Invention Grant
- Patent Title: Image processing using embedded registration data to determine and compensate for geometric transformation
- Patent Title (中): 图像处理使用嵌入式注册数据来确定和补偿几何变换
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Application No.: US10797617Application Date: 2004-03-09
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Publication No.: US08243980B2Publication Date: 2012-08-14
- Inventor: Geoffrey B. Rhoads , Ravi K. Sharma
- Applicant: Geoffrey B. Rhoads , Ravi K. Sharma
- Applicant Address: US OR Beaverton
- Assignee: Digimarc Corporation
- Current Assignee: Digimarc Corporation
- Current Assignee Address: US OR Beaverton
- Main IPC: G06K9/00
- IPC: G06K9/00
Abstract:
Registration data embedded in an image is used to determine and compensate for geometric transformation of the image. The registration data may include frequency domain features of the image that are used to compute the rotation and/or scaling of the image. The registration method may be used in conjunction with digital watermarking and other signal processing applications.
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