[특허]Method and apparatus for image hand markup detection using morphological techniques

Method and apparatus for image hand markup detection using morphological techniques 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06K-009/34 G06K-009/00
출원번호	US-0794275 (1991-11-19)
발명자 / 주소	Bloomberg Dan S. (Palo Alto) Dasari Lakshmi (Palo Alto CA)
출원인 / 주소	Xerox Corporation (Stamford CT 02)
인용정보	피인용 횟수 : 55 인용 특허 : 0

초록 ▼

An image markup detection device and method identifies and extracts markup lines and regions marked automatically or interactively by a user with an ordinary pen or pencil. Only morphological image processing operations on a scanned source image are used, resulting in the extrapolation of markup lines and marked region. The markup lines are either extracted from the image, or the background information of the image (e.g., text) is removed, leaving only the markup lines. The marked region can then be printed, transferred or otherwise processed.

대표청구항 ▼

A method for processing a scanned first image in a digital computer to identify a location of non-transparent hand marks and hand marked regions, the method comprising the steps of: (a) performing a plurality of morphological OPENING operations on the first image using a first set of structuring elements, each OPENING operation using a different structuring element from said first set, and taking a UNION of the results of said plurality of OPENING operations to form a second image; and (b) creating bounding boxes around mark-up lines in the second image, said bounding boxed identifying the hand marked regions.

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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Method and apparatus for image hand markup detection using morphological techniques 원문보기

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Method and apparatus for image hand markup detection using morphological techniques 원문보기

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