发明授权
- 专利标题: Complex image compression
- 专利标题(中): 复杂的图像压缩
-
申请号: US12004027申请日: 2007-12-20
-
公开(公告)号: US08422799B1公开(公告)日: 2013-04-16
- 发明人: Hanna Elizabeth Witzgall , Timothy F. Settle
- 申请人: Hanna Elizabeth Witzgall , Timothy F. Settle
- 申请人地址: US VA McLean
- 专利权人: Science Applications International Corporation
- 当前专利权人: Science Applications International Corporation
- 当前专利权人地址: US VA McLean
- 代理机构: King & Spalding LLP
- 主分类号: G06K9/36
- IPC分类号: G06K9/36
摘要:
Complex image data is transformed to a holographic representation of the image. A subset of the holographic representation is modeled. Model parameters constitute a compressed image representation. A two-dimensional Fourier transform can be applied to obtain the holographic image. Modeling includes applying an analysis portion of an adaptive analysis/synthesis linear prediction methodology to a subset of the holographic representation to obtain an autoregressive model. Prior to modeling, one-dimensional Fourier transform can be performed on the holographic representation and the linear prediction is one-dimensional. Model parameters are preferably quantized. Embodiments include determining error between the model and the model's input data. There the compressed image representation the error, which also can be quantized. The subset of the holographic representation can be less than all the representation. The subset can be a plurality of complete rows; preferably substantially symmetric about 0 Hz.
信息查询