• Proceedings of the Korea Information Processing Society Conference
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• 2000.04a
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• pp.1139-1143
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• 2000

세계 각국의 우정사업 기관들은 우편번호에 대한 우편서비스의 질을 향상시키기 위하여 많은 노력을 기울이고 있다. 이의 일환으로 실시하고 있는 "우편번호 바코드 인쇄 제도"는 우편물을 저렴하고 신속.정확히 처리함으로써 우편 이용자들의 욕구를 충족시켜주기 위한 제도이다. 이 제도는 우편을 이용하는 우편번호가 자신의 우편물에 우편번호에 해당하는 흑백의 바코드를 인쇄해서 접수하게 되면 서비스 제공자는 인증절차를 거쳐 합격한 업체에 대해 소정의 요금을 할인해 주는 제도이다. 우리나라도 1998년부터 이 제도를 도입하여 운영 중에 있으며, 1999년도에 개국한 6개의 우편집중국에 대해서도 개국과 함께 이 제도를 시행할 예정으로 있다. 기존에는 소형통상 우편물에 대해서만 이 제도를 적용하였으나 대형통상 우편물인 플랫우편물에 대해서도 적용하도록 하고 있다. 이에 따라, 본 고에서는 우편번호 바코드 인쇄 제도가 소기의 목적을 달성할 수 있도록 플랫우편물에 대해 연구한 내용을 다루었다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.11a
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• pp.3-6
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• 2003

In this study, we analyze the historical data of postal matter amount in korea, various social indexes concerning mail volume and postal data in developed countries. After correlation analysis between some variables, we suggest a new logistic model for forecasting the future mail volume. Finally, we forecast the mail volume in korea about 20 years hereafter.

• Proceedings of the KSRS Conference
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• 2004.10a
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• pp.245-248
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• 2004

In this paper, we propose a framework for synchronization of spatial data between mobile devices and a server by using SyncML(Synchronization Markup Language) that is standard specification for synchronization protocol. We used GML (Geographic Markup Language) to support interoperability of spatial data between various data sources. We also used metadata and catalog service to access and integrate distributed spatial data, considering relationships of spatial data and non-spatial data.

• Electronics and Telecommunications Trends
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• v.14 no.2 s.56
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• pp.38-52
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• 1999

우정업무는 발송인으로부터 우편물을 접수하여 수취인에게 배달하기 위해 소요되는 인력 의존도가 80%인 노동 집약적인 업무이다. 이에 따라, 우편고객에게 고품질의 우편서비스를 제공하기 위한 목적으로 우편물 자동구분 처리시스템을 개발하여 적용하고 있다. 본 고에서는 우편서비스의 질을 향상시키기 위한 노력의 일환으로 고객 바코드의 활용사례를 분석하고, 우편고객에게 부가서비스를 제공하기 위한 방법을 제시한 내용이다.

• Proceedings of the IEEK Conference
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• 2000.11c
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• pp.47-50
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• 2000

Recently many efforts on the development of automatic processing system for delivery sequence sorting have been performed in ETRI , which requires the use of postal 4-state bar code system to encode delivery points. The 4-state bar code called postal 4-state bar code for high speed processing that has been specifically designed for information processing of logistics and automatic processing of the mail items. This paper describes a method of Reed-Solomon encoding for creating error correction codeword of 4-state bar code.

• 제어로봇시스템학회:학술대회논문집
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• 2000.10a
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• pp.365-365
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• 2000

In this paper, we describe the system to recognize the six digit postal number of mails using neural network. Our zip-code recognition system consists of a preprocessing procedure for the original captured image, a segmentation procedure for separating an address block area with a shape, and recognition procedure for the cognition of a postal number. we extract the feature vectors that are the input of a neural network for the recognition process based on an area optimizing and an image thinning processing. The neural network classifies the zip-code in the mail and the recognized zip-code is verified through the zip-code database.

• IE interfaces
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• v.20 no.4
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• pp.515-524
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• 2007

This paper introduces the methodology for restrict adjustment of 25 mail sorting centers including 3 new mail sorting centers to balance their work loads and minimize their operating costs. We calculated the capacity of mail sorting centers considering mail types and analyzed the collection/delivery mail volume of 214 post offices to measure the work loads of mail sorting centers. We also developed the mathematical model and genetic algorithm to find the optimal solution for this problem.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10b
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• pp.335-337
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• 2000

본 연구에서는 문자 인식의 응용으로서 인쇄된 우편봉투의 주소를 인식한다. 스캐너로 입력된 우편봉투 영상으로부터 주소영역과 우편번호 영역을 분리한다. 분리된 각각의 영역에서 문자를 추출하고, 전처리로써 정규화, 특징추출 단계를 거쳐 우편번호와 주소를 각각 인식하였다. 이때, 우편번호 인식에 의하여 알 수 있는 주소와 실제로 인식한 주소의 신뢰도를 계산하여, 주소 인식 결과를 보정하는 과정을 거쳐 우편봉투의 인식을 실행하였다.

• Journal of the Korean Association of Geographic Information Studies
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• v.6 no.4
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• pp.71-84
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• 2003

This paper designs and implements an integrated map server to produce an integrated map. Two requirements for the proposed map server are as follows. First, the system should support a customization of metadata to meet user's requirements. The map server designed here will predefine information such as representations, regions required for client-side processing in the metadata. This will allow users easily acquire an integrated map in the required form of clients. Second, the system should be able to support not only the integration of spatial data but also their non-spatial data. Fusion service is realized by using the concept of linking. The integrated map server suggested in this paper can improve the quality of the fusion service by integrating the results of the map servers according to user's requests. Our experiments shows that the integrated map server reduces the response time in web mapping environments.

• The Transactions of the Korea Information Processing Society
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• v.7 no.7
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• pp.2149-2160
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• 2000

Recently many efforts on the development of automatic processing system for delivery sequence sorting have been performed in ETRI, which requires the use of postal4-state bar code system to encode delivery points. The 4-state bar code called postal 4-state barcode for high speed processing that has been specifically designed for information processing of logistics and automatic processing of he mail items. The Information of 4-state bar code indicates mail data such as post code, delivery sequence number, error correction code worked, customer information, and a unique ID. This appear addresses the issue on he reduction of reading error in postal 4-state raster beam based bar code reader. The raster beam scanning features are the unequally distributed number of spots per each unit, which cause reading errors. We propose a method for reducing the bar code reading error by adjusting measured values of bar code width to its average value over each interval. The test results show that the above method reduces the average reading error rate approximately by 99.88%.