Abstract
Standard Definition Television (SDTV) signal have a data rate of 270 Mbit/s. This data rate is much too high for broadcasting purposes, which is why they are subjected to compressive process before transmission. The data rate of 270 Mbit/s must be compressed to 2-6 Mbit/s. To compress data, it is possible to remove redundant or irrelevant. In compressing process, it used techniques following: 1) reducing the quantization from 10 to 8 bit, 2) omitting the horizontal and vertical blinking intervals, 3) reducing the vertical color resolution (4:2:0), 4) moving the movies by DPCM technique, 5) transforming technique using Discrete Cosine, 6) scanning technique using Zig-Zag method and 7) coding technique using Haffman method. Thus, the redundancy reductions are not loss in information but irrelevance reductions are few losses in information.
Keywords : Data rate, Compression, Broadcast, Bit, Pixel
Standard Definition Television (SDTV) signal have a data rate of 270 Mbit/s. This data rate is much too high for broadcasting purposes, which is why they are subjected to compressive process before transmission. The data rate of 270 Mbit/s must be compressed to 2-6 Mbit/s. To compress data, it is possible to remove redundant or irrelevant. In compressing process, it used techniques following: 1) reducing the quantization from 10 to 8 bit, 2) omitting the horizontal and vertical blinking intervals, 3) reducing the vertical color resolution (4:2:0), 4) moving the movies by DPCM technique, 5) transforming technique using Discrete Cosine, 6) scanning technique using Zig-Zag method and 7) coding technique using Haffman method. Thus, the redundancy reductions are not loss in information but irrelevance reductions are few losses in information.
Keywords : Data rate, Compression, Broadcast, Bit, Pixel
