Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Flame Photometry: Overview01:02

Flame Photometry: Overview

Flame photometry, also known as flame emission spectrometry, is a technique used for the qualitative and quantitative analysis of elements present in a sample using a flame as the source of excitation energy. The concept of flame photometry was realized in the early 1860s by Kirchhoff and Bunsen, who discovered that specific elements emit characteristic radiation when excited in flames. The first instrument developed for this purpose was used to measure sodium (Na) in plant ash using a Bunsen...
Light Acquisition02:16

Light Acquisition

In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.
Flame Photometry: Lab01:16

Flame Photometry: Lab

In a flame photometer, when a solution like potassium chloride is aspirated into the flame, the solvent evaporates, leaving behind dehydrated salt. This salt dissociates into free gaseous atoms in their ground state. Some of these atoms absorb energy from the flame, leading to their excitation. The excited atoms return to the ground state, emitting photons at characteristic wavelengths. Because only electronic transitions are involved, the resulting emission lines are very narrow. The intensity...

You might also read

Related Articles

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

Sort by
Same author

Solving Monocular Visual Odometry Scale Factor with Adaptive Step Length Estimates for Pedestrians Using Handheld Devices.

Sensors (Basel, Switzerland)·2019
Same author

Indoor Positioning System Based on Chest-Mounted IMU.

Sensors (Basel, Switzerland)·2019
Same author

Incremental 3D Cuboid Modeling with Drift Compensation.

Sensors (Basel, Switzerland)·2019
Same author

Video Salient Object Detection Using Spatiotemporal Deep Features.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2018
Same author

Fine tuning of the redox function of Pseudomonas aeruginosa cytochrome c551 through structural properties of a polypeptide loop bearing an axial Met residue.

Journal of inorganic biochemistry·2012
Same author

Cyclosporin-A potently induces highly cardiogenic progenitors from embryonic stem cells.

Biochemical and biophysical research communications·2008

Related Experiment Video

Updated: May 9, 2026

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
11:57

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

Published on: May 20, 2013

Range image registration using a photometric metric under unknown lighting.

Diego Thomas1, Akihiro Sugimoto

  • 1National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo, Japan. diego_thomas@nii.ac.jp

IEEE Transactions on Pattern Analysis and Machine Intelligence
|July 23, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a new photometric metric for precise range image registration under challenging, unknown lighting conditions. The method accurately aligns 3D data by minimizing photometric reprojection error, proving effective in experiments.

Related Experiment Videos

Last Updated: May 9, 2026

Measuring Spatially- and Directionally-varying Light Scattering from Biological Material
11:57

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

Published on: May 20, 2013

Area of Science:

  • Computer Vision
  • 3D Reconstruction
  • Photogrammetry

Background:

  • Accurate registration of range images is crucial for 3D reconstruction.
  • Existing methods struggle with unknown, general illumination and lack of distinct geometric features.
  • Photometric information is often underutilized in range image alignment.

Purpose of the Study:

  • To develop a novel photometric metric for evaluating rigid transformations between overlapping range images.
  • To enable accurate registration of range images captured under unknown and general lighting conditions.
  • To provide a practical method for registering range images lacking salient geometric features.

Main Methods:

  • Derivation of a photometric metric based on spherical harmonics representation of image formation.
  • Estimation of illumination and albedo values from point correspondences.
  • Computation of photometric reprojection error by synthesizing image colors.
  • Hypothesize-and-test strategy using spherical representation for transformation candidate generation.

Main Results:

  • A new photometric metric effectively evaluates rigid transformations for range image alignment.
  • The proposed method accurately registers range images under unknown, general illumination.
  • Experimental results validate the metric's usefulness on both synthetic and real data.

Conclusions:

  • The developed photometric metric offers a robust solution for range image registration challenges.
  • The method is particularly valuable for datasets with minimal geometric features and complex lighting.
  • This work advances the field of 3D data alignment and reconstruction.