Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Common Leveling Mistakes and Errors

Common Leveling Mistakes and Errors

A survey team is tasked with determining the elevation difference between points Point A and Point B, separated by uneven terrain. They use a leveling instrument and a leveling rod.Common MistakesMisreading the Rod: During a backsight reading at Point A, the instrumentman observes the rod partially obscured by tall grass. Instead of reading 1.135 m, they mistakenly record 1.735 m due to the misalignment of the crosshair with the wrong graduation. This error adds 0.600 m to all subsequent...

NMR Spectrometers: Resolution and Error Correction

NMR Spectrometers: Resolution and Error Correction

When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Direct interaction of the 170 kDa isoform of synaptojanin 1 with clathrin and with the clathrin adaptor AP-2.

Current biology : CB·2000

Same author

The epsins define a family of proteins that interact with components of the clathrin coat and contain a new protein module.

The Journal of biological chemistry·1999

Same author

The functional role of positively charged amino acid side chains in alpha-bungarotoxin revealed by site-directed mutagenesis of a His-tagged recombinant alpha-bungarotoxin.

Biochemistry·1999

Same author

Waldenström's macroglobulinemia resulting from localized gastric lymphoplasmacytoid lymphoma.

American journal of hematology·1998

Same author

Diaphragmatic paralysis complicating alcohol splanchnic nerve block.

Anesthesia and analgesia·1998

Same author

American Heart Association recommendations for treating tricyclic antidepressant-induced hypotension.

Anesthesiology·1997

Search research articles

Related Experiment Video

Updated: Jun 17, 2026

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

Correction techniques for a multilevel reflection scanner.

J A Rosenthal, P Serednicky

|January 16, 2010

Summary

This study addresses key challenges in multilevel reflection scanner design, focusing on tonal distortion and signal processing. Solutions involve computer correction tables to improve image accuracy and scanner performance.

Area of Science:

Image processing and scanner technology
Optical engineering and instrumentation

Background:

Multilevel reflection scanners are complex systems requiring precise calibration.
Existing scanner designs face challenges with tonal accuracy and signal stability.

Purpose of the Study:

To identify and solve fundamental problems in multilevel reflection scanner design.
To analyze and mitigate tonal distortion caused by system geometry and material properties.

Main Methods:

Utilized a computer-controlled system with a cathode ray tube light source and photomultiplier tubes (PMTs).
Developed computer correction tables to address PMT placement, paper reflectivity, and PMT drift.
Performed detailed geometric analysis of tonal distortion and compared with experimental data.

More Related Videos

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Published on: May 20, 2013

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

Related Experiment Videos

Last Updated: Jun 17, 2026

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material

Published on: May 20, 2013

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements

Published on: December 5, 2025

Main Results:

Identified tonal distortion, paper reflection variability, and PMT drift as primary issues.
Demonstrated the effectiveness of computer correction tables in reducing tonal distortion.
Validated analytical models of tonal distortion with experimental findings.

Conclusions:

Computer correction tables are effective in mitigating fundamental problems in multilevel reflection scanners.
Geometric factors significantly contribute to tonal distortion, requiring careful system design.
The research provides solutions for enhancing the accuracy and reliability of reflection scanners.