Both these standards use special hardware & software to store video directly on your hard drive. Video compression is done in various ratios. (eg 10:1,5:1) The higher the ratio, the more video can be stored per meg, and conversly the lower the compression the higher the video quality. See CODEC
This technique (often a MPEG format) compresses video into lower bit rates for easier Internet transmission, often along narrower bandwidths. Video or audio is compressed to shrink file size, ensuring acceptable transfer speed. Compressed video can sometimes be of a noticeably lower quality, but still clear enough to be useful. AVC is the successor to MPEG as the new video compression standard.
Before a video can be displayed on the Internet, it must be converted into a file format that is compatible with the video server being used. This process is called "video compression" because data is compressed to create as small a file as possible.
The process of reducing the bandwidth, or data rate of a video stream. The analog broadcasts of NTSC, PAL and SECAM are in actuality compression systems which reduce the data content of the original source. The primary use is as a means of reducing necessary bandwidth for transmission and space required for storage.
A coding technique used to reduce he bandwidth required for the transmission of video images by reducing redundant information within or between video frames; also called bandwidth compression, data compression or bit rate reduction.
The process through which a complete video file is reduced in size. Video Compression algorithms take advantage of the fact that there is minimal difference from "one" frame to the next. The first frame is encoded and then the sequence of differences between frames. This is also known as "inter-frame" coding or "3D coding".
Mathematical process for reducing the amount of data in a video signal to minimise the cost of transmission or storage (see H.261, H.263, MPEG, JPEG). The quality of compression can vary widely between different manufacturers' equipment depending on the level and complexity of their implementation. Speakerbus always aims to have the best video quality in the market.
Data reduction and compression of an analogue television signals into a digital stream.
The compression of video information to make transmission more efficient.
Compression of sequences of images.
Technology that significantly reduced the bandwidth required to transmit a video signal, making possible the carriage of numerous NTSC quality signals satellite transponder.
Process used to decrease the size of video files that works by recognizing that only a small portion of a video image changes from frame to frame. A video compression program might store the first frame and then store only the changes from one frame to the next. The program assumes the next frames will be almost identical to the first. Before the video is viewed, the program decompresses the video segment. 5.21
n. Reduction of the size of files containing video images stored in digital form. If no compression were done, 24-bit color video at 640 × 480 pixels would occupy almost one megabyte per frame, or over a gigabyte per minute. Video compression can, however, be lossy without affecting the perceived quality of the image. See also lossy compression, Motion JPEG, MPEG.
Video compression refers to reducing the quantity of data used to represent video content without excessively reducing the quality of the picture. It also reduces the number of bits required to store and/or transmit digital media. Compressed video can be transmitted more economically over a smaller carrier.