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Related Concept Videos

Equation of Motion: General Plane motion01:22

Equation of Motion: General Plane motion

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In the context of a rigid body's movement within a general plane, it is important to understand that this motion is typically triggered by external forces or couple moments exerted onto it. This principle can be explained through Newton's second law, which stipulates the translational motion of the body's center of mass along each axis.
Moreover, the body's center of mass experiences a rotational effect as a result of these couple moments. This rotation can be articulated as the...
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Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

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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...
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Equation of Motion: General Plane motion - Problem Solving01:16

Equation of Motion: General Plane motion - Problem Solving

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Consider a lawn roller with a mass of 100 kg, a radius of 0.2 meters, and a radius of gyration of 0.15 meters. A force of 200 N is applied to this roller, angled at 60 degrees from the horizontal plane. What will be the angular acceleration of the lawn roller?
The friction between the roller and the ground is characterized by two coefficients. The static friction coefficient is 0.15, while the kinetic friction coefficient is 0.1. These values are crucial in understanding the interaction between...
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Projectile Motion: Example01:18

Projectile Motion: Example

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The theory of projectile motion is very useful for players of several sports to improve their performance. For example, a javelin thrower needs to throw their javelin in such a way that it travels as far as possible. The javelin thrower takes a short run-up to increase the initial speed of the javelin. The range of a projectile is at its maximum at a 45° angle so javelin throwers try to angle their throw as close to 45° as possible.
When we speak of the range (R) of a projectile on...
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Simple Harmonic Motion and Uniform Circular Motion01:42

Simple Harmonic Motion and Uniform Circular Motion

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While simple harmonic motion and uniform circular motion may be two separate concepts, they correlate and interlink with each other. Simple harmonic motion is an oscillatory motion in a system where the net force can be described by Hooke's law, while uniform circular motion is the motion of an object in a circular path at constant speed.
There is an easy way to produce simple harmonic motion by using uniform circular motion. For instance, consider a ball attached to a uniformly rotating...
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Torque Free Motion01:15

Torque Free Motion

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The torque-free motion refers to the movement of a rigid body in space when no external torques are acting upon it. This type of motion can be observed in environments where there are no external forces or frictions, like in outer space. For example, a rotation of Mars in space is a torque-free motion. Mars is an axisymmetric object, meaning it has an axis of symmetry along which it rotates, designated as the z-axis. The rotating frame of reference is defined such that the center of mass of...
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Related Experiment Video

Updated: Jan 31, 2026

Gain-compensation Methodology for a Sinusoidal Scan of a Galvanometer Mirror in Proportional-Integral-Differential Control Using Pre-emphasis Techniques
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Controllable Motion-Blur Effects in Still Images.

Xuejiao Luo, Nestor Z Salamon, Elmar Eisemann

    IEEE Transactions on Visualization and Computer Graphics
    |December 25, 2018
    PubMed
    Summary

    This study introduces a new post-processing method for adding realistic motion blur to images. The technique uses minimal user input to create virtual motion effects, overcoming limitations of current solutions.

    Area of Science:

    • Computer Vision
    • Digital Image Processing
    • Computational Photography

    Background:

    • Motion blur in photography simulates object movement but is difficult to capture accurately.
    • Existing post-processing methods for motion blur often require complex manual work and produce artifacts.

    Purpose of the Study:

    • To propose a novel method for adding realistic motion blur to single images.
    • To provide users with fine-grained control over motion blur effects in post-processing.
    • To overcome limitations of current motion blur simulation techniques.

    Main Methods:

    • A novel filtering process is employed for virtual motion effect generation.
    • Minimal user input is required to guide the motion blur application.
    • The method carefully handles object boundaries to prevent artifacts.

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    Main Results:

    • The proposed method successfully generates the illusion of photographed motion.
    • Effectiveness is demonstrated on complex examples including multi-directional blur and multiple objects.
    • Artifacts common in standard filtering methods are avoided.

    Conclusions:

    • The developed post-processing solution offers an effective alternative to in-camera motion blur capture.
    • The method enables precise control over motion blur effects, enhancing artistic possibilities.
    • This approach simplifies the creation of sophisticated motion blur in digital images.