WO2017028663A1

WO2017028663A1 - Method and system for aligning and scanning two-dimensional code

Info

Publication number: WO2017028663A1
Application number: PCT/CN2016/091906
Authority: WO
Inventors: 蒋锦扬; 叶芳耀
Original assignee: 福建联迪商用设备有限公司
Priority date: 2015-08-14
Filing date: 2016-07-27
Publication date: 2017-02-23
Also published as: CN105069391A

Abstract

Disclosed are a method and device for aligning and scanning a two-dimensional code, wherein the method comprises the following steps: S1:a camera aligning a two-dimensional code by means of a guidance lamp; S2:scanning the two-dimensional code, acquiring a scanned image, and sending same to an image processing module by means of a sensor; and S3:the image processing module processing and decoding the scanned image. By means of the method, the present invention is capable of realizing alignment and scanning, so as to acquire complete two-dimensional code information, and the operation is convenient.

Description

Instruction manual

Invention name: two-dimensional code alignment scanning method and device

[0001] The present invention relates to a method and apparatus for two-dimensional code alignment scanning.

Background technique

[0002] With the rapid development of e-commerce, the demand for e-commerce to directly use POS machines for transactions is also increasing. On the POS machines used by e-commerce, in order to facilitate e-commerce transactions, the functional requirements for tag identification on POS are also higher. Plus strong. Although some POSs have a QR code scanning function, they can only be guided by the light after scanning. In the strong light, the guiding light is covered, which makes it impossible to accurately locate, and scans the demand on the mobile phone. The lighting guidelines also affect the scanning effect.

technical problem

[0003] The technical problem to be solved by the present invention is: by guiding the guiding function of the lamp, realizing the alignment scanning of the two-dimensional code to obtain the complete two-dimensional code information.

Problem solution

Technical solution

[0004] In order to solve the above technical problem, the technical solution adopted by the present invention is: Providing a method for two-dimensional code alignment scanning, comprising:

[0005] S1: the camera is aligned with the two-dimensional code by the indicator light;

[0006] S2: scanning the two-dimensional code, acquiring a scanned image, and transmitting the image to the image processing module through the sensor;

S0007: The image processing module processes and decodes the scanned image.

[0008] In order to solve the above technical problem, the technical solution adopted by the present invention is: Providing a device for two-dimensional code alignment scanning, comprising: a camera, a guiding light, a sensor, and an image processing module; wherein

[0009] a guide light is used to guide the position of the two-dimensional code;

[ooio] The camera is aimed at the QR code through the finger bow I light;

[0011] scanning the two-dimensional code, acquiring a scanned image, and transmitting to the image processing module through the sensor;

[0012] The image processing module processes and decodes the scanned image.

Advantageous effects of the invention Beneficial effect

[0013] The beneficial effects of the present invention are as follows: Different from the prior art, the present invention guides the camera to position the two-dimensional code by guiding the light to realize the alignment scanning to obtain the complete two-dimensional code information, and the operation is convenient.

Brief description of the drawing

DRAWINGS

1 is a schematic flow chart of Embodiment 1 of a method according to the present invention;

2 is a schematic flowchart of Embodiment 2 of a method according to the present invention;

3 is a structural block diagram of a third embodiment of the apparatus according to the present invention;

4 is a structural block diagram of a third embodiment of the apparatus according to the present invention.

detailed description

[0018] The most critical idea of the present invention is to scan the camera by guiding the camera to align the two-dimensional code.

Referring to FIG. 1, a first embodiment of the present invention provides a method for two-dimensional code alignment scanning, which includes the following steps.

[0020] S1: the camera is aligned with the two-dimensional code by the indicator light;

[0021] S2: scanning the two-dimensional code, acquiring a scanned image, and transmitting the image to the image processing module through the sensor;

[0022] S3: The image processing module processes and decodes the scanned image.

[0023]

[0024] As shown in FIG. 2, before the step S1, the second embodiment of the present invention further includes:

[0025] S01: connecting the camera and the image processing module to the sensor respectively;

[0026] S02: Integrating the indicator light on the camera.

[0027] Generally, the image processing module may be a CPU. In the actual design and production process, high-performance sensors can be used with HD lenses to connect the sensors directly to the CPU of the product through the CSI interface or MIPI interface.

[0028] The high-definition camera can be integrated with the indicator light, and the indicator light is used to guide the scanning position, that is, after the indicator light is turned on, according to the illumination range of the guidance light, the camera synchronization moves to obtain the specific position of the two-dimensional code, and Preferably, the distance between the indicator light and the two-dimensional code and the focal length of the indicator light can be adjusted, so that the entire two-dimensional code is included in the illumination range of the guidance light to obtain complete two-dimensional code information. Integrated guide light in the camera , can reduce the size of the entire device, and achieve miniaturization. In another embodiment, the indicator light can be set separately from the camera, and only needs to ensure that the two move synchronously.

[0029] wherein, after step S02, the method further includes:

[0030] S03: Integrating a fill light on the camera.

[0031] The fill light is used to supplement the low illumination environment to improve the brightness of the picture. As mentioned above, the fill light is integrated into the camera, which is also considered for the miniaturization of the device. In other cases, the fill light can be set separately from the camera. It is only necessary to ensure that the fill light can complement the two-dimensional code so that the camera can obtain enough light intensity.

[0032] wherein, after step S2, the method further includes:

[0033] S21: the image processing module sends the scanned image to the display module;

[0034] S22: the camera acquires an alignment correction instruction of the scanned image by using the display module;

[0035] Returning to step S of execution.

Specifically, in the embodiment of the present invention, the two-dimensional code scanning function is implemented, and the image is continuously sent to the system CPU through the sensor, and the CPU performs image processing and decoding, and sends a prompt after the decoding succeeds.

[0037] When the sensor sends the image to the CPU, the CPU can send the image to the display screen for display, for the user to align the correction, and the camera corrects the alignment by scanning correction. This can improve accuracy.

[0038] wherein, after step S2, the method further includes:

[0039] S23: the image processing module converts the scanned image into a YUV format;

[0040] S24: determining whether the Y component value is less than a predetermined value;

[0041] If yes, step S25 is performed: controlling the fill light, the indicator light is turned on; and returning to step S2;

[0042] Otherwise, step S21 or S3 is performed.

[0043] If the light intensity is insufficient, and the camera is acquired to obtain the two-dimensional code scan, the fill light can be complemented by setting the fill light. Specifically, according to the scanned image received by the CPU, the image is converted into the YUV format, and the effect of the processing is that the brightness information of the scanned image can be determined by the Y component representing the brightness value, and whether it is lower than a predetermined value, Selectively activate the fill light.

[0044] If the overall Y component value is less than the set value, it indicates that the current decoding state is for the non-self-luminous decoding object, and this time, the fill light and the indicator light need to be used to achieve quick guidance in this state. [0045] If the overall Y component value is greater than the set value, it indicates that the current state is for the self-illuminating object, and this time, the fill light and the indicator light are turned off, and scanning is performed.

[0046] In other embodiments, the camera preview interface may be further opened to achieve a quick guidance by means of preview + alignment.

[0047] In the second embodiment of the present invention, the miniaturization of the device can be realized by integrating the indicator light and/or the fill light on the camera. At the same time, by increasing the preview alignment, a more accurate alignment scan is realized, and in the case of external light intensity, the fill light is scanned to obtain complete QR code information, which is not only convenient to operate, And the user experience has also improved.

[0048]

[0049] Correspondingly, as shown in FIG. 3, the third embodiment of the present invention provides a device 100 for two-dimensional code alignment scanning, including: a camera 110, a pointing light 120, a sensor 130, and an image processing module 140;

[0050] The indicator light 120 is used to guide the position of the two-dimensional code;

[0051] The camera 110 aligns the scanned two-dimensional code by the pointing light 120, and passes the sensor 13 after acquiring the scanned image.

0 is sent to the image processing module 140;

[0052] The image processing module 140 is configured to process and decode the scanned image.

[0053]

As shown in FIG. 4, the sensor 130 in the fourth embodiment of the present invention is respectively connected to the camera 110 and the image processing module 140; and the finger 110 is integrated on the camera 110.

[0055] The device 100 further includes a fill light 150, and the fill light 150 is integrated on the camera 110 for supplementing the light intensity in a low light environment.

[0056] wherein the device 100 further includes a display module 160,

[0057] The display module 160 is configured to display a scanned image sent by the preview image processing module 140;

[0058] The camera 110 acquires an alignment correction instruction of the scanned image through the display module 160.

[0059] The image processing module 140 further includes:

[0060] a converting unit 141, configured to convert the scanned image into a YUV format;

[0061] The determining unit 142 is configured to determine whether the Υ component value is less than a predetermined value.

Claims

Claim

[Claim 1] A method for two-dimensional code alignment scanning, comprising:

S1: The camera is aimed at the two-dimensional code through the indicator light;

S2: Scan the QR code, obtain the scanned image, and send it to the image processing module through the sensor

S3: The image processing module processes and decodes the scanned image.

[Claim 2] The method of two-dimensional code alignment scanning according to claim 1, wherein before step S1, the method includes:

S01: Connect the camera and the image processing module to the sensor respectively; S02: Integrate the indicator light on the camera.

[Claim 3] The method of two-dimensional code alignment scanning according to claim 2, further comprising, after step S02,

S03: Integrate the fill light on the camera.

[Claim 4] The method of two-dimensional code alignment scanning according to claim 1, wherein after step S2, the method further includes:

S21: the image processing module sends the scanned image to the display module;

S22: The camera acquires an alignment correction instruction of the scanned image through the display module; and returns to step S1.

The method of the two-dimensional code alignment scanning according to claim 4, wherein after step S2, the method further comprises:

S23: The image processing module converts the scanned image into a YUV format;

S24: determining whether the Y component value is less than a predetermined value;

If yes, step S25 is performed: controlling the fill light, the indicator light is turned on; and returning to step S2;

Otherwise, step S21 or S3 is performed.

[Claim 6] The apparatus for aligning and scanning a two-dimensional code, comprising: a camera, a pointing light, a sensor, and an image processing module; wherein

The indicator light is used to guide the position of the two-dimensional code; The camera is used to align and scan the two-dimensional code by the indicator light, obtain the scanned image and send it to the image processing module through the sensor;

The image processing module is configured to process and decode the scanned image.

[Claim 7] The apparatus for two-dimensional code alignment scanning according to claim 6, wherein

The sensors are respectively connected to the camera and the image processing module;

A guide light is integrated on the camera.

[Attachment 8] The apparatus for two-dimensional code alignment scanning according to claim 6, further comprising a fill light, wherein the fill light is integrated on the camera for supplementing in a low light environment Light intensity.

[Claim 9] The apparatus for two-dimensional code alignment scanning according to claim 6, further comprising a display module, wherein

The display module is configured to display a scan image sent by the image processing module; the camera acquires an alignment correction instruction of the scanned image through the display module.

The device of the two-dimensional code alignment scanning according to claim 6, wherein the image processing module further comprises:

a conversion unit, configured to convert the scanned image into a YUV format; and a determining unit, configured to determine whether the Y component value is less than a predetermined value.