CN107622710A - Digitize writing practising method and system - Google Patents
Digitize writing practising method and system Download PDFInfo
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- CN107622710A CN107622710A CN201710762777.5A CN201710762777A CN107622710A CN 107622710 A CN107622710 A CN 107622710A CN 201710762777 A CN201710762777 A CN 201710762777A CN 107622710 A CN107622710 A CN 107622710A
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Abstract
The invention discloses one kind digitlization writing practising method and system, method to comprise the following steps：S1. font library is built, the font library includes font, stroke and the order of strokes observed in calligraphy of word；S2. word is extracted from the font library and is shown on display interface；S3. write by stroke, obtain writing data of the user to the stroke, and scored according to the standard stroke of the word；Or further, when the scoring is less than predetermined threshold value, repeat the writing of the stroke.With can not only be guided to the order of writing strokes of Chinese character, and the writing of user can also be assessed, targetedly guide user to repeat the stroke that can not be finished writing, the advantages that so as to quickly help user to finish writing Chinese character.
Description
Technical field
The present invention relates to digitlization writing field, more particularly to a kind of digitlization writing practising method and system.
Background technology
Chinese character has a long history, and is the soul of Chinese civilization.But in today of electronic product high development, the Chinese
Word also receives huge impact, due in daily life and work by electronic equipment carrying out the input of word, it is necessary to
It is fewer and fewer with the chance of handwritten Chinese character, so, increasing Chinese can not write out Chinese character beautiful on the other hand.
Existing Chinese-character writing exercise system, such as Application No. 200710125374.6《A kind of writing type electronic device
Carry out the bearing calibration of character stroke》, Application No.：201210144901.9《A kind of writing of word on an electronic device is practiced
Learning method and system》Have the disadvantage that：The guide of order of writing strokes can only be carried out, it is impossible to carry out the analysis of writing quality with
Judge, so as to which user can not be guided targetedly to carry out emphasis exercise to important stroke；The writing to user that can not be integrated is entered
The comprehensive evaluation of row.Therefore, it is necessary to further studied.
The content of the invention
The technical problem to be solved in the present invention is that：For technical problem existing for prior art, the present invention provides one
Kind can not only be guided to the order of writing strokes of Chinese character, and the writing of user can also be assessed, and targetedly guiding is used
Family is repeated to the stroke that can not be finished writing, so as to quickly help user finish writing Chinese character digitlization writing practising method and
System.
In order to solve the above technical problems, technical scheme proposed by the present invention is：One kind digitlization writing practising method, it is special
Sign is, comprises the following steps：
S1. font library is built, the font library includes font, stroke and the order of strokes observed in calligraphy of word；
S2. word is extracted from the font library and is shown on display interface；
S3. write by stroke, obtain writing data of the user to the stroke, and enter according to the standard stroke of the word
Row scoring；Or further, when the scoring is less than predetermined threshold value, repeat the writing of the stroke.
As a further improvement on the present invention, word is extracted from the font library by web browser and aobvious
Show and shown on interface；It is included in highlight and shows the word, and/or the literary glyph is shown in writing area.
As a further improvement on the present invention, the correct writing process of display word is also included in the step S2, including：
According to the order of strokes observed in calligraphy, the correct writing process of the word whole stroke is shown；Or the rules for writing according to stroke, show a certain pen
The correct writing process drawn.
As a further improvement on the present invention, data are write described in step S3 to be included first stroke of a Chinese character coordinate, receives a coordinate and pen
Mark；
The specific steps that the standard stroke according to the word is scored the writing data include：
Key point similarity：According to the crucial point coordinates crucial point coordinates meter corresponding with the standard stroke of the writing data
Calculate key point similarity；
A row similarity：According to the cosine similarity of the person's handwriting and standard stroke calculating between the two, it is determined that a row phase
Like degree；
Registration：According to the registration of the pixel of the person's handwriting and standard stroke pixel calculating between the two；
Form of a stroke or a combination of strokes similarity：Both are calculated according to the thickness situation of change of the person's handwriting and the thick line situation of change of the standard stroke
Between form of a stroke or a combination of strokes similarity；
One or several in the key point similarity, a row similarity, registration and form of a stroke or a combination of strokes similarity is weighted
Calculate the stroke scoring of the writing data.
As a further improvement on the present invention, user can be freely from the key point similarity, a row similarity, registration
With one or several evaluation indexes as similarity of selection in form of a stroke or a combination of strokes similarity.
As a further improvement on the present invention, in addition to step S4, scored according to the stroke of each stroke, weighted calculation institute
The writing score of word is stated, and shows the writing score.
As a further improvement on the present invention, weighted value is set respectively for different types of stroke in advance；Write calculating
During score, for same stroke, the number of repetition of its weighted value and the stroke is inversely proportional, and number of repetition is more, and weighted value is smaller.
One kind digitlization writing practising system, including
Character base module：For building font library, the font library includes font, stroke and the order of strokes observed in calligraphy of word；
Display module：For extracting word from the font library and being shown on display interface；
Write module：Write by stroke, obtain writing data of the user to the stroke；Or further, when scoring mould
When the scoring of block is less than predetermined threshold value, the writing of the stroke is repeated；
Grading module：For being scored according to the standard stroke of the word.
As a further improvement on the present invention, the display module is additionally operable to show the correct writing process of word, including：
According to the order of strokes observed in calligraphy, the correct writing process of the word whole stroke is shown；Or the rules for writing according to stroke, show a certain pen
The correct writing process drawn；Data are write described in the writing module to be included first stroke of a Chinese character coordinate, receives a coordinate and person's handwriting.
As a further improvement on the present invention, institute's scoring module is specifically used for calculating：
Key point similarity：According to the crucial point coordinates crucial point coordinates meter corresponding with the standard stroke of the writing data
Calculate key point similarity；
A row similarity：According to the cosine similarity of the person's handwriting and standard stroke calculating between the two, it is determined that a row phase
Like degree；
Registration：According to the registration of the pixel of the person's handwriting and standard stroke pixel calculating between the two；
Form of a stroke or a combination of strokes similarity：Both are calculated according to the thickness situation of change of the person's handwriting and the thick line situation of change of the standard stroke
Between form of a stroke or a combination of strokes similarity；
One or several in the key point similarity, a row similarity, registration and form of a stroke or a combination of strokes similarity is weighted
Calculate the stroke scoring of the writing data.
As a further improvement on the present invention, it is described writing module be additionally operable to user can be freely similar from the key point
One or several evaluation indexes as similarity are selected in degree, a row similarity, registration and form of a stroke or a combination of strokes similarity.
As a further improvement on the present invention, institute's scoring module is additionally operable to be scored according to the stroke of each stroke, weighting
The writing score of the word is calculated, and shows the writing score；
When calculating writing score, for same stroke, the number of repetition of its weighted value and the stroke is inversely proportional, and number of repetition is got over
More, weighted value is smaller；
For the stroke of different types, weighted value is set respectively in advance.
Compared with prior art, the advantage of the invention is that：
1st, the present invention includes the ways of writing such as Free Writing and imitation, and user can be flexibly according to the skilled journey of writing to Chinese character
Degree, selects different ways of writing to be write.
2nd, the present invention can be assessed the word of writing, judged according to different ways of writing, unskilled to writing
Stroke, exercise can be repeated.
3rd, the present invention provides polytype writing similarity assessment index, can flexible organization difference index to the book of user
Write into capable evaluation.
Brief description of the drawings
Fig. 1 is specific embodiment of the invention schematic flow sheet.
Fig. 2 is that the specific embodiment of the invention carries out writing schematic flow sheet to some word.
Fig. 3 is specific embodiment of the invention interface display schematic diagram.
Fig. 4 is specific embodiment of the invention system structure diagram.
Embodiment
Below in conjunction with Figure of description and specific preferred embodiment, the invention will be further described, but not therefore and
Limit the scope of the invention.
As depicted in figs. 1 and 2, the digitlization writing practising method of the present embodiment, comprises the following steps：S1. font is built
Library, the font library include font, stroke and the order of strokes observed in calligraphy of word；S2. word is extracted from the font library
And shown on display interface；S3. write by stroke, obtain writing data of the user to the stroke, and according to the text
The standard stroke of word is scored；Or further, when the scoring is less than predetermined threshold value, repeat the writing of the stroke.
In the present embodiment, there are two kinds of write modes, a kind of write mode is each stroke of user writing, and stroke is scored,
When writing the word, the word is scored；Another write mode is each stroke of user writing, and stroke is commented
Point, also, when the scoring is less than predetermined threshold value, guiding user writes the stroke again.Only each stroke of user writing
Scoring when being all higher than the threshold value of the stroke, the writing to the word could be completed, the word is scored.
In the present embodiment, word is extracted from the font library by web browser and is shown on display interface
Show；It is included in highlight and shows the word, and/or the literary glyph is shown in writing area.Pass through web browser, tool
The body such as H5 pages show word, and writing area.Storage, the amount of calculation at electronic equipment end can be reduced, realizes electronic equipment
The lightweight at end.
In the present embodiment, as shown in figure 3, display interface includes less highlight, for prompting what is currently write
Word；With larger writing area, write for confession user.Writing area includes writing grid, sphere of movements for the elephants as shown in Figure 3
Lattice, or " rice " word lattice etc. help the form of user writing.In writing area, the profile for treating writing words can also be shown.Such as
In Fig. 3, shown by way of shade and wait " forever " glyph that writes.Write by facilitating beginner in a manner of copying.
In the present embodiment, the correct writing process of display word is also included in the step S2, including：According to the order of strokes observed in calligraphy,
Show the correct writing process of the word whole stroke；Or the rules for writing according to stroke, show the correct book of a certain stroke
Write process.Show that the writing process of word or the writing process of stroke can be shown in highlight, can also be shown in writing area.
To showing in animated way for the correct writing process of stroke, such as second cross break hook in " forever " word, with the side of animation
Formula shows stroke from the first stroke of a Chinese character, first horizontal, rear folding, rear perpendicular, hook again writing process, and to the correct writing process of word then with animation
Mode, according to the order of strokes observed in calligraphy of each stroke, show the writing process of each stroke, such as " forever " word one by one, show in order point, cross break hook,
It is horizontal to skim, skim, pressing down five.
In the present embodiment, data are write described in step S3 to be included first stroke of a Chinese character coordinate, receives a coordinate and person's handwriting；The basis
The specific steps that the standard stroke of the word is scored the writing data include：Key point similarity：According to described
The crucial point coordinates crucial point coordinates corresponding with the standard stroke for writing data calculates key point similarity；Row pen is similar
Degree：According to the cosine similarity of the person's handwriting and standard stroke calculating between the two, it is determined that a row similarity；Registration：
According to the registration of the pixel of the person's handwriting and standard stroke pixel calculating between the two；Form of a stroke or a combination of strokes similarity：According to
The thickness situation of change of the person's handwriting calculates form of a stroke or a combination of strokes similarity between the two with the thick line situation of change of the standard stroke；Root
Institute is weighted according to one or several in the key point similarity, a row similarity, registration and form of a stroke or a combination of strokes similarity
State the stroke scoring of writing data.
In the present embodiment, for each stroke of user writing, there is a corresponding first stroke of a Chinese character coordinate, receive a coordinate
And person's handwriting.By person's handwriting, crucial break coordinate can also be determined, such as "fold" point in cross break hook in " forever " word and " hook " point
Coordinate.In the present embodiment, first stroke of a Chinese character point, receipts pen point and break are key point.Equally, equally can be true in standard stroke
The coordinate that standard stroke corresponds to key point is determined, such as the key of each stroke of " forever " word of standard shown in Fig. 3 in writing area
The coordinate of point.The coordinate of the key point of the stroke of user writing is designated as writing coordinate, and the coordinate of standard stroke is designated as standard coordinate.
Key point similarity can be measured by using writing the distance between coordinate and standard coordinate, apart from smaller, similarity is bigger, away from
From bigger, similarity is smaller.In order to reduce amount of calculation, simplifiedly, using standard coordinate as the center of circle, done using default value as radius
Circle, standard coordinate circle is designated as, to write whether coordinate falls in corresponding standard coordinate circle region, is sat to judge to write coordinate with standard
Similarity between mark.Fall into, illustrate similar, otherwise explanation is dissimilar.Summation meter is weighted to the similarity of each key point
Calculate, you can the key point similarity of stroke is calculated.
In the present embodiment, the written handwriting of user and standard stroke are used into vector representation, and calculate two vectors it
Between cosine similarity, the row similarity of user writing person's handwriting is characterized with the cosine similarity.In the present embodiment, user
Written handwriting and standard stroke are characterized with pixel, and in Chinese character, stroke has certain thickness, length etc. different special
Sign, and the person's handwriting that family is write similarly there is feature, the written handwritings of user such as thickness, length may fall in standard stroke
Pixel within, it is also possible to beyond the pixel of standard stroke.Learning to write by tracing over characters printed in red in practising such as traditional calligraphy, standard stroke are to provide
Stroke outlines, user write, and the person's handwriting such as user writing is completely consistent with the profile of standard stroke, that is, is fully filled with this
Profile, and without departing from the scope of profile, then illustrate user writing and standard stroke similarity it is higher, if user handwriting
The profile of standard stroke is not filled up either beyond profile, then illustrates the written handwriting of user and the similarity of standard stroke
It is not high.Therefore, can be with the registration of user writing person's handwriting and the pixel of standard stroke come the written handwriting of measure user, weight
The pixel of conjunction is more, and both registrations are higher, and otherwise registration is lower.In Chinese character, the thickness of a stroke is also to become
Change, the 4th " slash " in such as " forever " word, it is thicker at the first stroke of a Chinese character, it is such as 10 pixels, is then tapered, is 5 pixels, skims
Point is most thin, and as being 1 pixel, it is relatively light that thick place firmly needs heavier, thin place to exert oneself in writing, and the change of its power is abided by
Follow change procedure of 10 pixels to 5 pixels to 1 pixel.In the writing process of user, it should also follow this and change
Journey is such as 8 pixels to 4 pixels to 1 pixel, although the stroke weight of user writing and standard stroke are completely the same,
Its thickness change procedure and standard stroke it is consistent.Therefore, the evaluation of form of a stroke or a combination of strokes similarity can be thus carried out, uniformity is higher, then
Form of a stroke or a combination of strokes similarity is higher, and otherwise form of a stroke or a combination of strokes similarity is lower.Therefore, feelings are changed by assessing the thickness between person's handwriting and standard stroke
Whether condition is consistent, to characterize the no writing power requirement for meeting stroke in the writing process of user.Certainly, it is necessary to illustrate,
For with mouse etc. without the mode for characterizing writing power come the person's handwriting write, can be commented without the calculating of form of a stroke or a combination of strokes similarity
Estimate, and can embody user writing power for touch-screen, pressure screen etc. or reflect the person's handwriting write of mode of writing both thick and thin,
Form of a stroke or a combination of strokes similarity assessment can then be carried out.
In the present embodiment, can be as needed, select key point similarity, a row similarity, registration similar with the form of a stroke or a combination of strokes
One or several in the degree stroke scoring that the writing data are weighted；Otherwise, judge that writing data are incorrect, need
User is wanted to write again.Also, as needed, the stroke can be being shown by way of animation just in writing area or highlight
True ways of writing, writing guiding is provided the user with more.It is being determined that key point similarity, row pen are similar by calculating
After the value of degree, registration and form of a stroke or a combination of strokes similarity, then by way of weighting, you can writing of the user to each stroke is calculated
Score.When the writing score of some stroke is less than default threshold value, then illustrate that user writing is correct, into the book of next stroke
Write, otherwise, prompt user to be write again to the stroke.
In the present embodiment, for different strokes, its writing difficulty is different, therefore, distinguishes for different strokes
Weighted value is set, and the larger stroke weighted value of difficulty is higher, and the less stroke weighted value of difficulty is relatively low.It is common such as " forever " word
There are 5, wherein, point is relatively most simple, and cross break hook is relative to be most difficult to, therefore, can be to five point, cross break hook, horizontal slash, slash, right-falling stroke difference
Set weighted value be：0.1、0.4、0.2、0.15、0.15.
In the present embodiment, when calculating writing score, for same stroke, the number of repetition of its weighted value and the stroke
It is inversely proportional, number of repetition is more, and weighted value is smaller.User completes some word of writing, may be simultaneously for some stroke therein
It can not must once meet the requirements, may be write repeatedly with regard to writing.Therefore, the weighted value for some stroke is transformable weighting
Value, before being written on of user reaches requirement, the number of writing is more, and its weighted value is smaller.As described previously for the of " forever " word
Two " cross break hooks ", if the writing of user once meets the requirements, then the weighted value of the stroke is initial value 0.4, if
User writing is twice, then the weighted value of the stroke is 0.4-0.04=0.36, can be so that the rest may be inferred, according to a=A-（n-1）p
Formula calculate weighted value, wherein a is the final weighted value of the stroke, A is the initial weight value of the stroke, and such as 0.4, n is
The number that the stroke repeats, such as 2 times are write, p is decrement step size, such as 0.04.Certain each parameter value can be set as needed,
Herein be only an example, also, weighted value can not be less than zero, i.e., in above formula, if be repeated 11 times and more times when, should
The weighted value of stroke is all 0.In the present embodiment, scored according to the stroke of each stroke, word writes described in weighted calculation
Point, and show the writing score.Scored in the stroke that the weighted value of each stroke and each stroke is determined, you can weighted calculation obtains
Writing score to user to the word, evaluated with the quality for the whole word write to user.
By the method for the present embodiment, not only can be very good to guide user to carry out writing Chinese characters according to correct method, and
And can also be to user each stroke of writing, and word carries out evaluation marking, and guiding user is targetedly practised, to carry
The proficiency of height writing.
As shown in figure 4, the digitlization writing practising system of the present embodiment, including character base module：For building font file
Storehouse, the font library include font, stroke and the order of strokes observed in calligraphy of word；Display module：For being carried from the font library
Take word and shown on display interface；Write module：Write by stroke, obtain writing data of the user to the stroke；
Or further, when the scoring of grading module is less than predetermined threshold value, repeat the writing of the stroke；Grading module：For root
Scored according to the standard stroke of the word.
In the present embodiment, the display module is additionally operable to show the correct writing process of word, including：According to the order of strokes observed in calligraphy,
Show the correct writing process of the word whole stroke；Or the rules for writing according to stroke, show the correct book of a certain stroke
Write process；Data are write described in the writing module to be included first stroke of a Chinese character coordinate, receives a coordinate and person's handwriting.Grading module is specifically used for
Calculate：Key point similarity：According to the crucial point coordinates crucial point coordinates corresponding with the standard stroke of the writing data
Calculate key point similarity；A row similarity：It is similar according to cosine of the person's handwriting with standard stroke calculating between the two
Degree, it is determined that a row similarity；Registration：Calculated between the two according to the pixel of the person's handwriting and the standard stroke pixel
Registration；Form of a stroke or a combination of strokes similarity：According to the thickness situation of change of the person's handwriting and the thick line situation of change meter of the standard stroke
Calculate form of a stroke or a combination of strokes similarity between the two；According in the key point similarity, a row similarity, registration and form of a stroke or a combination of strokes similarity
The one or several stroke scoring that the writing data are weighted.
In the present embodiment, institute's scoring module is additionally operable to be scored according to the stroke of each stroke, text described in weighted calculation
The writing score of word, and show the writing score；When calculating writing score, for same stroke, its weighted value and the pen
The number of repetition drawn is inversely proportional, and number of repetition is more, and weighted value is smaller；For the stroke of different types, set respectively in advance
Weighted value.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any formal limitation to the present invention.It is although of the invention
It is disclosed above with preferred embodiment, but it is not limited to the present invention.Therefore, it is every without departing from technical solution of the present invention
Content, according to the technology of the present invention essence to any simple modifications, equivalents, and modifications made for any of the above embodiments, it all should fall
In the range of technical solution of the present invention protection.
Claims (10)
1. one kind digitlization writing practising method, it is characterised in that comprise the following steps：
S1. font library is built, the font library includes font, stroke and the order of strokes observed in calligraphy of word；
S2. word is extracted from the font library and is shown on display interface；
S3. write by stroke, obtain writing data of the user to the stroke, and enter according to the standard stroke of the word
Row scoring；Or further, when the scoring is less than predetermined threshold value, repeat the writing of the stroke.
2. digitlization writing practising method according to claim 1, it is characterised in that：By web browser from the word
Word is extracted in shape files storehouse and is shown on display interface；It is included in highlight and shows the word, and/or shows in writing area
Show the literary glyph.
3. digitlization writing practising method according to claim 1, it is characterised in that：Also include display in the step S2
The correct writing process of word, including：According to the order of strokes observed in calligraphy, the correct writing process of the word whole stroke is shown；Or according to pen
The rules for writing drawn, show the correct writing process of a certain stroke.
4. digitlization writing practising method according to claim 1, it is characterised in that：Packet is write described in step S3
Include first stroke of a Chinese character coordinate, receive a coordinate and person's handwriting；
The specific steps that the standard stroke according to the word is scored the writing data include：
Key point similarity：According to the crucial point coordinates crucial point coordinates meter corresponding with the standard stroke of the writing data
Calculate key point similarity；
A row similarity：According to the cosine similarity of the person's handwriting and standard stroke calculating between the two, it is determined that a row phase
Like degree；
Registration：According to the registration of the pixel of the person's handwriting and standard stroke pixel calculating between the two；
Form of a stroke or a combination of strokes similarity：Both are calculated according to the thickness situation of change of the person's handwriting and the thick line situation of change of the standard stroke
Between form of a stroke or a combination of strokes similarity；
One or several in the key point similarity, a row similarity, registration and form of a stroke or a combination of strokes similarity is weighted
Calculate the stroke scoring of the writing data.
5. digitlization writing practising method according to claim 4, it is characterised in that：Also include step S4, according to each
The stroke scoring of stroke, the writing score of word described in weighted calculation, and show the writing score.
6. digitlization writing practising method according to claim 5, it is characterised in that：It is in advance different types of stroke point
Weighted value is not set；When calculating writing score, for same stroke, the number of repetition of its weighted value and the stroke is inversely proportional,
Number of repetition is more, and weighted value is smaller.
7. one kind digitlization writing practising system, it is characterised in that：Including
Character base module：For building font library, the font library includes font, stroke and the order of strokes observed in calligraphy of word；
Display module：For extracting word from the font library and being shown on display interface；
Write module：Write by stroke, obtain writing data of the user to the stroke；Or further, when scoring mould
When the scoring of block is less than predetermined threshold value, the writing of the stroke is repeated；
Grading module：For being scored according to the standard stroke of the word.
8. digitlization writing practising system according to claim 7, it is characterised in that：The display module is additionally operable to show
The correct writing process of word, including：According to the order of strokes observed in calligraphy, the correct writing process of the word whole stroke is shown；Or according to pen
The rules for writing drawn, show the correct writing process of a certain stroke；Data are write described in the writing module to sit including the first stroke of a Chinese character
Mark, receive a coordinate and person's handwriting.
9. digitlization writing practising system according to claim 8, it is characterised in that：Institute's scoring module is specifically used for meter
Calculate：
Key point similarity：According to the crucial point coordinates crucial point coordinates meter corresponding with the standard stroke of the writing data
Calculate key point similarity；
A row similarity：According to the cosine similarity of the person's handwriting and standard stroke calculating between the two, it is determined that a row phase
Like degree；
Registration：According to the registration of the pixel of the person's handwriting and standard stroke pixel calculating between the two；
Form of a stroke or a combination of strokes similarity：Both are calculated according to the thickness situation of change of the person's handwriting and the thick line situation of change of the standard stroke
Between form of a stroke or a combination of strokes similarity；
One or several in the key point similarity, a row similarity, registration and form of a stroke or a combination of strokes similarity is weighted
Calculate the stroke scoring of the writing data.
10. digitlization writing practising system according to claim 9, it is characterised in that：Institute's scoring module is additionally operable to root
Scored according to the stroke of each stroke, the writing score of word described in weighted calculation, and show the writing score；
When calculating writing score, for same stroke, the number of repetition of its weighted value and the stroke is inversely proportional, and number of repetition is got over
More, weighted value is smaller；
For the stroke of different types, weighted value is set respectively in advance.
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| CN110503101A (en) * | 2019-08-23 | 2019-11-26 | 北大方正集团有限公司 | Font evaluation method, device, equipment and computer readable storage medium |
| CN110544410A (en) * | 2019-07-15 | 2019-12-06 | 山东第一医科大学(山东省医学科学院) | handwriting capability quantitative evaluation system and method |
| CN111986254A (en) * | 2020-08-21 | 2020-11-24 | 四川大学华西医院 | Target area contour analysis method and device, storage medium and electronic equipment |
| CN112308745A (en) * | 2020-02-28 | 2021-02-02 | 北京字节跳动网络技术有限公司 | Method and apparatus for generating information |
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| CN113627408A (en) * | 2021-10-13 | 2021-11-09 | 北京易言科技有限公司 | Display method of character writing, display and training method and device of character writing |
| CN114093220A (en) * | 2020-05-07 | 2022-02-25 | 天津洪恩完美未来教育科技有限公司 | Writing learning implementation method and device, storage medium and computing equipment |
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