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Related Concept Videos

Relative Motion Analysis using Rotating Axes01:25

Relative Motion Analysis using Rotating Axes

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 instrumental in...
Relative Motion Analysis - Velocity01:24

Relative Motion Analysis - Velocity

A stroke engine has a slider-crank mechanism that converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider.
When an external force is exerted, it sets the crank into a rotational movement. This, in turn, instigates the motion of the connecting rod, leading to what is referred to as a general plane motion. This process involves two key points - point A on the connecting rod...
Absolute Motion Analysis- General Plane Motion01:24

Absolute Motion Analysis- General Plane Motion

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

Relative Motion Analysis using Rotating Axes-Problem Solving

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...
Curvilinear Motion: Rectangular Components01:23

Curvilinear Motion: Rectangular Components

Curvilinear motion characterizes the movement of a particle or object along a curved path, notably evident when envisioning a car navigating a winding road. If the car starts at point A, its position vector is established within a fixed frame of reference, where the ratio of the position vector to its magnitude signifies the unit vector pointing in the position vector's direction.
As the car advances, its position evolves over time. Quantifying the car's velocity involves computing the time...
Relative Motion Analysis using Rotating Axes - Acceleration01:22

Relative Motion Analysis using Rotating Axes - Acceleration

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. The absolute velocity of point B is determined by adding the absolute velocity of point A, the relative velocity of point B in the rotating frame, and the effects caused by the angular velocity within the rotating frame.
Time differentiation is...

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Related Experiment Videos

JPEG2000-based scalable interactive video (JSIV) with motion compensation.

Aous Thabit Naman1, David Taubman

  • 1School of Electrical Engineering and Telecommunications, University of New South Wales, Kensington, NSW 2052, Australia. aous72@yahoo.com

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|March 18, 2011
PubMed
Summary
This summary is machine-generated.

This study enhances JPEG2000-Based Scalable Interactive Video (JSIV) by incorporating motion compensation for improved prediction. JSIV excels in interactive browsing applications, offering superior adaptability and user experience compared to conventional streaming methods.

Related Experiment Videos

Area of Science:

  • Computer Science
  • Signal Processing
  • Multimedia Systems

Background:

  • Interactive video streaming demands efficient methods for transmitting and rendering video content.
  • Scalable video coding (SVC) and existing interactive schemes have limitations in adaptability and user experience.
  • JPEG2000-Based Scalable Interactive Video (JSIV) was previously proposed, omitting motion compensation.

Purpose of the Study:

  • To investigate the performance of JSIV when motion compensation is integrated for enhanced inter-frame prediction.
  • To evaluate JSIV's effectiveness in interactive video streaming scenarios, particularly for browsing applications.
  • To compare JSIV with SVC in both conventional and interactive streaming contexts.

Main Methods:

  • Storing video sequences as independent JPEG2000 frames for scalability.
  • Employing prediction and conditional replenishment of code-blocks to exploit inter-frame redundancy.
  • Utilizing a loosely coupled server-client architecture with rate-distortion optimization for transmission.

Main Results:

  • JSIV with motion compensation demonstrates improved prediction capabilities.
  • The system offers superior interactivity, adapting to user actions like playback direction changes and zooming.
  • JSIV outperforms SVC in interactive browsing but is outperformed in conventional streaming.

Conclusions:

  • Integrating motion compensation enhances JSIV's predictive efficiency for interactive video streaming.
  • JSIV provides a flexible and adaptive solution for interactive video applications, especially browsing.
  • JSIV presents a trade-off, excelling in interactive scenarios while SVC remains dominant in traditional streaming.