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

550
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...
550
X-ray Imaging01:24

X-ray Imaging

5.5K
German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
5.5K
Detection of Black Holes01:10

Detection of Black Holes

2.2K
Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
2.2K
Flame Photometry: Lab01:16

Flame Photometry: Lab

243
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...
243
Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

400
Consider a crane whose telescopic boom rotates with an angular velocity of 0.04 rad/s and angular acceleration of 0.02 rad/s2. Along with the rotation, the boom also extends linearly with a uniform speed of 5 m/s. The extension of the boom is measured at point D, which is measured with respect to the fixed point C on the other end of the boom. For the given instant, the distance between points C and D is 60 meters.
Here, in order to determine the magnitude of velocity and acceleration for point...
400
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

459
Consider a component AB undergoing a linear motion. Along with a linear motion, point B also rotates around point A. To comprehend this complex movement, position vectors for both points A and B are established using a stationary reference frame.
However, to express the relative position of point B relative to point A, an additional frame of reference, denoted as x'y', is necessary. This additional frame not only translates but also rotates relative to the fixed frame, making it...
459

You might also read

Related Articles

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

Sort by
Same author

Joint calibration of a full-field autonomous ranging system and camera exterior orientation parameters.

Applied optics·2026
Same author

Method for large antenna deformation measurement based on fusion of visual imaging and laser ranging.

Optics express·2026
Same author

<i>DoMYB75</i> coordinately regulates polysaccharide and anthocyanin biosynthesis in <i>Dendrobium officinale</i>.

Horticulture research·2026
Same author

Sociability genetically separable from social hierarchy in amniotes.

iScience·2025
Same author

Histone deacetylase 9 modulates the acetylation dynamics of phototropin 1 to fine-tune phototropic responses in plants.

Plant communications·2025
Same author

Camera optimal projection model identification and calibration method based on the NGO-BA architecture.

Applied optics·2024
Same journal

Multifunctional reconfigurable terahertz metasurface based on vanadium dioxide phase transition: achieving broadband absorption and efficient polarization conversion.

Applied optics·2026
Same journal

High-Q-factor electromagnetically induced transparency utilizing quasi-bound states in the continuum in an all-dielectric terahertz metasurface.

Applied optics·2026
Same journal

Automated stitching interferometry for high-precision metrology of X-ray mirrors.

Applied optics·2026
Same journal

Experimental demonstration of an approach to designing a metal-dielectric DBR resonant cavity structure.

Applied optics·2026
Same journal

High-precision wavefront reconstruction from a single-shot interferogram using a physics-driven hybrid feature calibration network.

Applied optics·2026
Same journal

Ultra-high-Q Fano resonance based on coupled topological corner states in Kagome photonic crystals.

Applied optics·2026
See all related articles

Related Experiment Video

Updated: Jun 24, 2025

Bringing the Visible Universe into Focus with Robo-AO
10:35

Bringing the Visible Universe into Focus with Robo-AO

Published on: February 12, 2013

19.4K

Robust and adaptive star identification algorithm based on linear assignment for multiple large field of view visual

Guangyi Dai, Qilin Liu, Lei Deng

    Applied Optics
    |June 10, 2024
    PubMed
    Summary
    This summary is machine-generated.

    This study presents a new star identification algorithm for space imaging systems, improving accuracy despite on-orbit noise. The algorithm enhances satellite attitude determination and reduces mission costs.

    More Related Videos

    Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing
    06:25

    Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

    Published on: February 23, 2024

    586
    Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
    06:14

    Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

    Published on: July 30, 2020

    4.9K

    Related Experiment Videos

    Last Updated: Jun 24, 2025

    Bringing the Visible Universe into Focus with Robo-AO
    10:35

    Bringing the Visible Universe into Focus with Robo-AO

    Published on: February 12, 2013

    19.4K
    Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing
    06:25

    Author Spotlight: Assessment of Visual Acuity in Central Vision Loss Through Motion-Based Peripheral Vision Testing

    Published on: February 23, 2024

    586
    Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
    06:14

    Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

    Published on: July 30, 2020

    4.9K

    Area of Science:

    • Spacecraft attitude determination
    • Computational astronomy
    • Image processing

    Background:

    • On-orbit star identification is crucial for spacecraft attitude determination.
    • Environmental disturbances like noise challenge existing algorithms.
    • Integration of visual imaging and attitude determination systems requires robust solutions.

    Purpose of the Study:

    • To introduce a novel star identification algorithm for multiple large field of view (FOV) visual imaging systems.
    • To enhance algorithm stability against various noise types encountered in space.
    • To improve the accuracy and efficiency of star identification for on-orbit applications.

    Main Methods:

    • Developed a dynamic simulated star images generation method for diverse camera FOVs.
    • Implemented a two-part algorithm: star edge matching (coarse) and star point registration (precise).
    • Utilized linear assignment for coarse matching of interstellar angular distances and vector matching for precise registration.

    Main Results:

    • Achieved 97.83% identification accuracy, demonstrating high performance.
    • Maintained accuracy with image plane errors (1-pixel std. dev.) and up to five missing stars.
    • Validated effectiveness through both simulated and empirical experiments.

    Conclusions:

    • The novel algorithm offers robust star identification for space applications.
    • It provides stability against common on-orbit noise, enhancing attitude determination.
    • Potential benefits include reduced equipment weight, simplified launches, and lower maintenance costs.