CN107194397A - Recognition methods, device and the image processing apparatus of card placement direction - Google Patents
Recognition methods, device and the image processing apparatus of card placement direction Download PDFInfo
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- CN107194397A CN107194397A CN201710321533.3A CN201710321533A CN107194397A CN 107194397 A CN107194397 A CN 107194397A CN 201710321533 A CN201710321533 A CN 201710321533A CN 107194397 A CN107194397 A CN 107194397A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/24—Aligning, centring, orientation detection or correction of the image
- G06V10/242—Aligning, centring, orientation detection or correction of the image by image rotation, e.g. by 90 degrees
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/24—Aligning, centring, orientation detection or correction of the image
- G06V10/245—Aligning, centring, orientation detection or correction of the image by locating a pattern; Special marks for positioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
Abstract
The present invention provides a kind of recognition methods, device and the image processing apparatus of card placement direction, and method includes：Card is scanned, the FX on card image is obtained；In FX, the characteristic value that the FX characteristic is characterized on the card image is obtained；The placement direction of card is identified according to FX and the characteristic value for characterizing the FX characteristic；FX is characterized positional information of the mark in card image, and the characteristic value for characterizing the FX characteristic is based on can characterize the parameter value of the FX particular community acquired in the FX image pixel information.Therefore, the present invention can efficiently identify the placement direction of card, it is to avoid placement direction is identified using complex optical character identification mode, simplify identifying processing flow, and identification process is simple, easily realize, while having higher discrimination.
Description
Technical field
The present invention relates to image identification technical field, more particularly to a kind of recognition methods of card placement direction, device with
And image processing apparatus.
Background technology
With the continuous improvement of living standard, various service business are added in daily life, are needed in people
When handling service business, the copy of various certificate cards is often may require that, for example, the copy of identity card, bank card
Copy, copy of social security card etc.；Illustrated below exemplified by duplicating identity card, identity card in the prior art is double
When face is duplicated, it usually needs user is first put into front in the region specified in scanning means, and then the back side is put into again
In the region specified；So for the user for not knowing about scanning means, mistake is easily duplicated, paper is wasted, and waste
The time of user.And during ID card two-sided duplicating of the prior art, because the randomness that user places identity card is easily led
Final output image is caused to turn upside down, and user must place the positive and negative of identity card according to specified order；If be unfamiliar with
The user of scanning means, frequent easily operating mistake, use is very inconvenient.
In order to solve the above-mentioned unhandy technical problem of scanning means, Chinese Patent Application No. present in prior art
For disclosed in CN201410072000.2 patent application it is a kind of can automatic identification positive and negative method, but the automatic identification
Method needs to obtain card by complicated optical character identification (Optical Character Recognition, abbreviation OCR)
In text information, handling process is cumbersome, complicated and discrimination is relatively low.
The content of the invention
The present invention provides a kind of recognition methods, device and the image processing apparatus of card placement direction, existing for solving
Handling process with the presence of technology is cumbersome, complicated and the problem of relatively low discrimination.
An aspect of of the present present invention provides a kind of recognition methods of card placement direction, including：
Card is scanned, the FX on card image is obtained；
In the FX, the characteristic value of the sign FX characteristic on the card image is obtained；
The placement direction of the card is entered according to the FX and the characteristic value for characterizing the FX characteristic
Row identification；
Wherein, the FX is characterized positional information of the mark in the card image, characterizes the fixed area
The characteristic value of domain characteristic is based on can characterize the FX specified genus acquired in the FX image pixel information
The parameter value of property.
Method as described above, according to the FX and the characteristic value for characterizing the FX characteristic to the card
The placement direction of piece is identified, including：
If the FX matches with the reference direction FX pre-set, and it is special to characterize the FX
The characteristic value of property matches with the reference direction characteristic value pre-set, then by the reference direction FX, reference direction
Predetermined direction corresponding to characteristic value confirms as the placement direction of the card；
Wherein, the predetermined direction includes positive direction, opposite direction, left direction and right direction.
Method as described above, after confirming the placement direction of the card for opposite direction, methods described also includes：
Mirror image processing is carried out to the card image, to cause the display direction of the card image to be changed to positive direction；
Export the card image after mirror image processing.
Method as described above, after confirming the placement direction of the card for left direction/right direction, the side
Method also includes：
Rotation processing is carried out to the card image, to cause the display direction of the card image to be changed to positive direction；
Export the card image after rotation processing.
After method as described above, the FX on card image is obtained, methods described also includes：
If the FX matches with the standard front face FX pre-set, confirm that the card image is
The direct picture of card；Or,
If the FX matches with the standard reverse side FX pre-set, confirm that the card image is
The verso images of card.
Method as described above, before being scanned to card, obtains the type information of the card of user's input；Or
Person,
After FX on card image is obtained, the characteristic information on the card image is obtained；
If the FX matches with the type FX pre-set, and the characteristic information and standard
Type feature information match, then by the type of card corresponding to the type FX, type characteristic information
Confirm as the type information of the card.
Another aspect provides a kind of identifying device of card placement direction, including：
Scan module, for being scanned to card, obtains the FX on card image；
Acquisition module, it is special in the FX, obtaining the sign FX on the card image
The characteristic value of property；
Processing module, for according to the FX and characterizing the characteristic value of the FX characteristic to the card
Placement direction be identified；
Wherein, the FX is characterized positional information of the mark in the card image, characterizes the fixed area
The characteristic value of domain characteristic is based on can characterize the FX specified genus acquired in the FX image pixel information
The parameter value of property.
Device as described above, the processing module is used for：
If the FX matches with the reference direction FX pre-set, and it is special to characterize the FX
The characteristic value of property matches with the reference direction characteristic value pre-set, then by the reference direction FX, reference direction
Predetermined direction corresponding to characteristic value confirms as the placement direction of the card；
Wherein, the predetermined direction includes positive direction, opposite direction, left direction and right direction.
Device as described above, the processing module, be additionally operable to confirm the placement direction of the card for opposite direction it
Afterwards, mirror image processing is carried out to the card image, to cause the display direction of the card image to be changed to positive direction；
Described device also includes：
Output module, for exporting the card image after mirror image processing.
Device as described above, the processing module, be additionally operable to confirm the placement direction of the card for left direction/
After right direction, rotation processing is carried out to the card image, to cause the display direction of the card image to be changed to just
Direction；
Described device also includes：
Output module, for exporting the card image after rotation processing.
Device as described above, the processing module is additionally operable to：After FX on card image is obtained,
If the FX matches with the standard front face FX pre-set, confirm that the card image is
The direct picture of card；Or,
If the FX matches with the standard reverse side FX pre-set, confirm that the card image is
The verso images of card.
Device as described above, the acquisition module is additionally operable to：
Before being scanned to card, the type information of the card of user's input is obtained；Or,
After FX on card image is obtained, the characteristic information on the card image is obtained；
If the FX matches with the type FX pre-set, and the characteristic information and standard
Type feature information match, then by the type of card corresponding to the type FX, type characteristic information
Confirm as the type information of the card.
It is yet another aspect of the present invention to provide a kind of image processing apparatus, include the identification dress of above-mentioned card placement direction
Put.
Recognition methods, device and the image processing apparatus for the card placement direction that the present invention is provided, by obtaining card
The characteristic value of FX on image and the sign FX characteristic in FX, then to fixed area
The characteristic value of domain and the sign FX characteristic is analyzed and processed, and can efficiently identify the placement direction of card,
Avoid being identified come the placement direction to card using optical character identification mode complex in the prior art, simplify
Identifying processing flow, and identification process is simple, easily realize, while also having higher discrimination, so as to improve the identification
The practicality of method, is conducive to the popularization and application in market.
Brief description of the drawings
A kind of schematic flow sheet of the recognition methods for card placement direction that Fig. 1 provides for one embodiment of the invention；
Fig. 2 is the characteristic value provided in an embodiment of the present invention according to the FX and sign FX characteristic to institute
State the schematic flow sheet that the placement direction of card is identified；
A kind of schematic flow sheet of the recognition methods for card placement direction that Fig. 3 provides for another embodiment of the present invention；
A kind of schematic flow sheet of the recognition methods for card placement direction that Fig. 4 provides for further embodiment of this invention；
Fig. 5 is the flow of the positive and negative provided in an embodiment of the present invention that the card image is determined according to the FX
Schematic diagram；
Fig. 6 is the schematic flow sheet of the type information provided in an embodiment of the present invention for obtaining the card；
The structural representation that Fig. 7 places for the positive positive direction of identity card card that the specific embodiment of the invention is provided；
The structural representation that Fig. 8 places for the positive opposite direction of identity card card that the specific embodiment of the invention is provided；
The structural representation that Fig. 9 places for the positive left direction of identity card card that the specific embodiment of the invention is provided；
The structural representation that Figure 10 places for the positive right direction of identity card card that the specific embodiment of the invention is provided；
The structural representation that the positive direction for the identity card card reverse side that Figure 11 provides for the specific embodiment of the invention is placed；
The structural representation that the opposite direction for the identity card card reverse side that Figure 12 provides for the specific embodiment of the invention is placed；
The structural representation for the acquisition positive FX of identity card card that Figure 13 provides for the specific embodiment of the invention；
The structural representation of the FX for the acquisition identity card card reverse side that Figure 14 provides for the specific embodiment of the invention；
Figure 15 for the correct outbound course of identity card that the specific embodiment of the invention is provided structural representation；
The structural representation one for the identity card mistake outbound course that Figure 16 provides for the specific embodiment of the invention；
The structural representation two for the identity card mistake outbound course that Figure 17 provides for the specific embodiment of the invention；
Figure 18 is a kind of structural representation of the identifying device of card placement direction provided in an embodiment of the present invention；
Figure 19 is a kind of structural representation of image processing apparatus provided in an embodiment of the present invention.
Embodiment
With reference to the accompanying drawings and examples, the embodiment to the present invention is described in further detail.Following instance
For illustrating the present invention, but it is not limited to the scope of the present invention.
A kind of schematic flow sheet of the recognition methods for card placement direction that Fig. 1 provides for one embodiment of the invention；With reference to
Accompanying drawing 1 is understood, present embodiments provides a kind of recognition methods of card placement direction, and the recognition methods is used for the placement to card
Direction is identified, in order to which user is duplicated or scanned to card；Specifically, the recognition methods includes：
S101：Card is scanned, the FX on card image is obtained；
Above-mentioned card can be：Identity card, social security card, bank card or student card etc.；Needing to obtain card figure
During picture, card can be scanned using scanner of the prior art, afterwards can be to the FX on card image
It is identified, wherein, above-mentioned FX is characterized positional information of the mark in card image, it is to be understood that special
Levy and be designated what is pre-set, and different types of card takes on a different character mark, also, can also be according to card
Difference places form to set different FX, such as：The FX of laterally disposed card is put with placed longitudinally, inclination
Put or the FX of card in other laying states is different；For example, for identity card card, can be by fixation
Region is set to national emblem region, ID card No. region and head portrait region etc., in this case, the feature pre-set
It is designated national emblem, ID card No. and user's head portrait, and national emblem region, the identification card number of laterally disposed identity card card
Code region and head portrait region and national emblem region, ID card No. region and the head portrait region of placed longitudinally identity card card
It is different；And for social security card, FX can be set to national emblem region, social security number region and head portrait region etc.
Deng in this case, the signature identification pre-set is national emblem, social security number and user's head portrait, and laterally disposed
National emblem region, social security number region and the head portrait region of social security card and the national emblem region of placed longitudinally social security card, social security number
Code region and head portrait region difference are, it is necessary to which what is illustrated is, although the FX of social security card and identity card has identical feelings
Condition (all includes national emblem region and user's head portrait), however, two cards FX (including：National emblem region and use account
Picture) size, size and particular location differ.
It should be noted that because when being scanned to card, the placement direction of card can be arbitrary, for example,
Card can be placed for positive direction, opposite direction is placed or slant setting, when card is slant setting, acquired card figure
As being incline direction, now, the accurate reliability obtained for the ease of FX, card figure that can preferentially to incline direction
As entering line tilt correction processing so that card image can be changed to positive direction, opposite direction, left direction or the right side by incline direction
Side to, can so effectively improve FX acquisition levels of precision.
S102：In FX, the characteristic value of the sign FX characteristic on card image is obtained；
After FX is got, the sign FX in FX on card image can be further obtained
The characteristic value of characteristic, the characteristic value for characterizing FX characteristic is based on can characterize acquired in FX image pixel information
The parameter value of the FX particular community, for example, the black-white point quantity in the FX, or based on the FX
Middle black-white point quantity calculates obtained image luminance information or image boundary information etc., as long as can by these parameter values
To find the FX on card；Wherein, black-white point quantity is characterized the characteristic point quantity of mark, this feature point quantity
Can for pixel quantity or pixel value etc., now, then can be by the pixel in FX or pixel value
Analysis calculates to obtain the black-white point quantity on card image.
Further, in order to ensure FX characteristic characteristic value obtain accurate reliability, obtain card image
On FX characteristic characteristic value before, this method can also include：Using the processing method pre-set to card figure
As being pre-processed, to remove the interference data in card image.
Wherein, the above-mentioned processing method pre-set can be closing operation of mathematical morphology of the prior art, i.e., after first expanding
Corrosion, is pre-processed to card image by above-mentioned closing operation of mathematical morphology algorithm, can retain the characteristic point on card image,
Interference data are removed, so that the accurate reliability that the characteristic value for being effectively guaranteed FX characteristic is obtained.
S103：The placement direction of card is identified according to FX and the characteristic value for characterizing FX characteristic；
In order to express easily, hereafter using black-white point quantity as characterize FX characteristic characteristic value exemplified by illustrated
Property explanation, other specification as characterize FX characteristic characteristic value situation it is also similar, repeat no more below.Getting
After FX and black-white point quantity, the analysis accuracy of judgement identification card to FX and black-white point quantity can be passed through
Placement direction, it is ensured that card placement direction identification accurate reliability；Wherein, the placement direction of card can include：Just
Direction is placed, opposite direction is placed, left direction is placed and right direction is placed, and above-mentioned the provided noun of locality is beaten with user
What the visual angle of print card was determined, that is, when user has printer card demand, the card that positive direction is placed is printed
Correct images required for the card image exactly user come.
The recognition methods for the card placement direction that the present embodiment is provided, by obtain FX on card image and
Black-white point quantity in FX, is then analyzed and processed to FX and black-white point quantity, can be effective
The placement direction of ground identification card, it is to avoid put using optical character identification mode complex in the prior art to card
Put direction to be identified, simplify identifying processing flow, and identification process is simple, easily realize, while also having higher knowledge
Rate, so as to improve the practicality of the recognition methods, is not conducive to the popularization and application in market.
Fig. 2 is the characteristic value provided in an embodiment of the present invention according to the FX and sign FX characteristic to institute
State the schematic flow sheet that the placement direction of card is identified；, can with continued reference to accompanying drawing 1-2 on the basis of above-described embodiment
Know, the present embodiment is for the placement direction of card is identified according to FX and black-white point quantity specific implementation
Do not limit, those skilled in the art can be configured according to specific design requirement, more preferred, can be by according to solid
Determine region and black-white point quantity is identified to the placement direction of card and is set to include：
If FX matches with the reference direction FX pre-set, and black-white point quantity and pre-sets
Reference direction black-white point quantity matches, then will be predetermined corresponding to reference direction FX, reference direction black-white point quantity
Confirm as the placement direction of card in direction；Wherein, above-mentioned predetermined direction can include positive direction, opposite direction, left direction and
Right direction, therefore, the step can specifically include：
S1031：If FX matches with the positive FX of the standard that pre-sets, and black-white point quantity with advance
The positive black-white point quantity of the standard of setting matches, then by corresponding to the positive FX of standard, the positive black-white point quantity of standard
Positive direction confirm as the placement direction of card；Or,
, can be by FX and all types pre-set card after FX and black-white point quantity is got
Multiple standard FX corresponding to piece carry out analysis contrast, by black-white point quantity and all types card institute pre-set
Corresponding multiple standard black-white point quantity carry out analysis contrast；Above-mentioned multiple standard FX include：Standard forward direction fixed area
Domain, the reverse FX of standard, standard left side laterally secure region to FX and standard right；Above-mentioned multiple standard black and white
Point quantity includes：Standard forward direction black-white point quantity, the reverse black-white point quantity of standard, on the left of standard to black-white point quantity and standard
Right side is to black-white point quantity；It should be noted that above-mentioned standard black-white point quantity can be a concrete numerical value or one
Numerical intervals, if standard black-white point quantity is a numerical intervals, then several black and white can be included in the numerical intervals
The numerical value of point quantity.
When the result of analysis contrast matches for the positive FX of FX and standard, card can be now judged substantially
The placement direction of piece is positive direction, and in order to be further ensured that the accurate reliability recognized to card placement direction, black and white is counted
Amount carries out analysis contrast with the positive black-white point quantity of standard, if black-white point quantity matches with the positive black-white point quantity of standard,
The positive direction corresponding to the positive FX of standard, the positive black-white point quantity of standard accurately and efficiently can be confirmed as into card
Placement direction；Wherein, it is above-mentioned to match and include：Identical or identical degree ratio is more than or equal to advance
The proportion threshold value of setting.
S1032：If FX matches with the reverse FX of the standard pre-set, and black-white point quantity with advance
The reverse black-white point quantity of standard of setting matches, then by corresponding to the reverse FX of standard, the reverse black-white point quantity of standard
Opposite direction confirm as the placement direction of card；Or,
When the result of analysis contrast matches for FX with the reverse FX of standard, card can be now judged substantially
The placement direction of piece is opposite direction, and in order to be further ensured that the accurate reliability recognized to card placement direction, black and white is counted
Amount carries out analysis contrast with the reverse black-white point quantity of standard, if black-white point quantity matches with the reverse black-white point quantity of standard,
The opposite direction corresponding to the reverse FX of standard, the reverse black-white point quantity of standard accurately and efficiently can be confirmed as into card
Placement direction.
S1033：If FX on the left of the standard that pre-sets to FX with matching, and black-white point quantity with it is pre-
Match on the left of the standard first set to black-white point quantity, then will be counted on the left of standard to FX, standard left side to black and white
The corresponding left direction of amount confirms the placement direction of card；Or,
When the result of analysis contrast matches for FX with standard left side to FX, it can now judge substantially
The placement direction of card is left direction, in order to be further ensured that the accurate reliability recognized to card placement direction, by black and white
Analysis contrast is carried out to black-white point quantity on the left of point quantity and standard, if black-white point quantity and standard left side are to black-white point quantity phase
Matching, then can be accurately and efficiently by the left side side on the left of standard to FX, standard left side corresponding to black-white point quantity
To the placement direction for confirming as card.
S1034：Match if FX laterallys secure region with the standard right pre-set, and black-white point quantity with it is pre-
The lateral black-white point quantity of standard right first set matches, then standard right is laterallyd secure into region, the lateral black and white of standard right counts
The corresponding right direction of amount confirms the placement direction of card.
Match when the result of analysis contrast laterallys secure region for FX with standard right, can now judge substantially
The placement direction of card is right direction, in order to be further ensured that the accurate reliability recognized to card placement direction, by black and white
Point quantity carries out analysis contrast with the lateral black-white point quantity of standard right, if black-white point quantity and the lateral black-white point quantity phase of standard right
Matching, then accurately and efficiently can laterally secure region, the right side side corresponding to the lateral black-white point quantity of standard right by standard right
To the placement direction for confirming as card.
By the way that FX, black-white point quantity and the standard FX pre-set, standard black-white point quantity are carried out
Analysis contrast after, can accurately and efficiently identify the placement direction of card, it is ensured that the recognition methods use it is accurate can
By property.
It should be noted that above-mentioned steps S1031-S1034 is only used as sign FX characteristic using black-white point quantity
Schematically illustrated exemplified by characteristic value, other specification is also similar as the situation for the characteristic value for characterizing FX characteristic, no
Repeat again.
A kind of schematic flow sheet of the recognition methods for card placement direction that Fig. 3 provides for another embodiment of the present invention；Fig. 4
A kind of schematic flow sheet of the recognition methods of the card placement direction provided for further embodiment of this invention；In above-described embodiment
On the basis of, understood with continued reference to accompanying drawing 3-4, after being identified and finishing to the placement direction of card, user is to card for convenience
Piece is duplicated, printing, can be set to method also to include after confirming the placement direction of card for opposite direction：
S201：Mirror image processing is carried out to card image, to cause the display direction of card image to be changed to positive direction；
It is aobvious due to now card image as shown in Fig. 8 .12 when it is opposite direction to confirm the display direction of card image
Show and printed required for direction and user or the correct images of copying operation differ 180 °, therefore, it can enter card image
Row mirror image processing, so that the display direction of card image is changed to positive direction by opposite direction, as shown in Fig. 7,11.
S202：Export the card image after mirror image processing.
It is changed to by the display direction of card image after positive direction, now can directly exports card image, and
The card image now exported is also the correct images of positive direction, the as printing required for user or copying operation.
When the display direction of card image is opposite direction, by carrying out mirror image processing to card image so that card figure
The display direction of picture is changed to positive direction by opposite direction, so that effectively facilitate user is printed or duplicated behaviour to card
Make, further increase the convenient and reliable property that the recognition methods is used.
Or, after confirming the placement direction of card for left direction/right direction, method is set to also to include：
S301：Rotation processing is carried out to card image, to cause the display direction of card image to be changed to positive direction；
When it is left direction/right direction to confirm the display direction of card image, due to the display of now card image
Printed required for direction and user or the positive direction version of copying operation differs 90 °, therefore, it can to card image progress
Rotation processing, so that the display direction of card image is changed to positive direction by left direction/right direction；Specifically
, when the display direction of card image is left direction, as shown in figure 9, place can be to the right rotated by 90 ° to card image
Reason, so that the display direction of card image is changed to positive direction by left direction, as shown in Figure 7；And when card image
When display direction is right direction, as shown in Figure 10, processing can be rotated by 90 ° to the left to card image, so that card
The display direction of picture is changed to positive direction by right direction, so as to be effectively guaranteed, no matter which kind of card image put in
Direction is put, after treatment, can cause the display direction of card image to be changed to positive direction, as shown in Figure 7.
S302：Export the card image after rotation processing.
When the display direction of card image is left direction/right direction, by carrying out rotation processing to card image,
So that the display direction of card image is changed to positive direction by left direction/right direction, so as to effectively facilitate user couple
Card is printed or copying operation, further increases the convenient and reliable property that the recognition methods is used.
Fig. 5 is the schematic flow sheet of the positive and negative provided in an embodiment of the present invention that card image is determined according to FX；
On the basis of above-described embodiment, understand, in order to further improve the practicality of the recognition methods, obtaining with continued reference to accompanying drawing 5
After FX on card taking picture, method is set to also to include：
S401：The positive and negative of card image is determined according to FX.
Generally, for card image, positive FX is different from the FX of reverse side, therefore,
The positive and negative of card image can be confirmed according to FX；If in addition, according to FX and black-white point quantity to card
Placement direction be identified before, i.e., the positive and negative of card image is determined according to FX, then, according to fixed area
During the placement direction of card is identified for domain and black-white point quantity, the process of analysis contrast, example can be efficiently reduced
Such as, however, it is determined that card image is front, then, can be by fixation when carrying out analysis contrast to FX and black-white point quantity
Region is compared with all types of cards positioned at positive standard FX, by black-white point quantity and all types of cards
Piece is compared positioned at positive standard black-white point quantity, so as to effectively removes FX, black-white point quantity with being located at
Standard FX, the standard black-white point quantity of card reverse side carry out the process of com-parison and analysis；So it is effectively shortened to solid
Determine region and black-white point quantity carries out the time of analysis contrast, further increase the efficiency of the recognition methods.
Specifically, the positive and negative for determining card according to FX can include：
S4011：If FX matches with the standard front face FX pre-set, it is card to confirm card image
The direct picture of piece；Or,
FX and the mark FX pre-set are subjected to analysis contrast, standard FX now includes institute
There are the standard front face FX and standard reverse side FX of type of card；When the result of analysis contrast is：FX with
When standard front face FX matches, then the direct picture that card image is card is can confirm that, wherein, above-mentioned matches
Refer to that FX is identical with standard front face FX.
S4012：If FX matches with the standard reverse side FX pre-set, it is card to confirm card image
The verso images of piece.
When the result of analysis contrast is：When FX matches with standard reverse side FX, then card is can confirm that
Image is the verso images of card, wherein, above-mentioned matching refers to that FX is identical with standard front face FX.
It should be noted that for the definition of the obverse and reverse of card, those skilled in the art can be according to tool
The design requirement of body is configured, for example：For identity card, the one side including national emblem can be referred to as to the front of card,
One side including head portrait and ID card No. is referred to as to the reverse side of card；Or, the one side including national emblem can also be referred to as card
The reverse side of piece, the one side including head portrait and ID card No. is referred to as the front of card；And for different cards,
It has different obverse and reverses, and then also has different positive FX and reverse side FX, therefore, it can lead to
The analyzing and processing to FX is crossed, the obverse and reverse of card is accurately and efficiently determined, so in specific application, can be with
Effectively prevent user from duplicating the situation of printer card, further increase the convenient and reliable property that the recognition methods is used.
Fig. 6 is the schematic flow sheet of the type information of acquisition card provided in an embodiment of the present invention；In above-described embodiment
On the basis of, understand that, in order to further improve the practicality of the recognition methods, the present embodiment sets method with continued reference to accompanying drawing 6
Also to include：
S501：Obtain the type information of card.
Generally, for card image, different types of card has different FX and black-white point
Quantity, therefore, it can before the placement direction of card is identified according to FX and black-white point quantity, obtain card
Type information, then, during the placement direction of card is identified according to FX and black-white point quantity, meeting
Efficiently reduce the process of analysis contrast, for example, however, it is determined that the type information of card is identity card, then to FX and
Black-white point quantity carries out analysis reduced value, can enter the card of FX and identity card positioned at positive standard FX
Row compares, and the card of black-white point quantity and identity card is compared positioned at positive standard black-white point quantity, so that effectively
The standard FX corresponding to FX, black-white point quantity and other types card, standard black-white point quantity is eliminated to enter
The process of row com-parison and analysis；The time that analysis contrast is carried out to FX and black-white point quantity is so effectively shortened, is entered
One step improves the efficiency of the recognition methods.
Specifically, the type information of card is obtained, including：
S5011：Before being scanned to card, the type information of the card of user's input is obtained；Or,
Before being scanned to card, scanning device can send prompt message to user, and user receives prompting letter
After breath, the type information of card can be directly inputted according to the prompt message, or, can also be in the card-like pre-set
The type information of choice cards in type option.
S5012：After FX on card image is obtained, the characteristic information on card image is obtained；
Wherein, above-mentioned characteristic information can include：The colouring information of card, the pattern-information of card, positioned at fixed area
Card image in domain etc.；Obtain the acquisition modes phase of the mode and the FX on above-mentioned acquisition card image of characteristic information
It is similar, specifically refer to above statement content.
S5013：If FX matches with the type FX pre-set, and characteristic information and standard class
Type characteristic information matches, then confirms as the type of card corresponding to type FX, type characteristic information
The type information of the card.
After characteristic information is got, FX and characteristic information can be analyzed and processed, at concrete analysis
The mode of reason is that FX and the type FX of all types of cards are carried out into analysis contrast, by characteristic information
Analysis contrast is carried out with the standard feature information of all types of cards；If analysis comparing result is：FX and standard class
Type FX matches, and characteristic information matches with type characteristic information, then by type FX, standard
Type of card corresponding to type feature information confirms as the type information of the card, wherein, it is above-mentioned match including：Completely
Identical or same degree is more than or equal to the threshold value thresholding pre-set.
By obtaining the type information of card, the practicality of the recognition methods can be effectively improved, and if in basis
Before the placement direction of card is identified for FX and black-white point quantity, the type information of card is obtained, then, in root
During the placement direction of card is identified according to FX and black-white point quantity, analysis contrast can be efficiently reduced
Process, is effectively improved the efficiency of the recognition methods, further ensures the accurate reliability that the recognition methods is used.
In order to more understand the implementation process of the present embodiment technical scheme, below with the positive and negative placement direction to identity card
Illustrate, and preset exemplified by identification：The one side with national emblem is the front of identity card in identity card, such as Fig. 7-8 institutes
Show, wherein, Fig. 7 is the positive positive direction of identity card, and Fig. 8 is the positive opposite direction of identity card；Head portrait and body are carried in identity card
The one side of part card number is the reverse side of identity card, as depicted in figs. 11-12, wherein, Figure 11 is the reverse side positive direction of identity card, Figure 12
For the reverse side opposite direction of identity card；Then the positive and negative placement direction of identity card is identified, specific step is as follows：
Step A：Identity card card is scanned, the FX on card image is got；In order to improve discrimination,
Need before the positive and negative placement direction for carrying out identity card is identified, card image is suitably cut；In addition, to card
The process that image is analyzed and processed includes：When the card image of identity card is front, FX could be arranged to national emblem
Region, the specific mode for obtaining FX as shown in figure 13, two-dimensional coordinate system is set up (i.e. including X-axis and Y along card image
Axle), and will be defined as at a drift angle of card image at the origin of coordinate system, in the two-dimensional coordinate system set up really then
The coordinate information (being C (X0, Y0), the D (X1, Y1) in accompanying drawing 13) in national emblem region is determined, according to above-mentioned coordinate information
The positional information of signature identification national emblem is determined, so that the FX on card image can be obtained；When the card figure of identity card
During as being reverse side, FX could be arranged to head portrait region and ID card No. region, and obtain the mode of FX with
The mode of the above-mentioned positive FX of acquisition is similar, specifically refers to shown in accompanying drawing 14.
Step B：It is determined that after FX, obtaining the black-white point quantity being located on card image in FX；
Step C：Analysis contrast is carried out to FX and black-white point quantity, the positive and negative placement side of identity card card is determined
To；
Specifically, if the positive FX of FX and standard matches, and black-white point quantity and the mark that pre-sets
Quasi- forward direction black-white point quantity matches, then by the positive direction corresponding to the positive FX of standard, the positive black-white point quantity of standard
Confirm as the placement direction of card, now the display direction of card image be printed required for user, duplicate it is correct
Direction, as shown in figure 15；If FX matches with the reverse FX of the standard pre-set, and black-white point quantity with it is pre-
The reverse black-white point quantity of standard first set matches, then the reverse FX of standard, the reverse black-white point quantity institute of standard is right
The opposite direction answered confirms as the placement direction of card, now the display direction of card image be not printed required for user,
The correct direction of duplicating, as shown in figs. 16-17.
Therefore, if user needs to print identity card or copying operation, method can be set to include：
Step D：If the placement direction of card is positive direction, it can directly print and export card image；
Step E：If the placement direction of card is opposite direction, need to carry out mirror image processing to card image so that card
The display direction of image is changed to positive direction by opposite direction, then prints and exports card image, so as to effectively ensure
Output image accessed by user is correct card image.
In addition, during concrete application, before output card image, this method can also include：
Step F：Slant Rectify is carried out to card image, to ensure the output quality of card image；Also, working as needs to one
When individual or multiple card images are printed out, typesetting can also be carried out to one or more card images, specifically, can be with
The type style of choice cards image, to facilitate user to check, is further increased in the multiple typesetting patterns pre-set
The practicality of this method.
The technical scheme that the present embodiment is provided only carries out judgement by FX and black-white point quantity to be confirmed
The positive and negative placement direction of identity card, it is to avoid the complex process in Character segmentation direction is carried out using OCR；And above-mentioned black and white points
Amount can be by hardware handles with regard to energy quick obtaining, and processing speed faster, is effectively guaranteed the practicality of the recognition methods, had
Beneficial to the popularization and application in market.
Figure 18 is a kind of structural representation of the identifying device of card placement direction provided in an embodiment of the present invention, with reference to attached
Figure 18 is understood, present embodiments provides a kind of identifying device of card placement direction, and the identifying device is used for the placement to card
Direction is effectively recognized, specifically, the device includes：
Scan module 1, for being scanned to card, obtains the FX on card image；
Wherein, scan module 1 can be for that can include sensor, by set in scanner, and scanner
Sensor can get the FX on card image.
Acquisition module 2, in FX, obtaining the characteristic value of the sign FX characteristic on card image,
The characteristic value for characterizing FX characteristic is based on can characterize the FX acquired in FX image pixel information
The parameter value of particular community, for example, the black-white point quantity in the FX, or based on black-white point quantity in the FX
Obtained image luminance information or image boundary information etc. are calculated, as long as can be found by these parameter values on card
FX；In order to express easily, the present embodiment is used as the characteristic value for characterizing FX characteristic using black-white point quantity
Exemplified by schematically illustrated, other specification as characterize FX characteristic characteristic value situation it is also similar, below no longer
Repeat；
Processing module 3, for the placement direction of card to be identified according to FX and black-white point quantity；
In order to ensure the processing module 3 in the accurate reliability of black-white point quantity acquisition, the present embodiment, it is additionally operable to obtaining
Before black-white point quantity on card image, card image is pre-processed using the processing method pre-set, to remove
Interference data in card image.
Wherein, FX is characterized positional information of the mark in card image, and black-white point quantity is characterized mark
Characteristic point quantity.
The present embodiment provide card placement direction identifying device concrete principle and implementation with shown in Fig. 1
Embodiment is similar, and here is omitted.
The identifying device for the card placement direction that the present embodiment is provided, card is obtained by scan module 1 and acquisition module 2
FX on image and the black-white point quantity in FX, and post-processing module 3 is to FX and black
White point quantity is analyzed and processed, and can efficiently identify the placement direction of card, it is to avoid using complex in the prior art
Optical character identification mode be identified come the placement direction to card, simplify identifying processing flow, and identification process letter
Single, easily realization, while also having higher discrimination, so as to improve the practicality of the identifying device, is conducive to market
Promote and application.
On the basis of above-described embodiment, understand that the present embodiment is for processing module 3 according to fixation with continued reference to accompanying drawing 18
Region and black-white point quantity are not limited the specific implementation that the placement direction of card is identified, those skilled in the art
It can be configured according to specific design requirement, more preferred, processing module 3 is used for：If FX is with pre-setting
Reference direction FX match, and black-white point quantity matches with the reference direction black-white point quantity that pre-sets, then
Predetermined direction corresponding to reference direction FX, reference direction black-white point quantity is confirmed as to the placement direction of card；Its
In, above-mentioned predetermined direction can include positive direction, opposite direction, left direction and right direction.
Specifically, the processing module 3 is used for：If FX matches with the positive FX of the standard pre-set,
And black-white point quantity matches with the positive black-white point quantity of the standard that pre-sets, then by the positive FX of standard, standard just
Positive direction corresponding to black-white point quantity confirms as the placement direction of card；Or, if FX and the mark pre-set
Accurate reversely FX matches, and black-white point quantity and the reverse black-white point quantity of standard that pre-sets match, then will mark
Opposite direction corresponding to accurate reversely FX, the reverse black-white point quantity of standard confirms as the placement direction of card；Or, if solid
Determine region with matching on the left of the standard that pre-sets to FX, and on the left of black-white point quantity and the standard that pre-sets to
Black-white point quantity matches, then by the left direction on the left of standard to FX, standard left side corresponding to black-white point quantity
Confirm the placement direction of card；Or, match if FX laterallys secure region with the standard right pre-set, and black and white
Point quantity matches with the lateral black-white point quantity of standard right pre-set, then standard right is laterallyd secure into region, standard right side
Right direction corresponding to black-white point quantity confirms the placement direction of card.
The present embodiment provide card placement direction identifying device concrete principle and implementation with shown in Fig. 2
Embodiment is similar, and here is omitted.
By processing module 3 by FX, black-white point quantity and pre-set standard FX, standard black-white point
Quantity is carried out after analysis contrast, can accurately and efficiently identify the placement direction of card, it is ensured that the identifying device is used
Accurate reliability.
On the basis of above-described embodiment, understand, be identified in the placement direction to card with continued reference to accompanying drawing 18
Bi Hou, for convenience user card is duplicated, printing, processing module 3, be additionally operable to confirm card placement direction
After opposite direction, mirror image processing is carried out to card image, to cause the display direction of card image to be changed to positive direction；
Device also includes：Output module 4, for exporting the card image after mirror image processing.
Or, processing module 3 is additionally operable to after confirming the placement direction of card for left direction/right direction, to card
Picture carries out rotation processing, to cause the display direction of card image to be changed to positive direction；
Device also includes：Output module 4, for exporting the card image after rotation processing.
The concrete principle of identifying device of the card placement direction that the present embodiment is provided, implementation and beneficial effect are equal
Similar with the embodiment shown in Fig. 3-Fig. 4, here is omitted.
On the basis of above-described embodiment, understood with continued reference to accompanying drawing 18, in order to further improve the reality of the identifying device
With property, the processing module 3 in the present embodiment is additionally operable to after the FX on card image is obtained, true according to FX
Determine the positive and negative of card image.
Specifically, processing module 3, is used for：If FX matches with the standard front face FX pre-set,
Confirm the direct picture that card image is card；Or, if FX and the standard reverse side FX phase pre-set
Match somebody with somebody, then confirm the verso images that card image is card.
The concrete principle of identifying device of the card placement direction that the present embodiment is provided, implementation and beneficial effect are equal
Similar with the embodiment shown in Fig. 5, here is omitted.
On the basis of above-described embodiment, understood with continued reference to accompanying drawing 18, in order to further improve the reality of the identifying device
With property, the acquisition module 3 in the present embodiment is additionally operable to obtain the type information of card.
Specifically, acquisition module 3, is used for：Before being scanned to card, the type letter of the card of user's input is obtained
Breath；Or, after the FX on card image is obtained, obtain the characteristic information on card image；If FX with
The type FX pre-set matches, and characteristic information matches with type characteristic information, then by standard
Type of card corresponding to type FX, type characteristic information confirms as the type information of the card.
The concrete principle of identifying device of the card placement direction that the present embodiment is provided, implementation and beneficial effect are equal
Similar with the embodiment shown in Fig. 6-15, here is omitted.
The technical scheme that the present embodiment is provided only carries out judgement by FX and black-white point quantity to be confirmed
The positive and negative placement direction of identity card, it is to avoid the complex process in Character segmentation direction is carried out using OCR；And above-mentioned black and white points
Amount can be by hardware handles with regard to energy quick obtaining, and processing speed faster, is effectively guaranteed the practicality of the identifying device, had
Beneficial to the popularization and application in market.
Figure 19 is a kind of structural representation of image processing apparatus provided in an embodiment of the present invention.Shown in refer to the attached drawing 19,
The another aspect of the present embodiment provides a kind of image processing apparatus 100, including the card described in any one above-mentioned embodiment
The identifying device 101 of placement direction, wherein, the operation principle of identifying device 101 and the function realized are referring to foregoing
Description in embodiment, will not be repeated here.
Wherein, the image processing apparatus 100 can be scanner, the printer with scan function or duplicator etc.
Deng, and the image processing apparatus 100 includes the output module in above-mentioned identifying device 101, and the output module can be by electronics
Document export to application apparatus (including：Smart mobile phone, PC PC, tablet personal computer etc.) place, or, can also be by electronics text
Part is directly output as paper document.
The image processing apparatus 100 that the present embodiment is provided, only passes through the identifying device 101 of set card placement direction
FX and black-white point quantity are carried out to judge that the positive and negative placement direction of identity card can be confirmed, it is to avoid using OCR enter
Line character splits the complex process in direction；And above-mentioned black-white point quantity can be by hardware handles with regard to energy quick obtaining, place
Manage speed faster, be effectively guaranteed the practicality of the image processing apparatus 100, be conducive to the popularization and application in market.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (13)
1. a kind of recognition methods of card placement direction, it is characterised in that including：
Card is scanned, the FX on card image is obtained；
In the FX, the characteristic value that the FX characteristic is characterized on the card image is obtained；
The placement direction of the card is known according to the FX and the characteristic value for characterizing the FX characteristic
Not；
Wherein, the FX is characterized positional information of the mark in the card image, characterizes the FX special
Property characteristic value be based on the FX particular community of characterizing acquired in the FX image pixel information
Parameter value.
2. according to the method described in claim 1, it is characterised in that special according to the FX and the sign FX
The placement direction of the card is identified the characteristic value of property, including：
If the FX matches with the reference direction FX pre-set, and characterizes the FX characteristic
Characteristic value matches with the reference direction characteristic value pre-set, then by the reference direction FX, reference direction feature
The corresponding predetermined direction of value confirms as the placement direction of the card；
Wherein, the predetermined direction includes positive direction, opposite direction, left direction and right direction.
3. method according to claim 2, it is characterised in that methods described also includes：
After confirming the placement direction of the card for opposite direction, mirror image processing is carried out to the card image, to cause
The display direction for stating card image is changed to positive direction；
Export the card image after mirror image processing.
4. method according to claim 2, it is characterised in that methods described also includes：
After confirming the placement direction of the card for left direction/right direction, the card image is carried out at rotation
Reason, to cause the display direction of the card image to be changed to positive direction；
Export the card image after rotation processing.
5. the method according to any one in claim 1-4, it is characterised in that the fixed area on card image is obtained
After domain, methods described also includes：
If the FX matches with the standard front face FX pre-set, it is card to confirm the card image
Direct picture；Or,
If the FX matches with the standard reverse side FX pre-set, it is card to confirm the card image
Verso images.
6. the method according to any one in claim 1-4, it is characterised in that methods described also includes：
Before being scanned to card, the type information of the card of user's input is obtained；Or,
After FX on card image is obtained, the characteristic information on the card image is obtained；
If the FX matches with the type FX pre-set, and the characteristic information and type
Characteristic information matches, then confirms the type of card corresponding to the type FX, type characteristic information
For the type information of the card.
7. a kind of identifying device of card placement direction, it is characterised in that including：
Scan module, for being scanned to card, obtains the FX on card image；
Acquisition module, in the FX, obtaining the sign FX characteristic on the card image
Characteristic value；
Processing module, for being put according to the characteristic value of the FX and the sign FX characteristic to the card
Direction is put to be identified；
Wherein, the FX is characterized positional information of the mark in the card image, characterizes the FX special
Property characteristic value be based on the FX particular community of characterizing acquired in the FX image pixel information
Parameter value.
8. device according to claim 7, it is characterised in that the processing module, is used for：
If the FX matches with the reference direction FX pre-set, and characterizes the FX characteristic
Characteristic value matches with the reference direction characteristic value pre-set, then by the reference direction FX, reference direction feature
The corresponding predetermined direction of value confirms as the placement direction of the card；
Wherein, the predetermined direction includes positive direction, opposite direction, left direction and right direction.
9. device according to claim 8, it is characterised in that
The processing module, is additionally operable to after confirming the placement direction of the card for opposite direction, the card image is entered
Row mirror image processing, to cause the display direction of the card image to be changed to positive direction；
Described device also includes：
Output module, for exporting the card image after mirror image processing.
10. device according to claim 8, it is characterised in that
The processing module, is additionally operable to after confirming the placement direction of the card for left direction/right direction, to described
Card image carries out rotation processing, to cause the display direction of the card image to be changed to positive direction；
Described device also includes：
Output module, for exporting the card image after rotation processing.
11. device according to any one of claims of claim 7-10, it is characterised in that the processing module, is additionally operable to：
After FX on acquisition card image,
If the FX matches with the standard front face FX pre-set, it is card to confirm the card image
Direct picture；Or,
If the FX matches with the standard reverse side FX pre-set, it is card to confirm the card image
Verso images.
12. device according to any one of claims of claim 7-10, it is characterised in that the acquisition module, is additionally operable to：
Before being scanned to card, the type information of the card of user's input is obtained；Or,
After FX on card image is obtained, the characteristic information on the card image is obtained；
If the FX matches with the type FX pre-set, and the characteristic information and type
Characteristic information matches, then confirms the type of card corresponding to the type FX, type characteristic information
For the type information of the card.
13. a kind of image processing apparatus, it is characterised in that including the card placement side described in any one in claim 7-12
To identifying device.
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|---|---|---|---|
| CN201710321533.3A CN107194397A (en) | 2017-05-09 | 2017-05-09 | Recognition methods, device and the image processing apparatus of card placement direction |
| CN201810317453.5A CN108564081A (en) | 2017-05-09 | 2018-04-10 | Recognition methods, device and the image processing apparatus of card placement direction |
| PCT/CN2018/082538 WO2018205789A1 (en) | 2017-05-09 | 2018-04-10 | Method and apparatus for recognizing card placement direction, and image processing apparatus |
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| CN201710321533.3A CN107194397A (en) | 2017-05-09 | 2017-05-09 | Recognition methods, device and the image processing apparatus of card placement direction |
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| CN201810317453.5A Pending CN108564081A (en) | 2017-05-09 | 2018-04-10 | Recognition methods, device and the image processing apparatus of card placement direction |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018205789A1 (en) * | 2017-05-09 | 2018-11-15 | 珠海赛纳打印科技股份有限公司 | Method and apparatus for recognizing card placement direction, and image processing apparatus |
| CN110223398A (en) * | 2019-06-12 | 2019-09-10 | 浙江机电职业技术学院 | A kind of Subway Automatic Fare Collection System and method |
| CN110991451A (en) * | 2019-11-01 | 2020-04-10 | 珠海奔图电子有限公司 | Method and device for correcting card area image of scanned image |
| CN111882615A (en) * | 2020-07-30 | 2020-11-03 | 珠海市新德汇信息技术有限公司 | Card direction identification method and device based on characteristic color blocks and self-service equipment |
| CN111881810A (en) * | 2020-07-23 | 2020-11-03 | 前海人寿保险股份有限公司 | Certificate recognition method, device, terminal and storage medium based on OCR |
| CN117173391A (en) * | 2023-11-02 | 2023-12-05 | 广东省建筑设计研究院有限公司 | Oblique image correction method and system based on deep learning and multi-view geometry |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111186215B (en) * | 2018-11-15 | 2021-01-29 | 苏州苏大维格科技集团股份有限公司 | Laser printing system and printing method thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100247970B1 (en) * | 1997-07-15 | 2000-03-15 | 윤종용 | Direction correction method of document image |
| JP2001043310A (en) * | 1999-07-30 | 2001-02-16 | Fujitsu Ltd | Device and method for correcting document picture |
| CN1422068A (en) * | 2001-11-23 | 2003-06-04 | 力捷电脑股份有限公司 | Scanning method |
| US7679777B2 (en) * | 2005-05-03 | 2010-03-16 | Xerox Corporation | Job supplement for electronic printing machines |
| CN101639933B (en) * | 2009-07-16 | 2013-03-27 | 上海合合信息科技发展有限公司 | Image rotation correction method and system and electronic device |
| CN102930265B (en) * | 2012-09-19 | 2015-07-29 | 广州市中崎商业机器有限公司 | A kind of many I.D.s scan method and device |
| CN105528602A (en) * | 2015-10-30 | 2016-04-27 | 小米科技有限责任公司 | Region identification method and device |
| CN106295638B (en) * | 2016-07-29 | 2019-10-15 | 北京小米移动软件有限公司 | Certificate image sloped correcting method and device |
| CN106548171A (en) * | 2016-09-22 | 2017-03-29 | 青岛海信电器股份有限公司 | Method, apparatus and system of a kind of image from dynamic(al) correction |
| CN107194397A (en) * | 2017-05-09 | 2017-09-22 | 珠海赛纳打印科技股份有限公司 | Recognition methods, device and the image processing apparatus of card placement direction |
-
2017
- 2017-05-09 CN CN201710321533.3A patent/CN107194397A/en active Pending
-
2018
- 2018-04-10 CN CN201810317453.5A patent/CN108564081A/en active Pending
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| WO2018205789A1 (en) * | 2017-05-09 | 2018-11-15 | 珠海赛纳打印科技股份有限公司 | Method and apparatus for recognizing card placement direction, and image processing apparatus |
| CN110223398A (en) * | 2019-06-12 | 2019-09-10 | 浙江机电职业技术学院 | A kind of Subway Automatic Fare Collection System and method |
| CN110991451A (en) * | 2019-11-01 | 2020-04-10 | 珠海奔图电子有限公司 | Method and device for correcting card area image of scanned image |
| CN111881810A (en) * | 2020-07-23 | 2020-11-03 | 前海人寿保险股份有限公司 | Certificate recognition method, device, terminal and storage medium based on OCR |
| CN111881810B (en) * | 2020-07-23 | 2024-03-29 | 前海人寿保险股份有限公司 | Certificate identification method, device, terminal and storage medium based on OCR |
| CN111882615A (en) * | 2020-07-30 | 2020-11-03 | 珠海市新德汇信息技术有限公司 | Card direction identification method and device based on characteristic color blocks and self-service equipment |
| CN111882615B (en) * | 2020-07-30 | 2024-03-12 | 珠海市新德汇信息技术有限公司 | Card direction identification method and device based on characteristic color block and self-service equipment |
| CN117173391A (en) * | 2023-11-02 | 2023-12-05 | 广东省建筑设计研究院有限公司 | Oblique image correction method and system based on deep learning and multi-view geometry |
| CN117173391B (en) * | 2023-11-02 | 2024-03-19 | 广东省建筑设计研究院有限公司 | Oblique image correction method and system based on deep learning and multi-view geometry |
Also Published As
| Publication number | Publication date |
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| WO2018205789A1 (en) | 2018-11-15 |
| CN108564081A (en) | 2018-09-21 |
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