发明名称 |
IMAGE ENCODING DEVICE AND METHOD, COMPUTER READABLE RECORDING MEDIUM RECORDING PROGRAM FOR IMAGE ENCODING CONTROL AND DATA PREPARATION DEVICE FOR RECORDING |
摘要 |
PROBLEM TO BE SOLVED: To improve subjective image quality while providing a function for making a quantization characteristic value for each block fluctuate corresponding to the complication of images for each block within a screen. SOLUTION: The switching information of whether or not to use a fluctuating quantization mechanism is recorded in a fluctuating quantization mechanism setting file inside a computer 12 for video encoder control corresponding to the time code of the images. The computer 12 for the video encoder control controls a switch part 44 based on the fluctuating quantization mechanism setting file and turns the fluctuating quantization mechanism on and off. The switch part 44 connects a quantization circuit 33 and a quantization index decision part 42 in the case of turning off the fluctuating quantization mechanism and connects the quantization circuit 33 and a macroblock quantization index decision part 43 for using the fluctuating quantization mechanism in the case of turning on the fluctuating quantization mechanism. |
申请公布号 |
JPH10285592(A) |
申请公布日期 |
1998.10.23 |
申请号 |
JP19970091213 |
申请日期 |
1997.04.09 |
申请人 |
SONY CORP |
发明人 |
MIHARA KANJI |
分类号 |
H04N19/126;H03M7/30;H04N7/24;H04N19/00;H04N19/134;H04N19/136;H04N19/14;H04N19/146;H04N19/152;H04N19/162;H04N19/169;H04N19/176;H04N19/192;H04N19/194;H04N19/423;H04N19/503;H04N19/51;H04N19/61;H04N19/625;H04N19/70;H04N19/85;H04N19/86;H04N19/91 |
主分类号 |
H04N19/126 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|