Invention Grant
US07693345B2 Method and apparatus for error concealment for JPEG 2000 compressed images and data block-based video data
失效
JPEG 2000压缩图像和基于数据块的视频数据的错误隐藏方法和装置
- Patent Title: Method and apparatus for error concealment for JPEG 2000 compressed images and data block-based video data
- Patent Title (中): JPEG 2000压缩图像和基于数据块的视频数据的错误隐藏方法和装置
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Application No.: US11067855Application Date: 2005-02-28
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Publication No.: US07693345B2Publication Date: 2010-04-06
- Inventor: Vinayak Jayaram Pore , Jaya Shrikrishna Panvalkar , Pravin Gangadhar Karandikar , Shantanu Nath , Parag Chaurasia
- Applicant: Vinayak Jayaram Pore , Jaya Shrikrishna Panvalkar , Pravin Gangadhar Karandikar , Shantanu Nath , Parag Chaurasia
- Applicant Address: US CA Santa Clara
- Assignee: NVIDIA Corporation
- Current Assignee: NVIDIA Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Zilka-Kotab, PC
- Main IPC: G06K9/40
- IPC: G06K9/40
Abstract:
A method for concealing errors in compressed images in the JPEG 2000 format diosclosed. JPEG2000 (ISO/IEC 15444) is the new standard for image compression catering to different needs of various applications. This standard is much more advanced than JPEG and is rich in features. An Error concealment method in JPEG 2000 is provided which mainly deals with estimating the lost regions in a Wavelet Transformed image and works in Wavelet Transform Domain. This results in optimum error concealment and therefore, The method is applied before taking Inverse DWT.
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