Lecture4 Video Flashcards
is the technology of electronically capturing, recording, processing, storing, transmitting and reconstructing a sequence of still images which represent scenes in motion.
Video
technology was first developed for television systems, but has been further developed in many formats to allow for consumer video recording.
Video
can also be viewed on through the Internet as video clips or streaming media clips on computer monitors.
Video
is media that is continuously received by, and normally displayed to, the end-user while it is being delivered by the provider.
STREAMING MEDIA
The distinction is usually applied to media that are distributed over telecommunications networks, as most other delivery systems are either inherently streaming (e.g. radio, television) or inherently non-streaming (e.g. books, video cassettes, audio CDs).
STREAMING MEDIA
The verb ‘to stream’ is also derived from this term, meaning to deliver media in this manner.
STREAMING MEDIA
The word _______ is derived from “web” and “broadcast”
WEBCAST
________ is sending audio and/or video live over the Internet. In essence, _________ can be thought of as broadcasting over the Internet.
WEBCASTING
A ______ uses streaming media technology to take a single content source and distribute it to many simultaneous listeners/viewers.
WEBCAST
What are the Applications of Streaming?
CORPORATE COMMUNICATIONS
DISTANCE LEARNING/E-LEARNING
PRODUCT AND SALES TRAINING
ADVERTISING
ENTERTAINMENT
Using streaming media a webcast can be made from the CEO’s office direct to all the staff, over the corporate WAN/LAN. The VP of Sales can address customers using the company extranet — the opportunities are endless.
CORPORATE COMMUNICATIONS
__________ , often called e-learning, takes a big step forward when you can add video and audio content. One problem that ___________ has always suffered from is a high drop-out rate. In the past it has been limited to communication via e-mail and the telephone. Streaming now presents the opportunity to add video to help to convey facts and information in a far more compelling way. Video can help the student relate to the tutors, giving a boost to the success rates of the courses.
DISTANCE LEARNING/E-LEARNING
For __________ , streaming can replace the traditional slide presentation with a rich media show — slides, video audio, and text — plus the opportunity for interactivity with web meetings.
PRODUCT AND SALES TRAINING
Many surveys have shown that streaming media users spend more online, so they are suitable targets for Internet-delivered ________. Streaming ads are one step further than the banner ___ of the web page. One of the first major applications for ________ was the movie trailer. Streaming is an obvious vehicle, offering on-demand video teasers for upcoming films. The music business has also adopted streaming as part of interactive rich media promotions for new albums.
ADVERTISING
The advent of broadband to the home changes all. With high-performance content delivery networks and ADSL or a cable modem, the viewer can now watch at a quality that is comparable to VHS.
ENTERTAINMENT
5 File Formats
WINDOWS MEDIA
REAL MEDIA
QUICKTIME
MPEG (in particular MPEG-4)
MACROMEDIA FLASH
are short clips of video, usually part of a longer piece. The term is also more loosely used to mean any short video less than the length of a traditional television program.
VIDEO CLIPS
are short _______ format and predominantly found on the internet where the massive influx of new ________ during 2006 has been dubbed as a new phenomenon having a profound impact on both the internet and other forms of media. Sources for __________ include news and sporting events, historical videos, music videos, television programs, film trailers and vlogs.
VIDEO CLIPS
MPEG Standards
MPEG-1
MPEG-2
MPEG-4
This was the first successful standard developed by the multimedia community for audio-visual coding. The standard has long been used for video presentations on CD-ROMs.
MPEG-1
_______ defines a group of Audio and Video (AV) coding and compression standards agreed upon by MPEG (Moving Picture Experts Group). _______ video is used by the Video CD (VCD) format and less commonly by the DVD-Video format.
MPEG-1
_______ is for multimedia CD-ROM presentations
MPEG-1
_______ is the core of most digital television and DVD formats
MPEG-2
A higher resolution, high-quality system for broadcast television, _______ is intended to replace analog composite systems for digital transmission systems.
MPEG-2
he spawning of so many potential multimedia applications, from hand-held wireless devices to high-definition home theaters, led to demands for a much more flexible coding platform. The support of the very low bit rates used for some streaming is one example of the new demands.
MPEG-4
6 VIDEO FORMATS
8mm VIDEO FORMATS
THE DIGITAL8 VIDEO FORMAT (D8)
THE BETAMAX FORMAT
DV VIDEO
THE MiniDV VIDEO FORMAT
THE DIVICAM FORMAT
________refers to a group of three video formats: Video8, Hi8 and Digital8. Together these formats, championed by Sony, played a very important part in the early history of consumer camcorders.
8mm VIDEO FORMATS
Video8 and Hi8 are now obsolete. Digital8 is still considered current but only just — it’s something of a transition format and is unlikely to survive much longer.
8mm VIDEO FORMATS
8mm VIDEO FORMATS group consists of:
VIDEO8
Hi8
DIGITAL8
The _________ , also known as D8, was introduced in the late 1990s and replaced Sony’s analog Video8 and Hi8 formats.
THE Digital8 VIDEO FORMAT (D8)
_______ was developed by Sony and launched in 1975. It was the first commercially successful home video standard. In the famous format war which followed, _______ lost to JVC’s VHS system.
THE BETAMAX FORMAT
________ began the home video revolution. For the first time people were able to do three things:
Record television broadcasts for time-shifting (viewing later)
View cinematic movies at home
View video pornography in privacy
THE BETAMAX FORMAT
_________ is a video standard launched in 1996. It was created by a consortium of companies and given the official name IEC 61834.
DV VIDEO
The DV standard has spawned a few variations, including DVCAM (Sony) and DVCPRO (Panasonic). Consumers know DV in it’s smaller format MiniDV.
DV VIDEO
_________ uses intraframe compression; that is, compression within each frame rather than between consecutive frames. This makes it an ideal format for editing.
DV VIDEO
_________ is a digital video tape format which has become the most popular format for home video cameras. ______ uses the same compression as DV.
THE MINIDV VIDEO FORMAT
_________ can also be used to store other forms of data with the help of appropriate software. _____ tapes can hold about 13GB of data in this way.
THE MINIDV VIDEO FORMAT
________ is a variation of the DV format developed by Sony and aimed at the semi-professional and lower-end professional market.
DVCAM FORMAT
________ uses the same type of tape and compression as DV and MiniDV but at a higher speed (almost 50% faster).
DVCAM FORMAT
MPEG means?
Moving Picture Experts Group
DV means?
Digital Video
VCD means?
Video CD
