• Title/Summary/Keyword: 2D barcode

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2D Barcode Detection Algorithm with Multiple Features Combination for a Long Distance Search

  • Pak, Myeongsuk;Kim, Sanghoon
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.1506-1508
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    • 2015
  • A 2D barcode region localization system for the automatic inspection of a long distance logistics objects has been developed. For the successful 2D barcode localization, variance and frequency of the pixel distribution within average 2D barcodes is modeled and the average model of 2D barcode is combined with the corner features detection to localize the final 2D barcode candidates. An automatic 2D barcode localization software was developed with the multiple features mixture method and we tested our system on real camera images of several popular 2D barcode symbologies.

A Digital Watermarking Algorithm Using PIM and 2D Barcode (PIM과 2D 바코드를 이용한 워터마킹 알고리즘)

  • Han Su-Young;Kim Hong-Ryul;Lee Kee-Hee
    • Journal of the Korea Society of Computer and Information
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    • v.10 no.5
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    • pp.103-108
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    • 2005
  • In this Paper, we proposed a novel robust watermarking technique using PIM and 2D barcode for the copyright of the digital images. Because human is impervious to the change in the complex area, the embedding watermark to the selected coefficients using PIM enhances invisibility. A 2D barcode image is used for watermark in this research. The 2D barcode contains more information than conventional ID barcode and includes the error correction algorithm. Therefore the watermarking algorithm using 2D barcode enhances the robustness of watermark. From the experimental results , the proposed algorithm shows better invisibility and robustness performance in a general signal Processing such as JPEG and SPIHT lossy compression.

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A 2-D Barcode Detection Algorithm based on Local Binary Patterns (지역적 이진패턴을 이용한 2차원 바코드 검출 알고리즘)

  • Choi, Young-Kyu
    • Journal of the Semiconductor & Display Technology
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    • v.8 no.2
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    • pp.23-29
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    • 2009
  • To increase the data capacity of one-dimensional symbology, 2D barcodes have been proposed a decade ago. In this paper, a new 2D barcode detection algorithm based on Local Binary Pattern is presented. To locate 2D barcode symbols, a texture analysis scheme based on the Local Binary Pattern is adopted, and a gray-scale projection with sub-pixel operation is utilized to separate the symbol precisely from the input image. Finally, the segmented symbol is normalized using the inverse perspective transformation for the decoding process. The proposed method ensures high performances under various lighting/printing conditions and strong perspective deformations. Experiments show that our method is very robust and efficient in detecting the symbol area for the various types of 2D barcodes.

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A System Realization of the 2D Barcode Electrothermal Printer for Scanner Recognition (스케너 인식에 강한 2차원 바코드 인쇄시스템의 구현)

  • 김영빈;윤호군;류광렬
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.183-186
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    • 2003
  • The system realization of 2D barcode electrothermal printer for the adapted scanner recognition is presented. The 2D barcode leads the horizontal and vertical definition to recognize the scanner being an important part in system. The high definition electrothermal printer of 300dpi resolution used power historic control technique to vertical and horizontal coordinate is realized. The result of experiment is that the system enhances the quality of print image to require recognizing 20 barcode.

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Simplification of Face Image using Cubic Spline Interpolation (Cubic Spline Interpolation을 이용한 얼굴 영상의 단순화)

  • Kim, Jung-Min;Jung, Eun-Kook;Kim, Sun-Shin
    • Journal of the Korean Institute of Intelligent Systems
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    • v.20 no.5
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    • pp.722-727
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    • 2010
  • This paper is presented to study simplification of face image using cubic spline interpolation for a business card with 2D barcode. People often forget business card's owner because business cards don't be included a face picture generally. To solve such problem, many applications have be developed through mobile devices, Internet and so on. But they couldn't caught up with value of existing business card mad by paper. Hence, some methods which can put information on business card using 1D or 2D barcode had suggested. but they couldn't include information like face image or company logo image which have too much data. Therefore, we study the simplification method of face image to encode from a face image to 2D barcode. The simplification method using spline curves defined by feature points which we dotted on face, ears, hair, eyebrows, nose, lips, neck, etc.. on a face area. for experiment, we see real face image and simplified face image made by proposed method after we automatically extract face watch through camera. In experimental results, data of simplified face image was reduced as small as it can be expressed by 2D barcode, and confirmed that it can effectively express features.

A 2-Dimensional Barcode Detection Algorithm based on Block Contrast and Projection (블록 명암대비와 프로젝션에 기반한 2차원 바코드 검출 알고리즘)

  • Choi, Young-Kyu
    • The KIPS Transactions:PartB
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    • v.15B no.4
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    • pp.259-268
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    • 2008
  • In an effort to increase the data capacity of one-dimensional symbology, 2D barcodes have been proposed a decade ago. In this paper, we present an effective 2D barcode detection algorithm from gray-level images, especially for the handheld 2D barcode recognition system. To locate the symbol inside the image, a criteria based on the block contrast is adopted, and a gray-scale projection with sub-pixel operation is utilized to segment the symbol precisely from the region of interest(ROI). Finally, the segmented ROI is normalized using the inverse perspective transformation for the following decoding processes. We also introduce the post-processing steps for decoding the QR-code. The proposed method ensures high performances under various lighting/printing conditions and strong perspective deformations. Experiments shows that our method is very robust and efficient in detecting the code area for the various types of 2D barcodes in real time.

Suggestion for Mobile Tourism Information Supply System' Using RTLS and 2D Barcode (RTLS와 2D 바코드를 응용한 모바일 관광정보 제공 시스템의 구현 방안)

  • Yang, Sung-Soo;Huh, Hyang-Jin;Park, Si-Sa;Jo, Tae-Joong
    • The Journal of the Korea Contents Association
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    • v.7 no.9
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    • pp.81-88
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    • 2007
  • Having been speed development of information delivery using the mobile phone, it is generalization. The Mobile has one of the importance for their information searcher as tool. It is widely recognized that tourism information can be defined as useful and reliable reference which significantly influence the traveler' decision-making. This paper presents pioneer and ongoing study of the method for the pinpionting mobile tourism information system with RTLS, 2D Barcode and mobile phone itself. And, this paper relief that benefit and influence of TCO a view on the business administration points.

A Study On Usage Of the dimension barcode and the RFID based on Ubiquitous (유비쿼터스 환경에서 2차원 바코드 및 RFID 응용에 관한 연구)

  • 김병찬;정성훈;임재홍
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • pp.49-54
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    • 2004
  • Ubiquitous computing support to use various informations through any machine which can connect the computer in any where and any time. Recently barcode and RFID which is improved business model to store large scale information and certify security in on- and off-line internet technology is applied the credit curd and payment service and so on However this technology has serious problem that RFID In this paper, we investigate method used example of 2D barcode and RFID and compare and analysis characteristics of recent technology to solve former problem in Ubiquitous environment.

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A Study on Web-based Real-time Watermarking using 2D Barcode (2D 바코드를 이용한 웹기반 실시간 워터마킹에 관한 연구)

  • Lee, Han-Duck;Lee, Seong-Won;Park, Neungsoo
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.518-519
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    • 2010
  • 워터마킹 기술은 디지털 데이터에 대한 소유권을 보호하기 위한 기술로 다양한 방법이 제시되어 왔다. 본 논문에서는 웹상에서 실시간 워터마킹을 통해 디지털 데이터를 열람하고 있는 사용자의 정보를 열람하고 있는 이미지에 기록하여 무단 복제, 불법 배포 등의 일이 발생하였을 경우 출처를 찾아낼 수 있도록 하는 방법을 제시하였다.

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2D Barcode Detection using Deep learning (딥러닝 기법을 이용한 2차원 바코드 검출)

  • Pak, Myeong-Suk;Kim, Sang-Hoon
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.1001-1002
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    • 2017
  • 2차원 바코드는 1차원 바코드의 데이터 용량의 한계를 극복하여 최근 많이 사용되고 있다. 복잡한 환경에서 바코드의 인식을 위해서는 바코드 영역 검출이 중요한 단계이다. 본 논문에서는 딥러닝 기법을 이용하여 QR코드 검출 시스템을 구현한다. 실험은 실생활에서 카메라로 촬영한 바코드 영상을 이용한다.