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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Image processing using embedded registration data to determine and compensate for geometric transformation

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G06K-009/00   
미국특허분류(USC) 382/100; 382/280
출원번호 US-0797617 (2004-03-09)
등록번호 US-8243980 (2012-08-14)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 23  인용 특허 : 173
초록

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.

대표
청구항
▼

1. A method comprising: detecting, with a processor of a computing device, one or more registration signals from image data, wherein the image data includes electronic signals, and wherein the detecting includes processing the electronic signals to detect the one or more registration signals in the electronic signals;adding, with the processor of the computing device, two or more image blocks together from the image data to increase a signal-to-noise ratio of the one or more registration signals;determining, with the processor of the computing device, on...

이 특허에 인용된 특허 (173)

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