CN202632311U - Two-dimension code reading device based on video stream - Google Patents
Two-dimension code reading device based on video stream Download PDFInfo
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- CN202632311U CN202632311U CN 201220056143 CN201220056143U CN202632311U CN 202632311 U CN202632311 U CN 202632311U CN 201220056143 CN201220056143 CN 201220056143 CN 201220056143 U CN201220056143 U CN 201220056143U CN 202632311 U CN202632311 U CN 202632311U
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Abstract
The utility model discloses a two-dimension code reading device based on video streams. The two-dimension code reading device based on the video streams includes a video image collecting module and video image processing module. An output terminal of the video image collecting module used for obtaining multiple frames of two-dimension codes are connected with an input terminal of a video image processing module used for processing two-dimension video images. The two-dimension code reading device based on the video streams provided by the utility model adopts a high-speed video digital processing device and can realize frame-by-frame reading processing of multiple frames of images containing two-dimension code information without depending on individual images. Therefore, the accuracy of reading the two-dimension codes is improved. At the same time, the high-speed and real-time two-dimension code reading is realized. Since external manual triggering is not depended, the reading efficiency is improved effectively and the cost of the two-dimension code reading device based on the video streams is reduced.
Description
Technical field
The utility model relates to image recognition technology, is specifically related to a kind of two dimension code reading device based on video flowing.
Background technology
Two-dimensional bar code is called for short two-dimension code (2-dimensional bar code), and what it adopted is that chequered with black and white graphic element comes the record data symbolic information, and graphic element is arranged according to matrix form.Because canned data simultaneously in the horizontal and vertical directions, so quantity of information is very big.On coding, utilize the notion of " 0 " and " 1 " bit stream that constitutes the computer-internal logical foundations dexterously; Use some and the corresponding geometrical body of scale-of-two to represent the literal numerical information, handle automatically with realization information through image input device or photoelectric scanning device automatically identifying and reading.It has some general character of barcode technology: every kind of code system has its specific character set; Each character occupies certain width; Has certain verifying function etc.Also have characteristics simultaneously to automatic function of discerning of the information of different rows and processing image rotation change etc.In the two-dimensional bar code of numerous species, code system commonly used has: Data Matrix, Maxi Code, QR Code, PDF417 or the like.
What in this device, mainly use is the two-dimensional bar code of QR Code coding rule.The QR Code fast response matrix code of expressing one's gratification again is representative two-dimensional bar code, the technical stipulation among the GB GB/T 18284-2000, " each QR code sign be made up of square modules a quadrate array constitute ".The QR code sign has 40 specifications, is respectively version 1, version 2 ... Edition 40.The specification of version 1 is 21 module *, 21 modules, and the specification of version 2 is 25 module *, 25 modules, and the like, each version increases by four modules than the every limit of last version, knows edition 40, and its specification is 177 module *, 117 modules.
Along with the continuous increase of present internet video content and the fast-developing and application of the 3G communication technology, automatically identifying and reading two-dimension code from camera and video file has become a kind of trend trend so that spectators user therefrom obtain information apace.Yet commonplace in the method that at present two-dimension code obtains is to take pictures through camera to obtain.With respect to the mode of taking pictures and obtaining with camera, directly from camera or video file, obtain the method for 2 D code information, more convenient.At Chinese patent: in 200910105475.6 " the obtaining the method and apparatus of the two-dimension code in the video ", disclose the method that a kind of video obtains two-dimension code.This patent is passed through wherein two-dimension code image of the manual sectional drawing mode of operating personnel intercepting then through finding the picture that contains two-dimension code in the video, is carrying out the requirement whether threshold decision meets recognition two-dimension code image information.But do not carry out other disposal routes to obtaining picture owing to just simply carry out threshold decision; The picture recognition rate that possibly obtain exactly is relatively low; And obtaining also need to carry out manual sectional drawing after the two-dimension code image; On this step, possibly also need arrive manually-operated, thereby waste certain manpower and materials.
Summary of the invention
Low in order to overcome in the prior art two-dimension code image discrimination; The deficiency that running cost is high; The utility model provides a kind of two dimension code reading device based on video flowing, and this device does not need external trigger and can realize the high-speed real-time recognition 2 D code information of appearance mess code still less.
For achieving the above object, the technical scheme of the utility model is:
A kind of two dimension code reading device based on video flowing; Comprise video image acquisition module and video image processing module, the output terminal that is used to obtain the video image acquisition module of multiframe two-dimension code is connected with the input end of the video image processing module that is used to handle the two-dimension code video image.
Said video image processing module comprises two-dimension code detecting unit, two-dimension code cutting unit, two-dimension code alignment unit, two-dimension code decoding output unit,
Being used for the output terminal that edge feature information according to the multiframe two-dimension code obtains the two-dimension code detecting unit of image in 2 D code is connected with the input end that is used for image in 2 D code is divided into the two-dimension code cutting unit of bianry image; The output terminal of two-dimension code cutting unit be used for that bianry image is carried out affined transformation and obtain positioning pattern, and the input end of two-dimension code alignment unit that extracts the binary code stream of positioning pattern connects; The output terminal of two-dimension code alignment unit is connected with the input end of two-dimension code decoding output unit.
Said two-dimension code decoding output unit comprises multiframe identification integrated unit and distinguishes output unit as a result; Be used for binary code stream is carried out error correction and decoding, obtain 2 D code information multiframe identification integrated unit output terminal and the recognition that is used for notifying according to multiframe recognition integrated unit as a result the input end of output unit be connected.
Wherein, then will distinguish result notification and distinguish output unit as a result when recognition when output unit satisfies predefined output condition as a result.Predefined output condition is: the sample size of recognition of same two-dimension code reaches preset value, and the acquired information degree of confidence that comprises specific products character information result reaches and pre-sets the letter weights.
Visible by above-mentioned technical scheme; The device of this two dimension code reading based on video flowing of the utility model; Through adopting digital processing device at a high speed; Can obtain video and the multiple image that comprises 2 D code information in the video flowing is pursued frame recognition processing, not rely on individual picture, realize the two dimension code reading of high-speed real-time; Owing to do not rely on external trigger, improve service efficiency simultaneously, reduced equipment cost.
Description of drawings
Fig. 1 is the composition structural representation of the device of two dimension code reading among the utility model embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, to the utility model further explain.
The device of the two dimension code reading that the utility model provides; Integrated being arranged on the high-speed digital signal process chip; It is as shown in Figure 1 that it forms structure; Comprising video image acquisition module and video image processing module, the output terminal that is used to obtain the video image acquisition module of multiframe two-dimension code is connected with the input end of the video image processing module that is used to handle the two-dimension code video image.
Said video image processing module comprises two-dimension code detecting unit, two-dimension code cutting unit, two-dimension code alignment unit, two-dimension code decoding output unit,
Being used for the output terminal that edge feature information according to the multiframe two-dimension code obtains the two-dimension code detecting unit of image in 2 D code is connected with the input end that is used for image in 2 D code is divided into the two-dimension code cutting unit of bianry image; The output terminal of two-dimension code cutting unit be used for that bianry image is carried out affined transformation and obtain positioning pattern, and the input end of two-dimension code alignment unit that extracts the binary code stream of positioning pattern connects; The output terminal of two-dimension code alignment unit is connected with the input end of two-dimension code decoding output unit.
Said two-dimension code decoding output unit comprises multiframe identification integrated unit and distinguishes output unit as a result; Be used for binary code stream is carried out error correction and decoding, obtain 2 D code information multiframe identification integrated unit output terminal and the recognition that is used for notifying according to multiframe recognition integrated unit as a result the input end of output unit be connected.
The two dimension code reading device based on video flowing that provides among the utility model embodiment is the embedded device that is integrated on the high-speed digital signal process chip.At present embodiment; The high-speed digital signal process chip adopts the TMS320DM6446 high-speed digital signal of a Texas Instruments to handle (Digital Signal Processing; DSP) chip; This chip is integrated ARM926 and TMS320C64X+DSP dual core has the high-speed data processing power of 4800MIPS.And the algorithm that this chip is handled the image in 2 D code data can be realized through computer program, and this computer program can be stored in one movably in the storage medium, like flash memory etc.
By above-mentioned visible; The device of the two dimension code reading that the utility model provides through adopting digital processing device at a high speed, can pursue frame recognition to the multiple image that comprises 2 D code information in the video flowing and handle; Do not rely on individual picture, realized the two dimension code reading of high-speed real-time; Owing to do not rely on external trigger, improve the efficient that two-dimension code obtains, distinguishes simultaneously, reduced equipment cost.
Therefore; Understand easily, the preferred embodiment that the above is merely the utility model is not spirit and the protection domain that is used to limit the utility model; Equivalent variations that any those of ordinary skill in the art made or replacement all should be regarded as being encompassed within the protection domain of the utility model.
Claims (1)
1. two dimension code reading device based on video flowing; It is characterized in that comprising video image acquisition module (1) and video image processing module (2), the output terminal that is used to obtain the video image acquisition module (1) of multiframe two-dimension code is connected with the input end of the video image processing module (2) that is used to handle the two-dimension code video image.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220056143 CN202632311U (en) | 2012-02-21 | 2012-02-21 | Two-dimension code reading device based on video stream |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220056143 CN202632311U (en) | 2012-02-21 | 2012-02-21 | Two-dimension code reading device based on video stream |
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| CN202632311U true CN202632311U (en) | 2012-12-26 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104219582A (en) * | 2014-09-02 | 2014-12-17 | 天津云辰科技有限公司 | Method and system for video player to acquire two-dimensional bar code information from videos |
| WO2016000427A1 (en) * | 2014-06-30 | 2016-01-07 | 中兴通讯股份有限公司 | File sharing method and device in video conferencing |
| CN105333864A (en) * | 2015-12-04 | 2016-02-17 | 钦州学院 | Positioning system for positioning movable device |
| CN105609008A (en) * | 2016-02-05 | 2016-05-25 | 中国科学院理化技术研究所 | Control system and control method based on two-dimensional code image |
| CN107872730A (en) * | 2016-09-28 | 2018-04-03 | 法乐第(北京)网络科技有限公司 | The acquisition methods and device of a kind of insertion content in video |
| CN109948394A (en) * | 2019-03-28 | 2019-06-28 | 尤尼泰克(嘉兴)信息技术有限公司 | A kind of acquisition methods of two-dimensional code data carrier |
| CN112307786A (en) * | 2020-10-13 | 2021-02-02 | 上海迅邦电子科技有限公司 | Batch positioning and identifying method for multiple irregular two-dimensional codes |
-
2012
- 2012-02-21 CN CN 201220056143 patent/CN202632311U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016000427A1 (en) * | 2014-06-30 | 2016-01-07 | 中兴通讯股份有限公司 | File sharing method and device in video conferencing |
| CN105282480A (en) * | 2014-06-30 | 2016-01-27 | 三亚中兴软件有限责任公司 | File sharing method and device in video conference |
| CN104219582A (en) * | 2014-09-02 | 2014-12-17 | 天津云辰科技有限公司 | Method and system for video player to acquire two-dimensional bar code information from videos |
| CN104219582B (en) * | 2014-09-02 | 2017-12-19 | 北京钱到到金服科技有限公司 | A kind of video player obtains the method and system of 2 D code information from video |
| CN105333864A (en) * | 2015-12-04 | 2016-02-17 | 钦州学院 | Positioning system for positioning movable device |
| CN105609008A (en) * | 2016-02-05 | 2016-05-25 | 中国科学院理化技术研究所 | Control system and control method based on two-dimensional code image |
| CN107872730A (en) * | 2016-09-28 | 2018-04-03 | 法乐第(北京)网络科技有限公司 | The acquisition methods and device of a kind of insertion content in video |
| CN109948394A (en) * | 2019-03-28 | 2019-06-28 | 尤尼泰克(嘉兴)信息技术有限公司 | A kind of acquisition methods of two-dimensional code data carrier |
| CN112307786A (en) * | 2020-10-13 | 2021-02-02 | 上海迅邦电子科技有限公司 | Batch positioning and identifying method for multiple irregular two-dimensional codes |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20150221 |
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| EXPY | Termination of patent right or utility model |