Lecture 2 Dr AMIR MOHAMED ELAMIR MOHAMED Content

Lecture 2 Dr. AMIR MOHAMED ELAMIR MOHAMED

Content History of Multimedia content Multimedia characteristics What is multimedia and its components? Multimedia content (details) Multimedia Research Topics and Projects

History of Multimedia Systems. Newspaper were perhaps the first mass communication medium to employ Multimedia -- they used mostly text, graphics, and images. In 1895, Gugliemo Marconi sent his first wireless radio transmission at Pontecchio, Italy.

Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content. Multimedia contrasts with media that use only rudimentary computer displays such as text-only or traditional forms of printed or hand-produced material.

A Multimedia system has four basic characteristics: Multimedia systems must be computer controlled. Multimedia systems are integrated. The information they handle must be represented digitally. The interface to the final presentation of media is usually interactive.

What is multimedia and its components? The various components of multimedia are Text, Audio, Graphics, Video and Animation. All these components work together to represent information in an effective and easy manner. 1 -text. 2 -audio. 3 -graphics. 4 -video 5 -animation.

Components of Multimedia The multiple modalities of text, audio, images, drawings, animation, and video in multimedia are put to use in ways as diverse as: • Video teleconferencing • Distributed lectures for higher education • Telemedicine • Cooperative work environments that allow business people to edit a shared document or schoolchildren to share a single game using two mice that pass control back and forth

Components of Multimedia • Making multimedia components editable - allowing the user side to decide what components, video, graphics, and so on are actually viewed and allowing the client to move components around or delete them - making components distributed

What is data stream in multimedia? Multimedia Data Streams. The information that can be perceived by the human senses is transported through different media, such as text or sound. . A set of related data substreams, each carrying one particular continuous medium, forms a multimedia data stream.

What are audio fundamentals? Audio Fundamentals (53 MB) The information presented here is about how sound works in an audio recording context. In part it's about technologies – and contains some useful techniques – but in the main it is about the practical application of the physics of sound.

What is a sound in multimedia? Sound in multimedia systems. . In the real everyday usage the sound card, or audio device, became the very important part of the system. It is used to record and reproduce the sound, whether the music is listened, the film is shown, or someone is talking with another party through the Internet

How is audio encoded? In the case of audio, a device, listens to the audio, and converts it to a format readable by your computer. Audio encoding is the process of converting your audio signal into a format readable by your computer, which is then can be transmitted through a digital transmission medium.

Image An image, digital image, or still image is a binary representation of visual information, such as drawings, pictures, graphs, logos, or individual video frames. Digital images can be saved electronically on any storage device. The following example image is a modified picture of a computer CPU with a heat sink.

What is image and digital image? A digital image is a numeric representation, normally binary, of a twodimensional image. Depending on whether the image resolution is fixed, it may be of vector or raster type. By itself, the term "digital image" usually refers to raster images or bitmapped images (as opposed to vector images).

What are the types of images? Types of Image Files JPEG (or JPG) - Joint Photographic Experts Group. PNG - Portable Network Graphics. GIF - Graphics Interchange Format. TIFF - Tagged Image File. PSD - Photoshop Document. PDF - Portable Document Format. EPS - Encapsulated Postscript. AI - Adobe Illustrator Document.

Graphics are visual elements often used to point readers and viewers to particular information. . In computing, they are used to create a graphical interface for the user; and graphics are one of the five key elements of multimedia technology.

What is importance of graphics in multimedia? There is a lot of importance of Graphics Designing because it is used in numerous fields like education, applications, entertainment, videos etc. You can communicate the ideas easily and effectively which is useful in creating a strong impression. It supports in brand recognition which is essential for a business.

What is video multimedia? Visual multimedia source that combines a sequence of images to form a moving picture. The video transmits a signal to a screen and processes the order in which the screen captures should be shown. Videos usually have audio components that correspond with the pictures being shown on the screen.

What is digital video in multimedia? 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 with analog signals. Digital video comprises a series of digital images displayed in rapid succession ﺗﻌﺎﻗﺐ ﺍﻟﺴﺮﻳﻊ.

Which format is best for video? The 6 Best Video File Formats and What They're Best For AVI (audio video interleave) and WMV (Windows media video). . . MOV and QT (Quicktime formats). . . MKV (matroska format). . . MP 4. . AVCHD (advanced video coding, high definition). . . FLV and SWF (Flash formats)

Animation is the process of designing, drawing, making layouts and preparation of photographic sequences which are integrated in the multimedia and gaming products. Animation involves the exploitation ﺍﺳﺘﻐﻼﻝ and management of still images to generate the illusion ﻭﻫﻢ of movement.

What are the types of animation in multimedia? All you need to know is right here. Traditional Animation. (2 D, Cel, Hand Drawn) 2 D Animation. (Vector-Based) 3 D Animation. (CGI, Computer Animation) Motion Graphics. (Typography, Animated Logos) Stop Motion. (Claymation, Cut-Outs)

What are the animation techniques? Animation Techniques Traditional Animation (frame by frame) Traditionally most of the animation was done by hand. . Key framing. In this technique, a storyboard is laid out and then the artists draw the major frames of the animation. . Procedural. . Behavioral. . Performance Based (Motion Capture). . . Physically Based (Dynamics)

How does an animation work? Animation works by using an optical illusion. By presenting a sequence of still images in quick enough succession, the viewer interprets them as a continuous moving image. This is the same principle that enables live action film making and projection to work.

Multimedia Research Topics and Projects Multimedia processing and coding. This includes multimedia content analysis, content-based multimedia retrieval, multimedia security, audio/image/video processing, compression, and so on. • Multimedia system support and networking. People look at such topics as network protocols, Internet, operating systems, servers and clients, quality of service (Qo. S), and databases

Multimedia Research Topics and Projects • Multimedia tools, end systems, and applications. These include hypermedia systems, user interfaces, authoring systems, multimodal interaction, and integration: "ubiquity" - web-everywhere devices, multimedia education, including computer supported collaborative learning and design, and applications of virtual environments

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