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

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

7.9K
Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
7.9K
Influence of Earth's Curvature and Atmospheric Refraction on Leveling01:26

Influence of Earth's Curvature and Atmospheric Refraction on Leveling

1.3K
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance.
1.3K
Deformations in a Transverse Cross Section01:21

Deformations in a Transverse Cross Section

759
When a material is subjected to uniaxial stress, it elongates or contracts in the direction of the applied force, and also undergoes changes in the perpendicular directions. This behavior is crucial for understanding how materials behave under stress and is governed by mechanical properties such as Poisson's ratio v, which measures the ratio of transverse strain to axial strain.
As the material stretches, it expands or contracts in orthogonal directions to the load. This phenomenon varies...
759
Distance Corrections01:15

Distance Corrections

404
To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
404
Curvilinear Motion: Polar Coordinates01:27

Curvilinear Motion: Polar Coordinates

1.2K
In polar coordinates, the motion of a particle follows a curvilinear path. The radial coordinate symbolized as 'r,' extends outward from a fixed origin to the particle, while the angular coordinate, 'θ,' measured in radians, represents the counterclockwise angle between a fixed reference line and the radial line connecting the origin to the particle.
The particle's location is described using a unit vector along the radial direction. Deriving the particle's position...
1.2K
Geometry of Hyperbolas01:30

Geometry of Hyperbolas

675
A hyperbola consists of all points where the absolute difference of distances to two fixed points, called foci, remains constant. The standard equation isEach branch extends infinitely and approaches two asymptotes, which guide the curve’s behavior. The parameters a and b define key features: a measures the distance from the center to each vertex along the transverse axis, while b influences the slopes of the asymptotes. The asymptotes have equationsA rectangle centered at the origin with...
675

You might also read

Related Articles

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

Sort by
Same author

Preoperative prediction of occult high-volume central lymph node metastasis in clinically node-negative papillary thyroid carcinoma using a multimodal practical model: development, temporal validation, and external validation.

Diagnostic and interventional radiology (Ankara, Turkey)·2026
Same author

Deciphering the Halide Chemistry of Cl<sup>-</sup> and Br<sup>-</sup> in Enhancing Kinetics of Mg Plating/Stripping.

Journal of the American Chemical Society·2026
Same author

Synthesis of Thieno[3,2-<i>b</i>]thiophene-Cored Hexacyclic Molecules Via the Pictet-Spengler Reaction.

Organic letters·2026
Same author

Monolayer MoS<sub>2</sub> Enabled by Intercalation-Confinement Synergy Toward Ultrafast and Stable Sodium Storage.

Small methods·2026
Same author

Timing matters: denture use for cognitive protection is most effective before major tooth loss.

The journals of gerontology. Series A, Biological sciences and medical sciences·2026
Same author

Development of Peroxymonosulfate Catalytic System and Photoenzymatic Catalytic System Utilizing Zn-Doped g-C<sub>3</sub>N<sub>4</sub> for the Degradation of Methylene Blue in Water.

Langmuir : the ACS journal of surfaces and colloids·2026

Related Experiment Video

Updated: Apr 20, 2026

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher
05:14

Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

Published on: February 23, 2018

7.3K

Correcting large lens radial distortion using epipolar constraint.

Xiaochen Liu, Suping Fang

    Applied Optics
    |November 18, 2014
    PubMed
    Summary
    This summary is machine-generated.

    Correcting large lens radial distortion is crucial for 3D modeling. Our new epipolar constraint method offers superior accuracy and robustness using image point correspondences.

    More Related Videos

    Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration
    07:03

    Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration

    Published on: February 23, 2017

    8.1K
    Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery
    05:12

    Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery

    Published on: August 12, 2021

    2.6K

    Related Experiment Videos

    Last Updated: Apr 20, 2026

    Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher
    05:14

    Simulating the Mechanics of Lens Accommodation via a Manual Lens Stretcher

    Published on: February 23, 2018

    7.3K
    Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration
    07:03

    Medical-grade Sterilizable Target for Fluid-immersed Fetoscope Optical Distortion Calibration

    Published on: February 23, 2017

    8.1K
    Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery
    05:12

    Robotized Testing of Camera Positions to Determine Ideal Configuration for Stereo 3D Visualization of Open-Heart Surgery

    Published on: August 12, 2021

    2.6K

    Area of Science:

    • Computer Vision
    • Photogrammetry
    • 3D Reconstruction

    Background:

    • Accurate 3D model reconstruction from 2D images necessitates lens distortion correction.
    • Radial lens distortion, particularly the first-order term (large lens radial distortion), significantly impacts accuracy.
    • Existing methods often require complex calibration or multiple views.

    Purpose of the Study:

    • To propose a novel method for correcting large lens radial distortion.
    • To leverage epipolar constraints for distortion correction.
    • To achieve accurate 3D modeling with minimal input requirements.

    Main Methods:

    • The proposed method utilizes image point correspondences from two views.
    • It assumes the distortion center is located at the image center.
    • Epipolar constraints are employed to correct the radial distortion.

    Main Results:

    • The method effectively corrects large lens radial distortion.
    • Experimental results demonstrate high correction accuracy.
    • The proposed approach shows improved robustness compared to previous methods.

    Conclusions:

    • The epipolar constraint-based method provides an effective solution for large lens radial distortion correction.
    • This technique simplifies the 3D modeling pipeline by reducing calibration complexity.
    • The method's accuracy and robustness make it suitable for practical applications.