The reasons for using digital representations of video are multiple; but generally derive from the flexibility and power of digital processing with integrated circuit technology via the reduction of video to the common denominator of the bit, albeit vast umbers of bits. Digital has recently become an alternative to analog for capturing, representing, storing, and transmitting visual sources for selective display. The value of any digital alternative in each case must, of course, be measured against traditional alternatives and other digital alternatives (since there are numerous alternative implementations of digital video that meet current digital video standards).
展开▼
