A flame emits energy over a wide spectral region, providing important information about the
combustion process. Its associated spectra, classified into continuous and discontinuous …

In multispectral imaging, Wiener estimation is widely adopted for the reconstruction of
spectral reflectance. We propose an improved reflectance reconstruction method by …

The problem of estimating spectral reflectances from the responses of a digital camera has
received considerable attention recently. This problem can be cast as a regularized …

Acquisition of spectral information of objects being imaged through the use of sensor
responses is important to reproduce color images under various illuminations. In the past …

Principal component analysis (PCA) is widely used to reconstruct the spectral reflectance of
surface colors. However, the estimated spectral accuracy is low when using only one set of …

Hyperspectral (HS) sensors sample reflectance spectrum in very high resolution, which
allows us to examine material properties in very fine details. However, their widespread …

We have analyzed the performance of simulated multispectral systems for the spectral
recovery of reflectance of printer inks from camera responses, including noise. To estimate …

Multi-spectral imaging using a camera with more than three channels is an efficient method
to acquire and reconstruct spectral data and is used extensively in tasks like object …

A new method is presented for retrieval of the aerosol and cloud optical depth using a CCD
camera equipped with a fish-eye lens (all-sky imager system). In a first step, the proposed …

In this paper a low-cost, practical pixel-based flame spectrum and temperature estimation
system based on flame color images is proposed. A spectral resolution of∼ 0.4 nm is …