CN104281859A - Handwriting overlap processing device and method and electronic book equipment - Google Patents

Handwriting overlap processing device and method and electronic book equipment Download PDF

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Publication number
CN104281859A
CN104281859A CN201310284717.9A CN201310284717A CN104281859A CN 104281859 A CN104281859 A CN 104281859A CN 201310284717 A CN201310284717 A CN 201310284717A CN 104281859 A CN104281859 A CN 104281859A
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China
Prior art keywords
handwriting
person
overlapping region
pair
judge
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李军
张涛
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Hitachi Ltd
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Hitachi Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/26—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
    • G06V10/267—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion by performing operations on regions, e.g. growing, shrinking or watersheds
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Multimedia (AREA)
  • Human Computer Interaction (AREA)
  • User Interface Of Digital Computer (AREA)

Abstract

The invention provides a handwriting overlap processing device and method and electronic book equipment. The handwriting overlap processing device receives input of a plurality of handwriting parts which are formed by a large number of points, overlap removing processing is conducted on any two handwriting parts of the handwriting parts, and then the handwriting parts are output. The handwriting overlap processing device comprises a handwriting range overlapping ratio judgment part, an overlapping region judgment part and an overlap removing processing part. According to the handwriting range overlapping ratio judgment part, a plurality of pairwise judgment object handwriting parts are determined in accordance with respective overlap processing units for any two input handwriting parts, the area of the handwriting ranges and the area of an overlapping region are calculated, the handwriting range overlapping ratio is solved, and accordingly whether the handwriting range overlapping ratio is larger than a threshold value or not is judged. According to the overlapping region judgment part, under the condition that the handwriting range overlapping ratio is larger than the threshold value, whether points placed in the overlapping region exist in the pairwise judgment object handwriting parts or not is judged, and thus the authenticity of the overlapping region is determined. According to the overlap removing processing part, under the condition that the overlapping region is true, overlap removing processing is conducted on the pairwise judgment object handwriting parts, and the pairwise judgment object handwriting parts which are subjected to overlap removing processing are output.

Description

Person's handwriting overlap processing device, person's handwriting overlap processing method and electronic book equipment
Technical field
The present invention relates to a kind of person's handwriting overlap processing device, person's handwriting overlap processing method and electronic book equipment, particularly relate to and can judge that multiple user is to the person's handwriting of the same reading object whether person's handwriting overlap processing device of an overlapping stepping row relax of going forward side by side, person's handwriting overlap processing method and have the electronic book equipment of this device.
Background technology
Current, along with the fast development of mobile device and internet, traditional reading method also there occurs change, and increasing people likes reading digital content on electronic book equipment, therefore also brings more opportunities and challenges to the production of digital content, management, distribution and use-pattern.
The general use-pattern of electronic book equipment is, people directly buy on electronic book equipment, download digital content reads, or is bought by miscellaneous equipment and be transferred on electronic book equipment and read.Wherein, some electronic book equipment also provides the function that additional person's handwriting (namely marking) is shared with person's handwriting on reading object.
Such as, patent documentation 1 discloses a kind of handwriting interactive reader, comprises mainboard module, wireless transport module, touch screen module and display screen, and these handwriting input data for responding to handwriting input data, and are sent to mainboard module by described touch screen module; Described mainboard module is connected with wireless transport module, touch screen module and display screen respectively, for receiving from the handwriting input data of this handwriting interactive reader touch screen module or the handwriting input data of sending with other handwriting interactive readers be connected with this handwriting interactive reader by wireless transport module; Described wireless transport module; for the handwriting input data from this handwriting interactive reader touch screen module being sent to other handwriting interactive readers be connected with this handwriting interactive reader by wireless transport module, or receive the handwriting input data from other handwriting interactive readers be connected with this handwriting interactive reader by wireless transport module.
Further, patent documentation 1 also discloses a kind of handwriting interactive reading system, comprises some above-mentioned handwriting interactive readers as main frame with from machine, described main frame and set up wireless connections by respective wireless transport module from machine.
By reader and system disclosed in patent documentation 1, the object that person's handwriting is mutual can being reached, providing great convenience for carrying out information interchange between reader.
Above-mentioned handwriting interactive reader and system thereof disclosed in patent documentation 1, a handwriting interactive reader can connect with other handwriting interactive reader, and asks the person's handwriting of user on other handwriting interactive readers.This mode is called person's handwriting sharing model one to one.
Patent documentation 1: the open CN201780695U of Chinese patent
Summary of the invention
Refer to teacher in education sector in patent documentation 1 and oneself can be distributed to student with the example exchanged to the annotations and comments that a certain section text is done, but do not consider that multidigit student is collected together display for the mark that a certain reading object is done and compared, to understand the understanding situation of student to this reading object by teacher.That is, the so-called one-to-many person's handwriting sharing model that user asks the person's handwriting of the user of other multiple stage handwriting interactive reader they together to be shown is not considered in patent documentation 1.
In addition, under the above-mentioned sharing model of person's handwriting one to one and above-mentioned one-to-many person's handwriting sharing model, when showing the person's handwriting of multiple user at the same time, the situation that the person's handwriting of different user overlaps may be there is, person's handwriting during overlapping, even can be caused to distinguish.
The present invention, for solving the problem and proposing, its object is to provide a kind of person's handwriting overlap processing device and electronic book equipment, can show the person's handwriting from multiple user simultaneously, and that carries out person's handwriting by the intention of user expeditiously with pin-point accuracy goes overlap processing.
Specifically, the invention provides a kind of person's handwriting overlap processing device, receive the input of multiple person's handwriting be made up of a large amount of points, after overlap processing is gone to any two person's handwritings all of the plurality of person's handwriting, the plurality of person's handwriting is exported, it is characterized in that, comprise: person's handwriting overlapping ranges rate calculates detection unit, for any two person's handwritings in described multiple person's handwriting of input, determine that the multiple of the two judge to judge object person's handwriting a pair of object as overlapping by respective overlap processing unit, calculate the described respective area of person's handwriting scope and the area of overlapping region that judge object person's handwriting for a pair, ask for person's handwriting overlapping ranges rate and then judge that whether this person's handwriting overlapping ranges rate is as more than predetermined threshold value, identification portion, overlapping region, when described person's handwriting overlapping ranges rate calculating detection unit is judged to be that described person's handwriting overlapping ranges rate is more than described threshold value, judge whether all there is the point being arranged in described overlapping region in described a pair judgement object person's handwriting, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region described a pair, be judged to be that described overlapping region is true overlapping region, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region not described a pair, be judged to be that described overlapping region is pseudo-overlapping region, fold handling part with duplicate removal, to being judged to be that by identification portion, described overlapping region described overlapping region is that the described of true overlapping region judges that object person's handwriting goes overlap processing for a pair, export through described go overlap processing after judge object person's handwriting described a pair.
In addition, the invention provides a kind of person's handwriting overlap processing device, receive the input of multiple person's handwriting be made up of a large amount of points, after overlap processing is gone to any two person's handwritings all of the plurality of person's handwriting, the plurality of person's handwriting is exported, it is characterized in that, comprise: person's handwriting overlapping ranges rate calculates detection unit, for any two person's handwritings in described multiple person's handwriting of input, determine that the multiple of the two judge to judge object person's handwriting a pair of object as overlapping by respective overlap processing unit, calculate the described respective area of person's handwriting scope and the area of overlapping region that judge object person's handwriting for a pair, ask for person's handwriting overlapping ranges rate and then judge that whether this person's handwriting overlapping ranges rate is as more than predetermined threshold value, identification portion, overlapping region, when described person's handwriting overlapping ranges rate calculating detection unit is judged to be that described person's handwriting overlapping ranges rate is more than described threshold value, judge whether all there is the point being arranged in described overlapping region in described a pair judgement object person's handwriting, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region described a pair, be judged to be that described overlapping region is true overlapping region, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region not described a pair, be judged to be that described overlapping region is pseudo-overlapping region, and then, for described initial true overlapping region, judge wherein whether there is the described overlapping point judging object person's handwriting for a pair, when there is overlapping point, be judged to be that described overlapping region is true overlapping region, when there is not overlapping point, be judged to be that described overlapping region is pseudo-overlapping region, fold handling part with duplicate removal, to being judged to be that by identification portion, described overlapping region described overlapping region is that the described of true overlapping region judges that object person's handwriting goes overlap processing for a pair, export through described go overlap processing after judge object person's handwriting described a pair.
Further, the invention provides a kind of electronic book equipment, it is characterized in that, comprising: touch panel, touch and written handwriting for user's finger or felt pen; Hand-written handling part, according to the person's handwriting that user is write by described touch panel, generates the data of the person's handwriting be made up of a large amount of points; Management department, to the user of local user and other electronic book equipment, the content-data that local user is bought, downloaded, and the person's handwriting that local user is done manages; Communication interface part, communicates with other electronic book equipment, receives the handwriting data of the user from other electronic book equipment; Data store, preserves the data of described person's handwriting, described user and described content; Display, for showing the data being kept at content in described data store and person's handwriting; Above-mentioned person's handwriting overlap processing device; And master controller, the all parts of described electronic book equipment is controlled, when local user request shows the person's handwriting from multiple user simultaneously, described master controller receives the person's handwriting of multiple user by described communication interface, the person's handwriting of described person's handwriting overlap processing device to described multiple user goes overlap processing, and go the person's handwriting after overlap processing to be sent to described display by having carried out, show with being kept at together with the described content in described data store.
In addition, the invention provides a kind of person's handwriting overlap processing method, for multiple person's handwriting be made up of a large amount of points, user is exported to after overlap processing is gone to any two person's handwritings all, it is characterized in that, comprise: person's handwriting overlapping ranges rate calculates determination step, for any two person's handwritings in described multiple person's handwriting, determine that the multiple of the two judge to judge object person's handwriting a pair of object as overlapping by respective overlap processing unit, calculate the described respective area of person's handwriting scope and the area of overlapping region that judge object person's handwriting for a pair, ask for person's handwriting overlapping ranges rate and then judge that whether this person's handwriting overlapping ranges rate is as more than predetermined threshold value, overlapping region identification step, when being judged to be that described person's handwriting overlapping ranges rate is more than described threshold value in described person's handwriting overlapping ranges rate calculating determination step, judge whether all there is the point being arranged in described overlapping region in described a pair judgement object person's handwriting, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region described a pair, be judged to be that described overlapping region is true overlapping region, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region not described a pair, be judged to be that described overlapping region is pseudo-overlapping region, treatment step is folded with duplicate removal, to being judged to be in the identification step of described overlapping region that described overlapping region is that the described of true overlapping region judges that object person's handwriting goes overlap processing for a pair, export through described go overlap processing after judge object person's handwriting described a pair.
In addition, the invention provides a kind of person's handwriting overlap processing method, for multiple person's handwriting be made up of a large amount of points, user is exported to after overlap processing is gone to any two person's handwritings all, it is characterized in that, comprise: person's handwriting overlapping ranges rate calculates determination step, for any two person's handwritings in described multiple person's handwriting, determine that the multiple of the two judge to judge object person's handwriting a pair of object as overlapping by respective overlap processing unit, calculate the described respective area of person's handwriting scope and the area of overlapping region that judge object person's handwriting for a pair, ask for person's handwriting overlapping ranges rate and then judge that whether this person's handwriting overlapping ranges rate is as more than predetermined threshold value, overlapping region identification step, when being judged to be that described person's handwriting overlapping ranges rate is more than described threshold value in described person's handwriting overlapping ranges rate calculating determination step, judge whether all there is the point being arranged in described overlapping region in described a pair judgement object person's handwriting, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region described a pair, be judged to be that described overlapping region is true overlapping region, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region not described a pair, be judged to be that described overlapping region is pseudo-overlapping region, and then, for described initial true overlapping region, judge wherein whether there is the described overlapping point judging object person's handwriting for a pair, when there is overlapping point, be judged to be that described overlapping region is true overlapping region, when there is not overlapping point, be judged to be that described overlapping region is pseudo-overlapping region, treatment step is folded with duplicate removal, to being judged to be in the identification step of described overlapping region that described overlapping region is that the described of true overlapping region judges that object person's handwriting goes overlap processing for a pair, export through described go overlap processing after judge object person's handwriting described a pair.
As mentioned above, person's handwriting overlap processing device of the present invention and electronic book equipment, for a pair judgement object person's handwriting that person's handwriting overlapping ranges rate is more than threshold value, first judge to judge whether all there is the point being arranged in the overlapping region of person's handwriting scope in object person's handwriting for this pair, be judged to be that overlapping region is true overlapping region in case all depositing, judge that object person's handwriting goes overlap processing to this pair.Or, first judge to judge whether all there is the point being arranged in the overlapping region of person's handwriting scope in object person's handwriting for this pair, be judged to be that overlapping region is initial true overlapping region in case all depositing, and then judge whether there is overlapping point in this initial true overlapping region, when only there is the overlap point of above-mentioned a pair judgement object person's handwriting in overlapping region, judge that this overlapping region is as true overlapping region, judge that object person's handwriting really overlaps each other, and then carries out overlap processing for this pair.
Thus, compared with the situation that the present invention and the overlap by means of only person's handwriting scope judge person's handwriting overlap, there is higher accuracy.In addition, to a pair, the present invention does not directly judge that object person's handwriting determines whether to there is overlapping point, for most of situation that overlapping region is pseudo-overlapping region, can judge without the need to carrying out overlap point, overlapping result is there is not, therefore, it is possible to have very high efficiency by means of only identification portion, overlapping region judges to judge for a pair whether all to exist in object person's handwriting the point that is arranged in overlapping region.Further, the present invention only folds in true weight the judgement that intra-zone carries out overlapping point, therefore with to judging that object person's handwriting entirety carries out compared with overlapping judgement of putting, also having very high efficiency for a pair.In addition, for going overlap processing the present invention to allow user flexibility to select multiple disposal route, improve the effect of overlap processing.
In sum, according to the present invention, can provide a kind of person's handwriting overlap processing device and electronic book equipment, can show the person's handwriting from multiple user simultaneously, that carries out person's handwriting by the intention of user expeditiously with pin-point accuracy goes overlap processing.
Accompanying drawing explanation
Fig. 1 is the block diagram of the general configuration representing electronic book equipment of the present invention.
Fig. 2 represents the main flow of the process that overlap processing module is carried out.
Fig. 3 A is the process flow diagram representing the overlapping determination processing of person's handwriting of the present invention.
Fig. 3 B is the process flow diagram of the variation representing the overlapping determination processing of person's handwriting of the present invention.
Fig. 3 C represents the concrete example of the process of step S301 in Fig. 3 A.
Fig. 3 D represents the concrete example of the process of step S304 in Fig. 3 A.
Fig. 4 is for schematically showing the overlapping judgment mode of traditional person's handwriting.
Fig. 5 A represents in the overlapping region identification of the overlapping determination processing of the person's handwriting of Fig. 3 A and judges whether person's handwriting falls into a little the flow process of the method for overlapping region.
Fig. 5 B represents in the overlapping determination processing of the person's handwriting of Fig. 3 B, judges the flow process of the method that whether there is overlapping point in overlapping region in the identification of overlapping region.
Fig. 6 represents to point out person's handwriting duplicate removal to fold the process flow diagram of mode to user.
Fig. 7 represents that person's handwriting goes the concrete mode example of overlap mode.
Fig. 8 represents the concrete structure of overlap processing module of the present invention.
Embodiment
Be described the specific embodiment of the present invention referring to accompanying drawing, but, embodiment is hereinafter described only an example of the present invention, and the scope of protection of present invention is not by the restriction of this embodiment.Wherein, " person's handwriting " alleged by the present invention refers to the mark that user does reading object, is inputted by user by input equipment, and such input equipment can be touch apparatus or keyboard etc.
Should be noted that in addition, " person's handwriting is overlapping " of the multiple users alleged by the present invention is overlaps of the person's handwriting for same reading object, but to those skilled in the art, even if be not the person's handwriting of same reading object, same overlapping determination processing can certainly be carried out.But, for simplicity, hereinafter when not mentioning especially, the person's handwriting being all defaulted as same reading object is overlapping.
Fig. 1 is the general configuration block diagram of electronic book equipment 1 of the present invention.This electronic book equipment 1 comprises data store 2, person's handwriting management department 3, Content Management portion 4, user management portion 5, master controller 6, hand-written handling part 7, overlap processing module 8, touch panel 9, display 10 and communication interface 11 etc.Communication interface 11 in the present invention communicates with external unit or other electronic book equipment, follows the arbitrary Wireless/wired communication standards such as wifi standard, 3G communication standard, infrared standard, bluetooth standard, microwave standard.
Wherein, user management portion 5 manages each user having been carried out certification through communication interface 11 by master controller 6.Here alleged user and electronic book equipment are bound, equipment Serial Number uniquely given when dispatching from the factory according to electronic book equipment and determining.But an electronic book equipment also can be adopted can to log in multiple user, and each user determines according to respective user's sequence number.
Content Management portion 4 leading subscriber is bought and is downloaded to the content in electronic book equipment, when an electronic book equipment can log in multiple user, by each user management content to make the only having user through authorizing can obtain the access rights of content.The mark (person's handwriting) that person's handwriting management department 3 does the user obtained via hand-written handling part 7 or manage through the person's handwriting that communication interface 11 receives, is associatedly kept in data store 2 with reading object as required by the person's handwriting of user.
In addition, the information of above-mentioned user, the information of content are also all kept in data store 2.
Touch panel 9 works as the input equipment of user, for receiving the person's handwriting that user does.Hand-written handling part 7 receives the handwriting information sent from touch panel 9, and this handwriting information is carried out division process by prespecified overlap processing unit, then sends to person's handwriting management department 3.Here, the data of a large amount of points that the finger of the user that the person's handwriting of user is recognized by touch panel 9 or felt pen touch formed, and preserve X-direction coordinate and the Y direction coordinate of the sampled point of all predetermined distances forming this person's handwriting in the data message of this person's handwriting.In addition, hand-written handling part 7 also receives other operation of user from touch panel 9, such as when providing option of operation by display 10 couples of users, hand-written handling part 7 receives the operation of user by touch panel 9 pairs of option of operation, result is sent to master controller 6.
The mode of choosing of above-mentioned overlap processing unit does not limit, include, for example as follows: by not shown touch panel running time monitoring unit, (1) monitors that user is marked by touch panel and forms the time of person's handwriting, (official hour window is greater than when monitoring user's certain time, this time window can set as the case may be and arbitrarily) when there is no an operating touch panel, be judged to be that user has interrupted the operation of touch panel, using the point obtained in during being split by each point of interruption the continuous print person's handwriting that forms as overlap processing unit; (2) person's handwriting that user does is identified, using minimum morpheme (such as a character, East Asia word, a western language word etc.) as overlap processing unit; (3) obtain the reading object of active user from controller 6, divide overlap processing unit by the position at the blank position of reading object.
Certainly, the division process of overlap processing unit must not undertaken by hand-written handling part 7, being saved in person's handwriting in data store 2 through above-mentioned person's handwriting management department 3 can without division process, and being identified the handwriting by overlap processing module 8 described later divides according to overlap processing unit.
Whether overlap processing module 8 is overlapping for judging the person's handwriting of multiple user, and provides overlap processing.Specifically, master controller 6 obtains the handwriting information of other user through communication interface 11, or obtains the handwriting information of local user from data store 2, and the person's handwriting for same reading object is sent to overlap processing module 8.At this moment, determine whether by overlap processing module 8 overlap that there is person's handwriting, and the result of this judgement is prompted to local user, request user is confirmed whether that carrying out duplicate removal folds and go overlap mode.Then, by overlap processing module 8, the person's handwriting of duplicate removal poststack is sent to display, show on display 10 together with reading object.
In addition, when electronic book equipment 1 receives the person's handwriting solicited message from other electronic book equipment, first verify whether the user of request source is proper user by user management portion 5, when by checking, master controller 6 controls person's handwriting management department 3 and read requested person's handwriting from data store 2, sends through communication interface 11 pairs of request sources.
Referring to accompanying drawing 2 ~ 7, the process that overlapping processing module 8 is carried out is described in detail.Wherein, for convenience's sake, hypothesis has three users A, B, C herein, and user A shows by the user C request as local user together with the person's handwriting of user B.The input of this instruction of user C can by showing corresponding function and receiving user's instruction by touch panel and realize over the display.
Fig. 2 represents the main flow of the process that overlap processing module 8 is carried out.
First, according to the instruction from user C, master controller 6 asks the person's handwriting of user A and user B to send to overlap processing module 8(step S201).Then, overlap processing module 8 judges the person's handwriting whether overlapping (step S202) of user A and user B, if exist overlapping, then provide overlap mode option (step S203) for you to choose to user C, selected to go overlap mode by user, then according to user-selected go overlap mode or acquiescence go overlap mode to carry out person's handwriting to go overlap processing (step S205), then will carry out going the person's handwriting of the user A after overlap processing and user B to export.If there is no overlapping, then direct user A to be shown (step S204) together with the person's handwriting of user B.
Be described in detail with reference to the example of Fig. 3 A to the concrete treatment scheme of step S202.
First, to carrying out the overlapping user A of judgement and the person's handwriting of user B, four apex coordinates (step S301) of respective person's handwriting scope are obtained by overlap processing unit.Should be noted that, the person's handwriting of user A and user B is made up of the person's handwriting of multiple overlap processing unit, before the process performing step S301, also can be as required, which according to the position of person's handwriting on reading object of each overlap processing unit, judge in advance to need to carry out overlap processing (namely determining to judge to judge object person's handwriting a pair of object as overlap) to the person's handwriting of both overlap processing units.
Fig. 3 C illustrates a concrete example of the process of step S301.Herein for simplicity, the situation that to illustrate with a Chinese character be overlap processing unit.Illustrate user A and user B in this Fig. 3 C and write " Lee " word and " army " word respectively, obtain four respective apex coordinate (X respectively by step S301 1min, Y 1min), (X 1max, Y 1min), (X 1min, Y 1max), (X 1max, Y 1max); (X 2min, Y 2min), (X 2max, Y 2min), (X 2min, Y 2max), (X 2max, Y 2max).Coordinate system herein take the upper left corner as initial point, and the positive dirction of X-axis and Y-axis is respectively the rectangular coordinate system in right direction and lower direction, but is not limited to this, can adopt arbitrary coordinate system.Further, in the example of Fig. 3 C, the person's handwriting scope of overlap processing unit (such as a Chinese character) is rectangular, but is not limited thereto, and can be arbitrary quadrilateral, and the determination of person's handwriting scope can adopt known any-mode.
Then, after the step S301 of Fig. 3 A, calculating will carry out respective area and the person's handwriting overlapping ranges rate (hereinafter as " Duplication ") (step S302) of two the person's handwriting scopes judged, alleged herein " Duplication " is the ratio of smaller in the overlapping region area of two person's handwriting scopes and the area of these two person's handwriting scopes.Such as, in the step S302 of Fig. 3 A, illustrate three kinds of examples that Duplication is 0%, 40% and 100%.The calculating of Duplication and area can adopt existing method, repeats no more herein.
Then, judge whether Duplication is more than predetermined threshold value (step S303).Here predetermined threshold value is generally empirical value (such as 20%), even if it can guarantee that two person's handwriting scopes exist the Duplication of this threshold size, does not also affect the identification of user to two person's handwritings.
When the judged result of step S303 be Duplication be less than threshold value (judged result is no), then think person's handwriting zero lap, and end process.
When the judged result of step S303 be Duplication is more than threshold value (judged result is yes), then thinks to there is overlapping possibility, continue the overlapping region identification of follow-up S304 ~ S307.
In the identification of overlapping region, first obtain four apex coordinates (step S304) of overlapping region.Illustrate four summits with Fig. 3 C person's handwriting overlapping ranges region under similar circumstances in Fig. 3 D, can see according to this figure, the coordinate on four summits of overlapping region is (X respectively 0min, Y 0min), (X 0max, Y 0min), (X 0min, Y 0max), (X 0max, Y 0max).Herein because the person's handwriting scope of overlap processing unit is rectangle, thus overlapping region is also rectangular, but overlapping region is not limited by this certainly, can be arbitrary quadrilateral.
Then, judge whether Duplication is 100%, if so, then transfers to step S307, judge whether fall into overlapping region a little in the person's handwriting that person's handwriting scope is large.If no, then representing that overlapping region is pseudo-overlapping region, there is not real overlapping possibility in two person's handwritings, if had, then represents that overlapping region is true overlapping region, thinks that existence is real overlapping.
In addition, when being judged as that Duplication is not equal to 100% in step S305, transfer to step S306 and judge whether fall into overlapping region a little in the person's handwriting that person's handwriting scope is little, if, do not represent that overlapping region is pseudo-overlapping region, two person's handwritings are inreal overlapping, if had, then transfer to the process of step S307.
Use in Fig. 5 A description of step S306 and step S307 how to judge whether fall into overlapping region a little in person's handwriting below.First, in step S501, judge the size in the X-axis of overlapping region and Y direction, that is, judge whether to meet X 0max-X 0min≤ Y 0max-Y 0min.If met, then proceed to step S502, to whether there is X-axis coordinate (X in object person's handwriting i) meet X 0min< X i< X 0maxpoint judge.If existed, proceed to step S503, judge whether the Y-axis coordinate of these points meets Y further 0min< Y i< Y 0max.If met, be then judged to be in object person's handwriting, to there is the point fallen in overlapping region.If result arbitrary in step S502 and step S503 is no, be then judged to be in object person's handwriting, to there is not the point fallen in overlapping region.Here alleged " object person's handwriting " refers to the little person's handwriting of person's handwriting scope in step S306, refers to the person's handwriting that person's handwriting scope is large in step S307.
The process of the process of step S504 ~ S505 and step S502 ~ S503 is similar, just first carries out in the Y-axis direction judging and then judging X-axis coordinate.By the decision method illustrated by Fig. 5 A, first the X-direction of overlapping region and the size of Y direction are compared, then, direction less in the two first judges, then larger in the two again direction judges.Thus judgement efficiency can be improved to a certain extent.
Above an example of the overlapping determination processing (the step S202 namely in Fig. 2) of the person's handwriting carried out in overlap processing module 8 of the present invention is illustrated.
In the overlapping determination processing of traditional person's handwriting, whether the area by means of only judgement two person's handwriting scopes exists overlap, namely determines that whether person's handwriting is overlapping.In this case, as shown in Figure 4, in fact there is not overlap in two person's handwritings, can clearly distinguish, but still obtain the result that there is person's handwriting overlap in traditional overlapping determination processing.And according to above-mentioned process of the present invention, can avoid going overlap processing to the situation shown in Fig. 4, save the resource of processor, realize overlappingly judging more accurately, thus can carry out more accurately of the present inventionly going overlap processing.
But, the result judged at above-mentioned steps S307, as when being, although two judge to drop on all a little in overlapping region in object person's handwritings, can not guarantee that the person's handwriting of both sides in this overlapping region necessarily exists overlap.Therefore, judging to carry out overlap more high-precision than Fig. 3 A, the variation shown in following Fig. 3 B can be considered.
Fig. 3 B is the process flow diagram of the variation representing the overlapping determination processing of person's handwriting of the present invention.Process flow diagram shown in wherein step S301 ~ step S306 with above-mentioned Fig. 3 A is identical, and description will be omitted.Only be with the difference of Fig. 3 A in Fig. 3 B, when being judged to be in step S307 ', overlapping region is not judged to be true overlapping region, but be judged to be initial true overlapping region, think the person's handwriting of both sides exist overlapping may but might not real overlap, and carry out the judgement of step S308 further.
Namely, when the result of determination of S307 ' is for being, and then transfer to step S308, judge the overlapping point that whether there are two person's handwritings in this initial true overlapping region, if there is no, then represent that person's handwriting is inreal overlapping, if existed, then represent that person's handwriting is really overlapping, this overlapping region is true overlapping region.
Then Fig. 5 B is used to illustrate the overlapping point how judging whether to exist in overlapping region person's handwriting.
Illustrate the example in person's handwriting overlap and nonoverlapping two kinds of situations above Fig. 5 B, which show the overlapping region (X of above-mentioned Fig. 3 D 0min, Y 0min), (X 0max, Y 0min), (X 0min, Y 0max), (X 0max, Y 0max) person's handwriting L1 and L2 of interior user A, B.This overlapping region is the initial true overlapping region judged in the above-mentioned steps S307 ' of Fig. 3 B.
First, in step S5501, calculate person's handwriting L1 and L2 in overlapping region at the projection (Δ X1, Δ Y1) of X-axis and Y-axis and (Δ X2, Δ Y2).Then, in step S5502 and step S5503, judge whether L1 and L2 exists overlap in the view field of X-axis and Y-axis.That is, in step S5502, judge whether Δ X1 exists overlapping with Δ X2, in step S5503, judge whether Δ Y1 exists overlapping with Δ Y2, if there is one to there is not overlap, is then judged to be person's handwriting zero lap, ends process.
Step S5504 is transferred to after step S5503 terminates, judge that whether overlap length in X-axis is as below the overlap length in Y-axis, overlap length in X-axis is below the overlap length in Y-axis, transfer to step S5505, for the point (X forming person's handwriting L1 and L2 1i, Y 1i) and (X 2i, Y 2i), judgement X-coordinate is in the (X in the overlapping range in X-axis 1i, Y 1i) and (X 2i, Y 2i) whether there is same coordinate---the identical and point that Y-axis coordinate is also identical (i.e. the overlapping point of person's handwriting) of X-axis coordinate.If existed, be then judged to be to exist overlapping (namely this initial true overlapping region is true overlapping region), if there is no, be then judged to be zero lap, this initial true overlapping region is pseudo-overlapping region.
When the result of determination of step S5504 is no, transfers to step S5506, the judgement similar with step S5505 is carried out to Y direction.
In the same manner as the decision method represented by Fig. 5 A, when judging whether there is the overlap point of person's handwriting in initial true overlapping region, the size of the drop shadow spread overlapping region in the X first identified the handwriting, Y-axis compares, direction less in the two judges, judgement efficiency can be improved to a certain extent.
In above-mentioned variation, to a pair, the present invention does not directly judge that object person's handwriting determines whether to there is overlapping point, for most of situation that overlapping region is pseudo-overlapping region, can without the need to carrying out the judgement of overlapping point, overlapping result is there is not, therefore, it is possible to have very high efficiency by means of only identification portion, overlapping region judges to judge for a pair whether all to exist in object person's handwriting the point that is arranged in overlapping region.Further, the present invention only folds in initial true weight the judgement that intra-zone carries out overlapping point, therefore with to judging that object person's handwriting entirety carries out compared with overlapping judgement of putting, also having very high efficiency for a pair.
Referring to Fig. 6, the step S203 in Fig. 2 is described.
The result of the overlapping region identification process shown in Fig. 3 A is for depositing in a case of overlap (namely the result of step S202 is "Yes"), first person's handwriting overlap (step S601) is existed to user's prompting, and user also can be asked as required to be confirmed whether, and needing to carry out duplicate removal folds simultaneously.What then judge whether user be provided with acquiescence goes overlap mode (step S602), if arranged, then according to selection mode process person's handwriting overlap (step S606) of user, if do not arranged, overlap mode options for user is gone to select (step S603) to user's prompting.
Further, when overlap mode option going to user's prompting in step S603, also can in the lump to user's prompting can by its overlap mode of going select use as default, or also directly the selection of user can be worth by default without the need to user's confirmation.
After user have selected overlap mode, carry out overlap processing (step S604) by the selection of user.Here, the person's handwriting duplicate removal that the step S604 represented in Fig. 6 and step S606 is equivalent to represent in above-mentioned Fig. 2 folds treatment S 205.
Then, Fig. 7 is used to be described the overlap mode of going that step S603 is supplied to user.
In Fig. 7, (1) represents one---the shift position going overlap mode.In figure, two rectangle frames represent the person's handwriting scope of two person's handwritings overlapped each other.The X-direction size of overlapping region is Δ x, and Y direction size is Δ y.Overlap mode is gone as shift position, can by two person's handwritings respectively left and the Δ x/2 that moves right, or respectively to upper and move down Δ y/2.Certainly, as long as result makes the relative position between them produce the movement of X-direction Δ x or/and the movement of Y direction Δ y, concrete move mode not circumscribed.
In Fig. 7, (2) represent one---the convergent-divergent size of going overlap mode.Illustrate X in figure, Y direction length be respectively x1, y1 and x2, two person's handwriting scopes overlapped each other 1,2 of y2, the X-direction size of overlapping region is Δ x, and Y direction size is Δ y.Go overlap mode as convergent-divergent size, illustrate the situation of two person's handwritings convergent-divergent in the Y-axis direction in figure.Such as, for person's handwriting 1, be multiplied by the ratio of (y1-Δ y/2)/y1 in the Y-axis direction, for person's handwriting 2, be multiplied by the ratio of (y2-Δ y/2)/y2 in the Y-axis direction.Can certainly convergent-divergent in the X-axis direction, or keep person's handwriting originally the ratio of width to height and in Y direction and X-direction convergent-divergent simultaneously, as long as after convergent-divergent two person's handwritings can be made to there is not overlapping region.
In addition, except above-mentioned shift position and convergent-divergent size, what can also use other goes overlap mode, such as, make the person's handwriting of different user be shown as different colors, is hidden by the person's handwriting of a certain user.Further, above-mentionedly all go overlap mode also can be bonded to each other and formed new to go overlap mode.In addition, the situation making overlapping region be entirely zero is illustrated in the example of Fig. 7, but be not limited thereto, do not affect as long as result that is mobile or convergent-divergent can make overlapping region be reduced to the degree that user identifies, such as, can be less than the degree of above-mentioned predetermined threshold value for Duplication.
Finally, be described with reference to the concrete structure of Fig. 8 to overlap processing module 8 of the present invention.
As shown in Figure 8, overlap processing module 8 comprises the calculating of person's handwriting overlapping ranges rate detection unit 11, identification portion, overlapping region 12, goes overlap mode display part 13 and duplicate removal to fold handling part 15.
Wherein, person's handwriting overlapping ranges rate calculates detection unit 11 for performing the step S301 ~ S303 shown in the step S201 shown in above-mentioned Fig. 2 and above-mentioned Fig. 3.Identification portion, overlapping region 12 for performing above-mentioned overlapping region identification, i.e. step S304 ~ S307 shown in above-mentioned Fig. 3 A, or the step S304 shown in Fig. 3 B ~ S308.Go overlap mode display part 13 for performing the step S601 ~ S603 of above-mentioned Fig. 6.And duplicate removal folds handling part 15 for performing the step S604 of above-mentioned Fig. 6.
Instantiation below in conjunction with above-mentioned user A, B, C is described the detailed operation mode of each component part in overlapping processing module 8.
First, local user C to user A, B request for the person's handwriting of same reading object.After user A, B allow, the person's handwriting that master controller 6 obtains user A, B sends to the person's handwriting overlapping ranges rate of overlap processing module 8 to calculate detection unit 11.Person's handwriting overlapping ranges rate calculates in detection unit 11 and asks for four apex coordinates by the person's handwriting scope of overlap processing unit to the judgement object person's handwriting from user A, B, and then ask for area and the Duplication of each person's handwriting scope, judge whether Duplication is less than above-mentioned predetermined threshold value, if be less than this threshold value, be judged to be to there is not person's handwriting overlap, person's handwriting is outputted to display 10, if for more than this threshold value, the area of all data and person's handwriting, person's handwriting scope and Duplication are sent to identification portion, overlapping region 12.
Identification portion, overlapping region 12 is according to the step S304 in above-mentioned steps S304 ~ step S307(or variation ~ step S308) judge that whether the person's handwriting of user A and user B is overlapping, if result is no, then person's handwriting is directly outputted to display 10, if result is yes, then all data are sent to overlap mode display part 13.
Go overlap mode display part 13 according to above-mentioned steps S601 ~ S603, on display 10 user is provided to the option of overlap mode, and all data are passed to duplicate removal fold handling part 15.User is operated by above-mentioned touch panel 9, and the result of this operation is obtained by hand-written handling part 7, sends to master controller 6, and then is delivered to duplicate removal and folds handling part 15.Duplicate removal folds the operation that handling part 15 carries out according to user, uses user-selected to go overlap mode to identify the handwriting to carry out overlap processing, result sent to display 10 to show.
Above a kind of concrete structure example of overlapping processing module 8 is illustrated, but the present invention is not limited thereto, as long as the process shown in above-mentioned Fig. 2 can be performed.
In addition, the situation that the person's handwriting from two users is processed all is merely illustrated in above-mentioned each example, but to those skilled in the art, by carrying out above-mentioned process to the person's handwriting of any two users all in the person's handwriting from multiple user, easily the present invention can be applied to the situation that the person's handwriting from multiple user is processed.
In addition, the present invention is not limited to above-described embodiment, comprises various variation.Such as, above-described embodiment is the detailed description done for ease of the present invention being described with understanding, and is not limited to all structures that must possess explanation.In addition, a part for the structure of certain embodiment can be replaced into the structure of other embodiments, or in the structure of certain embodiment, add the structure of other embodiments.In addition, for a part for the structure of each embodiment, can add, delete, replace other structures.
In addition, part or all of above-mentioned each structure, also can be explained by processor by integrated circuit (IC) design etc. and with hardware implementing, perform the program that realizes each function and use software simulating.In addition, control line and signal wire illustrate to be thought and illustrates upper necessary, might not illustrate control lines all on product and information wire.In fact also can think that nearly all structure is all interconnected.
The present invention can be applied to electronic book equipment, such as panel computer, electronic paper reader, portable phone etc., is particularly suitable for sharing between multi-user the situation that the reading for same reading object marks.

Claims (21)

1. a person's handwriting overlap processing device, receives the input of multiple person's handwriting be made up of a large amount of points, is exported by the plurality of person's handwriting, it is characterized in that, comprising any two person's handwritings all of the plurality of person's handwriting after going overlap processing:
Person's handwriting overlapping ranges rate calculates detection unit, for any two person's handwritings in described multiple person's handwriting of input, determine that the multiple of the two judge to judge object person's handwriting a pair of object as overlapping by respective overlap processing unit, calculate the described respective area of person's handwriting scope and the area of overlapping region that judge object person's handwriting for a pair, ask for person's handwriting overlapping ranges rate and then judge that whether this person's handwriting overlapping ranges rate is as more than predetermined threshold value;
Identification portion, overlapping region, when described person's handwriting overlapping ranges rate calculating detection unit is judged to be that described person's handwriting overlapping ranges rate is more than described threshold value, judge whether all there is the point being arranged in described overlapping region in described a pair judgement object person's handwriting, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region described a pair, be judged to be that described overlapping region is true overlapping region, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region not described a pair, be judged to be that described overlapping region is pseudo-overlapping region, with
Duplicate removal folds handling part, to being judged to be that by identification portion, described overlapping region described overlapping region is that the described of true overlapping region judges that object person's handwriting goes overlap processing for a pair, export through described go overlap processing after judge object person's handwriting described a pair.
2. a person's handwriting overlap processing device, receives the input of multiple person's handwriting be made up of a large amount of points, is exported by the plurality of person's handwriting, it is characterized in that, comprising any two person's handwritings all of the plurality of person's handwriting after going overlap processing:
Person's handwriting overlapping ranges rate calculates detection unit, for any two person's handwritings in described multiple person's handwriting of input, determine that the multiple of the two judge to judge object person's handwriting a pair of object as overlapping by respective overlap processing unit, calculate the described area of respective person's handwriting scope of a pair judgement object person's handwriting and the area of the overlapping region of person's handwriting scope, ask for person's handwriting overlapping ranges rate and then judge that whether this person's handwriting overlapping ranges rate is as more than predetermined threshold value;
Identification portion, overlapping region, when described person's handwriting overlapping ranges rate calculating detection unit is judged to be that described person's handwriting overlapping ranges rate is more than described threshold value, judge whether all there is the point being arranged in described overlapping region in described a pair judgement object person's handwriting, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region described a pair, be judged to be that described overlapping region is for initial true overlapping region, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region not described a pair, be judged to be that described overlapping region is pseudo-overlapping region, and then, for described initial true overlapping region, judge wherein whether there is the described overlapping point judging object person's handwriting for a pair, when there is overlapping point, be judged to be that described overlapping region is true overlapping region, when there is not overlapping point, be judged to be that described overlapping region is pseudo-overlapping region, with
Duplicate removal folds handling part, to being judged to be that by identification portion, described overlapping region described overlapping region is that the described of true overlapping region judges that object person's handwriting goes overlap processing for a pair, export through described go overlap processing after judge object person's handwriting described a pair.
3. person's handwriting overlap processing device as claimed in claim 1 or 2, is characterized in that:
Described person's handwriting overlapping ranges rate is the described ratio that the area of the overlapping region of object person's handwriting accounts for the area of the side that person's handwriting scope is little in described a pair judgement object person's handwriting that judges for a pair.
4. person's handwriting overlap processing device as claimed in claim 1 or 2, is characterized in that:
Described overlap processing unit in the following manner in any one determine:
The temporal information of the formation about this person's handwriting of preserving in the data according to described person's handwriting and determine continuous input time of person's handwriting, using the person's handwriting inputted continuously as overlap processing unit,
Text region is carried out to described person's handwriting, using minimum morpheme as overlap processing unit,
Overlap processing unit is determined according to the position of described person's handwriting.
5. person's handwriting overlap processing device as claimed in claim 1 or 2, is characterized in that, also comprise:
Remove overlap mode display part, when identification portion, described overlapping region is judged to be that described overlapping region is true overlapping region, point out user and alternatively go overlap mode, request user selects,
Described duplicate removal folds handling part, uses user-selected overlap mode of going to carry out overlap processing.
6. person's handwriting overlap processing device as claimed in claim 5, is characterized in that:
Describedly go overlap mode to comprise person's handwriting is moved, the color of convergent-divergent and change person's handwriting.
7. person's handwriting overlap processing device as claimed in claim 1 or 2, is characterized in that:
Identification portion, described overlapping region, when judging in described a pair judgement object person's handwriting, whether all existence is arranged in the point of described overlapping region,
First judge describedly to judge whether there is the point being arranged in described overlapping region in the person's handwriting of the side that the person's handwriting scope in object person's handwriting is little for a pair, in result of determination for depositing in case, judgement is described further judges whether there is the point being arranged in described overlapping region in the person's handwriting of the side that the person's handwriting scope in object person's handwriting is large for a pair.
8. person's handwriting overlap processing device as claimed in claim 1 or 2, is characterized in that:
When described person's handwriting overlapping ranges rate is 100%,
Identification portion, described overlapping region judge described judge for a pair whether all to exist in object person's handwriting be arranged in the point of described overlapping region time, only judge describedly to judge whether there is the point being arranged in described overlapping region in the person's handwriting of the side that the person's handwriting scope in object person's handwriting is large for a pair.
9. person's handwriting overlap processing device as claimed in claim 1 or 2, is characterized in that:
Identification portion, described overlapping region judge described judge whether there is the point being arranged in described overlapping region in object person's handwriting for a pair time, the size of the size in the horizontal direction of described overlapping region and vertical direction is detected,
When the horizontal direction size of described overlapping region is less than or equal to vertical direction size, first judge whether there is the point that horizontal direction coordinate is positioned at the horizontal direction coordinate range of described overlapping region in described a pair judgement object person's handwriting, in result of determination for depositing in case, whether the vertical direction coordinate of these points of further judgement is positioned at the vertical direction coordinate range of described overlapping region
When the vertical direction size of described overlapping region is less than horizontal direction size, first judge whether there is the point that vertical direction coordinate is positioned at the vertical direction coordinate range of described overlapping region in described a pair judgement object person's handwriting, in result of determination for depositing in case, judge whether the horizontal direction coordinate of these points is positioned at the horizontal direction coordinate range of described overlapping region further.
10. person's handwriting overlap processing device as claimed in claim 2, is characterized in that:
When whether identification portion, described overlapping region exists the overlap point of described a pair judgement object person's handwriting in the described initial true overlapping region of judgement,
In described initial true overlapping region, judge that object person's handwriting projects separately in the horizontal direction and the vertical direction by described a pair, the size of the overlapping region of the projection in both direction compared,
When the size of projection overlapping region is in the horizontal direction less than or equal to vertical direction, judge that coordinate figure in the point that object person's handwriting is included separately, horizontal direction is positioned at the point of the projection overlapping region of described horizontal direction for described a pair, determine whether to there is the horizontal direction point all identical with the coordinate of vertical direction
When the size of projection overlapping region is in the horizontal direction greater than vertical direction, judge that coordinate figure in the point that object person's handwriting is included separately, vertical direction is positioned at the point of the scope of the projection overlapping region of described vertical direction for described a pair, determine whether to there is the horizontal direction point all identical with the coordinate of vertical direction.
11. 1 kinds of electronic book equipments, is characterized in that, comprising:
Touch panel, touches and written handwriting for user's finger or felt pen;
Hand-written handling part, according to the person's handwriting that user is write by described touch panel, generates the data of the person's handwriting be made up of a large amount of points;
Management department, to the user of local user and other electronic book equipment, the content-data that local user is bought, downloaded, and the person's handwriting that local user is done manages;
Communication interface part, communicates with other electronic book equipment, receives the handwriting data of the user from other electronic book equipment;
Data store, preserves the data of described person's handwriting, described user and described content;
Display, for showing the data being kept at content in described data store and person's handwriting;
Person's handwriting overlap processing device described in any one of claim 1 ~ 10; With
Master controller, controls all parts of described electronic book equipment,
When local user request shows the person's handwriting from multiple user simultaneously, described master controller receives the person's handwriting of multiple user by described communication interface, the person's handwriting of described person's handwriting overlap processing device to described multiple user goes overlap processing, and go the person's handwriting after overlap processing to be sent to described display by having carried out, show with being kept at together with the described content in described data store.
12. 1 kinds of person's handwriting overlap processing methods, for multiple person's handwriting be made up of a large amount of points, export to user after overlap processing is gone to any two person's handwritings all, it is characterized in that, comprising:
Person's handwriting overlapping ranges rate calculates determination step, for any two person's handwritings in described multiple person's handwriting, determine that the multiple of the two judge to judge object person's handwriting a pair of object as overlapping by respective overlap processing unit, calculate the described respective area of person's handwriting scope and the area of overlapping region that judge object person's handwriting for a pair, ask for person's handwriting overlapping ranges rate and then judge that whether this person's handwriting overlapping ranges rate is as more than predetermined threshold value;
Overlapping region identification step, when being judged to be that described person's handwriting overlapping ranges rate is more than described threshold value in described person's handwriting overlapping ranges rate calculating determination step, judge whether all there is the point being arranged in described overlapping region in described a pair judgement object person's handwriting, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region described a pair, be judged to be that described overlapping region is true overlapping region, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region not described a pair, be judged to be that described overlapping region is pseudo-overlapping region, with
Duplicate removal folds treatment step, to being judged to be in the identification step of described overlapping region that described overlapping region is that the described of true overlapping region judges that object person's handwriting goes overlap processing for a pair, export through described go overlap processing after judge object person's handwriting described a pair.
13. 1 kinds of person's handwriting overlap processing methods, for multiple person's handwriting be made up of a large amount of points, export to user after overlap processing is gone to any two person's handwritings all, it is characterized in that, comprising:
Person's handwriting overlapping ranges rate calculates determination step, for any two person's handwritings in described multiple person's handwriting, determine that the multiple of the two judge to judge object person's handwriting a pair of object as overlapping by respective overlap processing unit, calculate the described area of respective person's handwriting scope of a pair judgement object person's handwriting and the area of the overlapping region of person's handwriting scope, ask for person's handwriting overlapping ranges rate and then judge that whether this person's handwriting overlapping ranges rate is as more than predetermined threshold value;
Overlapping region identification step, when being judged to be that described person's handwriting overlapping ranges rate is more than described threshold value in described person's handwriting overlapping ranges rate calculating determination step, judge whether all there is the point being arranged in described overlapping region in described a pair judgement object person's handwriting, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region described a pair, be judged to be that described overlapping region is for initial true overlapping region, when judging that in object person's handwriting, all existence is arranged in the point of described overlapping region not described a pair, be judged to be that described overlapping region is pseudo-overlapping region, and then, for described initial true overlapping region, judge wherein whether there is the described overlapping point judging object person's handwriting for a pair, when there is overlapping point, be judged to be that described overlapping region is true overlapping region, when there is not overlapping point, be judged to be that described overlapping region is pseudo-overlapping region, with
Duplicate removal folds treatment step, to being judged to be in the identification step of described overlapping region that described overlapping region is that the described of true overlapping region judges that object person's handwriting goes overlap processing for a pair, export through described go overlap processing after judge object person's handwriting described a pair.
14. person's handwriting overlap processing methods as described in claim 12 or 13, is characterized in that:
Described person's handwriting overlapping ranges rate is the described ratio that the area of the overlapping region of object person's handwriting accounts for the area of the side that person's handwriting scope is little in described a pair judgement object person's handwriting that judges for a pair.
15. person's handwriting overlap processing methods as described in claim 12 or 13, is characterized in that:
Described overlap processing unit in the following manner in any one determine:
The temporal information of the formation about this person's handwriting of preserving in the data according to described person's handwriting and determine continuous input time of person's handwriting, using the person's handwriting inputted continuously as overlap processing unit,
Text region is carried out to described person's handwriting, using minimum morpheme as overlap processing unit,
Overlap processing unit is determined according to the position of described person's handwriting.
16. person's handwriting overlap processing methods as described in claim 12 or 13, is characterized in that, also comprise:
Remove overlap mode step display, when being judged to be described Shi Zhen overlapping region, overlapping region in the identification step of described overlapping region, point out user and alternatively go overlap mode, request user selects,
Described duplicate removal is folded in treatment step, uses user-selected overlap mode of going to carry out overlap processing.
17. person's handwriting overlap processing methods as claimed in claim 16, is characterized in that:
Describedly go overlap mode to comprise person's handwriting is moved, the color of convergent-divergent and change person's handwriting.
18. person's handwriting overlap processing methods as described in claim 12 or 13, is characterized in that:
In the identification step of described overlapping region, when judging in described a pair judgement object person's handwriting, whether all existence is arranged in the point of described overlapping region,
First judge describedly to judge whether there is the point being arranged in described overlapping region in the person's handwriting of the side that the person's handwriting scope in object person's handwriting is little for a pair, in result of determination for depositing in case, judgement is described further judges whether there is the point being arranged in described overlapping region in the person's handwriting of the side that the person's handwriting scope in object person's handwriting is large for a pair.
Person's handwriting overlap processing method described in 19. claims 12 or 13, is characterized in that:
When described person's handwriting overlapping ranges rate is 100%,
In the identification step of described overlapping region judge described judge for a pair whether all to exist in object person's handwriting be arranged in the point of described overlapping region time, only judge describedly to judge whether there is the point being arranged in described overlapping region in the person's handwriting of the side that the person's handwriting scope in object person's handwriting is large for a pair.
20. person's handwriting overlap processing methods as described in claim 12 or 13, is characterized in that:
In the identification step of described overlapping region,
Judge described judge whether there is the point being arranged in described overlapping region in object person's handwriting for a pair time, the size of the size in the horizontal direction of described overlapping region and vertical direction is detected,
When the horizontal direction size of described overlapping region is less than or equal to vertical direction size, first judge whether there is the point that horizontal direction coordinate is positioned at the horizontal direction coordinate range of described overlapping region in described a pair judgement object person's handwriting, in result of determination for depositing in case, whether the vertical direction coordinate of these points of further judgement is positioned at the vertical direction coordinate range of described overlapping region
When the vertical direction size of described overlapping region is less than horizontal direction size, first judge whether there is the point that vertical direction coordinate is positioned at the vertical direction coordinate range of described overlapping region in described a pair judgement object person's handwriting, in result of determination for depositing in case, judge whether the horizontal direction coordinate of these points is positioned at the horizontal direction coordinate range of described overlapping region further.
21. person's handwriting overlap processing methods as claimed in claim 13, is characterized in that:
Described overlapping region identification step, when judging the overlap point that whether there is described a pair judgement object person's handwriting in described initial true overlapping region,
In described initial true overlapping region, judge that object person's handwriting projects separately in the horizontal direction and the vertical direction by described a pair, the size of the overlapping region of the projection in both direction compared,
When the size of projection overlapping region is in the horizontal direction less than or equal to vertical direction, judge that coordinate figure in the point that object person's handwriting is included separately, horizontal direction is positioned at the point of the projection overlapping region of described horizontal direction for described a pair, determine whether to there is the horizontal direction point all identical with the coordinate of vertical direction
When the size of projection overlapping region is in the horizontal direction greater than vertical direction, judge that coordinate figure in the point that object person's handwriting is included separately, vertical direction is positioned at the point of the scope of the projection overlapping region of described vertical direction for described a pair, determine whether to there is the horizontal direction point all identical with the coordinate of vertical direction.
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CN114610188A (en) * 2022-02-09 2022-06-10 广东能龙教育股份有限公司 Interface handwriting writing method and system, control device and storage medium
CN114610188B (en) * 2022-02-09 2024-02-13 广东能龙教育股份有限公司 Interface handwriting writing method and system, control device and storage medium

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