Invention Grant
- Patent Title: Enhancement of compressed images
- Patent Title (中): 增强压缩图像
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Application No.: US11713278Application Date: 2007-03-01
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Publication No.: US07957599B2Publication Date: 2011-06-07
- Inventor: Kathrin Berkner , Michael J. Gormish , Edward L. Schwartz
- Applicant: Kathrin Berkner , Michael J. Gormish , Edward L. Schwartz
- Applicant Address: JP Tokyo
- Assignee: Ricoh Co., Ltd.
- Current Assignee: Ricoh Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Blakely, Sokoloff, Taylor & Zafman LLP
- Main IPC: G06K9/36
- IPC: G06K9/36 ; G06K9/46 ; G06K9/40 ; G06K9/00
Abstract:
A method and apparatus for enhancing compressed images is described. In one embodiment, the method comprises characterizing quantization noise in reconstructed low pass coefficients generated in response to application of an inverse wavelet transform and removing the quantization noise from the reconstructed low pass coefficients constructed during decoding.
Public/Granted literature
- US20070160304A1 Enhancement of compressed images Public/Granted day:2007-07-12
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