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

Maximum Size of Aggregate01:12

Maximum Size of Aggregate

264
The maximum size of aggregate is defined as the aperture of the sieve retaining 15 percent or more of the particles present in the aggregate sample. The aggregate's maximum size impacts the concrete's water requirement, workability, and strength. Larger aggregates reduce the surface area needing cement paste coverage, which can lower water needs, thereby allowing a decrease in the water-to-cement ratio when the desired workability and richness of the mix are to be maintained, which can...
264
Geometric Mean01:15

Geometric Mean

3.6K
The mean is a measure of the central tendency of a data set. In some data sets, the data is inherently multiplicative, and the arithmetic mean is not useful. For example, the human population multiplies with time, and so does the credit amount of financial investment, as the interest compounds over successive time intervals.
In cases of multiplicative data, the geometric mean is used for statistical analysis. First, the product of all the elements is taken. Then, if there are n elements in the...
3.6K
Estimation of the Physical Quantities01:05

Estimation of the Physical Quantities

6.4K
On many occasions, physicists, other scientists, and engineers need to make estimates of a particular quantity. These are sometimes referred to as guesstimates, order-of-magnitude approximations, back-of-the-envelope calculations, or Fermi calculations. The physicist Enrico Fermi was famous for his ability to estimate various kinds of data with surprising precision. Estimating does not mean guessing a number or a formula at random. Instead, estimation means using prior experience and sound...
6.4K
Accuracy, limits, and approximation01:28

Accuracy, limits, and approximation

719
Accuracy, limits, and approximations are common in many fields, especially in engineering calculations. These concepts are imperative for ensuring that a given value is as close as possible to its true value.
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
The accuracy of any solution is based on the...
719
Unsoundness of Aggregate due to Volume Change01:26

Unsoundness of Aggregate due to Volume Change

208
Unsoundness in aggregates due to volume changes is primarily caused by the physical alterations aggregates undergo, such as freezing and thawing, thermal changes, and wetting and drying. Unsound aggregates, when subjected to these changes, result in volume change upon disintegration. This, in turn, contributes to the deterioration of concrete, including scaling, pop-outs, and cracking. Particular types of aggregates, such as porous flints, cherts, and those containing clay minerals, are...
208
Distance Measurements by Taping01:18

Distance Measurements by Taping

148
Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
148

You might also read

Related Articles

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

Sort by
Same author

[Evaluation of palatal bone thickness in adults with normal occlusion for orthodontic miniscrews placement].

Zhonghua kou qiang yi xue za zhi = Zhonghua kouqiang yixue zazhi = Chinese journal of stomatology·2011
Same author

5-Methyl-1-(3-nitro-benz-yl)-1H-1,2,3-triazole-4-carboxylic acid monohydrate.

Acta crystallographica. Section E, Structure reports online·2011
Same author

1-Benzyl-5-methyl-1H-1,2,3-triazole-4-carboxylic acid monohydrate.

Acta crystallographica. Section E, Structure reports online·2011
Same author

1-[(3-Methyl-piperidin-1-yl)(phen-yl)meth-yl]-2-naphthol.

Acta crystallographica. Section E, Structure reports online·2011
Same author

Determination of fumaric and maleic acids with stacking analytes by transient moving chemical reaction boundary method in capillary electrophoresis.

Journal of chromatography. A·2011
Same author

On-road pollutant emission and fuel consumption characteristics of buses in Beijing.

Journal of environmental sciences (China)·2011
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: Oct 12, 2025

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis
06:56

Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis

Published on: September 22, 2023

1.3K

Approximate geodesic distance tree filter for cost aggregation.

Yusheng Jin, Hong Zhao, Penghui Bu

    Applied Optics
    |November 22, 2021
    PubMed
    Summary
    This summary is machine-generated.

    This study introduces an approximate geodesic distance tree filter to improve stereo vision disparity computation in textureless areas. The novel method offers linear complexity and preserves disparity map boundaries, outperforming traditional techniques.

    More Related Videos

    Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
    09:44

    Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

    Published on: October 16, 2018

    10.4K
    Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites
    09:05

    Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites

    Published on: June 24, 2019

    8.1K

    Related Experiment Videos

    Last Updated: Oct 12, 2025

    Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis
    06:56

    Author Spotlight: Advancements in X-ray CT Tool Chain for Tree Core Analysis

    Published on: September 22, 2023

    1.3K
    Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
    09:44

    Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon

    Published on: October 16, 2018

    10.4K
    Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites
    09:05

    Measurements of CO2 Fluxes at Non-Ideal Eddy Covariance Sites

    Published on: June 24, 2019

    8.1K

    Area of Science:

    • Computer Vision
    • Image Processing
    • Stereo Vision

    Background:

    • Disparity computation in textureless regions is challenging for stereo vision.
    • Non-local Minimum Spanning Tree (MST) methods struggle with slanted surfaces, noise, and high-texture areas.
    • Window-based methods lack effective information dissemination for disparity calculation.

    Purpose of the Study:

    • To develop a novel filter for accurate disparity computation in textureless regions.
    • To overcome limitations of existing non-local and window-based stereo vision methods.
    • To enhance cost aggregation and preserve disparity map boundaries.

    Main Methods:

    • Proposed an approximate geodesic distance tree filter.
    • Utilized geodesic distance as a pixel similarity metric.
    • Employed recursive filtering in four directions for linear complexity.

    Main Results:

    • The filter effectively handles cost aggregation in textureless regions.
    • Disparity map boundaries are preserved.
    • Demonstrated effectiveness across various applications.

    Conclusions:

    • The approximate geodesic distance tree filter offers a robust solution for stereo vision.
    • Linear complexity and accurate similarity metric address key challenges.
    • The method shows significant advantages over existing approaches for disparity computation.