| 摘要 |
<p>A system for improved video encoding and decoding of scalable bitstreams, used for streaming encoded video signals. A video camera (102) produces an array of pixel representative signals that are coupled to an A-D converter (103) which is coupled to a processor (110) of encoder (105). The processor includes memories (123), clock and timing circuitry (121), I/O functions (118), and a monitor or display (125). An MPEG-4 encoding module (135) includes a DCT (131), and a VLC (133), which may all be implemented in harware or software. An encoded output signal (101) is produced which can be a compressed version of the input signal (90), and requires less bandwidth and/or less memory for strorage. The output signal (101) is, both transmitted (135) over a communication medium (50), to a receiver (162), and sent to a storage medium (138). The decoder (155) includes a processor (160), I/O circuitry (164), memories (168), clock and timing circuitry (173), and a monitor (176), which can display decoded video (100'). An MPEG-4 decoding</p> |
