Glossary Terms

Key Term: Video Formats. The file type of a video. Different video formats are used by different programs. A few of the most popular formats for digital video are;Microsoft, QuickTime,Windows, Flash. For example: Microsoft - Key Term: Streaming. A method of relaying data(video and audio material)over a computer network as a steady continuous stream, allowing playback to proceed while subsequent data is being received. Or in other words. - Streaming media is multimedia that is constantly received by and presented to an end-user while being delivered by a provider. Its verb form, "to stream", refers to the process of delivering media in this manner; the term refers to the delivery method of the medium rather than the medium itself. Key Term: File compression. Compression is useful because it helps reduce resources usage, such as data storage space. Because compressed data must be decompressed to be used, this extra processing imposes computational or other costs through decompression, this situation is far from being a free lunch. Data compression is subject to a space-time complexity trade-off. For instance, a compression scheme for video may require expensive hardware for the video to be decompressed fast enough to be viewed as it is being decompressed, and the option to decompress the video in full before watching it may be inconvenient or require additional storage Key Term: Aspect Ratios. The aspect ratio of an image describes the proportional relationship between its width and its height. For standard television has been in use since the invention of moving picture cameras and many computer monitors 4:3 Standard is used. And for the international standard format of HDTV, non-HD digital television and analog widescreen television 16:9 Standard is used. Key Term: Frame Rates. Frame rate (also known as frame frequency) is the frequency (rate) at which an imaging device produces unique consecutive images called frames. The term applies equally well to film and video cameras, computer graphics, and motion capture systems. Frame rate is most often expressed in frames per second (FPS)