Method, apparatus, and computer-readable recording medium for converting document image captured by using camera to dewarped document image
    1.
    发明授权
    Method, apparatus, and computer-readable recording medium for converting document image captured by using camera to dewarped document image 有权
    用于将通过使用照相机拍摄的文档图像转换为杜瓦德文档图像的方法,装置和计算机可读记录介质

    公开(公告)号:US09305211B2

    公开(公告)日:2016-04-05

    申请号:US14499925

    申请日:2014-09-29

    CPC classification number: G06K9/00442 G06K2009/363 G06T3/0031 G06T5/006

    Abstract: A method and apparatus for generating a dewarped document using a document image captured using a camera are provided. The method includes obtaining the document image captures using the camera, extracting text lines from the document image captured using the camera, determining a projection formula to convert positions of respective points constituting the extracted text lines to coordinates projected on a plane of the dewarped document, determining a target function used to calculate a difference between text lines projected on the place of the dewarped document using the projection formula and real text lines, calculating parameters that minimize the target function, and converting the document image to the dewarped document by substituting the calculated parameters into the projection formula.

    Abstract translation: 提供了使用使用相机拍摄的文档图像来生成杜瓦德文档的方法和装置。 该方法包括使用相机获得文档图像捕获,从使用相机拍摄的文档图像中提取文本行,确定投影公式以将构成所提取的文本行的各个点的位置转换为在已抹布的文档的平面上投影的坐标, 确定用于使用投影公式和实际文本行计算投影在杜瓦德文档的位置上的文本行之间的差异的目标函数,计算使目标函数最小化的参数,以及将文档图像转换为杜瓦德文档, 参数进入投影公式。

    Display apparatus and control method thereof

    公开(公告)号:US10331270B2

    公开(公告)日:2019-06-25

    申请号:US15706940

    申请日:2017-09-18

    Abstract: A display apparatus is provided. The display apparatus includes a display and a controller. The display is configured to display an image and comprises a touch sensor for touch input within an assigned sensing section. The controller is configured to perform an operation corresponding to the touch input sensed within the sensing section, and to control the touch sensor to adjust the sensing section based on conditions for adjusting the sensing section. With this, the display apparatus and a control method thereof which can efficiently sense, without lowering the speed of sensing, a touch input based on a plurality of pens or fingers is provided.

    Display apparatus and controlling method thereof

    公开(公告)号:US11301120B2

    公开(公告)日:2022-04-12

    申请号:US17019524

    申请日:2020-09-14

    Abstract: A display apparatus capable of being touched plural times by a single user or being used by a plurality of users is provided. The display apparatus includes: a display; a sensor sensing a user touch on the display; and a processor configured to execute a writing function corresponding to a first touch when the first touch is sensed through the sensor and executing a function corresponding to a second touch of a user at a coordinate value at which the second touch is sensed in response to the second touch when the second touch is sensed in a predetermined range of the first touch based on a coordinate value at which the first touch is sensed during a period in which the first touch is input.

    Multi display device and control method thereof
    10.
    发明授权
    Multi display device and control method thereof 有权
    多显示装置及其控制方法

    公开(公告)号:US09317198B2

    公开(公告)日:2016-04-19

    申请号:US14050871

    申请日:2013-10-10

    Abstract: A multi display apparatus includes a first body comprising a first display, a second body comprising a second display, a hinge to connect the first and second bodies to each other, a first imaging unit provided on the first body, a second imaging unit provided on the second body, and a controller to recognize a user's gesture using a plurality of images photographed at the first and second imaging units, and perform a corresponding control operation in response to the recognized user gesture. The controller recognizes the user's gesture using a movement of a user object within recognition ranges of the respective imaging units. As a result, the operation of the multi display apparatus can be controlled more easily and conveniently.

    Abstract translation: 一种多显示装置,包括:第一主体,包括第一显示器,第二主体,包括第二显示器,将第一和第二主体彼此连接的铰链;设置在第一主体上的第一成像单元, 第二主体以及使用在第一和第二成像单元拍摄的多个图像来识别用户的手势的控制器,并且响应于所识别的用户手势执行相应的控制操作。 控制器使用用户对象在各个成像单元的识别范围内的移动来识别用户的手势。 结果,可以更容易且方便地控制多显示装置的操作。

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