Image display

申请公布号：

EP0467461(B1)

申请号：

EP19910201810

申请日期：

1991.07.11

申请公布日期：

1997.03.05

申请人：

PHILIPS ELECTRONICS UK LIMITED;PHILIPS ELECTRONICS N.V.

发明人：

RICHARDS, NORMAN DENNIS

分类号：

H04N5/92;H04N5/765;H04N5/85;H04N7/26;H04N9/804;H04N9/82;(IPC1-7):H04N7/24;H04N9/79

主分类号：

H04N5/92

摘要：

<p>A method of encoding an image for CD-I players comprises obtaining the pixel information as a first matrix (M1) of 768x560 pixel component values, decimation filtering (1) the first matrix (M1) to produce a second matrix (M2) of 384x560 pixel component values, encoding (2) the second matrix (M2) to produce a first set of DYUV digital data (RDD1) for storage on a compact disc (SM), applying the digital data (RDD1) to a decoder (3) to form a third matrix (M3) of 384x560 pixel component values, interpolation filtering (4) the third matrix (M3) to form a fourth matrix (M4) of 768x560 pixel component values, forming the difference (5) between the first (M1) and fourth (M4) matrices to produce a fifth matrix (M5) of 768x560 difference values and encoding the fifth matrix (M5) as respective multi-bit and/or run length codes (RDD1) for storage on a compact disc (SM). Compatibility with known hardware (the CD-I standard 'basecase' player) is obtained by encoding negative difference values using the quantization levels in the guard range (0-15) below black level (16, on a scale of zero to 255). &lt;IMAGE&gt;</p>