发明申请
US20060292837A1 Method and apparatus for modelling film grain patterns in the frequency domain
有权
用于在频域中建模胶片颗粒图案的方法和装置
- 专利标题: Method and apparatus for modelling film grain patterns in the frequency domain
- 专利标题(中): 用于在频域中建模胶片颗粒图案的方法和装置
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申请号: US10569318申请日: 2004-04-07
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公开(公告)号: US20060292837A1公开(公告)日: 2006-12-28
- 发明人: Cristina Gomila , Joan Llach
- 申请人: Cristina Gomila , Joan Llach
- 国际申请: PCT/US04/10789 WO 20040407
- 主分类号: H01L21/20
- IPC分类号: H01L21/20
摘要:
Film grain patterns can be modeled in the frequency domain by estimating the cut frequencies that define a 2D band-pass filter. The film grain parameters can be conveyed in accordance with the ITU-T H.264|MPEG-4 AVC standard in an SEI message allowing film grain reinsertion at a decoder.
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