• 한국IT서비스학회:학술대회논문집
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• 2006.11a
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• pp.532-539
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• 2006

We conduct an empirical study on RFID application to a real container terminal gate. The objective of this study is three-fold. The first is to design a new gate management process that applies RFID technology. For this purpose, we analyze current gate management process to find opportunities for improvement. The second is to verify the 433 and 900 Mhz RFID technology in terms of the recognition rate of information contained in RFID tag under various conditions such as the speed of vehicle, the position of RFID tag and the tilt of RFID reader. We perform some experimental tests for this verification. Finally, we try to find suitable conditions for the speed of vehicle, the position of RFID tag and the tilt of RFID tag reader based on results of the experimental tests. Those findings are obtained with some ANOVA tests. Additionally, we summarize anticipated issues when applying RFID technology to the gate management process and possible solutions for the issues.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.3
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• pp.396-402
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• 2022

User interactions are being developed in various forms, and in particular, interactions using human gestures are being actively studied. Among them, hand gesture recognition is used as a human interface in the field of realistic media based on the 3D Hand Model. The use of interfaces based on hand gesture recognition helps users access media media more easily and conveniently. User interaction using hand gesture recognition should be able to view images by applying fast and accurate hand gesture recognition technology without restrictions on the computer environment. This paper developed a fast and accurate user hand gesture recognition algorithm using the open source media pipe framework and machine learning's k-NN (K-Nearest Neighbor). In addition, in order to minimize the restriction of the computer environment, a stereoscopic image control system based on user hand gesture recognition was designed and implemented using a web service environment capable of Internet service and a docker container, a virtual environment.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.11b
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• pp.786-791
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• 2002

오늘날 컨테이너의 과다한 물동량 증가로 인하여 수작업으로 이루어지는 컨테이너를 처리하는데 어려움을 겪고 있다. 따라서 식별자로 컨테이너를 자동 인식하고 그 결과를 항만 물류처리 자동화 시스템에 적용하고자 하는 필요성이 대두되고 있다. 이에 본 논문에서는 항만 물류처리 자동화 시스템을 사용하기 위하여 컨테이너의 인식 처리를 자동화하는데 그 방안으로 컨테이너의 RGB를 이용하여 바탕색과 문자색을 검출하고 바탕색과 문자색의 차를 이용해 가장 큰 차이를 보이는 RGB 값 중 하나로 영상을 이진화 하였다. 컨테이너의 식별자를 인식하기 위해서 신경망 알고리즘의 하나인 Back-propagation을 적용하여 기존의 식별자 인식 방법보다 신속하고 정확한 처리가 가능하도록 구현하였다.

• Proceedings of the Korea Multimedia Society Conference
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• 2001.06a
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• pp.111-115
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• 2001

컨테이너 영상의 문자를 인식하는데 있어 정규화 되어 있지 않은 컨테이너 영상의 문자영역을 추출한다는 것은 어렵다. 색깔. 위치, 글자 크기 등이 정해져 있지 않기 때문에 일정한 규칙으로 찾기는 힘들다. 따라서 본 논문에서는 이러한 특성을 고려하여 형태학적인 특성이 아니라 명암도를 조사하여 문자가 분포할 가능성이 있는 후보 영역을 찾고 Canny 에지 추출 기법과 에지 추적 기법으로서 문자가 있는 영역을 추출한다. 추출된 컨테이너의 문자 영역에서 히스토그램 방법을 이용하여 개별 문자를 추출하고 ART 알고리즘을 이용하여 인식한다. 실험 결과에서는 여러 영상에 대해 인식율이 우수한 것을 보인다.

• Proceedings of the Korea Multimedia Society Conference
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• 1998.10a
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• pp.254-259
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• 1998

오늘날 컨테이너의 과다한 물동량 증가로 인하여 수작업으로 이루어지는 컨테이너 식별자를 처리하는데 어려움을 겪고 있는 가운데, 이를 자동으로 인식하고 그 결과를 항만 물류 처리 자동화 시스템에 적용하고자 하는 필요성이 대두되고 있다. 이에 본 논문에서는 컨테이너의 인식 처리를 자동화하기 위한 방안으로 컨테이너의 식별자 인식에 신경망 알고리즘의 하나인 Back-propagation을 적용하였으며, BP 알고리즘을 적용하기 위해서 적절한 scaling 비율을 구하고, 학습 DB를 구축하여 기존의 식별자 인식보다 신속하고 정확한 처리가 가능하도록 구현하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 1999.10a
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• pp.321-332
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• 1999

It is important to detect objects movement for obstacle recognition and path searching of UCT(unmanned container transporters) with vision sensor. This paper shows the method to draw out objects and to trace the trajectory of the moving object using a CCD camera and it describes the method to recognize the shape of objects by neural network. We can transform pixel points to objects position of the real space using the proposed viewport. This proposed technique is used by the single vision system based on floor map.

• Journal of Korea Society of Industrial Information Systems
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• v.28 no.6
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• pp.29-43
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• 2023

Consumers should look at the ingredients of cosmetics or food for their health and purchase them after checking whether they contain allergy-causing ingredients. Therefore, this paper aimed to develop an artificial intelligence-based smartphone application for automatically recognizing the ingredients displayed on a curved container and delivering it to consumers in an easy-to-understand manner. The app needs to allow consumers to immediately comprehend the restricted ingredients by recognizing the ingredients' words in the cropped image. Two major issues should be solved during the development process: First, although there were flat containers for cosmetics or food, most were curved containers. Thus, it was necessary to recognize the ingredient table displayed on the curved containers. Second, since the ingredients' words were displayed on the curved surface, the transformed or line-changed words also needed to be recognized. The proposed new methods were enough to solve the above two problems. The application developed through various tests verified that there was no problem recognizing the ingredients' words contained in a cylindrical curved container.

• Journal of the East Asian Society of Dietary Life
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• v.7 no.2
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• pp.211-220
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• 1997

This study was investigated about preparation of ice at home and developing points which met consumer's demand that was focused on auto icemaker. According to purposive quota sampling method, residences in Seoul and Kyunggi-do area were selected and interviewed by trained interviewer at August 1995. The results were as follows: 66.3% of respondent usually prepared ice in ice-making container of refrigerator and used when they needed. 85% of them used ice in summer and seldomly used in other seasons. Boiling water with barley was major drinking water(45.6%), and broiled or purified tap water was used to make ice(38.6%) commonly. Numbers of ice-making container were two(66.0%). Above 50% of respondents replied that they felt off-flavor in ice usually. After felt off-flavor, 54.7% of respondent threw away the ice, some of them used off-flavored ice after treatment to washing with water. 64.9% of respondents thought that the origins of off-flavor was the flavor of refrigerator itself. The consumer's expectation of developing points were as follows. The most priority of developing points was to make ice quickly, the next was to develop auto ice maker and ice storage container, to make different size of ice. Less expected points were to make more clear ice and large volume of ice in one time. The recognition about auto ice maker was slightly low(35% of respondents), but 67% of them wanted to develop auto ice maker.

• Journal of Korea Society of Industrial Information Systems
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• v.14 no.2
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• pp.23-31
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• 2009

Since 9.11 terrorist attacks against the USA, the new paradigm for "supply chain security" has been established. And at the same time a lot of researches are being made on supply chain security by many foreign companies or research institutes. However, domestically the terms "supply chain security" themselves are not yet familiar, and the paradigm of security are not being used in the logistics, while little researches are being made on them But recently along with development of "ConTracer," a supply chain security technology, which is to be used as the equipment for container cargo transportation safety based on RF1D technology, related researches have begun to be activated. The key issues for the development of equipment for container transportation safety are to obtain both a high recognition rate and enough recognition distance. To this end, this study has tested the ConTracer (433 MHz type and 2.4 GHz type) by using Taguchi Method. According to our test results, in the case of 433 MHz type, it is a little more effective that the reader faces to the front-right side, and in the case of 2.4 GHz, reader direction does not make difference in the view of sensitivity. The test also has proved that it is better that antenna location, as expected, is to be installed on the outside for both types alike.

• Journal of Environmental Health Sciences
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• v.30 no.4
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• pp.329-343
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• 2004

We conducted to investigate citizen's attitude to the treatment of food waste in Yongin city. The respondent of $41.81\%$ throws the food waste eliminate from home and store less than 1l in Yongin. When they dump the food waste, they speak out the inconvenience of damaged envelope by animals in case of home and store. This caused troubles for reason of sanitary. So a local autonomous entity must carefully consider of expand use specially designed container as like apartment house. They give an answer that the collecting time of food waste is suitable form dawn till morning. This answer shows the satisfaction of the period time to collect the food waste. They prefer to be appointed the exclusive place to collect food waste. The service interval of collect is suitable 1 time a day. They want to increase the number of washing of the collecting container. This is good method for sanitary condition, but the care of the period time to collect the food waste is more efficient than the care of the number of washing the collecting container. The care of the period time minimizes to incur the enmity of the people and to pollute in environment. The major of respondent handled the food waste after keeping the basket or a kit. This fact shows to us almost citizen doesn't feel the seriousness to remove the moisture of the food waste. Recently, many solutions which can be disposal efficiently are getting magnified and improved owing to increase utilities channel to loss in quantities and dry the food waste. We expect the reduction of food waste is solved getting easily step by step. The results of the awareness about the facility of food waste show citizen prefer recycling facility to the other facilities. If recycle facility and incineration facility are constructed, they were worried about bed smell. When some facility of the food waste is constructed, they have to maintain and to handle not to incur the enmity of the people. The spread rate of specially designed container already increased, the citizen set a high value on the use of specially designed container more than amount-rate vinyl envelope that people have used for several years. In the cost treatment about food waste, the major respondent answered the use cost of specially designed container is suitable price. So we can know the use charge is proper level. The majority of citizen more prefer autonomous plan which voluntary atmosphere creation and public information by mass media than levy system and rising treatment cost which forced plan. The citizens have pretty positive thinking of incineration, so the government needs more efforts for a public notice, which includes the incineration is no more than abandoned thing. Each of local self government has to sort the food waste and make kind of resource system related to collecting and carrying, constructing a suitable facility, proper disposal of the food waste and producing harmless in our surrounding in order to solve the invisible problems. To do above mentioned things, we have to analyze referred several problems till now. Also, to minimize the side effect, the government will have to improve through enforce the system.