if the medium of test samples is different from that of calibration samples. This occurs mainly for two reasons, i.e., the different characteristics of spectral reflectances and the different measurement principles between an imaging system and a spectrophotometer. In this paper, this problem ...

Multispectral Analysis and spectral Reflectance Reconstruction of Art Paintings