CN106056049A - Chinese character writing stroke detection method and device - Google Patents
Chinese character writing stroke detection method and device Download PDFInfo
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- CN106056049A CN106056049A CN201610345297.4A CN201610345297A CN106056049A CN 106056049 A CN106056049 A CN 106056049A CN 201610345297 A CN201610345297 A CN 201610345297A CN 106056049 A CN106056049 A CN 106056049A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/32—Digital ink
- G06V30/333—Preprocessing; Feature extraction
- G06V30/347—Sampling; Contour coding; Stroke extraction
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Abstract
The invention is suitable for the technical field of learning equipment, and provides a stroke detection method and a device for Chinese character writing, wherein the method comprises the following steps: receiving a first Chinese character stroke input by a user, and acquiring the center of the first Chinese character stroke; positioning the first Chinese character stroke relative to the input second Chinese character stroke to obtain the relative position of the first Chinese character stroke relative to the second Chinese character stroke; acquiring the writing vector direction of the first Chinese character stroke; detecting whether the relative position, the writing vector direction and the intersection point of the strokes of the first and second Chinese characters are consistent with stroke writing in a target Chinese character; when the relative position, the writing vector direction and the intersection point of the first Chinese character stroke and the second Chinese character stroke are consistent with the stroke writing in the target Chinese character, the first Chinese character stroke is determined to be correct stroke writing, so that the accuracy judgment of the correctness of the Chinese character stroke input by the user every time is realized, and the efficiency of Chinese character writing practice is improved.
Description
Technical field
The invention belongs to facility for study technical field, particularly relate to stroke detection method and the device of a kind of Chinese-character writing.
Background technology
Chinese-character writing is the importance of Chinese study, is also one of the important course of current primary school education, it is possible to write out
The most beautiful Chinese character embodies the Chinese proficiency of a people on certain procedures, even becomes the stepping-stone to success of a few thing.
Therefore, Chinese practice becomes one of main contents of student's primary school period, and many student schoolmates have purchased for the Chinese for student
The facility for studies such as the learning machine of word exercise, panel computer.But, these equipment are big when the Chinese character that detection or identification student are write
Using to be compareed by entirety more and judge, the order being now difficult to stroke internal to Chinese character during student's writing Chinese characters is the most correctly entered
Row judges, although some equipment can provide the multilevel iudge to stroke sequential write at present, but the degree of accuracy judged is the highest, efficiency
Lowly, have impact on the Chinese character learning efficiency of student.
Summary of the invention
It is an object of the invention to provide stroke detection method and the device of a kind of Chinese-character writing, it is intended to solve due to existing
The stroke of student's input cannot accurately be detected by technology, causes that facility for study detection efficiency is low, student's Chinese-character writing
Practise inefficient problem.
On the one hand, the invention provides the stroke detection method of a kind of Chinese-character writing, described method comprises the steps:
Receive the first Chinese-character stroke of user's input, obtain the center of described first Chinese-character stroke；
Described first Chinese-character stroke is positioned by the second Chinese-character stroke relatively inputted, and obtains described first pen for writing Chinese characters
Draw the relative position of the most described second Chinese-character stroke；
Obtain described first Chinese-character stroke writes vector direction；
Detect described relative position, described in write vector direction and the cross point of described first and second Chinese-character strokes
Whether write with stroke in target characters and be consistent；
When described relative position, described in write the cross point of vector direction and described first and second Chinese-character strokes with
When stroke is write and is consistent in target characters, determine that the stroke that described first Chinese-character stroke is correct is write.
On the other hand, the invention provides the stroke detection device of a kind of Chinese-character writing, described device includes:
Center acquiring unit, for receiving the first Chinese-character stroke of user's input, obtains in described first Chinese-character stroke
The heart；
Position acquisition unit, positions described first Chinese-character stroke for the second Chinese-character stroke relatively inputted,
Obtain the relative position of the most described second Chinese-character stroke of described first Chinese-character stroke；
Vector direction acquiring unit, writes vector direction for obtain described first Chinese-character stroke；
Stroke detector unit, be used for detecting described relative position, described in write vector direction and described first and second
Whether the cross point of Chinese-character stroke is write with stroke in target characters and is consistent；And
Result determines unit, for when described relative position, described in write vector direction and described first and second Chinese
The cross point of word stroke is write with stroke in target characters when being consistent, and determines that described first Chinese-character stroke is correct stroke book
Write.
In embodiments of the present invention, the second pen for writing Chinese characters the most inputted by the first Chinese-character stroke of detection user's input
The relative position drawn, the intersection writing vector direction and the first and second Chinese-character strokes of the first Chinese-character stroke whether with mesh
In mark Chinese character, stroke is write and is consistent, it is achieved that the accurate judgement of the Chinese-character stroke correctness of input each to user, improves the Chinese
The efficiency of word writing practising.
Accompanying drawing explanation
Fig. 1 is the flowchart of the stroke detection method of the Chinese-character writing that the embodiment of the present invention one provides；
Fig. 2 is the flowchart of the stroke detection method of the Chinese-character writing that the embodiment of the present invention two provides；
Fig. 3 is the structural representation of the stroke detection device of the Chinese-character writing that the embodiment of the present invention three provides；And
Fig. 4 is the preferred structure schematic diagram of the stroke detection device of the Chinese-character writing that the embodiment of the present invention three provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, right
The present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, and
It is not used in the restriction present invention.
Below in conjunction with specific embodiment the present invention implemented and is described in detail:
Embodiment one:
What Fig. 1 showed the stroke detection method of the Chinese-character writing that the embodiment of the present invention one provides realizes flow process, in order to just
In explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
In step S101, receive the first Chinese-character stroke of user's input, obtain the center of the first Chinese-character stroke.
The embodiment of the present invention is applicable to the facility for study with hand input device, such as, and panel computer, with hand-written defeated
Enter the learning machine etc. of device.
In embodiments of the present invention, user, by a stroke of hand input device input target characters, is here
It is easy to describe, this stroke is referred to as the first Chinese-character stroke.Preferably, obtain the center of gravity of whole stroke, the center of gravity of stroke is set
It is set to the center of the first Chinese-character stroke, preferably to represent the position of stroke.Here, store during target characters is facility for study
Chinese character template or Chinese character model, compare writing of exercising Chinese characters for user.
In step s 102, the first Chinese-character stroke is positioned by the second Chinese-character stroke the most inputted, and obtains first
Chinese-character stroke is relative to the relative position of the second Chinese-character stroke.
In embodiments of the present invention, the second Chinese-character stroke is that inputted before the first Chinese-character stroke input presets stroke,
Can be the front unicursal in this target characters sequential write before the first Chinese-character stroke, it is also possible to before with the first Chinese-character stroke
It is separated by the stroke of two, specifically can be configured according to the structure of Chinese character, with the further accurateness improving and judging.The most
When first Chinese-character stroke is positioned by the second Chinese-character stroke of input, it is also preferable that the center of gravity of relative second Chinese-character stroke
Position, to obtain relative position.
In step s 103, obtain the first Chinese-character stroke writes vector direction.
In embodiments of the present invention, the writing vector direction and can input the first Chinese-character stroke by user of the first Chinese-character stroke
Beginning and end on hand input device calculates, it is also possible to by starting point and the center or first of the first Chinese-character stroke
Chinese-character stroke center and terminal calculate, and specifically can be configured according to user's request.
In step S104, relative position that detection obtains, write vector direction and the first and second Chinese-character strokes
Whether cross point is write with stroke in target characters and is consistent.
In embodiments of the present invention, in the relative position that detection obtains, vector direction and the first and second Chinese characters are write
Whether the cross point of stroke writes with stroke in target characters when being consistent, can sequence detection successively, it is also possible to synchronous detecting.In inspection
As long as one of which determines not write with stroke in target characters and is consistent during survey, then can determine that user writing is wrong, thus can have
Effect improves the detection efficiency of user's entering stroke.User's Chinese-character stroke to be determined write errorless or correct time then must be to acquisition
Relative position, the cross point of writing vector direction and the first and second Chinese-character strokes detects, thus improves detection knot
The correctness of fruit.
Specifically, the first Chinese-character stroke corresponding vector direction of stroke, first Chinese character in target characters can be obtained in advance
The corresponding stroke of stroke is relative to the relative position and first and second of second Chinese-character stroke corresponding stroke in target characters
Chinese-character stroke is the cross point of corresponding stroke in target characters, detects for the first Chinese-character stroke inputting user.
In step S105, when the relative position obtained, write vector direction and the friendship of the first and second Chinese-character strokes
Crunode is write with stroke in target characters when being consistent, and determines that the stroke that the first Chinese-character stroke is correct is write.
In embodiments of the present invention, the second pen for writing Chinese characters the most inputted by the first Chinese-character stroke of detection user's input
The relative position drawn, the intersection writing vector direction and the first and second Chinese-character strokes of the first Chinese-character stroke whether with mesh
In mark Chinese character, stroke is write and is consistent, it is achieved that the accurate judgement of the Chinese-character stroke correctness of input each to user, improves the Chinese
The efficiency of word writing practising.
It is further preferred that when the relative position obtained, write vector direction and the friendship of the first and second Chinese-character strokes
Crunode and stroke in target characters are write when not corresponding, and perform corresponding stroke and write guiding operation, to guide user writing.Its
In, it can be by facility for study (such as, the display screen of panel computer) display output the first Chinese character that stroke writes guiding operation
Stroke correctly write picture, it is also possible to be the correct ways of writing of voice output the first Chinese-character stroke.
Embodiment two:
What Fig. 2 showed the stroke detection method of the Chinese-character writing that the embodiment of the present invention two provides realizes flow process, in order to just
In explanation, illustrate only the part relevant to the embodiment of the present invention, details are as follows:
In step s 201, receive the first Chinese-character stroke of user's input, obtain the center of the first Chinese-character stroke.
In step S202, the first Chinese-character stroke is positioned by the second Chinese-character stroke the most inputted, and obtains first
Chinese-character stroke is relative to the relative position of the second Chinese-character stroke.
In embodiments of the present invention, the second Chinese-character stroke is that inputted before the first Chinese-character stroke input presets stroke,
Can be the front unicursal in this target characters sequential write before the first Chinese-character stroke, it is also possible to before and the first Chinese character
Stroke is separated by two or the stroke of many, specifically can be configured according to the structure of Chinese character, improves the correct of judgement with further
Degree.When the first Chinese-character stroke is positioned by the second Chinese-character stroke relatively inputted, it is also preferable that relative second Chinese character
The center of gravity of stroke positions, to obtain relative position.
In step S203, obtain the first Chinese-character stroke writes vector direction.
In embodiments of the present invention, the writing vector direction and can input the first Chinese-character stroke by user of the first Chinese-character stroke
Beginning and end on hand input device calculates, it is also possible to by starting point and the center or first of the first Chinese-character stroke
Chinese-character stroke center and terminal calculate, and specifically can be configured according to user's request.
In step S204, it is judged that whether the relative position of acquisition is positioned at the predeterminable area of the second Chinese-character stroke, is, holds
Row step S205, otherwise performs step S211.
In embodiments of the present invention, need to obtain in advance the first Chinese-character stroke in target characters corresponding stroke relative to second Chinese
The position of word stroke corresponding stroke in target characters or region, so, judging whether the relative position obtained is positioned at second
During the predeterminable area of Chinese-character stroke, can be judged by the relative position relation of corresponding stroke in the target characters that obtains.
In step S205, when the relative position obtained is positioned at the predeterminable area of the second Chinese-character stroke, determine phase para-position
The relative position putting Chinese-character stroke corresponding with target characters is identical.
In embodiments of the present invention, it is preferable that can centered by the center of gravity of the second Chinese-character stroke by this centrally disposed be
The initial point of plane rectangular coordinates, is put down each region in horizontally and vertically divided four regions by angular bisector further
It is divided into two regions, obtains eight regions, when region, relative position and first Chinese-character stroke of the first Chinese-character stroke is at mesh
When in mark Chinese character, corresponding stroke is identical relative to the position of the second Chinese-character stroke correspondence stroke or region, then can determine that relative position with
In target characters, the relative position of corresponding Chinese-character stroke is identical.It is of course also possible to further according to the precise requirements judged, will
Region centered by the center of gravity of the second Chinese-character stroke or the plane domain of hand input device are divided into more, area more
Little region, writes the stroke of user and detects more accurately.
In step S206, it is judged that acquisition write vector direction stroke the most corresponding with target characters write vector
Direction is identical.
In step S207, when obtain write vector direction stroke corresponding with target characters write vector direction phase
Meanwhile, determine write vector direction stroke corresponding with target characters to write vector direction identical.
In step S208, whether the Chinese-character stroke detecting the first and second Chinese-character strokes corresponding in target characters has friendship
Crunode.
In step S209, when pen for writing Chinese characters corresponding in target characters is decorated with cross point, it is judged that the first and second Chinese characters
Whether stroke has cross point.
In step S210, when the first and second pen for writing Chinese characters are decorated with cross point and quantity is identical, determine the first pen for writing Chinese characters
It is depicted as correct stroke to write.
In embodiments of the present invention, it is similar to the relative position judging the first Chinese-character stroke, at detection first and second Chinese
When whether the Chinese-character stroke that word stroke is corresponding in target characters has cross point, first detect the first and second Chinese-character strokes at mesh
In mark Chinese character, whether corresponding Chinese-character stroke has the situation in cross point, if had, detection number of crossovers is the most identical, quantity phase
Same then can determine that the stroke that the first Chinese-character stroke is correct is write.
In step S211, perform corresponding stroke and write guiding operation.
In embodiments of the present invention, in the relative position that detection obtains, vector direction and the first and second Chinese characters are write
During the cross point of stroke, it is consistent as long as one of which determines not write with stroke in target characters, then can determine that user writing has
By mistake, meanwhile, perform corresponding stroke and write guiding operation, to guide user correctly to write this Chinese-character stroke.Wherein, stroke book
Writing and guide operation can be to export the correct of the first Chinese-character stroke by facility for study (such as, the display screen of panel computer) display
Write picture, it is also possible to by the correct ways of writing of voice output the first Chinese-character stroke.
In embodiments of the present invention, in the relative position that detection obtains, vector direction and the first and second Chinese characters are write
Whether the cross point of stroke writes with stroke in target characters when being consistent, can sequence detection successively, it is also possible to synchronous detecting.In inspection
As long as one of which determines not write with stroke in target characters and is consistent during survey, then can determine that user writing is wrong, thus can have
Effect improves the detection efficiency of user's entering stroke.User's Chinese-character stroke to be determined write errorless or correct time then must be to acquisition
Relative position, the cross point of writing vector direction and the first and second Chinese-character strokes detects, thus improves detection knot
The correctness of fruit.
One of ordinary skill in the art will appreciate that all or part of step realizing in above-described embodiment method is permissible
Instructing relevant hardware by program to complete, described program can be stored in a computer read/write memory medium,
Described storage medium, such as ROM/RAM, disk, CD etc..
Embodiment three:
Fig. 3 shows the structure of the stroke detection device of the Chinese-character writing that the embodiment of the present invention three provides, for the ease of saying
Bright, illustrate only the part relevant to the embodiment of the present invention.
In embodiments of the present invention, the stroke detection device of Chinese-character writing includes center acquiring unit 31, position acquisition list
Unit 32, vector direction acquiring unit 33, stroke detector unit 34 and result determine unit 35, wherein:
Center acquiring unit 31, for receiving the first Chinese-character stroke of user's input, obtains the center of the first Chinese-character stroke；
Position acquisition unit 32, positions the first Chinese-character stroke for the second Chinese-character stroke relatively inputted, obtains
Take the first Chinese-character stroke relative position relative to the second Chinese-character stroke；
Vector direction acquiring unit 33, be used for acquisition the first Chinese-character stroke writes vector direction；
Stroke detector unit 34, for detecting the relative position of acquisition, writing vector direction and the first and second Chinese characters
Whether the cross point of stroke is write with stroke in target characters and is consistent；And
Result determines unit 35, for working as the relative position of acquisition, writing vector direction and the first and second pen for writing Chinese characters
The cross point drawn is write with stroke in target characters when being consistent, and determines that the stroke that the first Chinese-character stroke is correct is write.
It is further preferred that as shown in Figure 4, the stroke detection device of this Chinese-character writing can also include:
Operation execution unit 36, for working as the relative position of acquisition, writing vector direction and the first and second pen for writing Chinese characters
The cross point drawn and stroke in target characters are write when not corresponding, and perform corresponding stroke and write guiding operation.
Preferably, stroke detector unit 34 includes:
Position judgment unit 341, for judging whether the relative position obtained is positioned at the predeterminable area of the second Chinese-character stroke；
Position determination unit 342, when the relative position obtained is positioned at the predeterminable area of the second Chinese-character stroke, determines acquisition
The relative position of relative position Chinese-character stroke corresponding with target characters identical；
Vector direction judging unit 343, for judging that obtain writes vector direction pen the most corresponding with target characters
Draw to write vector direction identical；
Vector direction determines unit 344, for when the book writing vector direction stroke corresponding with target characters obtained
Write vector direction identical time, determine write vector direction stroke corresponding with target characters to write vector direction identical；
Cross detection unit 345, for the Chinese-character stroke that detection the first and second Chinese-character strokes are corresponding in target characters
Whether there is cross point；
Intersect judging unit 346, for when pen for writing Chinese characters corresponding in target characters is decorated with cross point, it is judged that first and the
Whether two Chinese-character strokes have cross point；And
Stroke is write and is determined unit 347, is used for when the first and second pen for writing Chinese characters are decorated with cross point and quantity is identical, really
The stroke that fixed first Chinese-character stroke is correct is write.
In embodiments of the present invention, each unit of the stroke detection device of this Chinese-character writing can be by corresponding hardware or software
Unit realize, each unit can be independent soft and hardware unit, it is also possible to be integrated into a soft and hardware unit, at this not in order to
Limit the present invention.The detailed description of the invention of each unit refers to the description of previous embodiment, does not repeats them here.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any amendment, equivalent and the improvement etc. made within god and principle, should be included within the scope of the present invention.
Claims (10)
1. the stroke detection method of a Chinese-character writing, it is characterised in that described method comprises the steps:
Receive the first Chinese-character stroke of user's input, obtain the center of described first Chinese-character stroke；
Described first Chinese-character stroke is positioned by the second Chinese-character stroke relatively inputted, and obtains described first Chinese-character stroke phase
Relative position to described second Chinese-character stroke；
Obtain described first Chinese-character stroke writes vector direction；
Detect described relative position, described in whether write the cross point of vector direction and described first and second Chinese-character strokes
Write with stroke in target characters and be consistent；
When described relative position, described in write vector direction and the cross point of described first and second Chinese-character strokes and target
When stroke is write and is consistent in Chinese character, determine that the stroke that described first Chinese-character stroke is correct is write.
2. the method for claim 1, it is characterised in that described method also includes:
When described relative position, described in write vector direction and the cross point of described first and second Chinese-character strokes and target
When stroke is write and do not corresponded in Chinese character, perform corresponding stroke and write guiding operation.
3. the method for claim 1, it is characterised in that detect described relative position, described in write vector direction and
Whether the cross point of described first and second Chinese-character strokes writes, with stroke in target characters, the step being consistent, including:
Judge whether described relative position is positioned at the predeterminable area of described second Chinese-character stroke；
When described relative position is positioned at the predeterminable area of described second Chinese-character stroke, determine described relative position and described target
In Chinese character, the relative position of corresponding Chinese-character stroke is identical.
4. the method as described in claim 1 or 3, it is characterised in that detect described relative position, described in write vector direction,
And whether the cross point of described first and second Chinese-character strokes write, with stroke in target characters, the step being consistent, including:
Write described in judgement vector direction whether with in described target characters corresponding stroke to write vector direction identical；
When described write vector direction with in described target characters corresponding stroke write vector direction identical time, determine described book
Write vector direction with in described target characters corresponding stroke to write vector direction identical.
5. method as claimed in claim 4, it is characterised in that detect described relative position, described in write vector and described
Whether the cross point of the first and second Chinese-character strokes writes, with stroke in target characters, the step being consistent, including:
Whether the Chinese-character stroke detecting described first and second Chinese-character strokes corresponding in described target characters has cross point；
When pen for writing Chinese characters corresponding in described target characters is decorated with cross point, it is judged that whether described first and second Chinese-character strokes have
Cross point；
When described first and second pen for writing Chinese characters are decorated with cross point and quantity is identical, determine that described first Chinese-character stroke is correct
Stroke write.
6. the stroke detection device of a Chinese-character writing, it is characterised in that described device includes:
Center acquiring unit, for receiving the first Chinese-character stroke of user's input, obtains the center of described first Chinese-character stroke；
Position acquisition unit, positions described first Chinese-character stroke for the second Chinese-character stroke relatively inputted, and obtains
The relative position of the most described second Chinese-character stroke of described first Chinese-character stroke；
Vector direction acquiring unit, writes vector direction for obtain described first Chinese-character stroke；
Stroke detector unit, be used for detecting described relative position, described in write vector direction and described first and second Chinese characters
Whether the cross point of stroke is write with stroke in target characters and is consistent；And
Result determines unit, for when described relative position, described in write vector direction and described first and second pen for writing Chinese characters
The cross point drawn is write with stroke in target characters when being consistent, and determines that the stroke that described first Chinese-character stroke is correct is write.
7. device as claimed in claim 6, it is characterised in that described device also includes:
Operation execution unit, for when described relative position, described in write vector direction and described first and second pen for writing Chinese characters
The cross point drawn and stroke in target characters are write when not corresponding, and perform corresponding stroke and write guiding operation.
8. device as claimed in claim 6, it is characterised in that described stroke detector unit includes:
Position judgment unit, for judging whether described relative position is positioned at the predeterminable area of described second Chinese-character stroke；And
Position determination unit, when described relative position is positioned at the predeterminable area of described second Chinese-character stroke, determine described relatively
Position is identical with the relative position of corresponding Chinese-character stroke in described target characters.
9. the device as described in claim 6 or 8, it is characterised in that described stroke detector unit includes:
Vector direction judging unit, write described in judge vector direction whether with the book of corresponding stroke in described target characters
Write vector direction identical；And
Vector direction determines unit, for when described in write vector direction with in described target characters corresponding stroke write vector
When direction is identical, determine described in write vector direction with in described target characters corresponding stroke to write vector direction identical.
10. device as claimed in claim 9, it is characterised in that described stroke detector unit includes:
Cross detection unit, for detecting the Chinese-character stroke that described first and second Chinese-character strokes are corresponding in described target characters
Whether there is cross point；
Intersection judging unit, for when pen for writing Chinese characters corresponding in described target characters is decorated with cross point, it is judged that described first He
Whether the second Chinese-character stroke has cross point；And
Stroke is write and is determined unit, for when described first and second pen for writing Chinese characters are decorated with cross point and quantity is identical, determines institute
State the stroke that the first Chinese-character stroke is correct to write.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117275013A (en) * | 2023-08-25 | 2023-12-22 | 安徽以观文化科技有限公司 | Chinese character stroke writing identification method on mobile terminal |
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| CN103606305A (en) * | 2013-11-29 | 2014-02-26 | 西安辉盛科技发展有限责任公司 | Chinese character writing learning system |
| CN103810506A (en) * | 2014-01-03 | 2014-05-21 | 南京师范大学 | Method for identifying strokes of handwritten Chinese characters |
| CN104182766A (en) * | 2014-08-29 | 2014-12-03 | 南京师范大学 | Method for judging correctness of position relation of strokes of handwritten Chinese character based on template matching |
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| CN117275013A (en) * | 2023-08-25 | 2023-12-22 | 安徽以观文化科技有限公司 | Chinese character stroke writing identification method on mobile terminal |
| CN117275013B (en) * | 2023-08-25 | 2024-05-14 | 安徽以观文化科技有限公司 | Chinese character stroke writing identification method on mobile terminal |
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