CN108664966A - A kind of note recording method and device - Google Patents
A kind of note recording method and device Download PDFInfo
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- CN108664966A CN108664966A CN201710215077.4A CN201710215077A CN108664966A CN 108664966 A CN108664966 A CN 108664966A CN 201710215077 A CN201710215077 A CN 201710215077A CN 108664966 A CN108664966 A CN 108664966A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 30
- 230000005019 pattern of movement Effects 0.000 claims abstract description 5
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000004215 lattice model Methods 0.000 claims 1
- 230000002123 temporal effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- G06V30/14—Image acquisition
- G06V30/144—Image acquisition using a slot moved over the image; using discrete sensing elements at predetermined points; using automatic curve following means
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- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Television Signal Processing For Recording (AREA)
Abstract
The present embodiments relate to a kind of note recording method and device, the note recording method includes that counter is counted to exporting the first pulse signal according to clock oscillator, output system clock signal；Image acquiring sensor records the movement on coding sheet, and is acquired to the coding pattern of movement notes region, generates coding pattern picture signal；Processing is identified to the coding pattern picture signal in image processing apparatus, exports the movement and takes down notes corresponding location information, and generates note taking data according to movement notes and the location information；Processor receives the note taking data, and according to the clock signal of system generated time information, is that the note taking data add timestamp by the temporal information, generates note image frame data；The note image frame data are carried out data splicing by the processor according to the timestamp, generate note taking image data.
Description
Technical field
The present invention relates to image recognition processing apparatus field more particularly to a kind of note recording methods and device.
Background technology
With the rapid development of information technology, people are increasingly commonly produced, are handled, exchanged and propagated using computer
Various forms of information.Information technology gradually changes people’s lives custom.It is traditional to be write using paper and pen
Mode can not carry out information process-, therefore cannot be satisfied the needs of people.
If record and the reduction of notes can be realized in modern information process- method, letter can be greatly improved
The efficiency of record is ceased, thus, how notes effectively record, are obtained, become as problem to be solved.
Invention content
The object of the present invention is to provide a kind of note recording method and devices, can accurately identify the position letter of coding pattern
Breath can carry out the notes of record effective position, and add timestamp to notes according to system clock, to realize notes
Accurate recording, and facilitate the shared of record information and preserve.
To achieve the above object, in a first aspect, an embodiment of the present invention provides a kind of note recording method, the method
Including：
Counter is counted to exporting the first pulse signal according to clock oscillator, output system clock signal；
Image acquiring sensor records the movement on coding sheet, and to the volume of movement notes region
Code pattern is acquired, and generates coding pattern picture signal；
Processing is identified to the coding pattern picture signal in image processing apparatus, and it is corresponding to export the movement notes
Location information, and generate note taking data according to movement notes and the location information；
Processor receives the note taking data, and according to the clock signal of system generated time information, passes through institute
It is that the note taking data add timestamp to state temporal information, generates note image frame data；
The note image frame data are carried out data splicing by the processor according to the timestamp, generate note taking
Image data.
Preferably, processing is identified to the coding pattern picture signal in described image processing unit, exports the fortune
The corresponding location information of note of starting writing specifically includes：
Described image processing unit is built according to the described image acquisition collected coding pattern picture signal of sensor is received
Vertical grid model；Wherein, the grid model includes mesh point and grid lines, and the grid lines is intersected in mesh point；
Nominal position is determined according to the grid model；
The label that coding pattern is identified according to the coding pattern picture signal, determines mark position；
The value of the label is determined according to the mark position relative to the nominal position, so that it is determined that the movement is taken down notes
Corresponding location information.
It is further preferred that the label for identifying coding pattern according to the coding pattern picture signal, determines label
Position is specially：
Along the grid lines converged on the mesh point, the label is searched for.
It is further preferred that the label for identifying coding pattern according to the coding pattern picture signal, determines label
Position is specially：
Apart from the position of the mesh point pre-determined distance, the label is searched for.
It is further preferred that mark position of the basis relative to the nominal position, determines that the value of label is specially：
According to the label to the displacement of the nominal position, the value of the label is determined.
In second aspect, an embodiment of the present invention provides a kind of note taking devices, including：
The bottom end of shell, the shell is equipped with opening, and the inside of the shell is holding part；
Clock oscillator is set in the holding part, for exporting the first pulse signal；
Counter is set in the holding part, to being counted according to first pulse signal, output system clock
Signal；
Image acquiring sensor is set in the holding part, is taken down notes to the movement on coding sheet by the opening
It is recorded, and the coding pattern of movement notes region is acquired, generate coding pattern picture signal；
Image processing apparatus is set in the holding part, and processing is identified to the coding pattern picture signal, defeated
Go out the movement and take down notes corresponding location information, and note taking number is generated according to movement notes and the location information
According to；
Processor receives the note taking data, and according to the clock signal of system generated time information, passes through institute
It is that the note taking data add timestamp to state temporal information, generates note image frame data；Also, according to the timestamp
The note image frame data are subjected to data splicing, generate note taking image data.
Preferably, the note taking device further includes：
Writing end is set to the bottom end of the shell, for being write on the coding sheet, forms the movement notes.
Preferably, the note taking device further includes：
Illuminating device is set in the holding part, on the coding sheet to described image acquisition sensor acquisition
Coding pattern is illuminated.
It is further preferred that the note taking device further includes：
Control device is set in the holding part, with the counter, image acquiring sensor, image processing apparatus,
Wireless module and/or illuminating device are connected；
The control device output control signal, control described image acquisition sensor, image processing apparatus, wireless module
And/or the startup and closing of illuminating device.
It is further preferred that the note taking device further includes：
Power module is set in the holding part, with the clock oscillator, counter, image acquiring sensor, figure
As processing unit, wireless module, control device are connected with illuminating device, and it is powered.
Note recording method provided in an embodiment of the present invention can accurately identify the location information of coding pattern, can be right
The notes of record carry out effective position, and add timestamp to notes according to system clock, to realize the accurate recording of notes,
And facilitates the shared of record information and preserve.
Description of the drawings
Fig. 1 is the method flow diagram of note recording method provided in an embodiment of the present invention；
Fig. 2 a- Fig. 2 d are the schematic diagram of a unit of coding pattern provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of note taking device provided in an embodiment of the present invention.
Specific implementation mode
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
For a better understanding of the technical solution of the present invention, firstly for note recording method proposed by the present invention and device
Application scenarios be introduced.
The note recording method of the present invention, for coding sheet, electronic writing plate or other substrates with coding pattern
Coding pattern on movement recorded, and the coding pattern on movement locus is acquired, is identified, pass through coding
Pattern determines the corresponding location information of the motion track of note taking device, so as to realize the track reduction of notes and reproduce
Function.
For ease of statement, in the present invention by taking coding sheet as an example, for it is various can carry out substrate that coding pattern is shown into
Row system is stated.
The embodiment of the present invention provides firstly a kind of note recording method, is implemented in note taking device, method stream
Journey figure is as shown in Figure 1, include the following steps：
Step 110, counter is counted to exporting the first pulse signal according to clock oscillator, output system clock letter
Number；
Specifically, having counter and clock oscillator in note taking device, counter exports clock oscillator
Pulse signal is counted, and the monotonic sequence of Counter Value, and thus output system clock signal are continuously generated.
Step 120, image acquiring sensor records the movement on coding sheet, and to where movement notes
The coding pattern in region is acquired, and generates coding pattern picture signal；
Specifically, when being write using the pen being installed on note taking device, the image on note taking device
It acquires sensor and movement locus record is carried out to the writing of pen.The movement locus can be the person's handwriting generated on digital paper.
Preferably, the record of movement locus is recorded in the form of stroke, can be carried out as node using the action started writing
Data record and processing.
Coded image is printed on coding sheet.Coding pattern at least occupies the part on its surface, is filled by note taking
Optical readable is set, so as to the determination for carrying out location information.
The acquisition of coding pattern obtains, and is not the primary whole coding patterns obtained on coding sheet, but according to notes
The coding pattern that corresponding portion is obtained within the scope of the optical field of recording device, one can consider that being the volume of a reference cell
Code pattern.
Step 130, processing is identified to coding pattern picture signal in image processing apparatus, and output movement notes are corresponding
Location information, and generate note taking data according to movement notes and location information；
Wherein, the step of output movement notes corresponding position information can specifically include：
Step 131, image processing apparatus is built according to the collected coding pattern picture signal of image acquiring sensor is received
Vertical grid model；
Wherein, grid model includes mesh point and grid lines, and grid lines is intersected in mesh point；
In specific example, the schematic diagram of the coding pattern of a unit is set forth in Fig. 2 a- Fig. 2 d.
The schematic diagram of coding pattern based on Fig. 2 a- Fig. 2 d illustrates：Note taking device is reading Fig. 2 a- Fig. 2 d
Any coding pattern after, can based on preset basic model carry out coding pattern picture signal analysis, establish virtual net
Lattice point and grid lines, to analyze coding pattern, the joint of wherein grid lines is exactly mesh point.In Fig. 2 a-2d,
Mesh point is labeled as 6, and grid lines is labeled as 8.
Step 132, nominal position is determined according to grid model；
Specifically, in this example, being preferably used as nominal position using mesh point 6.
Step 133, the label that coding pattern is identified according to coding pattern picture signal, determines mark position；
Specifically, the determination method of mark position includes at least two：
Specifically, the stain in figure, the as label of coding pattern.After recognizing the label of coding pattern, you can
Determine the mark position in network model.
Certainly, label needs to be set according to preset rules, that is to say, that when forming coding sheet, it is necessary to
Come setting flag position according to preset rules, to which label in this step, can be found according to preset rules and determine label
Position.
It searches and marks and determine that the mode of mark position may include at least two：
One is along the grid lines converged on mesh point, search label.
Another kind is apart from the position of mesh point pre-determined distance, search label.
Step 134, according to the value for determining label relative to the mark position of nominal position, so that it is determined that movement notes correspond to
Location information.
Specifically, the value of label depends on relative position of the label 7 to nominal position (mesh point) 6.In the reality of Fig. 2 a-2d
Give four possible positions in example, it is each on the every grid lines 8 extended from nominal position there are one.
Each label 7 has preset fixed displacement relative to its nominal position 6, also, corresponds to each nominal position 6
Only there are one labels 7.Certainly, if can also there is other labels on coding sheet, they may not be a part for pattern, such as
Can be the dust spot of image or figure, it is not intended to the point of figure or the label of other purposes.Due to the position of label 7 must be
Fixed displacement, therefore, these other labels do not affect the identification to label 7.
For preset fixed position, for the ease of accurately identifying for label, need to follow following rule under normal circumstances.
In a specific example, relative to nominal position 6 along 8 displacement 50um of grid lines, displacement is preferably label 7
The 1/6 of grid interval, because in contrast this is easy to determine which nominal position some specific label belongs to.Meanwhile in order to true
Which nominal position is calibration note belong to, and displacement should also be less than the 1/4 of grid interval.
In addition, displacement is not necessarily all along grid lines, label can also be located in independent quadrant.Label is also not necessarily such as
All it is round or circle shown in figure, any proper shape such as square or triangle can also be used.
No matter mark position determined using which kind of above-mentioned mode, can according to the displacement of mark position to nominal position come
Determine the value of label.
Step 140, processor receives note taking data, and according to clock signal of system generated time information, when passing through
Between information be note taking data add timestamp, generate note image frame data；
Specifically, note taking data are recorded in the form of gesticulating, by being gesticulated each and corresponding temporal information
It is associated, timestamp is added for note taking data, to generate note image frame data.Namely it is to be understood that notes figure
As frame data be there is timestamp gesticulate record.And the set of note image frame data is exactly the note for the movement locus taken down notes
Record.
Step 150, note image frame data are carried out data splicing by processor according to timestamp, generate note taking image
Data.
Specifically, by data splicing, it can restore to obtain note taking image data, to realize notes movement locus
Reproduction.
Note recording method provided in an embodiment of the present invention can accurately identify the location information of coding pattern, can be right
The notes of record carry out effective position, and add timestamp to notes according to system clock, to realize the accurate recording of notes,
And facilitates the shared of record information and preserve.
Correspondingly, the embodiment of the present invention additionally provide it is a kind of to realize above-mentioned note recording method note taking dress
It sets, schematic diagram is as shown in figure 3, include：
The bottom end of shell 11, the shell is equipped with opening 12, and the inside of the shell is holding part 10；
Clock oscillator 30 is set in the holding part 10, for exporting the first pulse signal；
Counter 40 is set in the holding part 10, to being counted according to first pulse signal, output system
Clock signal；
Image acquiring sensor 14 is set in the holding part 10, passes through fortune of 12 pairs of the opening on coding sheet
It starts writing and remembers capable record into, and the coding pattern of movement notes region is acquired, generate coding pattern picture signal；
In concrete implementation, image acquiring sensor 14 can specifically use CCD or cmos sensor.
Image processing apparatus 16 is set in the holding part 10, and place is identified to the coding pattern picture signal
Reason exports the movement and takes down notes corresponding location information, and generates notes note according to movement notes and the location information
Record data；
Processor 50 receives the note taking data, and according to the clock signal of system generated time information, passes through
The temporal information is that the note taking data add timestamp, generates note image frame data；Also, according to the time
The note image frame data are carried out data splicing by stamp, generate note taking image data.
In addition, the note taking device further includes：Writing end 17 is set to the bottom end of the shell 11, for described
It is write on coding sheet, forms the movement notes.
Illuminating device 13 is set in the holding part 10, the coding for being acquired to described image acquisition sensor 14
Coding pattern on paper is illuminated.
Light emitting diode specifically may be used in illuminating device 13, can select two poles to special light sensitive as needed
Pipe, such as infrared light-emitting diode.
Control device 18 is set in the holding part 10, with the counter 40, image acquiring sensor 14, image
Processing unit 16, wireless module 19 and/or illuminating device 13 are connected；
The output control signal of the control device 18, control described image acquisition sensor 14, image processing apparatus 16, nothing
The startup and closing of wire module 19 and/or illuminating device 13.
Power module 15 is set in the holding part 10, with the clock oscillator 30, counter 40, Image Acquisition
Sensor 14, image processing apparatus 16, wireless module 19, control device 18 are connected with illuminating device 13, and are powered.
In concrete implementation, power module 15 can be realized by battery and related circuit.
Note taking device provided in an embodiment of the present invention, can accurately identify the location information of coding pattern, can be right
The notes of record carry out effective position, and add timestamp to notes according to system clock, to realize the accurate recording of notes,
And facilitates the shared of record information and preserve.
Professional should further appreciate that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, depend on the specific application and design constraint of technical solution.
Professional technician can use different methods to achieve the described function each specific application, but this realization
It should not be considered as beyond the scope of the present invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can use hardware, processor to execute
The combination of software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium well known to interior.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of note recording method, which is characterized in that the note recording method includes：
Counter is counted to exporting the first pulse signal according to clock oscillator, output system clock signal；
Image acquiring sensor records the movement on coding sheet, and to the code pattern of movement notes region
Case is acquired, and generates coding pattern picture signal；
Processing is identified to the coding pattern picture signal in image processing apparatus, exports the movement and takes down notes corresponding position
Information, and generate note taking data according to movement notes and the location information；
Processor receives the note taking data, and according to the clock signal of system generated time information, by it is described when
Between information be the note taking data add timestamp, generate note image frame data；
The note image frame data are carried out data splicing by the processor according to the timestamp, generate note taking image
Data.
2. note recording method according to claim 1, which is characterized in that described image processing unit is to the code pattern
Processing is identified in case picture signal, exports the corresponding location information of the movement notes and specifically includes：
Described image processing unit establishes net according to the described image acquisition collected coding pattern picture signal of sensor is received
Lattice model；Wherein, the grid model includes mesh point and grid lines, and the grid lines is intersected in mesh point；
Nominal position is determined according to the grid model；
The label that coding pattern is identified according to the coding pattern picture signal, determines mark position；
The value of the label is determined according to the mark position relative to the nominal position, so that it is determined that movement notes correspond to
Location information.
3. note recording method according to claim 2, which is characterized in that described according to the coding pattern picture signal
The label for identifying coding pattern, determines that mark position is specially：
Along the grid lines converged on the mesh point, the label is searched for.
4. note recording method according to claim 2, which is characterized in that described according to the coding pattern picture signal
The label for identifying coding pattern, determines that mark position is specially：
Apart from the position of the mesh point pre-determined distance, the label is searched for.
5. note recording method according to claim 2, which is characterized in that the basis is relative to the nominal position
Mark position determines that the value of label is specially：
According to the label to the displacement of the nominal position, the value of the label is determined.
6. a kind of note taking device, which is characterized in that described device includes：
The bottom end of shell, the shell is equipped with opening, and the inside of the shell is holding part；
Clock oscillator is set in the holding part, for exporting the first pulse signal；
Counter is set in the holding part, to being counted according to first pulse signal, output system clock letter
Number；
Image acquiring sensor is set in the holding part, is taken down notes and is carried out to the movement on coding sheet by the opening
Record, and the coding pattern of movement notes region is acquired, generate coding pattern picture signal；
Image processing apparatus is set in the holding part, and processing is identified to the coding pattern picture signal, exports institute
It states movement and takes down notes corresponding location information, and note taking data are generated according to movement notes and the location information；
Processor, receives the note taking data, and according to the clock signal of system generated time information, by it is described when
Between information be the note taking data add timestamp, generate note image frame data；Also, according to the timestamp by institute
It states note image frame data and carries out data splicing, generate note taking image data.
7. note taking device according to claim 6, which is characterized in that the note taking device further includes：
Writing end is set to the bottom end of the shell, for being write on the coding sheet, forms the movement notes.
8. note taking device according to claim 6, which is characterized in that the note taking device further includes：
Illuminating device is set in the holding part, for the coding on the coding sheet to described image acquisition sensor acquisition
Pattern is illuminated.
9. note taking device according to claim 8, which is characterized in that the note taking device further includes：
Control device is set in the holding part, with the counter, image acquiring sensor, image processing apparatus, wireless
Module and/or illuminating device are connected；
Control device output control signal, control described image acquisition sensor, image processing apparatus, wireless module and/
Or the startup and closing of illuminating device.
10. note taking device according to claim 9, which is characterized in that the note taking device further includes：
Power module is set in the holding part, at the clock oscillator, counter, image acquiring sensor, image
Reason device, wireless module, control device are connected with illuminating device, and are powered.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215077.4A CN108664966A (en) | 2017-04-02 | 2017-04-02 | A kind of note recording method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710215077.4A CN108664966A (en) | 2017-04-02 | 2017-04-02 | A kind of note recording method and device |
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| CN108664966A true CN108664966A (en) | 2018-10-16 |
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| CN201710215077.4A Pending CN108664966A (en) | 2017-04-02 | 2017-04-02 | A kind of note recording method and device |
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| CN110930129A (en) * | 2019-12-04 | 2020-03-27 | 广州云蝶科技有限公司 | Dot matrix paper pen technology application method combined with weekly work plan |
| CN111083067A (en) * | 2018-10-19 | 2020-04-28 | 百度在线网络技术（北京）有限公司 | Data stream splicing method and device, storage medium and terminal equipment |
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