A radiometric assay for gentamicin was compared with an established radioimmunoassay protocol. The coefficients of variation for within-run, day-to-day, and overall runs were consistently higher for the radiometric method as compared with the radioimmunoassay. The coefficient of correlation for 84 patient sera tested by the two methods for gentamicin levels was 0.82. Though less precise, the ra...

Radiometric values on digital imagery are affected by several sources of uncertainty. A practical, comprehensive and flexible procedure to analyze the radiometric values and the uncertainty effects due to the camera sensor system is described in this paper. The procedure is performed on the grey level output signal using image raw units with digital numbers ranging from 0 to 2(12)-1. The proced...

Description: The 6S code provides a significantly lower radiometric variation (2.8%) than the use of pseudo-invariant features (4.1%), which remains a valid approach with only a few carefully selected invariant sectors. Abstract We compared the efficiency and robustness of two radiometric correction techniques applied to six SPOT-5 scenes used for assessing environmental changes of Camargue wet...

Seon Joo Kim: Radiometric Calibration Methods from Image Sequences. (Under the direction of Marc Pollefeys.) In many computer vision systems, an image of a scene is assumed to directly reflect the scene radiance. However, this is not the case for most cameras as the radiometric response function which is a mapping from the scene radiance to the image brightness is nonlinear. In addition, the ex...

A radiometric procedure for rapid detection of bacteria in clinical blood specimens was utilized over a period of 1 year in this laboratory. Although in initial studies it was felt that all positive bacteremias would be detected by radiometric examination of cultures for 14CO2 evolution over a 7-day period, we found in the present study that a significant number of bacteria were not detected, e...

The Geostationary Ocean Color Imager (GOCI) is the world’s first ocean color sensor in geostationary orbit. Although the GOCI has shown excellent radiometric performance with little long-term radiometric degradation and a high signal-to-noise ratio, there are radiometric artefacts in GOCI Level 1 products caused by stray light detected within the GOCI optics. To correct the radiometric bias, we...

This paper investigates the role of color in global stereo matching approaches. In our evaluation study, we build various energy functions by combining nine color spaces with four dissimilarity functions and test their performance on 30 ground truth stereo pairs. Our experiments start by computing the matching scores via the absolute difference of color values. As is consistent with previous st...

using satellite imagery for the study of earth's resources is attended by manyresearchers. in fact, the various phenomena have different spectral response inelectromagnetic radiation. one major application of satellite data is the classification ofland cover. in recent years, a number of classification algorithms have been developed forclassification of remote sensing data. one of the most nota...