CN113568514A - Writing data acquisition pen tool, handwriting processing method and equipment - Google Patents
Writing data acquisition pen tool, handwriting processing method and equipment Download PDFInfo
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- 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
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- 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
- G06F3/038—Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- 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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
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- 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
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04162—Control or interface arrangements specially adapted for digitisers for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
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Abstract
The invention discloses a writing data acquisition pen tool, a handwriting processing method and equipment, wherein the pen tool comprises: the pen body and the pen cap body; the pen body is provided with a sensing device and an accommodating cavity for accommodating a pen core; the sensing device is used for acquiring pressure feedback data and nib position information generated by a nib part of the refill in the writing process; the pen is provided with a storage device, and the storage device is used for storing and/or unloading the pressure feedback data and the pen point position information; the pen cap body is provided with a communication module; the communication module is used for transmitting the pressure feedback data and the pen point position information to the handwriting processing equipment for handwriting processing, extra complex operation of a user is not needed in the process, the handwriting data are not limited by scene and position change any more, the handwriting data are processed and presented through the handwriting processing equipment, and the user can conveniently look up and retrieve the handwriting data.
Description
Technical Field
The invention relates to the technical field of intelligent writing, in particular to a writing data acquisition pen tool, a handwriting processing method and equipment.
Background
For recording and identifying handwriting content, the prior art focuses on solving the speed and accuracy of character identification, and the prior scheme designs a medium-sized or even large-sized special writing device for generating handwriting data aiming at a specific scene; or shooting the handwriting by adopting shooting equipment, storing the handwriting into the equipment in a picture form, and identifying the characters and information in the picture by using a specific character identification algorithm.
The handwriting data generating device in the scheme has large volume and high manufacturing cost, and cannot be applied to daily life and work; the method is complex in operation flow, and a plurality of technical factors influence the final effect in the picture shooting process, such as the performance fluctuation of shooting equipment, the intensity of ambient light during shooting or the definition of handwriting content and the like.
Disclosure of Invention
In view of the above, the present invention has been made to provide a writing data collecting pen, a handwriting processing method and apparatus that overcome or at least partially solve the above problems.
According to one aspect of the invention, a writing data acquisition pen tool is provided, which comprises a pen body and a pen cap body; the pen body is provided with a sensing device and an accommodating cavity for accommodating a pen core; the sensing device is used for acquiring pressure feedback data and pen point position information generated by a pen point part of the pen core in the writing process; the pen is provided with a storage device, and the storage device is used for storing and/or unloading the pressure feedback data and the pen point position information; the pen cap body is provided with a communication module; and the communication module is used for transmitting the pressure feedback data and the pen point position information to handwriting processing equipment for handwriting processing.
According to another aspect of the present invention, there is provided a handwriting processing method, including:
acquiring pressure feedback data and pen point position information sent by a writing data acquisition pen, and constructing handwriting data comprising the pressure feedback data and the pen point position information;
determining size information and page writing direction information required by page presentation according to the handwriting data;
and connecting coordinate points corresponding to the nib position information according to the information of the size required by the presented page and the page writing direction information to form writing content.
According to still another aspect of the present invention, there is provided a handwriting processing apparatus including: the handwriting data construction module is used for acquiring pressure feedback data and pen point position information sent by the writing data acquisition pen and constructing handwriting data containing the pressure feedback data and the pen point position information;
the handwriting data processing module is used for determining the size information and the page writing direction information required by the page presentation according to the handwriting data;
and the writing content construction module is used for connecting coordinate points corresponding to the nib position information according to the information of the size required by the displayed page and the page writing direction information to form writing content.
According to yet another aspect of the present invention, there is provided a computing device comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the handwriting processing method.
According to a further aspect of the present invention, there is provided a computer storage medium having at least one executable instruction stored therein, the executable instruction causing a processor to execute operations corresponding to the handwriting processing method.
According to the writing data acquisition pen tool, the handwriting processing method and the equipment, the sensing device and the accommodating cavity for accommodating the pen core are arranged on the pen body; arranging a storage device in the pen; set up communication module at the cap body, can be through gathering pressure feedback data and nib positional information to concentrate the storage through storage device, and then transmit to handwriting processing equipment through communication module and carry out handwriting data processing, this process need not the extra complicated operation of user, no longer receives the restriction that scene and position change to handwriting data's storage, handles and presents handwriting data through handwriting processing equipment, convenience of customers looks up and retrieves.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
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Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic cross-sectional structure diagram of a pen body of a writing data acquisition pen tool according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cap body of a writing data acquisition pen tool provided by an embodiment of the invention;
FIG. 3 is a flow chart of a method for processing handwriting according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a handwriting processing device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a computing device provided by an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 1 and 2 respectively show schematic views of an embodiment of a writing data collecting pen tool of the present invention, which includes a pen body 01 and a pen cap body 02; fig. 1 shows a schematic cross-sectional structure view of a pen body 01 of a writing data acquisition pen tool of the present invention, wherein the pen body 01 is provided with a sensing device and an accommodating cavity 03 for accommodating a pen core; the sensing device is used for acquiring pressure feedback data and pen point position information generated by a pen point part of the pen core in the writing process; the pen is provided with a storage device, and the storage device is used for storing and/or unloading the pressure feedback data and the pen point position information. Fig. 2 shows a schematic structural diagram of a pen cap body 02 of a writing data acquisition pen tool of the present invention, and as shown in fig. 2, the pen cap body 02 is provided with a communication module; the communication module is used for transmitting the pressure feedback data and the pen point position information stored in the second storage module to handwriting processing equipment for handwriting processing.
In an alternative way, the sensing means comprise at least a pressure sensor 04 and a position sensor 05; as shown in fig. 1, the pressure sensor 04 is disposed at the tail end of the pen body 01, and is configured to convert pressure generated by the pen point of the pen core during writing into pressure feedback data for output; the position sensor 05 is arranged at the pen point end of the pen body 01 and used for collecting pen point position information of the pen point part in the writing process.
Specifically speaking, this body of the pen 01 can adapt the replacement refill of mainstream gel ink pen on the market, need install the replacement refill before using, the pressure feedback data that produces and the real-time nib positional information of nib when writing the in-process through pressure sensor 04 positional sensor 05 independent work monitoring nib writing process, wherein, positional sensor 05 is according to certain frequency sampling and the two-dimensional positional information of nib of storage nib writing in-process, two-dimensional coordinate point in the present writing region is as nib positional information promptly, pressure sensor 04 then gathers the corresponding pressure feedback data of each two-dimensional coordinate point in real time.
Further, the pressure sensor 04 is a micro pressure sensor, and the position sensor 05 is a micro infrared position moving sensor; the pressure sensor 04 is used for monitoring the pressure change of the contact between the pen point of the pen core and the paper surface when the pen core writes; specifically, when a new pen core is replaced into the pen body 01, the initial pressure value is different due to the process error of the pen core, so that an initial value updating function needs to be set for the pressure sensor 04, for example, the stable pressure value after the pen core is filled can be used as a new initial zero value; draw the paper when the nib, produce pressure variation, set up this moment and awaken up the entering operating condition in the position sensor 05 of 01 nib end of body of a writing, begin the writing position of monitoring nib, its processing procedure specifically is: the pen tip position information when the position sensor 04 is waken up is set to Loc0When the pen is written, the position sensor 05 continuously samples and monitors the pen point position information, the frequency of sampling and monitoring is recorded as f, the unit is Hertz, namely f pen point position data are taken every second, and the pen point position information is recorded as Loc when the time i is recordediThe pressure feedback data of the pen point at the time i is FiThen, defining the ternary data set representation of the handwriting data: datai＝(xi，yiFi) in which pen tip position information Loci＝(xi，yi)。
In particular, a determination scheme of a writing completion state needs to be preset to determine that the writing data acquisition is completed, and the specific determination scheme may be: and if the pressure feedback data does not change within the preset time, the writing is determined to be suspended, the pressure sensor 04 stops pressure detection, and the position sensor 05 is closed and does not acquire the position information of the pen point, wherein the preset time can be 10 minutes and the like.
In an alternative mode, the storage device at least comprises a first storage module (not shown in the figure) arranged on the pen body 01 and a second storage module (not shown in the figure) arranged on the pen cap body 02; the first storage module is used for storing pressure feedback data and pen point position information and transmitting the stored pressure feedback data and pen point position information to the second storage module for unloading through the communication module.
It should be particularly noted that the collected pressure feedback data and the pen point position information are temporarily stored through the first storage module, and since the pen body 01 is used as a main part for collecting handwriting data, the primary function point of the pen body is to adapt to a neutral pen refill, and meanwhile, the pressure and the pen point position monitoring are integrated and provided for a user to write, the volume and the attractiveness of the pen body 01 are considered, the storage capacity of the first storage module is small, and the stored data needs to be subjected to secondary dumping through the pen cap body 02. In addition, the specific installation position of the first storage module is not limited in this embodiment, the specific form of the first storage module may be set according to actual requirements, and the first storage module may be embedded in the pen body 00 by using a memory device with a micro storage capacity.
Particularly, the pen cap body 02 used in cooperation with the pen body 01 is responsible for secondary storage and external transmission of pressure feedback data and pen point position information, and a second storage module in the pen cap body 02 has a large data storage space, so that the pressure feedback data and the pen point position information of the first storage module can be transferred and stored to the second storage module through multiple communications with the pen body 01, when the pressure feedback data and the pen point position information are stored until one or multiple writing processes are completed, the pressure feedback data and the pen point position information collected in the pen cap body 02 are transmitted to handwriting processing equipment through a communication module, the handwriting data are stored and presented by the handwriting processing equipment, and meanwhile, the handwriting processing equipment can also process and analyze the handwriting data, automatically generate a content retrieval catalog, and a user can conveniently look up and retrieve the written content. The handwriting processing equipment can be arranged in the second storage module, and after the second storage module transmits the pressure feedback data and the pen point position information to the handwriting processing equipment, the data in the second storage module is erased, so that the space of the second storage module is cleaned. The handwriting processing device may specifically be a computer or the like.
It should be noted that, in this embodiment, a specific installation position of the second storage module is not limited, and the specific form of the second storage module may be set according to actual requirements, and the second storage module may be embedded inside the pen cap body 02 by using a memory device with a micro storage capacity.
In an optional mode, the pen body 01 is provided with a first data contact 06, and the pen cap body 02 is provided with a second data contact 07 corresponding to the first data contact 06; when the pen body 01 is sleeved with the pen cap body 02, the first data contact 06 and the second data contact 07 are connected, so that a data path is formed between the pen body 01 and the pen cap body 02, and the first storage module transmits the stored pressure feedback data and the stored pen point position information to the second storage module for storage.
Specifically, when writing is completed once, a user fastens the pen body 01 and the pen cap body 02, the first data contact 06 of the pen body 01 is connected with the second data contact 07 of the pen cap body 02, a data path is formed between the pen body 01 and the pen cap body 02, and the pressure feedback data and the pen point position information of writing at this time stored in the first storage module are transmitted to the second storage module through the data path. After the transmission is completed, the contents stored in the first storage module are emptied. Nib position information Loc0Is also emptied and the next writing is reset.
In an alternative manner, the communication module may include: and the data interface is used for being connected with the handwriting processing equipment through a data line.
Specifically, in order to communicate with the handwriting processing device, the pen cap body 02 further includes a data interface, and the data interface may be a type-c interface or a USB interface.
Particularly, the communication module may further include a wireless communication unit such as infrared ray, bluetooth, WiFi, and the like, and the pen cap body 01 may also communicate with the handwriting processing device in a wireless communication manner.
In an optional mode, a pen hanger 08 is further arranged on the pen cap body 02, for better protection of a data interface, a pen hanger placing groove can be formed in the pen cap body, the pen hanger 08 and the pen cap body 02 are movably connected through the pen hanger placing groove, the data interface is arranged inside the pen hanger 08 placing groove, namely the inner side of the pen hanger 08 cover is covered, when the pen cap body 02 needs to be communicated with handwriting processing equipment, the pen hanger 08 can be pushed out from the tail of the pen cap body 01, and the pen hanger 08 is rotated anticlockwise to a certain angle (such as 30 degrees), so that the data interface can be exposed.
In an optional mode, a battery module 09 is further arranged inside the pen body 01, and the battery module 09 can adopt a built-in button battery and is used for providing electric energy for the writing data acquisition pen; the cap body 02 is further provided with an indicator light 10 for indicating the state of charge of the battery module and/or the state of data transmission between the first storage module and the second storage module.
Specifically, the indicator light 10 of the pen body 01 is electrically connected to the battery module 09, and the indicator light 10 is used for prompting the electric quantity state, for example, prompting through a red breathing light in a low electric quantity state; when first storage module carries out data transmission with the second storage module, the pilot lamp can also carry out the suggestion of data transmission state, for example data transmission process green breathing lamp scintillation, and data transmission accomplishes green breathing lamp and stops the scintillation and extinguish. It should be noted that, in order to distinguish the power status from the data transmission status, the power status and the data transmission status may be indicated by breathing lights with different colors.
By adopting the pen tool of the embodiment, the pressure sensor, the position sensor, the first storage module and the accommodating cavity for accommodating the pen core are arranged on the pen body; set up second storage module and communication module at the cap body, can be through gathering pressure feedback data and nib positional information, and concentrate the storage through first storage module, and then transmit to handwriting processing equipment and carry out handwriting data processing after dumping to second storage module through communication module, its data acquisition is perceptionless to the user with the dumping process, this process need not user extra complicated operation, no longer receive the restriction of scene and position change to handwriting data's storage, handle and present handwriting data through handwriting processing equipment, convenience of customers looks up and retrieves. This kind of writing utensils that this embodiment provided compares more convenient material benefit with current writing data record instrument, and because the body of a brush can be compatible with the traditional refill on the market, therefore low cost, the practicality is strong.
FIG. 3 is a flow chart of an embodiment of a method for handwriting processing, as shown in FIG. 3, the method comprising the steps of:
step S310: and acquiring pressure feedback data and pen point position information sent by the writing data acquisition pen, and constructing handwriting data containing the pressure feedback data and the pen point position information.
In the step, the writing data acquisition pen transmits the collected pressure feedback data and the pen point position information to the handwriting processing equipment through the communication module, and the handwriting processing equipment constructs handwriting data according to the pressure feedback data and the pen point position information. The handwriting data may be formed by one or more writing processes, and therefore, the handwriting data needs to be firstly sorted and processed according to time and paragraphs, so as to facilitate the user to look up and apply. The handwriting data can be in the form of a ternary data set, specifically expressed as datai＝(xi，yi，Fi) Wherein, LociInformation of pen tip position at time i, Loci＝(xi，yi)；FiThe pressure feedback data of the pen point at the time i.
Step S320: and determining the size information and page writing direction information required by the page presentation according to the handwriting data.
In an optional manner, step S320 further includes: acquiring initial point position information in nib position information in handwriting data; traversing nib position information, and searching nib position information farthest from the initial point position information; and determining the size information required for presenting the page according to the initial point position information and the farthest pen point position information.
In the step, firstly, the handwriting data is processed in a segmented mode according to the position information of the pen point in the handwriting data, specifically, the handwriting data is processed in a grouped mode according to the writing content forming time and paragraph according to the position information of the pen point in the handwriting data, and a plurality of data groups are obtained;because when new writing record begins at every turn, the position that nib positional information begins in the handwriting data is (0, 0), and the handwriting data is the ternary data set that contains pressure feedback data and nib positional information: datai＝(xi，yi，Fi) Wherein pen tip position information Loci＝(xi，yi)，FiIs pressure feedback data, so that each time (0, 0, F) is retrieved by traversing the handwriting data to be processed currentlyi) (wherein F)iNot equal to 0), that is, the coordinate position is taken as a grouping node to form a data group, and after the handwriting data is segmented, the size information required by each segment of the presentation page needs to be determined according to the content of the segment.
Specifically, the method for determining the size information required for rendering a page is as follows: traversing the handwriting data of the current data set, acquiring initial point position information in nib position information in each handwriting data of the data set, and searching nib position information (max (x) farthest from the initial point position informationi)，max(yi) The calculation formulas of the page width and the page length are as follows (1) and (2):
page width ═ max (xi) +0.1max (max (x)i) Where x) isiCorresponding FiIs not equal to 0; (1)
page length max (y)i)+0.1max(max(yi) Wherein y) isiCorresponding FiIs not equal to 0; (2)
it should be noted that, since some of the acquired handwriting data are coordinates of transition position points between characters and need to be ignored, the coordinate point (max (x) of the real valid handwriting position information in the above equations (1) and (2) isi)，max(yi) Is the corresponding pressure feedback data FiA point other than 0; in addition, since a page margin is to be reserved for the content, a 0.1 coefficient term is added.
In an alternative manner, step S320 further includes steps 1-6:
step 1, determining the initial position information of the current row/column.
Specifically, the page writing direction includes horizontal writing, vertical writing, and the like, and therefore the page writing direction can be determined by determining whether the current writing position is line feed or line feed, specifically, if the current writing position is line feed, the corresponding page writing direction is the horizontal writing direction, and if the current writing position is line feed, the corresponding page writing direction is the vertical writing direction, and therefore, by determining the horizontal distance difference and the vertical distance difference of any two sets of nib position information in the handwriting data, the two sets of horizontal distance differences and the two sets of vertical distance differences are respectively compared, and the page writing direction is determined according to the comparison result.
In this step, first, the coordinate point corresponding to the initial position information of the current row/column of the handwriting data is determined as (Xi)0，Yi0). Generally, for simplicity and convenience of the calculation process, initial point position information in nib position information selected when a size required by a presented page is calculated can be selected as initial position information of a current row/column, so that after the size required by the presented page is determined, a page writing direction can be determined without repeated resampling, and the sampling times are reduced.
And 2, randomly reading pen point position information from the handwriting data to serve as current sampling position information.
Specifically, one piece of pen point position information is arbitrarily read from pen point position information in handwriting data as current sampling position information, and a coordinate point of the current sampling position information is recorded as (Xi)i，Yii) And marking the coordinate point of the current sampling position information after being read.
And 3, calculating the distance difference between the current sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction.
In this step, a sampling coordinate point (Xi) immediately preceding the coordinate point of the current sampling position information is acquiredpre，Yipre) (ii) a Coordinate point (Xi) according to the current sampling positioni，Yii) And the coordinate point (Xi) of the previous sampling positionpre，Yipre) And start position information (Xi)0，Yi0) Separately calculating the horizontal writing direction (i.e., X-axis direction) and the vertical writing direction (i.e., Y-axis direction) with respect to the current starting position (Xi)0，Yi0) The distance difference d of (a) is calculated by the following formula (3) to (6):
d(Xipre)＝|Xipre-Xi0|； (3)
d(Yipre)＝|Yipre-Yi0|； (4)
d(Xii)＝|Xii-Xi0|； (5)
d(Yii)＝|Yii-Yi0|； (6)
wherein d (Xi)pre) And d (Yi)pre) Coordinate points (Xi) respectively representing previous sampling position informationpre，Yipre) And a starting position (Xi)0，Yi0) A difference in distance in the X and Y axes; d (Xi)i) And d (Yi)i) Coordinate points (Xi) respectively representing current sampling position informationi，Yii) And a starting position (Xi)0，Yi0) The difference in distance in the X and Y axes.
And 4, respectively comparing the distance difference between the current sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction with the distance difference between the previous sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction, and determining page writing direction information according to the comparison result.
Specifically, the comparison is performed according to the calculation result of step 3, if d (Yi)i) Far greater than d (Yi)pre) And d (Xi)i) Less than d (Xi)pre) If so, the current writing position is line feed writing, and the current page writing direction is transverse writing; if d (Xi)i) Far greater than d (Xi)pre) And d (Yi)i) Less than d (Yi)pre) Judging that the current writing position is column replacement writing and the current page writing direction is judged to be longitudinal writing; wherein, the distance difference threshold value d (Yi) can be preseti) And d (Yi)pre) Absolute value of the distance difference of (c) or d (Xi)i) And d (Xi)pre) Is greater than or equal to the distance differenceThreshold, d (Yi) can be determinedi) Far greater than d (Yi)pre) Or d (Xi)i) Far greater than d (Xi)pre)。
Step 5, judging whether the pen point position information in the handwriting data is read; if yes, ending the execution; if not, executing step 6.
Specifically, whether the pen point position information in the handwriting data is read or not is judged by reading the read mark of the coordinate point of the pen point position information in the handwriting data, if so, the page writing direction judgment of the handwriting data is completed, and if not, the page writing directions of the rest handwriting data need to be continuously determined.
And 6, updating the initial position information by using the current sampling position information, and then jumping to execute the step 2.
Specifically, if the pen tip position information in the handwriting data is read, the execution is finished, and if the pen tip position information which is not read exists in the handwriting data and indicates that the processing of the handwriting data is not finished, the step 6 is executed. In step 6, the (Xi) is replaced with the coordinate point of the current sampling position0，Yi0) Will replace (Xi)0，Yi0) As the current sample position, then steps 2-5 are continued.
Step S330: and connecting coordinate points corresponding to the pen point position information according to the information of the size required by the presented page and the page writing direction information to form writing contents.
In this step, according to the information of the size required for presenting the page and the information of the page writing direction, the coordinate point (Xi) corresponding to the pen point position information is calculated0，Yi0) And (Xi)pre，Yipre) And traversing the handwriting data for one round, connecting the handwriting data and displaying the writing content.
The method specifically comprises the following steps: for adjacent valid coordinate points such as (Xi)0，Yi0) And (Xi)pre，Yipre) And (6) connecting the wires. It should be noted that some coordinate points cannot be connected, so that effective trace points need to be determined, and the effective trace points are connected to form writing contents; such as during traversalOne of the previous coordinate points corresponding to the previous coordinate point and the current coordinate point is not a valid stroke point, that is, the frequency of receiving the pressure feedback data at the current coordinate point in the nib position information and the previous coordinate point corresponding to the current coordinate point does not match the normal frequency, for example, the user frequently clicks the nib or a child to play when unconsciously writing, in both cases, the frequency of receiving the pressure feedback data between the current coordinate point and the previous coordinate point corresponding to the current coordinate point exceeds the frequency of normal writing, so that the frequency of receiving the pressure feedback data during normal writing can be preset, when the frequency of receiving pressure feedback data between two adjacent coordinate points is detected to exceed the preset frequency, the current coordinate point is not a valid stroke point, in this case, the connection processing is not performed between the current coordinate point and the previous coordinate point corresponding to the current coordinate point. Or, some characters with multiple strokes exist in the handwriting data, and the multiple strokes cannot be written by one stroke, so that coordinate points of two different strokes should not be connected; for example, the Chinese character "two", the coordinate point corresponding to the end point of the first horizontal line and the coordinate point corresponding to the start point of the second horizontal line should not be connected. Therefore, for the above two cases, the process can be performed by defining a distance threshold value epsilon between adjacent coordinate points, that is, calculating a plane distance between a current coordinate point (i.e., a coordinate point of current sampling position information) and a previous coordinate point (i.e., a coordinate point of previous sampling position information) in the traversal process, and if the plane distance is smaller than epsilon, performing a wire connection process, otherwise, not performing a wire connection. After each line/column is processed, the next line/column of handwriting data processing process is started, and when the adjacent coordinate points of the new line/column are connected, the coordinate point (Xi) of the initial position information needs to be connected0，Yi0) Coordinate point (Xi) updated to current sampling position informationi，Yii) And circularly performing the above processes to form the written content.
After the written content is formed, the written content may be output as a written content file, where the written content file may specifically be a pdf file, and each page of the written content file is presented in the form of a handwritten word tracing point picture.
In an optional manner, the method further comprises: forming a writing content file according to the writing content; performing character recognition on each page of content in the written content file, and performing word segmentation and screening processing on the recognized character content to obtain a directory index keyword; and setting a directory for the writing content file according to the directory index key words.
Specifically, the content retrieval directory may be constructed from written contents. The specific mode can be realized by performing character recognition on each page of content of a writing content file, accessing character recognition software to recognize handwritten character content, performing word segmentation processing on the recognized character content, extracting noun phrases, counting the occurrence frequency of each phrase, performing sequencing processing according to the occurrence frequency from less to most, and screening out a plurality of former phrases with the most occurrence frequency as directory index keywords of the current page content; and adding a directory for the written content file according to the directory index keywords, wherein the directory entry content is the directory index keywords extracted from the page and sorted and screened, and associating each directory index keyword with the page number corresponding to the page content of the directory index keyword in the written content file, so that a user can jump to the appointed page number through the directory entry content when looking up the written content file.
By adopting the method of the embodiment, a data group is formed by carrying out time-sharing segmentation processing on the handwriting data, and the information of the size and the page writing direction required by the page is determined according to the nib position information and the pressure feedback data of the data group; according to the information of the size required by the page and the writing direction information of the page, connecting coordinate points corresponding to the position information of the pen point to form writing contents, so that a user can conveniently look up and store the writing contents; meanwhile, the content retrieval directory is constructed according to the writing content, and a user can jump to the appointed page number corresponding to the writing content through the content of the directory entry, so that the method is convenient and fast, and the user experience is improved.
FIG. 4 is a schematic structural diagram of an embodiment of a handwriting processing apparatus according to the present invention. As shown in fig. 4, the apparatus includes: a handwriting data construction module 410, a handwriting data processing module 420 and a writing content construction module 430.
The handwriting data constructing module 410 is configured to obtain pressure feedback data and pen point position information sent by the writing data acquisition pen, and construct handwriting data including the pressure feedback data and the pen point position information.
And the handwriting data processing module 420 is used for determining the size information and the page writing direction information required by the page presentation according to the handwriting data.
In an optional manner, the handwriting data processing module 420 is further configured to: acquiring initial point position information in nib position information in handwriting data; traversing nib position information, and searching nib position information farthest from the initial point position information; and determining the size information required for presenting the page according to the initial point position information and the farthest pen point position information.
In an optional manner, the handwriting data processing module 420 is further configured to: determining current initial position information; randomly reading pen point position information from the handwriting data, judging whether the pen point position information is read, and if not, taking the pen point position information as current sampling position information; respectively calculating the distance difference between the current sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction; and comparing the distance difference between the current sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction with the distance difference between the previous sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction respectively, and determining page writing direction information according to the comparison result.
And the writing content constructing module 430 is configured to connect coordinate points corresponding to the nib position information according to the size information and the page writing direction information required for presenting the page, and form writing content.
In an alternative approach, the written content construction module 430 is further configured to: forming a writing content file according to the writing content; performing character recognition on each page of content in the written content file, and performing word segmentation and screening processing on the recognized character content to obtain a directory index keyword; and setting a directory for the writing content file according to the directory index key words.
By adopting the equipment of the embodiment, a data group is formed after time-sharing segmentation processing is carried out on the handwriting data, and the information of the size and the page writing direction required by the page is determined according to the nib position information and the pressure feedback data of the data group; according to the information of the required size of the page and the information of the page writing direction, the coordinate points corresponding to the position information of the pen point are connected to form writing contents, so that the pen is convenient and quick for a user to look up and store, and the user experience is improved.
An embodiment of the present invention provides a non-volatile computer storage medium, where at least one executable instruction is stored in the computer storage medium, and the computer executable instruction may execute a handwriting processing method in any of the above method embodiments.
The executable instructions may be specifically configured to cause the processor to:
acquiring pressure feedback data and pen point position information sent by a writing data acquisition pen, and constructing handwriting data comprising the pressure feedback data and the pen point position information;
determining size information and page writing direction information required by a page to be presented according to the handwriting data;
and connecting coordinate points corresponding to the pen point position information according to the information of the size required by the presented page and the page writing direction information to form writing contents.
Fig. 5 is a schematic structural diagram of an embodiment of a computing device according to the present invention, and a specific embodiment of the present invention does not limit a specific implementation of the computing device.
As shown in fig. 5, the computing device may include:
a processor (processor), a Communications Interface (Communications Interface), a memory (memory), and a Communications bus.
Wherein: the processor, the communication interface, and the memory communicate with each other via a communication bus. A communication interface for communicating with network elements of other devices, such as clients or other servers. The processor is used for executing the program, and specifically can execute the relevant steps in the embodiment of the handwriting processing method.
In particular, the program may include program code comprising computer operating instructions.
The processor may be a central processing unit CPU or an application Specific Integrated circuit asic or one or more Integrated circuits configured to implement embodiments of the present invention. The server comprises one or more processors, which can be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
And the memory is used for storing programs. The memory may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The program may specifically be adapted to cause a processor to perform the following operations:
acquiring pressure feedback data and pen point position information sent by a writing data acquisition pen, and constructing handwriting data comprising the pressure feedback data and the pen point position information;
determining size information and page writing direction information required by a page to be presented according to the handwriting data;
and connecting coordinate points corresponding to the pen point position information according to the information of the size required by the presented page and the page writing direction information to form writing contents.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.
Claims (10)
1. A writing data acquisition pen tool is characterized by comprising a pen body and a pen cap body;
the pen body is provided with a sensing device and an accommodating cavity for accommodating a pen core; the sensing device is used for acquiring pressure feedback data and pen point position information generated by a pen point part of the pen core in the writing process;
the pen is provided with a storage device, and the storage device is used for storing and/or unloading the pressure feedback data and the pen point position information;
the pen cap body is provided with a communication module; and the communication module is used for transmitting the pressure feedback data and the pen point position information to handwriting processing equipment for handwriting processing.
2. The pen of claim 1, wherein the sensing means comprises at least a pressure sensor and a position sensor; wherein the content of the first and second substances,
the pressure sensor is arranged at the tail end of the pen body and used for converting pressure generated by a pen point part of the pen core in the writing process into pressure feedback data to be output;
the position sensor is arranged at the pen point end of the pen body and used for collecting pen point position information of the pen point part in the writing process.
3. The pen of claim 1, wherein the pen body is provided with a first data contact and the pen cap body is provided with a second data contact corresponding to the first data contact;
when the pen body is sleeved with the pen cap body, the first data contact is connected with the second data contact, so that a data path is formed between the pen body and the pen cap body;
correspondingly, the storage device at least comprises a first storage module arranged on the pen body and a second storage module arranged on the pen cap body;
the first storage module is used for storing the pressure feedback data and the pen point position information and transmitting the stored pressure feedback data and the stored pen point position information to the second storage module for unloading through the data path.
4. The pen tool according to any one of claims 1 to 3, wherein a battery module is further arranged inside the pen body and used for providing electric energy for the writing data acquisition pen tool;
the pen cap body is further provided with an indicator light for indicating the electric quantity state of the battery module and/or the data transmission state between the first storage module and the second storage module.
5. A method for handwriting processing, comprising:
acquiring pressure feedback data and pen point position information sent by a writing data acquisition pen, and constructing handwriting data comprising the pressure feedback data and the pen point position information;
determining size information and page writing direction information required by page presentation according to the handwriting data;
and connecting coordinate points corresponding to the nib position information according to the information of the size required by the presented page and the page writing direction information to form writing content.
6. A method as claimed in claim 5, wherein the step of determining from the handwriting data size information and page writing direction information required for rendering a page comprises:
acquiring initial point position information in nib position information in handwriting data;
traversing the nib position information, and searching nib position information which is farthest from the initial point position information;
and determining the size information required for presenting the page according to the initial point position information and the farthest pen point position information.
7. A method as claimed in claim 5, wherein said determining from said handwriting data page size information and page writing direction information required to render a page further comprises:
determining the initial position information of the current row/column;
randomly reading pen point position information from the handwriting data as current sampling position information;
respectively calculating the distance difference between the current sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction;
and comparing the distance difference between the current sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction with the distance difference between the previous sampling position information and the initial position information in the transverse writing direction and the longitudinal writing direction respectively, and determining page writing direction information according to the comparison result.
8. A handwriting processing apparatus, comprising:
the handwriting data construction module is used for acquiring pressure feedback data and pen point position information sent by the writing data acquisition pen and constructing handwriting data containing the pressure feedback data and the pen point position information;
the handwriting data processing module is used for determining the size information and the page writing direction information required by the page presentation according to the handwriting data;
and the writing content construction module is used for connecting coordinate points corresponding to the nib position information according to the information of the size required by the displayed page and the page writing direction information to form writing content.
9. A computing device, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction causes the processor to execute the operation corresponding to the handwriting processing method according to any one of claims 5-7.
10. A computer storage medium having stored thereon at least one executable instruction for causing a processor to perform operations corresponding to a method of handwriting processing according to any one of claims 5-7.
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