Video representation, as the name implies, specifies a way of representing a video.In other words, it is about video format which describes the sequence, structure and content of frames that create the moving video image, along with any possible audio or text (closed caption) information.
How is video represented?
Generally, in video processing, video frames are usually represented as a matrix. In our method, we use the luminance information to keep the data in every single frame, with a vector structure.By down-sampling each frame can be further represented as a point in a space of smaller dimension, i.e., R w ? h .
What are different methods to represent motion in a video?
There are three animation styles: 2D, 3D, and stop-motion.
What is computer video data?
Video data normally occurs as continuous, analog signals. In order for a computer to process this video data, we must convert the analog signals to a non-continuous, digital format. In a digital format, the video data can be stored as a series of bits on a hard disk or in computer memory.
What does visual representation mean?
More than simply a picture or detailed illustration, a visual representationoften referred to as a schematic representation or schematic diagramis an accurate depiction of a given problem’s mathematical quantities and relationships.
How video works and is displayed in multimedia?
Digital video clips use frame rates from 12-30 frames per second, with 24 frames per second commonly used. The audio is stored as a separate stream, but kept in close synchronization with the video elements.The amount of memory dedicated to the video display is what controls the perceived quality of the video.
What is visual representation of motion?
The graphical representation of motion is a method of representing a set of variables (physical quantities) pictorially with help of a line graph where one physical quantity depends on the other physical quantity.
How can you describe motion as visual representation?
Motion can be represented by a position-time graph, which plots position relative to the starting point on the y-axis and time on the x-axis. The slope of a position-time graph represents velocity. The steeper the slope is, the faster the motion is changing.
What is motion representation?
Using a graph for a pictorial representation of two sets of data is called a graphical representation of data. One entity is represented on the x-axis of the graph while the other is represented on the y-axis. We use line graphs to describe the motion of an object.
How are videos represented in binary?
Simillarly the videos are flows of images and voice data multiplexed into a sequential flow. The binary as follows: 000010101011010101101010101 would be stored on a hard drive actual microscopic bumps and troughs by changing the polarity of the metalic grains on the disk in specific regions.
How is video stored in a computer?
A video file format is a type of file format for storing digital video data on a computer system. Video is almost always stored using lossy compression to reduce the file size.The coded video and audio inside a video file container (i.e. not headers, footers, and metadata) is called the essence.
How sound is represented on a computer?
Representing sound
Sound needs to be converted into binary for computers to be able to process it. To do this, sound is captured – usually by a microphone – and then converted into a digital signal. If the time samples are then plotted back onto the same graph, it can be seen that the sound wave now looks different.
What is meant by digital video?
Digital video is an electronic representation of moving visual images (video) in the form of encoded digital data. This is in contrast to analog video, which represents moving visual images in the form of analog signals.
How is digital video created?
Digital video is made up of the raw video signal (video stream) and the way it is encoded into a file format (the codec).Compatibility issues with playback of video files can be due to a mismatch between the video and audio codecs being used, resulting in a video signal without sound or sound without a video signal.
What are the main characteristics of digital video?
Digital video is audio/visual in a binary format. Information is presented as a sequence of digital data, rather than in a continuous signal as analog information is.
digital video
- Ease of sharing and storage.
- No degredation of data quality when copied.
- Easy and inexpensive copying.
- The capacity for multicasting.
What is an example of a visual representation?
An image is a visual representation of something that depicts or records visual perception. For example, a picture is similar in appearance to some subject, which provides a depiction of a physical object or a person.For example, in a film camera works the lens focuses an image onto the film surface.
What is an example of representation?
Representation is the act of speaking on someone’s behalf, or depicting or portraying something. When a lawyer acts on behalf of a client, this is an example of representation. When you make a drawing of your mother that is meant to look like her, this is an example of a representation of your mother.
What are the different types of visual representations?
There are three common types of visual representations in science: scientific illustration, infographics, and data or information visualization.
How does video work and display?
The lines are arranged from top to bottom to form the picture. The dots emit light when they are struck by the electron beams inside the display, one for each primary color. To make the beams strike each dot for an equal amount of time, the beams are swept across the display in a constant pattern, called a raster.
What is video camera in multimedia?
A video camera is camera used to make electronic motion pictures. It captures moving images and synchronous sound. Early video cameras were all analog and most modern ones are digital.The signals can be shown at the time, or can be stored in an analog format on magnetic tape.
What is graphical representation of motion class 9?
Graphical representation of motion: The most convenient way of studying the motion of a body is to construct a graph. In a graph: i) The magnitude of displacement, velocity or acceleration are plotted along the ordinates or the Y axis ii) The time is plotted along the abscissa or the X – axis.
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