WO2012097729A1 - 一种手写原笔迹的笔锋实现方法及实现装置 - Google Patents

一种手写原笔迹的笔锋实现方法及实现装置 Download PDF

Info

Publication number
WO2012097729A1
WO2012097729A1 PCT/CN2012/070501 CN2012070501W WO2012097729A1 WO 2012097729 A1 WO2012097729 A1 WO 2012097729A1 CN 2012070501 W CN2012070501 W CN 2012070501W WO 2012097729 A1 WO2012097729 A1 WO 2012097729A1
Authority
WO
WIPO (PCT)
Prior art keywords
point
stroke
points
sampling
center line
Prior art date
Application number
PCT/CN2012/070501
Other languages
English (en)
French (fr)
Inventor
邹学平
周佳
杜国楹
Original Assignee
北京壹人壹本信息科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 北京壹人壹本信息科技有限公司 filed Critical 北京壹人壹本信息科技有限公司
Priority to JP2013549705A priority Critical patent/JP2014508992A/ja
Priority to KR1020137017320A priority patent/KR101585145B1/ko
Priority to US13/981,083 priority patent/US9134821B2/en
Publication of WO2012097729A1 publication Critical patent/WO2012097729A1/zh

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/20—Drawing from basic elements, e.g. lines or circles
    • G06T11/203—Drawing of straight lines or curves

Definitions

  • the invention relates to a handwriting input technology, in particular to a pen front implementation method and implementation device for handwriting original handwriting. Background technique
  • a handwritten tablet As an example, it integrates a handwriting input system, which has replaced the traditional keyboard input, making it easier to meet the needs of mobile office.
  • the user inputs text or graphics on the handwriting input system through the stylus and inputs The text or graphics are displayed directly on the display interface of the tablet.
  • the first type the points passing by the stylus are connected into a line to form a handwriting input handwriting, the handwriting obtained by such processing is not smooth enough, and the real effect of the handwriting stroke is lacking;
  • the second, through curve fitting is to calculate a smooth curve closest to all the sampling points, and then use the curve drawing function of the graphics system to draw the curve. This method is complicated and difficult to implement.
  • the main technical problem to be solved by the present invention is to provide a pen with handwritten original handwriting that is easy to implement
  • the front implementation method and the realization device enable the handwriting written by the user to have the same stroke effect on the traditional paper to improve the user's writing experience.
  • the present invention provides a method for implementing a handwriting original handwriting, comprising the following steps:
  • Sampling detection real-time sampling of the contact and detecting the position information of the sampling point, and obtaining the pen d of the sampling point;
  • Determining a centerline determining a centerline of a stroke between adjacent sampling points, the adjacent sampling points being two endpoints of the centerline;
  • Calculating position information of the key point calculating position information of the key points of the stroke according to the center line and the pen width of the corresponding sampling point, wherein the key points of the stroke include two end points of the center line of the stroke between adjacent sampling points, and Upper and lower end points respectively corresponding to the two end points;
  • Key point classification according to whether the stroke intersects with other strokes, the group determines that the type of the key point of the stroke is a semi-circle, an arc point or a straight line point;
  • Stroke generation The contour of the stroke of the corresponding stroke is generated according to the position information and type of the key points of the stroke, and then filled and displayed.
  • the graphic library module in the pen front generating step, is used to draw a curve and/or a line to generate a stroke outline of the corresponding stroke, and is filled and displayed by the graphic library module.
  • the pen width of the sampling point is obtained according to the pressure value of the sampling point by detecting the pressure value of the sampling point.
  • the specific step of calculating the key position information includes: determining, according to the center line and the pen width d at the end of the center line, corresponding to the ends of the center line respectively Endpoint and lower endpoint.
  • the specific process of determining the upper end point and the lower end point corresponding to the end point of the center line includes: on a line perpendicular to the center line and intersecting the end point of the center line, The distances at the end points of the center line are respectively the upper end and the lower end corresponding to the end points of the center line. Point.
  • the specific process of determining the upper end point and the lower end point corresponding to the end point of the center line includes: determining a unit normal vector perpendicular to the center line, at an end point of the center line, Obtaining the upper end point of the stroke corresponding to the end point of the center line, and obtaining the lower end point of the stroke corresponding to the end point of the center line by (_).
  • the specific process of determining the type of the key point of the stroke includes: if one or both ends of the stroke are not corresponding to other centers The line endpoint, and the upper and lower endpoints corresponding to the centerline endpoint are a set of semi-circles.
  • the specific process of determining the type of the key point of the stroke includes: if the stroke intersects with other strokes, determining the center line of the two intersecting strokes Whether the angle is equal to 180°, and if so, the intersection of the two intersecting strokes is not treated; otherwise, the two outer endpoints of the side of the center line intersection of the two intersecting strokes having an angle greater than 180° are determined as a set of arc points, wherein the two outer end points are respectively an upper end point or a lower end point at the intersection of the two intersecting strokes; the two upper end points and the two lower end points of the stroke between the adjacent sampling points are each determined as A set of straight points.
  • the center line end point in the set of semicircular end points is centered, corresponding to ⁇
  • the received key point is determined as a set of arc points, starting from an upper end point or a lower end point of the set of arc points , with the corresponding radius, draw the arc with the other upper end point or the lower end point of the arc point as the end point;
  • the received key point is determined as a set of straight line points, and one of the upper or lower end points of the set of straight line points is used as a starting point, and the other upper end point or the lower end point of the straight line points is used as an end point to draw a straight line.
  • the invention also provides a pen front realization device for handwriting original handwriting, including a sampling module, configured to sample the contact in real time and detect the position information of the sampling point, and obtain the pen width of the sampling point
  • An operation processing module configured to be connected to the sampling module, configured to determine a center line of a stroke between adjacent sampling points according to position information of the sampling point, where the adjacent sampling point is two end points of the center line And calculating position information of the key points of the stroke according to the center line and the pen width of the corresponding sampling point, and determining whether the key point of the stroke is a semi-circle or a circle according to whether the stroke intersects with other strokes. Arc point or straight line point; and,
  • a graphics library module configured to be connected to the operation processing module, configured to generate a contour of a stroke of the corresponding stroke according to position information and type of the key point, and fill the display;
  • the key points of the stroke include two end points of the center line of the stroke between adjacent sampling points, and upper and lower end points respectively corresponding to the two end points.
  • the sampling module is a pressure sampling module, and the pen width of the sampling point is obtained according to the pressure value of the sampling point by detecting the pressure value of the sampling point.
  • the invention has the beneficial effects that the pen hand implementation method and the realization device of the handwritten original handwriting provided by the invention obtain the position information and the pen width of the sampling point by sampling and detecting the contact in real time, and determine the determined by the adjacent sampling points.
  • the center line of the stroke and then determining the key position information of the corresponding stroke according to the center line and the pen width of the sampling point, and grouping the key points of the stroke into arc points, semi-circles, and straight points according to the key points.
  • the type and position information draws the arc and/or the line to generate the contour of the stroke of the corresponding stroke, and then fills it and displays it.
  • the displayed handwriting has the same stroke as the text written on the paper.
  • the pen front implementation method of the handwritten original handwriting provided by the present invention can directly call the graphic library module to draw a curve and/or a line to generate a stroke outline of the corresponding stroke, and directly call the filling of the graphic library module.
  • the function is filled and displayed, so the method provided by the invention directly realizes the handwritten original handwriting display with the pen front by directly using the functions related to the graphic library module, and only needs to send the position information of the key points of the corresponding stroke and the type thereof to the graphic.
  • the library module is fine.
  • DRAWINGS 1 is a schematic diagram showing the outline of a stroke that does not intersect with other strokes in an embodiment of the present invention
  • FIG. 2 is a schematic diagram 1 of processing an arc point of two intersecting strokes according to an embodiment of the present invention;
  • FIG. 3 is a second schematic diagram of processing arc points of two intersecting strokes according to an embodiment of the present invention.
  • FIG. 4 is a third schematic diagram of processing arc points of two intersecting strokes according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a pen front implementation device for handwriting original handwriting according to the present invention.
  • the pen front implementation method provided by the invention directly draws the outline of the stroke by using the graphic library module, and then fills and displays the drawn stroke outline by means of the filling function of the graphic library, so that the user's writing handwriting has the stroke of the traditional calligraphy writing. To improve the user's writing experience.
  • the pen front implementation device of the handwritten original handwriting includes a sampling module 11, an arithmetic processing module 12, and a graphics library module 13.
  • the sampling module 11 can be a pressure sampling module 11 , which can sample the contact in real time according to the strength of the writing and detect the position information of the sampling point, and obtain the pen of the sampling point.
  • the operation processing module 12 is connected to the sampling module 11 and configured to determine a center line of the stroke between adjacent sampling points according to the position information of the sampling point, and the adjacent sampling point is the two end points of the center line, and according to the center line And the pen width d of the corresponding sampling point calculates the position information of the key point of the stroke, and according to whether the stroke intersects with other strokes, the group determines that the key point of the stroke is a semi-circle, an arc point or a straight point.
  • the key points of the stroke include the two ends of the center line of the stroke between adjacent sampling points, and the points at the two ends Upper and lower endpoints should be.
  • the graphic library module 1 3 is connected to the arithmetic processing module 12 and stores a pair of relationship between the pressure value and the pen width, and is used for generating a stroke contour of the corresponding stroke according to the position information and type of the key point, and filling the display.
  • the implementation method of the pen front in the embodiment is described by using a tablet computer as a carrier, and includes the following steps: sampling detection: real-time sampling of the contact written by the user, detecting the position information and the pressure value of the sampling point, and according to the pressure value of the sampling point Get the pen width of the sample point
  • Determining the centerline Determine the centerline of the stroke between adjacent sampling points.
  • the adjacent sampling points are the two endpoints of the centerline; the centerline can be determined based on the position information of adjacent sampling points.
  • Calculate the position information of the key points Calculate the position information of the key points of the stroke according to the center line and the pen width of the corresponding sampling point.
  • the key points of the stroke include the two ends of the center line of the stroke between adjacent sampling points, and the points at the two ends Corresponding upper and lower endpoints;
  • the group determines that the key points of the stroke determined by the adjacent sampling points are of a semi-circle point, an arc point or a straight line point;
  • the position information and type of the key points of the stroke are drawn by the arc and/or the line to generate the contour of the stroke of the corresponding stroke. For example, when the key point received is a semi-circle, the semi-circle is drawn at the corresponding radius at the position corresponding to the semi-circle of the group.
  • the key type received is a straight line point
  • the graphic library module may be directly called to draw an arc and/or a line to generate a stroke outline of the corresponding stroke, and directly call the filling function of the graphic library module to fill and display the same, so that only
  • the location information of the key points of the corresponding stroke and its type can be sent to the graphics library module, as follows:
  • all the characters are split into a single stroke, and the relationship between the stroke and the stroke is as follows: 1. A single stroke exists alone; 2. One stroke intersects another stroke.
  • the strokes proposed in this embodiment refer to single strokes determined by adjacent sampling points, which are not strokes in Chinese character writing.
  • the contact in the user's writing is sampled in real time to obtain the position information and the pen width of the sampling point, and the position information is the coordinate value of the sampling point, every two The adjacent sampling points determine a stroke, and then the determined strokes are processed according to the position information of the detected sampling points and the pen width. details as follows:
  • the correspondence between the pressure value and the pen width is pre-stored, and the corresponding pen width can be obtained according to the pressure value of the sampling point, for example, the pressure is divided into 1,024 levels, and the pressure value and the pen width are established.
  • One-to-one correspondence its expression can be a function, or a table, etc., according to the detected pressure value, the corresponding pen width can be obtained.
  • the pressure can also be set to a higher level, such as 2048.
  • the sampling frequency of real-time sampling can be set. For example, when writing a script, because the writing speed is relatively slow, a lower sampling frequency can be selected to meet the demand. For example, when writing a book or cursive, the writing speed is faster. , the corresponding higher sampling frequency can be selected to ensure the effect of writing handwriting.
  • the preferred sampling frequency in this embodiment is 120 times per second to ensure the effect of handwriting.
  • the adjacent sampling point is Set a stroke, if the sampling points obtained in chronological order are 1, 2, 3 respectively, the sampling points 1 and 2 are adjacent sampling points.
  • sampling point 1 is the sampling starting point
  • sampling point 2 is sampling.
  • sampling points 2 and 3 are also adjacent sampling points.
  • sampling point 2 is the sampling starting point
  • sampling point 3 is the sampling end point, and so on.
  • the center line of the stroke determined by the adjacent sampling points is determined, and the center line may be determined according to the position information of the adjacent sampling points.
  • the sampling points 1 and 2 are selected as an example for further explanation. Referring to FIG. 1 , the actual pen widths of the sampling points 1 and 2 are respectively and ⁇ , and the coordinates are (xl , yl ) and (x2 , y2 ), respectively. And d 2 determines the width of the stroke determined by the sampling points 1, 2, and the center line L can be obtained according to the coordinate information of the sampling points 1, 2. Please refer to FIG. 2 , in which the sampling points 1 and 2 are the two end points of the center line L.
  • the upper end point and the lower end point of the two ends of the stroke may be determined according to the pen widths and ⁇ of the sampling points 1, 2, and the upper end point and the lower end point are located perpendicular to the center line L. And on the line intersecting the end point of the center line L, and the distance from the end point of the center line L is ⁇ ,
  • the 2nd surface is described by taking the upper end point and the lower end point corresponding to the end point 1 of the center line as an example.
  • the specifics are as follows: Let the unit vector of the center line L be J and rotate J counterclockwise by 90. The unit normal vector of L is obtained, and correspondingly, the corresponding -7 is the vector 7 rotated clockwise by 90. The determined vector. At the end point 1 of the center line, the upper end point of the stroke corresponding to the end point 1 of the center line is obtained by ?7, and the end point 1 of the center line is obtained by ⁇ (- ⁇ )
  • the lower end point of the stroke is obtained, thereby obtaining the position information of the upper end point and the lower end point of the stroke corresponding to the end point 1 of the center line.
  • the direction of the upper end point in the embodiment may also be the clockwise rotation of the unit vector 7 of the center line L.
  • the direction of the vector 7 obtained by 90°, the direction of the lower end point is the direction of the vector -7 obtained by counterclockwise rotation of the unit vector 7 of the center line L by 90°.
  • the determination method of the upper end point and the lower end point corresponding to the end point 2 of the center line is also the same, and the key points of the stroke determined by the sampling point strokes 1, 2 are determined, that is, the center line end point 1, 2 and the center line end point 1.
  • the group determines that the key points of the stroke determined by the adjacent sampling points are semi-circles, arc points or straight lines.
  • the point is as follows: Determine whether the stroke determined by the two adjacent sampling points intersects with other strokes. If one or both ends do not intersect with other strokes, the end that does not intersect with other strokes is the end of the stroke of the stroke ( It can be the pen down point of the stroke, or the pen point.
  • the upper and lower endpoints corresponding to the end of the stroke and the centerline endpoint corresponding to the upper and lower endpoints are determined as a set of semi-circles.
  • the stroke determined by two adjacent sampling points intersects with other strokes, it is determined whether the angle between the center lines of the two intersecting strokes is equal to 180°, and if so, no processing is performed on the intersection of the two intersecting strokes; otherwise, the two intersecting strokes
  • the two outer end points of the side of the center line whose angle is greater than 180° are determined as a set of arc points, and the two outer end points are respectively the upper end point or the lower end point of the intersection point of the two intersecting strokes, and the adjacent two sampling points
  • the two upper end points and the two lower end points of the determined stroke are each a set of straight line points.
  • the end point 1 of the center line L does not intersect the center line of the other strokes.
  • the end point 1 is the end of the stroke of the stroke determined by the sampling points 1, 2, the end point 1 of the center line L, and the corresponding end of the end point 1.
  • the end point and the lower end point are a set of semi-circles; the end point 2 of the center line L intersects the center line of the stroke determined by the sampling points 2, 3, and the two lower end points or the upper end points corresponding to the end point 2 of the center line L are one Group arc points.
  • the two lower end points and the two upper end points corresponding to the strokes determined by the sampling points 1, 2, and 2, respectively, at the end point 2 are on the side where the center line angle is greater than 18 0°, that is, the lower end point 4 and the lower end point 5 is on the outer side of the side, the lower end point 4 and the lower end point 5 are outer end points of the side, so the lower end point 4 and the lower end point 5 are determined as a set of arc points, and similarly, in FIG.
  • the two upper end points 6, 7 of the intersection of the two intersecting strokes are determined as a set of arc points.
  • the two lower end points 8, 9 of the intersecting strokes at the intersection point are also determined as a set of arc points.
  • the two upper end points of the stroke determined by the sampling points 1, 2 are a set of straight points, and the two lower end points of the stroke determined by the sampling points 1, 2 are also a set of straight points, and similarly, the sampling point 2
  • the two upper endpoints of the three determined strokes are a set of straight points, and the two lower endpoints of the strokes determined by the sampling points 2 and 3 are also a set of straight points.
  • the graphic library module can be called to generate the stroke contour of the corresponding stroke, and then the graphic library module generates the generated pencil wheel.
  • the contour is filled to show the handwriting with the traditional writing stroke, as follows:
  • the center line end points in the set of semicircular end points are centered, with the corresponding radius as the starting point of the upper and lower end points in the semicircular end point and
  • the end point draws a semicircle; if the key point received is a set of arc points, the upper or lower end point of the set of arc points is used as the starting point, and the corresponding ⁇ is the radius, and the other of the arc points Upper end or lower
  • the endpoint is an arc for the end point; if the key point is a set of straight points, the upper or lower end of the set of straight points is used as the starting point, and the other upper or lower end of the straight point is The end point draws a straight line.
  • the strokes determined by the sampling points 1, 2, and 3 in Fig. 2 are still taken as an example for further description.
  • the processing of the end of the stroke corresponding to the end point 1 of the center line L is: centered on the end point 1 of the center line L With ⁇ L as the radius, starting from the upper end point corresponding to the end point 1 of the center line L, drawing a semicircle with the lower end point corresponding to the end point 1 2 of the center line L as the end point; or centering on the end point 1 of the center line L, With ⁇ L as the radius,
  • the upper end point corresponding to the end point 1 of the center line L is the end point, and the lower end point corresponding to the end point 1 of the center line L is drawn as a semicircle.
  • the processing of the line width portion of the stroke determined by the sampling points 1, 2 is: starting from one upper end point of the stroke determined by the sampling points 1, 2, drawing a straight line with the other upper end point as the end point, and taking the sampling point 1 2, the lower end of the determined stroke is the starting point, and the other lower end is the ending point.
  • the processing of the arc point is as follows: The end point 2 of the center line L is taken as the center, and the radius is determined by the sampling points 1, 2
  • the lower end point 4 of the stroke is the starting point, and the lower end point 5 of the stroke determined by the sampling points 2, 3 is the end point of the arc, or the end point 2 of the center line L is the center of the circle, and the end point 4 is the end point.
  • End point 5 draws an arc for the starting point, and you can get the stroke outline of the stroke determined by sampling points 1, 2 and sampling points 2, 3. See Figure 2, and then fill it with the graphic library module to display it. .
  • the method for implementing the pen front provided by the invention is easy to implement, and only needs to send the position information and type of the key points of the corresponding stroke to the graphic library module, and the graphic library module can draw the stroke according to the type and position information of the key points. The contour of the pen is then filled to reveal a written stroke with a pen.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Character Discrimination (AREA)
  • Processing Or Creating Images (AREA)
  • User Interface Of Digital Computer (AREA)
  • Image Analysis (AREA)

Description

一种手写原笔迹的笔锋实现方法及实现装置
技术领域
本发明涉及手写输入技术， 具体涉及一种手写原笔迹的笔锋实现方法及实 现装置。 背景技术
随着科技发展的不断进步， 众多带有手写输入系统的电子装置开始进入市 场， 如具有手写功能的手机、 电子书、 平板电脑等。
以手写平板电脑为例， 其集成有手写输入系统， 已取代了传统的键盘输入， 更易全方位满足移动办公需求； 在使用时， 用户通过手写笔在手写输入系统上 输入文字或图形后， 输入的文字或图形就直接显示在平板电脑的显示界面上。
但是， 目前市场上的平板电脑的手写输入系统采用的笔迹处理方法主要有 以下两种：
第一种， 将手写笔所经过的点连成线以形成手写输入的笔迹， 这种处理得 到的笔迹不够平滑， 且缺少手写笔锋的真实效果；
第二种， 通过曲线拟合来实现， 即计算出一条最接近所有采样点的光滑曲 线， 然后使用图形系统的曲线绘制功能画出该曲线， 该方法算法复杂， 实现起 来较难。
于是，迫切需求一种能克服上述缺陷的手写原笔迹的笔锋实现方法。 发明内容
本发明要解决的主要技术问题是， 提供一种筒单易实现的手写原笔迹的笔 锋实现方法及实现装置， 使用户书写出的笔迹具有在传统纸上书写一样的笔锋 效果， 以提高用户的书写体验。
为解决上述技术问题， 本发明提供一种手写原笔迹的笔锋实现方法， 包括 如下步骤：
采样检测： 对触点实时采样并检测出采样点的位置信息， 获取采样点的笔 d；
确定中心线： 确定相邻采样点间的笔划的中心线， 所述相邻采样点为所述 中心线的两个端点；
计算关键点的位置信息：根据所述中心线及相应采样点的笔宽 计算出笔划 的关键点的位置信息， 所述笔划的关键点包括相邻采样点间笔划的中心线的两 端点、 以及与所述两端点分别对应的上、 下端点；
关键点分类： 根据所述笔划是否与其他笔划相交， 分组确定所述笔划的关 键点的类型为半圓点、 圓弧点或直线点；
笔锋生成： 根据所述笔划的关键点的位置信息及类型画弧和 /或连线生成相 应笔划的笔锋轮廓， 然后对其进行填充显示出来。
在本发明的一种实施例中， 在所述笔锋生成步骤中， 通过调用图形库模块 进行画弧和 /或连线生成相应笔划的笔锋轮廓， 并通过图形库模块对其进行填充 显示出来。
在本发明的一种实施例中， 所述采样检测步骤中， 通过检测采样点的压力 值， 根据采样点的压力值获取采样点的笔宽
在本发明的一种实施例中， 所述计算关键点位置信息的具体步骤包括： 根 据所述中心线以及所述中心线端点处的笔宽 d确定与所述中心线两端点分别对 应的上端点和下端点。
在本发明的一种实施例中， 确定所述中心线端点所对应的上端点和下端点 的具体过程包括： 在垂直于所述中心线且与所述中心线端点相交的直线上， 离 所述中心线端点的距离为 的点分别为所述中心线端点所对应的上端点和下端 点。
在本发明的一种实施例中， 确定所述中心线端点所对应的上端点和下端点 的具体过程包括：确定垂直于所述中心线的单位法向量 ,在所述中心线端点处， 以 . ·得到所述中心线端点所对应的笔划的上端点，以 · (_ )得到所述中心线端 点所对应的笔划的下端点。
在本发明的一种实施例中， 所述关键点分类步骤中， 分组确定所述笔划的 关键点的类型的具体过程包括： 如果所述笔划的其中一端或者两端都未与其他 对应的中心线端点、 以及与该中心线端点所对应的上、 下端点为一组半圓点。
在本发明的一种实施例中， 所述关键点分类步骤中， 分组确定所述笔划的 关键点的类型的具体过程包括： 如果所述笔划与其他的笔划相交， 判断两相交 笔划的中心线夹角是否等于 180° , 若是， 则对所述两相交笔划的交点不做任何 处理； 否则， 所述两相交笔划的中心线交点处夹角大于 180° 的一侧的两个外端 点确定为一组圓弧点， 其中， 所述两个外端点分别为所述两相交笔划交点处的 上端点或者下端点； 所述相邻采样点间的笔划的两上端点和两下端点各确定为 一组直线点。
在本发明的一种实施例中， 在所述笔锋生成步骤中， 若接收到的关键点被 确定为一组半圓端点，则以该组半圓端点中的中心线端点为圓心， 以相应的 ^为
2 半径， 以所述半圓端点中的上、 下端点为起始点和终点画半圓。
在本发明的一种实施例中， 在所述笔锋生成步骤中， 若接收到的关键点被 确定为一组圓弧点， 则以该组圓弧点中的一个上端点或者下端点为起点， 以相 应的 为半径， 以所述圓弧点中的另一个上端点或者下端点为终点画圓弧； 若 2
接收到的关键点被确定为一组直线点， 则以该组直线点中的一个上端点或者下 端点为起始点， 以所述直线点中的另一个上端点或者下端点为终点画直线。
本发明还提供一种手写原笔迹的笔锋实现装置， 包括 采样模块， 用于对触点实时采样并检测出采样点的位置信息， 获取采样点 的笔宽
运算处理模块， 与所述采样模块连接， 用于根据所述采样点的位置信息， 确定相邻采样点之间的笔划的中心线， 所述相邻采样点为所述中心线的两个端 点， 并根据所述中心线及相应采样点的笔宽 计算出笔划的关键点的位置信息， 并根据所述笔划是否与其他笔划相交， 分组确定所述笔划的关键点的类型为半 圓点、 圓弧点或直线点； 以及，
图形库模块， 与所述运算处理模块连接， 用于根据所述关键点的位置信息 及类型生成相应笔划的笔锋轮廓， 并填充显示；
所述笔划的关键点包括相邻采样点间笔划的中心线的两端点、 以及与所述 两端点分别对应的上、 下端点。
在本发明的一个实施例中， 所述采样模块为压力采样模块， 通过检测采样 点的压力值， 根据采样点的压力值获取采样点的笔宽 。
本发明的有益效果是： 本发明提供的手写原笔迹的笔锋实现方法及实现装 置， 通过实时的对触点进行采样检测得到采样点的位置信息和笔宽， 并确定相 邻采样点所确定的笔划的中心线， 然后根据该中心线和采样点的笔宽确定出相 应笔划的关键点位置信息， 并将笔划的关键点分组确定为的圓弧点、 半圓点、 以及直线点， 根据关键点的类型及位置信息画弧和 /或连线生成相应笔划的笔锋 轮廓， 然后对其进行填充显示出来， 显示出来的书写笔迹具有像纸上书写出的 文字一样的笔锋。
另外， 本发明提供的手写原笔迹的笔锋实现方法， 在笔锋生成步骤中， 还 可直接调用图形库模块进行画弧和 /或连线生成相应笔划的笔锋轮廓， 并直接调 用图形库模块的填充功能对其进行填充显示出来， 因此本发明提供的方法直接 利用图形库模块相关的功能即可实现具有笔锋的手写原笔迹显示， 只需将相应 笔划的关键点的位置信息以及其类型发送给图形库模块即可。 附图说明 图 1 为本发明一种实施例中未与其他笔划相交的笔划的轮廓示意图； 图 2为本发明一种实施例中两相交笔划的圓弧点处理示意图一；
图 3为本发明一种实施例中两相交笔划的圓弧点处理示意图二；
图 4为本发明一种实施例中两相交笔划的圓弧点处理示意图三；
图 5为本发明手写原笔迹的笔锋实现装置的示意框图。
具体实施方式
几乎所有的图形库模块都提供了画直线、 折线、 圓弧等功能， 并具有相应 的填充功能， 但是图形库模块所画出的曲线的线宽都是固定的， 无法形成自然 的笔锋效果。 本发明提供的笔锋实现方法， 直接利用图形库模块绘制笔划的轮 廓， 然后借助图形库的填充功能将绘制出的笔划轮廓进行填充并显示出来， 从 而使用户的书写笔迹具有传统书法书写的笔锋， 以提高用户的书写体验。
下面通过具体实施方式结合附图对本发明作进一步详细说明。 在书写过程中， 在书写不同的笔划过程时， 通常会施加不同的压力， 如在 落笔处较重， 在起笔处较轻， 通过压力的改变， 可改变书写笔划的粗细， 从而 显示出笔锋效果。
如图 5所示， 本实施例中， 该手写原笔迹的笔锋实现装置包括采样模块 11、 运算处理模块 12以及图形库模块 13。 该采样模块 11可以为压力采样模块 11 , 根据书写的力度对触点实时采样并检测出采样点的位置信息， 获取采样点的笔
。
该运算处理模块 12 , 与采样模块 11连接， 用于根据采样点的位置信息， 确 定相邻采样点之间的笔划的中心线， 相邻采样点为中心线的两个端点， 并根据 中心线及相应采样点的笔宽 d计算出笔划的关键点的位置信息，并根据笔划是否 与其他笔划相交， 分组确定笔划的关键点的类型为半圓点、 圓弧点或直线点。 笔划的关键点包括相邻采样点间笔划的中心线的两端点、 以及与两端点分别对 应的上、 下端点。
该图形库模块 1 3 , 与运算处理模块 12连接， 存储有压力值与笔宽的一一对 应关系， 用于根据关键点的位置信息及类型生成相应笔划的笔锋轮廓， 并填充 显示。 本实施例中笔锋的实现方法以平板电脑为载体进行说明， 包括以下步骤： 采样检测： 对用户书写的触点实时采样， 检测出采样点的位置信息和压力 值， 并根据采样点的压力值获取采样点的笔宽
确定中心线： 确定相邻采样点间的笔划的中心线， 相邻采样点为所述中心 线的两个端点； 中心线可根据相邻采样点的位置信息确定。
计算关键点的位置信息： 根据中心线及相应采样点的笔宽计算出笔划的关 键点的位置信息， 笔划的关键点包括相邻采样点间笔划的中心线的两端点、 以 及与两端点分别对应的上、 下端点；
关键点分类： 根据相邻采样点所确定的笔划是否与其他笔划相交， 分组确 定上述相邻采样点所确定的笔划的关键点的类型为半圓点、 圓弧点或直线点； 笔锋生成： 根据笔划的关键点的位置信息及类型画弧和 /或连线生成相应笔 划的笔锋轮廓， 如当接收到的关键点为半圓点时， 则在该组半圓点对应的位置 以相应的半径 画半圓， 当接收到的关键点类型为直线点时， 则以该组直线点
2
内的相应的起始点和终点画直线， 当接收到的关键点为圓弧点时， 则在该组圓 弧点的位置以相应的半径 画圓弧以形成笔划的轮廓， 然后对其进行填充显示
2
出来。
本实施例的笔锋生成步骤中， 可直接调用图形库模块进行画弧和 /或连线生 成相应笔划的笔锋轮廓， 并直接调用图形库模块的填充功能对其进行填充显示 出来， 因此只需将相应笔划的关键点的位置信息及其类型发送给图形库模块即 可， 具体如下： 在本实施例中， 将文字全都拆成单个笔划， 笔划与笔划之间的关系无非有 以下两种： 1、 单个笔划单独存在； 2、 一个笔划与另一个笔划相交。 本实施例 所提出的笔划是指由相邻采样点确定的单笔划， 并非汉字书写中所指的笔划， 即使是弯、 折、 钩等汉字笔划也分解为多个连续的、 由采样起点和采样终点确 定的单笔划。 针对上述情况， 单个笔划单独存在时， 需处理笔划实时变化的宽 度以及笔划的两个端点， 即通过图形库模块画出来的笔划轮廓由两条直线和两 个半圓组成， 请参见图 1 ; 当笔划之间相交时， 还需处理笔划相交的交点， 即还 需对两相交笔划的中心线的交点处做相应的处理， 以使两相交笔划的交点处能 平滑过渡。
由于在书写过程中， 笔划的粗细在实时变化， 因此本实施例中实时对用户 书写时的触点进行采样以获得采样点的位置信息和笔宽， 位置信息为采样点的 坐标值， 每两个相邻采样点确定一个笔划， 然后根据检测到的采样点的位置信 息以及笔宽， 对所确定的笔划进行相应的处理。 具体如下：
在电脑存储装置中， 预先存储压力值与笔宽的对应关系， 根据采样点的压 力值的大小即可得到相应的笔宽， 如将压力分为 1 024级， 并建立压力值与笔宽 的一一对应关系， 其表现形式可为函数， 也可为表格等， 根据检测到的压力值， 即可获得相应的笔宽。 为了获取更高的精度， 也可将压力设置为更高的等级， 如可设置为 2048级。
根据实际情况可设置实时采样的采样频率， 比如当书写楷书时， 由于书写 的速度相对较慢， 可选取较低的采样频率即可满足需求， 如书写行书或者草书 时， 其书写的速度较快， 相应的可选择较高的采样频率， 以保证书写笔迹的效 果。 本实施例中优选的采样频率为每秒钟 120次， 以保证笔迹的效果。
根据选择好的采样频率对用户书写时的触点进行采样检测， 相邻采样点确 定一笔划， 如按时间顺序采得的采样点分别为 1、 2、 3时， 采样点 1、 2为相邻 的采样点，确定笔划时，采样点 1为采样起点， 采样点 2为采样终点，采样点 2、 3也为相邻的采样点，确定笔划时，采样点 2为采样起点，采样点 3为采样终点， 依次类推。
然后根据采样检测步骤得到的相邻采样点确定上述相邻采样点所确定的笔 划的中心线， 中心线可根据相邻采样点的位置信息确定。 本实施例中选取采样 点 1、 2为例做进一步说明，请参见图 1 , 采样点 1、 2的实际笔宽分别为 和 ^， 坐标分别为 （xl , yl )和（x2 , y2 ), 和 d2确定了采样点 1、 2 所确定的笔划 的宽度， 根据采样点 1、 2的坐标信息可得到中心线 L。 请参见图 2 , 其中， 采 样点 1、 2为中心线 L的两端点。
得到采样点 1、 2所确定笔划的中心线 L之后， 可根据采样点 1、 2的笔宽 和 ^确定该笔划两端的上端点和下端点， 上述上端点和下端点位于垂直于中心 线 L并与中心线 L的端点相交的直线上， 且距离中心线 L端点的距离为 ^ , 下
2 面以中心线端点 1 所对应的上端点和下端点为例进行说明， 具体如下： 设中心 线 L的单位向量为 J , 将 J逆时针旋转 90。 得到 L的单位法向量 7 , 相应的， 相 应的 -7为向量 7顺时针旋转 90。 所确定的向量。 在中心线端点 1处， 以 ·7得 到中心线端点 1所对应的笔划的上端点， 以 Α·(-ί)得到中心线端点 1所对应的
2
笔划的下端点， 从而得到中心线端点 1 所对应的笔划的上端点以及下端点的位 置信息，相应的， 本实施例中的上端点的方向也可为中心线 L的单位向量 7顺时 针转动 90° 所得到的向量 7的方向，下端点的方向为中心线 L的单位向量 7的逆 时针转动 90° 所得到的向量 -7的方向。 中心线端点 2所对应的上端点和下端点 的确定方法也同上， 采样点笔划 1、 2所确定的笔划的关键点就确定出来了， 即 为中心线端点 1、 2以及中心线端点 1、 2分别对应的上端点和下端点。 在确定了上述关键点的位置信息之后， 根据相邻采样点所确定的笔划是否 与其他笔划相交， 分组确定相邻采样点所确定的笔划的关键点的类型为半圓点、 圓弧点或直线点， 具体如下： 判断相邻两采样点所确定的笔划是否与其他的笔 划相交， 如果其中一端或者两端都未与其他笔划相交， 则未与其他笔划相交的 端为该笔划的笔划末端（可为笔划的落笔点， 也可为起笔点）， 笔划末端所对应 的上、 下端点以及与上、 下端点所对应的中心线端点被确定为一组半圓点。 如 果相邻两采样点所确定的笔划与其他的笔划相交， 判断两相交笔划的中心线的 夹角是否等于 180° , 若是， 则对两相交笔划的交点不做任何处理， 否则， 两相 交笔划的中心线的夹角大于 180° 的一侧的两个外端点被确定为一组圓弧点，上 述两个外端点分别为两相交笔划交点处的上端点或者下端点， 相邻两采样点所 确定的笔划的两上端点和两下端点各为一组直线点。 下面以采样点 1、 2和 2、 3 所确定的笔划为例进一步说明：
请见图 2 , 中心线 L的端点 1未与其他笔划的中心线相交， 该端点 1为采样 点 1、 2所确定的笔划的笔划末端， 中心线 L的端点 1以及端点 1所对应的上端 点和下端点为一组半圓点； 中心线 L的端点 2与采样点 2、 3所确定的笔划的中 心线相交， 则中心线 L的端点 2所对应的两个下端点或者上端点为一组圓弧点。 在图 2中， 采样点 1、 2和 2、 3分别确定的笔划在端点 2处所对应的两个下端 点和两个上端点都在中心线夹角大于 18 0° 的一侧，即下端点 4和下端点 5在该 侧的外侧， 下端点 4和下端点 5为该侧的外端点， 因此下端点 4和下端点 5被 确定为一组圓弧点， 同理， 在图 3中， 两相交笔划在交点处的两上端点 6、 7被 确定为一组圓弧点， 在图 4中， 两相交笔划在交点处的两下端点 8、 9也被确定 为一组圓弧点。 图 2中， 采样点 1、 2所确定的笔划的两个上端点为一组直线点， 采样点 1、 2所确定的笔划的两个下端点也为一组直线点，同样， 采样点 2、 3所 确定的笔划的两个上端点为一组直线点， 采样点 2、 3所确定的笔划的两个下端 点也为一组直线点。
将笔划的关键点按上述方式分类后， 根据关键点的类型及其位置信息， 调 用图形库模块即可生成相应笔划的笔锋轮廓， 然后图形库模块对生成的笔锋轮 廓进行填充显示出带有传统的书写笔锋的笔迹， 具体如下：
图像库模块接收到的关键点若为一组半圓端点， 则以该组半圓端点中的中 心线端点为圓心， 以相应的 为半径， 以半圓端点中的上、 下端点为起始点和
2
终点画半圓； 若接收到的关键点为一组圓弧点， 则以该组圓弧点中的一个上端 点或者下端点为起点， 以相应的 ^为半径， 以圓弧点中的另一个上端点或者下
2
端点为终点画圓弧； 若接收到的关键点为一组直线点， 则以该组直线点中的一 个上端点或者下端点为起始点， 以直线点中的另一个上端点或者下端点为终点 画直线。
现仍以图 2 中的采样点 1、 2、 3所确定的笔划为例做进一步的说明， 中心 线 L的端点 1所对应的笔划末端的处理过程为： 以中心线 L的端点 1为圓心， 以^ L为半径， 以中心线 L的端点 1对应的上端点为起始点， 以中心线 L的端点 1 2 对应的下端点为终点画半圓； 或者以中心线 L的端点 1为圓心， 以^ L为半径，
2
以中心线 L的端点 1对应的上端点为终点， 以中心线 L的端点 1对应的下端点 为起始点画半圓。
对采样点 1、 2确定的笔划直线线宽部分的处理过程为： 以采样点 1、 2确 定的笔划的一个上端点为起始点，以另一个上端点为终点画直线，并以采样点 1、 2确定的笔划的一个下端点为起始点， 以另一个下端点为终点画直线。
采样点 1、 2和采样点 2、 3所确定的笔划相交， 上述两相交笔划的中心线 夹角不为 180° , 因此中心线 L的端点 2处对应一组圓弧点， 对该组圓弧点的处 理具体如下： 以中心线 L的端点 2为圓心， 以 为半径，以采样点 1、 2所确定
2
的笔划的下端点 4为起始点， 以采样点 2、 3所确定的笔划的下端点 5为终点画 圓弧， 或者以中心线 L的端点 2为圓心， 以 为半径，以下端点 4为终点， 以下
2
端点 5为起始点画圓弧， 即可得到采样点 1、 2和采样点 2、 3所确定的笔划的 笔锋轮廓， 请参见图 2 , 然后利用图形库模块对其进行相应的填充以显示出来。 本发明提供的笔锋实现方法筒单易行， 只需将相应笔划的关键点的位置信 息以及类型发送给图形库模块即可， 图形库模块即可根据关键点的类型及位置 信息画出笔划的笔锋轮廓， 然后对其进行填充即可显示出具有笔锋的书写笔迹。
以上内容是结合具体的实施方式对本发明所作的进一步详细说明， 不能认 定本发明的具体实施只局限于这些说明； 因此， 对于本发明所属技术领域的普 通技术人员来说， 在不脱离本发明构思的前提下， 还可以做出若干筒单推演或 替换， 都应当视为属于本发明的保护范围。

Claims

权 利 要 求
1. 一种手写原笔迹的笔锋实现方法， 其特征在于， 包括如下步骤： 采样检测： 对触点实时采样并检测出采样点的位置信息， 获取采样点的笔 d；
确定中心线： 确定相邻采样点之间的笔划的中心线， 所述相邻采样点为所 述中心线的两个端点；
计算关键点的位置信息：根据所述中心线及相应采样点的笔宽 计算出笔划 的关键点的位置信息， 所述笔划的关键点包括相邻采样点间笔划的中心线的两 端点、 以及与所述两端点分别对应的上、 下端点；
关键点分类： 根据所述笔划是否与其他笔划相交， 分组确定所述笔划的关 键点的类型为半圓点、 圓弧点或直线点；
笔锋生成： 根据所述笔划的关键点的位置信息及类型画弧和 /或连线生成相 应笔划的笔锋轮廓， 然后对其进行填充显示出来。
2. 如权利要求 1 所述的方法， 其特征在于， 在所述笔锋生成步骤中， 通过调用图形库模块进行画弧和 /或连线生成相应笔划的笔锋轮廓， 并通过图形 库模块对其进行填充显示出来。
3. 如权利要求 1 所述的方法， 其特征在于， 所述采样检测步骤中， 通 过检测采样点的压力值， 根据采样点的压力值获取采样点的笔宽 d。
4. 如权利要求 1 所述的方法， 其特征在于， 所述计算关键点位置信息 的具体步骤包括：根据所述中心线以及所述中心线端点处的笔宽 d确定与所述中 心线两端点分别对应的上端点和下端点。
5. 如权利要求 4 所述的方法， 其特征在于， 确定所述中心线端点所对 应的上端点和下端点的具体过程包括： 在垂直于所述中心线且与所述中心线端 点相交的直线上， 离所述中心线端点的距离为 ^的点分别为所述中心线端点所
2
对应的上端点和下端点。
6. 如权利要求 5 所述的方法， 其特征在于， 确定所述中心线端点所对 应的上端点和下端点的具体过程包括： 确定垂直于所述中心线的单位法向量 ί , 在所述中心线端点处， 以 ·ί得到所述中心线端点所对应的笔划的上端点， 以
2 · (- )得到所述中心线端点所对应的笔划的下端点。
7. 如权利要求 1-6任一项所述的方法， 其特征在于， 所述关键点分类 步骤中， 分组确定所述笔划的关键点的类型的具体过程包括： 如果所述笔划的 其中一端或者两端都未与其他笔划相交， 则未与其他笔划相交的端为所述笔划 的笔划末端， 所述笔划末端所对应的中心线端点、 以及与该中心线端点所对应 的上、 下端点为一组半圓点。
8. 如权利要求 1-6任一项所述的方法， 其特征在于， 所述关键点分类 步骤中， 分组确定所述笔划的关键点的类型的具体过程包括： 如果所述笔划与 其他的笔划相交， 判断两相交笔划的中心线夹角是否等于 180° , 若是， 则对所 述两相交笔划的交点不做任何处理； 否则， 所述两相交笔划的中心线交点处夹 角大于 180° 的一侧的两个外端点确定为一组圓弧点， 其中， 所述两个外端点分 别为所述两相交笔划交点处的上端点或者下端点； 所述相邻采样点间的笔划的 两上端点和两下端点各确定为一组直线点。
9. 如权利要求 7 所述的方法， 其特征在于， 在所述笔锋生成步骤中， 若接收到的关键点被确定为一组半圓端点， 则以该组半圓端点中的中心线端点 为圓心， 以相应的 为半径， 以所述半圓端点中的上、 下端点为起始点和终点
2
画半圓。
10. 如权利要求 8 所述的方法， 其特征在于， 在所述笔锋生成步骤中， 若接收到的关键点被确定为一组圓弧点， 则以该组圓弧点中的一个上端点或者 下端点为起点， 以相应的 ^为半径， 以所述圓弧点中的另一个上端点或者下端
2
点为终点画圓弧； 若接收到的关键点被确定为一组直线点， 则以该组直线点中 的一个上端点或者下端点为起始点， 以所述直线点中的另一个上端点或者下端 点为终点画直线。
11. 一种手写原笔迹的笔锋实现装置， 其特征在于， 包括
采样模块， 用于对触点实时采样并检测出采样点的位置信息， 获取采样点 的笔宽^
运算处理模块， 与所述采样模块连接， 用于根据所述采样点的位置信息， 确定相邻采样点之间的笔划的中心线， 所述相邻采样点为所述中心线的两个端 点， 并根据所述中心线及相应采样点的笔宽 计算出笔划的关键点的位置信息， 并根据所述笔划是否与其他笔划相交， 分组确定所述笔划的关键点的类型为半 圓点、 圓弧点或直线点； 以及，
图形库模块， 与所述运算处理模块连接， 用于根据所述关键点的位置信息 及类型生成相应笔划的笔锋轮廓， 并填充显示；
所述笔划的关键点包括相邻采样点间笔划的中心线的两端点、 以及与所述 两端点分别对应的上、 下端点。
12. 根据权利要求 11所述的手写原笔迹的笔锋实现装置， 其特征在于， 所述采样模块为压力采样模块， 通过检测采样点的压力值， 根据采样点的压力 值获取采样点的笔宽
PCT/CN2012/070501 2011-01-20 2012-01-18 一种手写原笔迹的笔锋实现方法及实现装置 WO2012097729A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2013549705A JP2014508992A (ja) 2011-01-20 2012-01-18 オリジナル手書き筆跡の筆鋒実現方法及び実現装置
KR1020137017320A KR101585145B1 (ko) 2011-01-20 2012-01-18 오리지널 수기 필적의 필봉 실현하기 위한 방법 및 그 실현 장치
US13/981,083 US9134821B2 (en) 2011-01-20 2012-01-18 Method and device for implemeting original calligraphy of handwriting

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201110022935 CN102081803B (zh) 2011-01-20 2011-01-20 一种手写原笔迹的笔锋实现方法
CN201110022935.6 2011-01-20

Publications (1)

Publication Number Publication Date
WO2012097729A1 true WO2012097729A1 (zh) 2012-07-26

Family

ID=44087752

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/070501 WO2012097729A1 (zh) 2011-01-20 2012-01-18 一种手写原笔迹的笔锋实现方法及实现装置

Country Status (6)

Country Link
US (1) US9134821B2 (zh)
JP (1) JP2014508992A (zh)
KR (1) KR101585145B1 (zh)
CN (1) CN102081803B (zh)
TW (1) TW201232424A (zh)
WO (1) WO2012097729A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110610532A (zh) * 2019-08-12 2019-12-24 安徽石轩文化科技有限公司 一种水墨流动性元素动画特效制作方法
CN111223165A (zh) * 2020-01-03 2020-06-02 福建升腾资讯有限公司 一种生成无锯的签字图片的方法、装置和设备
CN115291789A (zh) * 2022-08-03 2022-11-04 青岛海信移动通信技术股份有限公司 一种笔迹拟合方法、装置、终端设备和介质

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102081803B (zh) * 2011-01-20 2012-10-10 北京壹人壹本信息科技有限公司 一种手写原笔迹的笔锋实现方法
US9183428B2 (en) * 2011-01-31 2015-11-10 Beijing Ereneben Information Technology Co., Ltd. Method and device for implementing original handwriting trace, and electronic device
CN103186235B (zh) * 2011-12-31 2015-11-25 北大方正集团有限公司 一种手写输入的处理方法及装置
CN103268626A (zh) * 2013-04-11 2013-08-28 江苏省在这里数字科技有限公司 基于gpu的地图线形符号绘制方法及系统
CN103295252A (zh) * 2013-05-15 2013-09-11 广东威创视讯科技股份有限公司 基于OpenGL的线段绘制交点的平滑处理方法及系统
JP6125333B2 (ja) * 2013-05-31 2017-05-10 株式会社東芝 検索装置、方法及びプログラム
BR112016009938B1 (pt) 2013-11-19 2022-01-25 Wacom Co., Ltd Métodos de geração de dados de tinta e de desenho para renderização de dados de imagem
CN104133630A (zh) * 2014-07-23 2014-11-05 天脉聚源（北京）教育科技有限公司 笔画同步方法和装置
CN105808083B (zh) * 2014-12-30 2022-02-11 鸿合科技股份有限公司 一种显示方法与装置
CN105405159A (zh) * 2015-10-27 2016-03-16 深圳市东向同人科技有限公司 一种书写笔迹的显示方法及装置
CN105354871A (zh) * 2015-10-27 2016-02-24 深圳市东向同人科技有限公司 一种书写笔迹的显示方法
CN106530397B (zh) * 2016-10-13 2019-06-11 成都希盟泰克科技发展有限公司 一种基于稀疏剖面地质轮廓线的地质面三维重建方法
CN107240330A (zh) * 2017-06-27 2017-10-10 北京新国人智慧科技股份有限公司 练字笔迹显示方法及系统、智能练字终端及智能练字系统
CN107526526B (zh) * 2017-09-19 2020-05-05 广州视源电子科技股份有限公司 确定压感笔迹区域的方法及装置
CN108628532A (zh) * 2018-04-28 2018-10-09 掌阅科技股份有限公司 折线笔迹的绘制方法、计算设备及计算机存储介质
CN110263636A (zh) * 2019-05-15 2019-09-20 赞同科技股份有限公司 一种无损笔迹还原方法及系统
CN110321054B (zh) * 2019-06-20 2022-08-16 广州视源电子科技股份有限公司 毛笔笔迹绘制方法、装置、设备及可读存储介质
CN110443234A (zh) * 2019-06-29 2019-11-12 万翼科技有限公司 数据处理方法及相关产品
CN110458238A (zh) * 2019-08-02 2019-11-15 南通使爱智能科技有限公司 一种证件圆弧点检测和定位的方法及系统
CN110531875B (zh) * 2019-08-21 2023-12-12 华诺科技武汉有限公司 书写笔锋的生成方法、终端设备及存储介质
CN111142770B (zh) * 2019-12-23 2023-04-25 江苏欧帝电子科技有限公司 一种生成笔锋的方法及处理装置
CN111325814A (zh) * 2020-02-20 2020-06-23 成都卫士通信息产业股份有限公司 一种仿真笔迹拟合方法、装置、设备及可读存储介质
CN111857380A (zh) * 2020-07-28 2020-10-30 江西金格科技股份有限公司 一种手写原笔迹曲线平滑的实现方法
CN112328102A (zh) * 2020-10-16 2021-02-05 深圳市千分一智能技术有限公司 笔锋实现方法、装置、设备及可读存储介质
CN112929582A (zh) * 2021-02-04 2021-06-08 北京字跳网络技术有限公司 一种特效展示方法、装置、设备及介质
WO2024092432A1 (zh) * 2022-10-31 2024-05-10 京东方科技集团股份有限公司 显示设备、笔迹显示及笔迹轮廓确定的方法
CN115723570B (zh) * 2022-12-27 2024-01-26 无锡车联天下信息技术有限公司 一种汽车智能座舱显示屏中的油耗量展示方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101118650A (zh) * 2007-09-14 2008-02-06 广东威创日新电子有限公司 一种笔锋即时实现方法
CN101226441A (zh) * 2007-01-17 2008-07-23 北京书生国际信息技术有限公司 一种实现笔锋效果的手写输入方法
CN102081803A (zh) * 2011-01-20 2011-06-01 周佳 一种手写原笔迹的笔锋实现方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4739317A (en) * 1984-03-30 1988-04-19 International Business Machines Corporation Draw graphics capabilities
EP0307667B1 (en) * 1987-08-24 1994-04-20 Wacom Company, Ltd. Coordinate input system with input pen
US5155813A (en) * 1990-01-08 1992-10-13 Wang Laboratories, Inc. Computer apparatus for brush styled writing
US5434959A (en) * 1992-02-11 1995-07-18 Macromedia, Inc. System and method of generating variable width lines within a graphics system
US5594855A (en) * 1992-02-11 1997-01-14 Macromedia, Inc. System and method for generating real time calligraphic curves
JPH06259522A (ja) * 1993-03-08 1994-09-16 Matsushita Electric Ind Co Ltd 手書き画像表示装置
US6909430B2 (en) 2001-08-01 2005-06-21 Microsoft Corporation Rendering ink strokes of variable width and angle
TWI229844B (en) * 2003-05-08 2005-03-21 Acer Inc Recognition method to integrate speech input and handwritten input, and system thereof
JP4248325B2 (ja) * 2003-07-11 2009-04-02 株式会社沖データ 図形処理装置
US7298904B2 (en) * 2004-01-14 2007-11-20 International Business Machines Corporation Method and apparatus for scaling handwritten character input for handwriting recognition
TW200625173A (en) * 2004-12-17 2006-07-16 Inventec Appliances Corp Acceleration-sensing handwriting input apparatus and method
TW200715201A (en) * 2005-10-14 2007-04-16 Inventec Besta Co Ltd Method and system for characters identification inputted by handwriting
CN100538612C (zh) * 2005-12-16 2009-09-09 宇龙计算机通信科技(深圳)有限公司 具有笔锋效果的手写输入系统及方法
TWI368155B (en) * 2008-08-25 2012-07-11 Inventec Besta Co Ltd Handwriting input system and method
CN101813989B (zh) * 2009-02-20 2011-09-28 深圳中电数码显示有限公司 手写输入方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101226441A (zh) * 2007-01-17 2008-07-23 北京书生国际信息技术有限公司 一种实现笔锋效果的手写输入方法
CN101118650A (zh) * 2007-09-14 2008-02-06 广东威创日新电子有限公司 一种笔锋即时实现方法
CN102081803A (zh) * 2011-01-20 2011-06-01 周佳 一种手写原笔迹的笔锋实现方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110610532A (zh) * 2019-08-12 2019-12-24 安徽石轩文化科技有限公司 一种水墨流动性元素动画特效制作方法
CN110610532B (zh) * 2019-08-12 2023-08-01 安徽石轩文化科技有限公司 一种水墨流动性元素动画特效制作方法
CN111223165A (zh) * 2020-01-03 2020-06-02 福建升腾资讯有限公司 一种生成无锯的签字图片的方法、装置和设备
CN115291789A (zh) * 2022-08-03 2022-11-04 青岛海信移动通信技术股份有限公司 一种笔迹拟合方法、装置、终端设备和介质
CN115291789B (zh) * 2022-08-03 2024-04-26 青岛海信移动通信技术有限公司 一种笔迹拟合方法、装置、终端设备和介质

Also Published As

Publication number Publication date
TW201232424A (en) 2012-08-01
US9134821B2 (en) 2015-09-15
US20140055428A1 (en) 2014-02-27
KR20140024260A (ko) 2014-02-28
KR101585145B1 (ko) 2016-01-13
CN102081803A (zh) 2011-06-01
CN102081803B (zh) 2012-10-10
TWI452526B (zh) 2014-09-11
JP2014508992A (ja) 2014-04-10

Similar Documents

Publication Publication Date Title
WO2012097729A1 (zh) 一种手写原笔迹的笔锋实现方法及实现装置
US8749497B2 (en) Multi-touch shape drawing
CN110531875B (zh) 书写笔锋的生成方法、终端设备及存储介质
JP5706001B2 (ja) 手書き原筆跡の実現方法、実現装置及び電子装置
US20080134078A1 (en) Scrolling method and apparatus
KR20160046150A (ko) 도형 컨텐트를 생성 및 해석하는 방법 및 장치
KR20110133787A (ko) 터치 스크린 및 디스플레이 방법
KR20090017517A (ko) 터치스크린 장치의 사용자로부터 수신된 입력 및 제스쳐에 응답하여 동작을 수행하는 컴퓨터로 구현된 방법 및 컴퓨터판독가능 매체
CN103186235A (zh) 一种手写输入的处理方法及装置
CN112905102B (zh) 书写笔锋的实现方法、装置、电子设备及可读存储介质
CN109564496B (zh) 交互式显示叠覆系统及相关方法
US20160054879A1 (en) Portable electronic devices and methods for operating user interfaces
CN106598928A (zh) 一种在显示屏上进行批注的方法及其系统
US9600089B2 (en) Optical digital ruler
US11137903B2 (en) Gesture-based transitions between modes for mixed mode digital boards
CN102566812B (zh) 一种手写记事本的实现方法及装置
TW201423563A (zh) 手寫輸入識別系統及方法
CN103870039B (zh) 输入方法和电子装置
WO2021218448A1 (zh) 笔迹形成方法、笔迹形成装置及电子设备
US20200225787A1 (en) Stroke-based object selection for digital board applications
CN104238921A (zh) 一种自定义多边形的绘制方法和装置
WO2023092437A1 (zh) 一种智能计算的方法及智能交互平板
CN203909745U (zh) 一种能使触显一体机具备手写输入功能的液晶屏装置
TWI502521B (zh) 筆觸顯示方法
JP2014038152A (ja) 表示装置および表示装置の制御方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12736702

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 20137017320

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2013549705

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 13981083

Country of ref document: US

122 Ep: pct application non-entry in european phase

Ref document number: 12736702

Country of ref document: EP

Kind code of ref document: A1