CN1082732A - Chinese characters in computer is input and recognition methods dynamically - Google Patents

Abstract

The present invention is dynamically input and recognition methods of a kind of Chinese characters in computer, belongs to Chinese characters in computer input technology field.The present invention adopts a computing machine to hold the screen cursor control device as its input equipment, in hand-written mode computing machine imported in real time in the Chinese character individual character, use a computer programming system, by finishing the handwritten stroke identification, single character code, the individual character search procedure realizes the input of Chinese character individual character.The present invention can use people at daily customary way---and handwriting mode is to computer input of Chinese characters, so the user need not learn any character stroke analysis and coded system.The inventive method provides simple and reliable approach for realizing that Chinese characters in computer is dynamically imported with identification.

Description

Chinese characters in computer is input and recognition methods dynamically

The present invention is dynamically input and recognition methods of a kind of Chinese characters in computer, belongs to Chinese characters in computer input technology field.The present invention has adopted the state-of-the-art technology of computing machine hand-written script identification.With the handwriting mode that people are familiar with, computing machine imported in the Chinese character individual character.Hand-written individual character font will be recognized identification by a computer programming system.The new method of this Chinese character input has avoided keyboard and input method to all inconvenience that the user brings, and is a kind of directly quick, simple Chinese computer input method.

Chinese characters in computer is input and recognition methods dynamically, is a new technology in Chinese characters in computer input technology field.This technology adopts advanced computing machine hand-written script recognition technology, makes people cast aside keyboard, gets back to " pen " and " paper " comes up.The operation of computing machine can become simple and interesting like this.

The Chinese character system is owing to is made up of the Chinese character of a large amount of numbers, and the form of a stroke or a combination of strokes of individual character and stroke constitute complicated various, pronounce but tool repeated greatly, so its computer input method is the important topic that has practical significance always.The Chinese characters in computer input method, mainly feature and the employed input equipment by its individual character of importing decides.According to the feature of input individual character, existing Chinese computer input method can be divided into three major types.One class is the input method that is based upon on the pronunciation character basis of Chinese character; Another kind of is the input method that is based upon on the writing feature basis of Chinese character.The 3rd class can be described as the combination of top two kinds of methods.

The pronunciation character input method of Chinese character is that the difference of saying time pronunciation with individual character is distinguished different Chinese characters.These class methods use keyboard as input equipment.During operation the phonetic symbol of individual character is imported in order.For example " Lee " word pronounces to be LI, and tone is last sound promptly three, just utilizes keyboard key button input L, I, 3.At this moment, the computing machine internal program is by searching in predetermined dictionary, and providing unisonance is same code word " lining ", " Lee ", " reason ", " gift " etc.The operator selects set individual character then in these phonetically similar words.Adopt the computer programming system of this input method, have Chinese character word processor " Chinese Wordstar " to reach " popular literature and art " or the like.When adopting this input method, most of software systems adopt " phonetic " scheme of China's Mainland, are the individual character phonetic notation, for example above-mentioned " Chinese Wordstar " and " popular literature and art " etc.Some software then adopts Taiwan " phonetic symbol " in addition.The example of this respect has " new heavenly steed " etc.

In use there are two major defects in the pronunciation character input method of Chinese character.The one, the operator can not use the phonetic notation method of Chinese character usually well.The people in different places does not often grasp the standard of each character and notes owing to be accustomed to using local dialect, and study gets up also to be not easy.The 2nd, owing to have a large amount of phonetically similar words in the Chinese character system, this method has caused a large amount of repeated code words.The input of such individual character will and select these two steps to form in phonetically similar word by its phonetic of input.Input operation that this is just complicated widely, and reduced input speed.

The writing feature input method of Chinese character is to analyze the stroke feature of character, promptly forms the elementary cell stroke of individual character font, radical etc.It is regarded each character by elementary cell as forms by certain feature, and provides the method that a whole set of analyzes this feature.On the basis of individual character being advanced the stroke structure analysis, these class methods have been predesignated the computing machine input mode or the coding method of a whole set of individual character.According to different concrete grammars, the coding work of individual character or by the computer operator, or finish by machine internal program system.These class methods still mainly adopt keyboard as input equipment.It with different key buttons corresponding to different radicals, basic stroke, compound stroke etc.By button the stroke information input of character will be calculated machine.Indivedual inventive methods are also arranged, adopt clipboard and lip pencil thing, utilize handwriting mode input individual character as input equipment.

About by the method that writing feature is encoded to Chinese character and computing machine is imported, have more invention.Representational have " the Five-stroke Method method " method, the method that the huge lattice of the U.S. are introduced in its CN1045307A patented invention, and the method for the CN85102853A patented invention of Jin Yiping.

" the Five-stroke Method " method of Wang Yongmin uses keyboard as input equipment.Its coding method is divided into five kinds with Chinese-character stroke by form of a stroke or a combination of strokes characteristics, and thinks that the elementary cell of forming character is various radical.For carrying out encode Chinese characters for computer, the method has defined 130 kinds of basic element of characters.They adhere to separately according to initial stroke is five different radical districts.The radical in each district is divided into five different positions again.Respectively there is the keyboard key button of its corresponding code and appointment 25 radical positions of Xing Chenging like this.The four-digit number coding of individual character by its first, two, three, last radical code is formed.Make in this way input computing machine after the operator will encode individual character one by one.People need learn single-character splitting is become the analytical approach of basic element of character, learn off the code of different radicals, also will be familiar with the corresponding relation of various radicals and keyboard key button.

Horizontal stroke has been predesignated in the coding method of huge lattice, and is perpendicular, casts aside three kinds of different basic strokes.To each man, it analyzes its design feature, i.e. basic stroke, first character root, surplus radical and appearance order thereof.Its character code is the multi-element code of different basic stroke appearance order and occurrence number in the generation list word.The same code word that this method causes is a lot of, needs an extended code toward contact, comes to determine uniquely a Chinese character.The computer input method of huge lattice mainly adopts keyboard as input equipment.It with the keyboard key button corresponding to different basic strokes, compound stroke, radical etc.In addition, this method also can adopt " writing the filling dish " as input media.Writing the filling dish is a kind of plane device of having equipped a large amount of sensing elements.When the operator drew different basic strokes on its plane, it produced corresponding different input signal by the triggering of response to sensing element.The method of doting on lattice when operation, operator or directly will import computing machine behind the single character code, or with the basic stroke of individual character.First character root, surplus radical etc. are pressed Chinese-character writing rule ordering input computing machine, are helped individual character is encoded by the machine internal program, and the operator checks approval to coding then.In fact the method for huge lattice is still by the operator the individual character input of encoding, and because the employing multi-element code, and many with code word, the input process of this method is more loaded down with trivial details.

The invention of the real-time input method of CN85102853A handwritten Chinese character of Jin Yiping has defined the different stroke code of three covers.Each individual character comes corresponding by prefix stroke code and two codings of ISN.Finish before the final coding, machine internal program system will carry out twice the change sign indicating number to the prototype stroke code of individual character.When searching individual character, to find out the input individual character place page with the prefix coee index earlier, and then in this page, find out individual character according to ISN.Single character code in this model machine and to look into the process of word just quite complicated.The input equipment that Jin Yiping uses is a kind of matrix letter disk and lip pencil thing of special use.The matrix letter disk is by form alternate with tape conductor of dentation conductor of mutually insulated, and the lip pencil thing is made of a conductive rubber.These need the special input equipment of making and being equipped with, and have also limited the use of this method.

Most of Chinese character pattern input method up to now adopts keyboard as input equipment owing to be still, so still be a kind of indirect, is the bigger input method of difficulty for the common user of computing machine.People at first must learn off the stroke unit of forming character, i.e. radical, and basic stroke, the definition of compound stroke etc., the stroke method and the coded system of GPRS individual character also need to be familiar with the corresponding relation of stroke unit and keyboard key button simultaneously.The situation here is different fully with the keyboard input with English word.English word by 26 spell modes of forming of letter, be people's routine work and live in the mode everyday used.Therefore it is not only directly but also simple.And generally, various men's stroke encoding method finds it difficult to learn and but easily forgets.The method of other employing handwriting mode input Chinese character often but needs to be equipped with special-purpose input equipment.The user will carry out extra fund input.In addition, change always between common apparatus such as keyboard and Chinese character input specialized equipment, it is also very inconvenient to operate.

Purpose of the present invention is a kind of new Chinese computer input method of development, and the mode that this method can be accustomed in daily life with people promptly adopts hand-written mode to computer input of Chinese characters.In the process of writing, can see the individual character every stroke, on screen, show fully at last, as writing on paper with pen at ordinary times.The user need not learn any character stroke analytical approach or coded system, and the coding of individual character will be finished by machine internal program system fully.

Another object of the present invention is a kind of new Chinese computer input method of development, and the implementation of this method does not need to add any Special Equipment.Different with other hand-written inputting methods, the present invention only need utilize certain to be commonly used at present, has the computer entry device of general-use, just can quickly and easily computing machine be imported in individual character.

The present invention also has a purpose simultaneously, promptly develops a kind of new Chinese character single character code method, and this method directly considers to form the elementary cell-stroke of character.It need not specifically defined any other type the basic constituent element of individual character, or stipulate any individual character structure characteristic analysis method.Every meeting just automatically can use this method to be single character code by the people of fundamental norms writing Chinese characters.This is a kind of simple, intuitive, but accurately complete coding method.

The present invention has utilized and has popularized advanced technology and the device that uses on the computing machine in recent years, for example carries out computer graphics etc. with Genius mouse as input equipment.This class technology and device have brought the facility of computer real-time screen mapping.Simultaneously, the present invention has also adopted computing machine pen advanced in the world today to write input technique.Use this advanced technology, the operator writes word and the symbol that will import with " pen ".Hand-written stroke will be by computing machine by arrangement, processing, and a series of processes are confirmed in contrast, carry out the standardization identification.Chinese character is owing to have stroke trend and cut apart clearly, and various strokes can be regarded the characteristics that the straight line by different angles constitutes again as, and the identification of its handwritten stroke is very different with English alphabet.Compare the easier implementation of the identification of man's handwritten stroke with the English alphabet that mainly constitutes by curve.Therefore, being based upon Chinese character for computer handwriting input and identification on the stroke identification basis, is practicable.

Chinese characters in computer of the present invention is input and recognition methods dynamically, is a kind of Chinese-character writing characteristic typing method.Its feature is to have broken away from keyboard, and user's word that writes with a pen as at ordinary times with a computer input unit of holding, " is write " word on a plane.In the process of writing, the individual character stroke information has just immediately been imported computing machine.The handwritten stroke information of input will be discerned authentication process by a computer programming system.Then, machine internal program system will carry out encoding process to individual character on the basis of recognizing individual character composition stroke.Accompanying drawing one has provided the main process of the computer dynamic input that constitutes the man and recognition methods, i.e. the handwriting input process of individual character, and the identification process of input stroke, the cataloged procedure of individual character, and by individual character stroke code word process of looking in the dictionary in machine.

The dynamic input and the recognition methods of Chinese character of the present invention, the computing machine that employing can move freely on a plane is held the screen cursor control device as input equipment.Here the said screen cursor control device of holding is that the indication device is otherwise known as at the another kind of input media of using on the computer graphics except that keyboard.Its function is to hold device and come mobile computer screen vernier by handling one.By the position of moving cursor, it can be on screen or produces the line that a point or forms by the motion track of point or give directions out a certain location.Position and the variation thereof of vernier on screen can or store computing machine with the digital data form input.The at present widely used mark control device of holding has different types, game paddle for example, and " pen " in electron plate and the pen, and trace ball etc.Electronic pen and trace ball be can on a plane, move freely hold the screen cursor control device, promptly can be used as input equipment of the present invention.Wherein electronic pen needs to combine as a whole set of equipment use with electron plate, and trace ball then is fully independently a kind of input media.Trace ball is come the moving screen vernier by the rolling of the ball of operator control.Its typical case's representative is the Genius mouse in up-to-date one, two generation.Genius mouse is equipped with a garden ball that can roll flexibly in the bottom of a small-sized box.Small and light Genius mouse can grasp on a plane arbitrarily and move, and causes the rolling with the garden ball of plane contact.Its design makes the direction that moves of vernier on the screen of its control, and the direction that moves in the plane with its is consistent.In use of the present invention, a kind of very convenient and be similar to the pen the indication device be Genius mouse.Use this device, people can carry out the mapping of the free screen in real time of computing machine.Utilization has the indication apparatus of abundant sensitivity and the calculating screen with enough resolutions, just also the individual character font " can be write " as figure and be got off to import the calculation machine.For computing machine, each stroke of forming individual character is tantamount to single pattern line.By geometric manipulations to lines, be converted into numerical data input computing machine, just can allow machine internal program system stroke is recognized and be discerned.

Use this method without any need for special equipment conduct " paper ", desktop promptly is a paper.With the example that is input as of " Chinese " word, the operator operates Genius mouse and writes out Dian Dian on the table in order , just computing machine write in " Chinese " word.On the computer screen also these several strokes will appear correspondingly.If these several strokes are on correct relative, promptly write out with the correct way of forming " Chinese " word, " Chinese " word will correspondingly appear on the screen.In fact, as following it will be appreciated that, this be people by the needs that customary way writes, be not that computing machine identification stroke and identification individual character are necessary.

Chinese characters in computer of the present invention is dynamically imported the key with identifying, is the identification and the identification of handwritten stroke.Because the variation and lack of standardizationization of hand-written script are so for same unicursal, different computing machine users may import varied different stroke lines.The stroke identification is exactly a stroke of confirming that the handwritten stroke lines are affiliated.This task will be finished by a computer programming system.

For carrying out the identification of handwritten stroke, stroke identification programming system definition one cover " basic handwritten stroke ".The stroke of definition is different usually in basic handwritten stroke and the Chinese character system.In the printed Chinese character or in the Chinese character regular script, its a whole set of standard stroke is arranged.Yet hand-written script has its feature.It writes out in same mode often with strokes different in the printing type face.For example with " Shu " with “ 亅 " all be written as " Shu ".In addition, the same unicursal in printing type face in different hands, or in different words, can write out in a different manner.For example " Shu " can be written as " Shu " ， “ 亅 ", or " ".Like this, if in handwritten form " Shu " Yu “ 亅 ", still be defined as its different this strokes, will cause confusion at an easy rate.For example, stroke identification programming system can will constitute all strokes of Chinese character pattern, classifies as eight kinds " basic handwritten strokes ".These eight kinds basic input strokes are respectively four kinds of single stroke points, and horizontal stroke is perpendicular, cast aside, and four kinds of multiple stroke cross breaks, horizontal left-falling stroke, perpendicular folding, bias.So-called multiple pen is still one is write as (this is the basis that constitutes single stroke).But the geometric properties of single stroke be single continuously, a multiple stroke then can be regarded as and is linked to be by two one of above single strokes.Consider the characteristics of hand-written script, first kind of handwritten stroke comprised the close stroke in several Chinese character block letter respectively here, and the multiple stroke in the block letter that has is “ 亅 for example ", also be included in the hand-written single stroke.Table 1 has provided the concrete define method of these eight kinds of basic handwritten strokes.

Table 1 is eight kinds of basic handwritten strokes of the present invention and corresponding number.

The feature of the basic handwritten stroke of definition is described variable with a stack features and is represented.Typical feature is described variable, and the trend of stroke is arranged, angle, single or multiple pen etc.The feature of single stroke can clearly illustrate that and make a distinction with angle and trend.For example, basic handwritten stroke " horizontal stroke " since this stroke except " one ", also comprised "

" etc., its characterizing definition is: it is one from left to right, angle at negative ten degree of distance horizontal line to the single strokes between positive 90 degree.The characterizing definition of the basic handwritten stroke of all the other singles can be analogized.Stroke lines for input, stroke identification programming system is to its mark coordinate data (X0, Y0), (X1, Y1) ... (Xn, Yn) process calculating, calculate the tan value (Y1-Y0)/(X1-X0) of its angle, (Y2-Y1)/(X2-X1) ..., can determine its angle and trend at an easy rate.Like this, by feature relatively, computing machine stroke identification programming system can accurately be given up into the basic handwritten stroke under the stroke lines.

The feature of the basic handwritten stroke of multiple pen can be by realizing single stroke and the affirmation in proper order thereof of forming multiple pen.Perpendicular folding as shown in table 1 may be defined as by one and perpendicular adds horizontal a composition then.When computing machine receives stroke lines are multiple strokes, and by it in proper order by one during perpendicular and horizontal composition, should be " the perpendicular folding " then by this multiple stroke relatively.Turnover from perpendicular to horizontal stroke is because the rapid variation of its geometric properties is not embarrass computing machine determined.

After receiving the handwritten stroke geometric data of input, for carrying out the stroke identification, machine internal program system will carry out a series of processing to input lines data and handle.Accompanying drawing two has provided each single step of identification process.Raw data being carried out at first will remove noise spot etc. on the basis of primary Calculation, original lines are organized into the stroke lines of smooth and continuous.Then, by carrying out geometrical calculation, find out the feature of input stroke to putting later stroke data in order.For example move towards finding out it, angle, the feature of the multiple pen of single has promptly been determined after its characteristic variable value, by comparing discriminating with basic handwritten stroke, can recognize the handwritten stroke of input.In the example of superincumbent " Chinese " word, Dian, Dian,

To be accredited as respectively a little, point, horizontal stroke, horizontal left-falling stroke and put this five kinds of basic handwritten strokes, and obtain strokes number 1,1,2,6,1.

In Chinese character input process, by receiving specific signal, computing machine can know that a Chinese character write.The one group of stroke that promptly receives has intactly been formed an individual character.After identifying the composition stroke of handwriting input individual character, next step will be encoded to individual character exactly.The present invention has adopted the method for forming stroke and sequential encoding by individual character.This method will constitute all strokes numbers of individual character simply by the rules for writing series arrangement, just obtain the code of individual character.This method is similar to carries out index to English word by its series arrangement of forming letter, directly perceived simple, understands and use all to be easy to.Each composition letter of English word may be any one in 26 letters.Its each number capacity must be 26 at least in other words, needs the storage of five bits.Each strokes number numerical value of individual character is up to 8 in this method, so it only needs the storage of triad number.Though the English word great majority contain five to 12 letters, and the stroke number majority of Chinese character individual character is between seven to 15, and on an average as can be seen, the required storage area of Chinese character individual character code is still significantly less than English word.For example go up " Chinese " word in the example, its individual character code is 11261, is made up of five strokes numbers, and its storage accounts for 5 * 3,15 binary numbers.Compare if get a brief English word " good ", then it is made up of four letters, needs the storage area of 4 * 5,20 binary numbers altogether.

Look into the word process promptly by the process of this individual character of individual character stroke codelookup.This process is finished by a machine internal program.Look into word program and use stroke code dictionary in the program.The stroke code dictionary is a kind of dictionary by stroke arrangement and Chinese character retrieval.It is regarded the individual character font by a cover basic stroke as constitutes.Each individual character has the unicursal code by its architectural feature.This dictionary gets up individual character by stroke code series arrangement.The method is similar to English dictionary and arranges in proper order and retrieve by the word letter composition.When competitive list word stroke code, from left to right each stroke code is compared, arrange in proper order by it." Chinese " word code 11261 for example, " sweat " word code 11223, " literary composition " word code 1241, then " Chinese " word comes after " sweat " word, before " literary composition " word.Here the individual character code is a symbol as a whole, and does not have numerical values recited.The stroke code of Chinese character has fabulous unicity.When the stroke number is very little, the situation of the existence of only a few with code word arranged sometimes.For example " people " word and " going into " word.In addition, the repeated code phenomenon does not almost have.When existing with code word, the interior dictionary of machine is used letter and as auxiliary code they is made a distinction.In coding, be noted that consistent that its individual character stroke code will be with the front cataloged procedure during stroke code dictionary.The basic stroke of its definition in other words must be consistent with the basic handwritten stroke used in the stroke identification process.Computing machine is promptly searched in dictionary by the stroke code index after obtaining importing the stroke code of individual character fast.Having found this code is the corresponding individual character of code, has promptly finished the input process of individual character.Under the situation of only a few, in dictionary, can not find out this unicursal code, or its to represent individual character be not the individual character of being imported, computing machine can ask the operator that individual character is carefully write one time again, finds out the input individual character up to correctly.

Compare with existing Chinese character entering technique, Chinese characters in computer of the present invention is input and recognition methods dynamically, have concerning the user simple, direct advantage fast.It makes the mode of being accustomed in the enough daily lifes of user's energy to computer input of Chinese characters, and does not need study or remember any special input method or code system.Therefore it can greatly make things convenient for the common user of computing machine, thereby promotes the application of computing machine in the Chinese character word processing.

Below accompanying drawing is done a brief description.

Fig. 1 illustrative dynamic each process of input and recognition methods of Chinese characters in computer.

Chart understands that stroke identification process institute is through concrete steps.

Figure for example understands the handwriting input and the screen display process of individual character.

To illustrate in more detail by example below how to realize Chinese characters in computer dynamically input and recognition methods.

With a Genius mouse, import " word " word with three buttons.Have at least one to be " extraction " button in three buttons, another is " finishing " button.The function that " extraction " carried out is to extract the position of vernier on screen, promptly to the computing machine input cursor at that time the coordinate of position (X Y), satisfies the needs of computer operation." finish " then providing signal of computing machine, represent that a certain process finishes." word " word is made of in order stroke " horizontal colluding, horizontal left-falling stroke perpendicular is colluded horizontal stroke for point, point ".When computing machine demonstrated it and has been ready to receive Chinese character input information on screen, having a zone on the screen was that district, i.e. font viewing area " are write " in appointment.The operator moves to Slide gauge and writes in the district on the desirable position, clicks " extraction " button, can begin writing of initial stroke " point ".Accompanying drawing 3(a) shown this process.No matter be a single or a multiple stroke, when having write a stroke,, just finished writing of this unicursal, as accompanying drawing 3(b by " extraction " button under another) and (c) shown in (d).In " word " word,, just write first stroke that is over " point " by second time " extraction " button.Then vernier is moved on the position of next stroke " point ",, begin to write second stroke " point " of " word " word again by " extraction " button.Below by that analogy.Touching the button during each stroke starting and ending, starting writing and starting writing when writing is very convenient with fast after being accustomed to, even just finishes unconsciously.In the process of writing, each stroke promptly shows on screen in real time, sees that screen is as see the word that writes out on paper.Because the design of Genius mouse, vernier moving on screen is consistent with Genius mouse move mode on the table.Like this, " write " word on the table with Genius mouse, and see that in real time this word writes out every stroke on screen, just to equal the process of the word that into writes with a pen very similar with people for this process.After be over according to the rules for writing sequential write " horizontal colluding, horizontal left-falling stroke perpendicular is colluded horizontal stroke for point, point ", " word " word just appears on the curtain among the people, click " finishing " button.Computing machine knows that promptly a word write.

In the writing process of stroke, (X Y) is ceaselessly inputed to stroke identification program in the machine to the change point mark coordinate of stroke lines fast.The identification program whenever receives a handwritten stroke, promptly be receive one group of some mark coordinate (X0, Y0), (X1, Y1) ... (Xn, Yn).Said as the front, for carrying out the stroke identification, it at first will smoothly be put in order this group raw data.It removes indivedual points of unusual variation, and remaining valid data is carried out mean value smoothing handle.Then, carry out feature calculation to the stroke lines.In this process, at first to divide segment to move towards accurately and angle calculation to the stroke lines.On this basis, can determine to import stroke is a single or a multiple stroke.If the trend of stroke lines and angle have obvious and unexpected variation, for example horizontal left-falling stroke "

", by from left to right becoming from the upper right side to the lower left, then its representative is a multiple stroke.Next step is or to form again the single lines of a stroke and to carry out the definite and classification of feature the single stroke, and gives corresponding strokes number to the single stroke of confirming.First stroke of importing in " word " word is from left to bottom right, the single lines of angle between negative 75 degree of distance horizontal line are spent to negative ten.Through comparing, the input stroke is one " point ", and strokes number is 1.Initial lines in the 5th stroke " 亅 " are one " erecting " as can be seen, last lines then be one from lower right to upper left " colluding ".Last step of stroke identification is a multiple stroke of importing to be carried out basic handwritten stroke confirm.It may be confirmed to be is a hand-written substantially multiple stroke, also may be confirmed to be to belong to a hand-written single stroke." perpendicular the colluding " imported in " word " word " erected " through more just being classified as basic handwritten stroke, and strokes number is 3.

After receiving " finishing " signal that Genius mouse sends here, computing machine knows that the received hexad stroke in front has constituted an individual character.Through identification, this group stroke is respectively basic handwritten stroke point in order, point, and horizontal left-falling stroke, horizontal left-falling stroke, perpendicular, horizontal stroke has strokes number 1,1 respectively, and 6,6,3,2.Therefore, the input individual character has stroke code 116632.Computing machine is looked into word program then with stroke code dictionary in the service routine, seeks its corresponding individual character.Through checkpoint, it has promptly provided input individual character " word " word.

Claims (9)

1, dynamically input and recognition methods of a kind of Chinese characters in computer, it is characterized in that adopting a computing machine to hold the screen cursor control device and in hand-written mode computing machine imported in real time in the Chinese character individual character as its input equipment, use a computer programming system, by finishing the handwritten stroke identification, single character code, the individual character search procedure realizes the input of Chinese character individual character.

2, as claim 1 described method, it is characterized in that it is one to have any computer input unit of following function that said computing machine is held the screen cursor control device: it can grasp on a plane and move freely, it move can the operating computer screen on the moving of Slide gauge, in the vernier moving process, its position and variation thereof on screen, can and store computing machine with the digital data form input, its motion track can be used as lines and shows on screen.

3,, it is characterized in that it can be independent the use that said computing machine is held the screen cursor control device, or form a kind of computer input unit that a whole set of equipment uses with other device as claim 1 described method.

4, as claim 1 described method, it is characterized in that the hand-written real-time input of said individual character is to use a computing machine that is equivalent to pen to hold the screen cursor control device, by being equivalent to write on the free plane of paper one, carry out the computer real-time input of individual character, in the process of writing, the individual character font of writing will show on computer screen in real time.

5, as claim 1 described method, it is characterized in that said computer programming system is on the basis that the input stroke data is handled, handwritten stroke to input is recognized, behind composition stroke that obtains individual character and sequential write thereof, press the stroke code coding method of Chinese character, individual character is encoded, use stroke code dictionary in the program, press individual character stroke code, search the input individual character.

6, as claim 5 described methods, it is characterized in that the identification of said handwritten stroke is that the raw data of the handwritten stroke lines of input computing machine is carried out edit, extract the geometric properties of the hand-written stroke lines bar in arrangement back, on this basis, the basic handwritten stroke of a cover that input stroke and standard are as a comparison used compares, and the input stroke is recognized classification.

7, as claim 6 described methods, it is characterized in that said basic handwritten stroke is a cover stroke that defines on the basis of considering the handwritten stroke characteristics, the feature of its each basic handwritten stroke, available certain geometric parameter is represented.

8, as claim 5 described methods, it is characterized in that said Chinese-character stroke code coding method is the basic stroke that definition one cover constitutes Chinese character pattern, each basic stroke has the unicursal number, Chinese character individual character stroke code directly by the strokes number of the basic stroke of forming this individual character, constitutes by the rules for writing order.

9, as claim 5 described methods, it is characterized in that said Chinese-character stroke code dictionary is to arrange by individual character stroke code, individual character is retrieved by its stroke code.

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