A common need of the INCITS W1.1 Macro Uniformity, Color Rendition and Micro Uniformity ad hoc teams is to digitize image quality test targets and derive parameters that correlate with image quality assessments. The digitized data should be in a colorimetric color space such as CIELAB and have no spatial artifacts that reduce image quality parameter accuracy. Input digitizers come in many forms...

A very simple method of making stereoscopic image pairs from small objects by means of flatbed scanners has been recently developed. Due to the non-parallel optics of modern flatbed scanners using CCD-elements, objects can be scanned with slightly different viewing angles by simply putting them on different lateral positions on the glass surface. As a consequence of the high resolution and the ...

Context. The historic plates of the Carte du Ciel, an international cooperative project launched in 1887, offers valuable firstepoch material for determining of absolute proper motions. Aims. We present an original method of digitizing and astrometrically reducing Carte du Ciel plate material using an inexpensive flatbed scanner, to demonstrate that for this material there is an alternative to ...

The article provides a sequence of steps for using RISØ calorimeters calibration and subsequent use B3 radiochromic film dosimeters (GEX corporation) scanner measuring absorbed doses. Calibration was carried out with the help electron beam accelerator in range doses 3 – 40 kGy (measurement calorimeters). In course work, following out: dosimetry films calorimeters; plotting curve dosimetric film...

In this study, we introduce a dual enlargement of gold nanoparticles (AuNPs) for the scanometric detection of pathogenic bacteria. After capturing the target bacteria (Campylobacter jejuni cells), the gold immunoprobes were added to create signal on a solid substrate. The signal was then amplified dually by a gold growth process and a silver enhancement resulting in stronger intensity which can...

We describe the design principles of a photometric flatbed scanner with a scan area of 250 X 250 mm2, a dynamic range of 4000 gray levels, a signal/noise ratio of 2000/1, a step size of 0.1 mm, and a step frequency of 2000 steps per second. It is controlled by a microcomputer and used to acquire data for quantitative evaluation of gels or chromatograms. The performance of the instrument is demo...

This paper presents a new light field capture system where the main design goal is low cost. To minimize cost we use an off-the-shelf flatbed scanner as the digitizing element. However, intrinsic properties of scanners can adversely affect resultant images. We will survey these properties and their effects in raw outputs. Image manipulation techniques will then be discussed so that proper light...