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

Relative Motion Analysis using Rotating Axes-Problem Solving01:29

Relative Motion Analysis using Rotating Axes-Problem Solving

482
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...
482
Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

598
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...
598
Centroid of a Body: Problem Solving01:03

Centroid of a Body: Problem Solving

1.4K
The centroid of a body is a crucial concept in engineering and physics. Finding the centroid of a body can help determine its stability, its balance point, and even its design. In this context, consider a thin wire bent in the form of a quarter circular arc. Polar coordinates are used to calculate the centroid. The wire is first divided into small differential elements of a length equal to the radius multiplied by the differential angle.
The x-coordinates and y-coordinates of each element's...
1.4K
Deformation of Member under Multiple Loadings01:11

Deformation of Member under Multiple Loadings

252
When a rod is made of different materials or has various cross-sections, it must be divided into parts that meet the necessary conditions for determining the deformation. These parts are each characterized by their internal force, cross-sectional area, length, and modulus of elasticity. These parameters are then used to compute the deformation of the entire rod.
In the case of a member with a variable cross-section, the strain is not constant but depends on the position. The deformation of an...
252
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

298
Visualize a drone, with its propellers spinning rapidly, hovering mid-air. The fascinating movements and operations of this drone can be comprehended by applying the principle of general plane motion.
As the drone's propellers rotate, an upward force is generated that counteracts the force of gravity, enabling the drone to lift off from the ground. This initial movement of the drone is along a straight path, representing a form of translational motion. In this phase, every point on the...
298
Rigid Body Equilibrium Problems - I00:49

Rigid Body Equilibrium Problems - I

4.9K
A rigid body is said to be in static equilibrium when the net force and the net torque acting on the system is equal to zero. To solve for rigid body equilibrium problems, do the following steps.
4.9K

You might also read

Related Articles

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

Sort by
Same author

Automated Identification and Segmentation of Diabetic Macular Edema Subtypes Using Deep Learning.

Translational vision science & technology·2026
Same author

Evidence-based summary of optimal home self-management for elderly ostomy patients.

Frontiers in medicine·2026
Same author

Synergistic immobilization of lead and enhanced Solanum nigrum growth by phosphogypsum coupled with phosphate-solubilizing Bacillus megaterium: Roles of Pb mineral transformation and rhizosphere microbiome restructuring.

Journal of hazardous materials·2026
Same author

Performance and ammonium migration in a three-chamber microbial desalination cell under high ammonium loading.

Scientific reports·2026
Same author

Causality analysis of fatty acids, triglycerides and psoriasis based on Mendelian randomization.

Medicine·2026
Same author

Ginsenosides exhibit potential therapeutic potential in photoaging by regulating keratinocyte ferroptosis.

Journal of ginseng research·2026
Same journal

Retraction Note: An automatic and intelligent brain tumor detection using Lee sigma filtered histogram segmentation model.

Soft computing·2026
Same journal

Retraction Note: A review on quantum computing and deep learning algorithms and their applications.

Soft computing·2026
Same journal

Retraction Note: Analyzing fibrous tissue pattern in fibrous dysplasia bone images using deep R-CNN networks for segmentation.

Soft computing·2026
Same journal

Retraction Note: Quantum K-means clustering method for detecting heart disease using quantum circuit approach.

Soft computing·2026
Same journal

Retraction Note: DenseNet-II: an improved deep convolutional neural network for melanoma cancer detection: Nancy Girdhar.

Soft computing·2026
Same journal

Retraction Note: Region of interest-based predictive algorithm for subretinal hemorrhage detection using faster R-CNN.

Soft computing·2026
See all related articles

Related Experiment Video

Updated: Oct 19, 2025

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus
05:57

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus

Published on: April 8, 2019

7.0K

Object pose estimation for robot loading in accommodation space using alpha-shape algorithm.

Qingda Guo1, Lulu Tang2, Jianchi Zhang1

  • 1School of Electronic and Information Engineering, South China University of Technology, Guangzhou, 510640 China.

Soft Computing
|September 27, 2021
PubMed
Summary
This summary is machine-generated.

This study introduces a new robot pose estimation method for logistics automation. It uses an alpha-shape algorithm and improved fruit fly optimization algorithm (FOA) to accurately place objects in changing spaces.

Keywords:
Accommodation spaceAlpha-shape algorithmFruit fly optimizationPose estimationRobot

More Related Videos

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

2.2K
Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

1.8K

Related Experiment Videos

Last Updated: Oct 19, 2025

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus
05:57

Long-term Video Tracking of Cohoused Aquatic Animals: A Case Study of the Daily Locomotor Activity of the Norway Lobster Nephrops norvegicus

Published on: April 8, 2019

7.0K
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

2.2K
Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping
09:41

Estimation of Contact Regions Between Hands and Objects During Human Multi-Digit Grasping

Published on: April 21, 2023

1.8K

Area of Science:

  • Robotics
  • Computer Vision
  • Optimization Algorithms

Background:

  • Robots with visual sensors are vital in logistics for tasks like bin picking.
  • Increasing demand for automated blanking and loading necessitates improved object pose estimation in dynamic environments.

Purpose of the Study:

  • To develop a robust method for object pose estimation in variable accommodation spaces for robotic automation.

Main Methods:

  • Utilized the alpha-shape algorithm to analyze object and space geometry.
  • Employed an improved fruit fly optimization algorithm (FOA) for pose estimation, optimizing alpha-shape volume variation.

Main Results:

  • The alpha-shape algorithm successfully maintained object pose within the accommodation space.
  • The proposed method accurately estimated object pose at the bottom of various common accommodation shapes.

Conclusions:

  • The alpha-shape algorithm combined with improved FOA offers a practical solution for robotic object placement in logistics.
  • This approach surpasses traditional convex hull methods by ensuring objects remain within and correctly positioned in the space.