• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2022.06a
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• pp.1336-1338
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• 2022

폐기물 관리는 전 세계적으로 환경, 사회, 경제 문제를 일으키고 있다. 이러한 문제를 예방하고자 폐기물을 효율적으로 관리하기 위해, 인공지능을 통한 연구를 제안하고 있다. 따라서 본 논문에서는 GAN 기반 데이터 증강을 통한 폐기물 객체 인식모델을 제안한다. Open Images Dataset V6와 AI Hub의 공공 데이터 셋을 융합하여 폐기물 품목에 해당하는 이미지들을 정제하고 라벨링한다. 이때, 실제 배출환경에서 발생할 수 있는 장애물로 인한 일부분만 노출된 폐기물, 부분 파손, 눕혀져 배출, 다양한 색상 등의 인식저해요소를 모델 학습에 반영할 수 있도록 일반적인 데이터 증강과 GAN을 통한 데이터 증강을 병합 사용한다. 이후 YOLOv4 기반 폐기물 이미지 인식 모델 학습을 진행하고, 학습된 이미지 인식 모델에 대한 검증 및 평가를 mAP, F1-Score로 진행한다. 이를 통해 향후 스마트폰 애플리케이션과 융합하여 효율적인 폐기물 관리 체계를 구축할 수 있을 것이다.

• Review of Culture and Economy
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• v.19 no.2
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• pp.147-170
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• 2016

This study has identified the current status and challenges to development of Korean Ethnic Media Companies in North America, China, and Australia New Zealand and aimed to understand implication of cultural policy. It examines the media circumstances, business resources of Korean Ethnic Media Companies(KEMC), and Korean ethnic broadcasting aid project which is operated for 10 years, and interviewed nine CEOs' of KEMC. According to the analysis, KEMCs in North America are in the market which is fully exposed to competition. China's KEMCs are the "limitedly localized market" which is supported by the government's regulatory for minority media. Australia & New Zealande's KEMCs are the market which potential growth is expected. North American KEMCs are needed to upgrade the business structure and organizational resources for content differentiation. China's KEMCs have to diversify financial resources and to consolidate content power. and Australia & New Zealande's KEMCs need support & cooperatation from home country for ensuring high-quality content.

• The Journal of the Korea Contents Association
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• v.22 no.10
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• pp.642-657
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• 2022

The fourth industrial revolution became a decisive opportunity to increase our dependence on non-face-to-face services. Therefore, this study tried to derive a new strategic plan for non-face-to-face marketing by discussing the short-form branded content currently in the spotlight among the digital native generation. In particular, focusing on the phenomenon of co-viewing, where short-form branded content is viewed and communicated on social media, how exposure type of branded content affect attitudes toward short-form branded content and the products it contains verified. In addition, this research presents the perceived sense of belonging as a mediating variable. It was confirmed through an experiment whether the sense of belonging perceived by consumers during the co-viewing process significantly mediated the relationship between the exposure types and consumer attitudes. As a result of the study, it was found that the exposure type significantly affected the attitude towards the contents and the products contained in them. Furthermore, the perceived sense of belonging was also significant as a mediating variable.

• Korean journal of communication and information
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• v.47
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• pp.23-49
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• 2009

The purpose of the study is to suggest contents, and a range of a Nonnative Theory and a practice for overcoming a crisis of the Mass media. In order to achieve the purpose of the study, a limitation and implication of Social Responsibility Theory was looked into by investigating a Hutchins Report. Hutchins Report suggested the related points at moral duty and legal obligation in implementing mass media's Social Responsibility and Accountability, with relations in publics and community. However, within a view point of a lack of Accountability, Social Responsibility Theory limited responsibility to the realm of 'function', 'self-regulation' and 'self-ethics', In order to promote mass media's quality and serve to rehabilitate its reliability under the pluralistic media system, the contents of Social Responsibility and its scope should be suggested. Media Accountability is a starting point to draw out the contents and scope of Social Responsibility and also a valid democratic plan for mass media to 'social self-regulation' through the mutual communication with civil society. For future Social Responsibility and Media Accountability that is suitable for various mass media, and contents and a range should be defined.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06d
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• pp.308-310
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• 2012

최근 무선 센서 네트워크 환경에서 대용량 멀티미디어 데이터에 대한 요구가 증가하면서 통신 대역폭 및 한정적인 에너지의 한계를 극복하기 위한 대안으로 데이터 분할 및 다중 경로 기법들이 제안되었다. 기존 기법들은 데이터 전송 시에 발생하는 부하의 분산을 통해 네트워크의 성능을 향상시킬 수 있다는 것을 증명하였지만, 데이터의 효율적인 분할과 악의적인 공격에 의한 보안성 문제에 대해서 고려하지 않았다. 이러한 문제점을 해결하기 위해 본 논문에서는 비트평면 분할 기반의 보안성 있는 비-중첩 다중경로 라우팅 기법을 제안한다. 제안하는 기법은 멀티미디어 데이터를 비트평면 단위로 분할하여 다중 경로로 전송함으로써 기존의 키 기반의 암호화 기법을 사용하지 않고도 전체 네트워크에 대한 보안성을 향상 시켰다. 또한 경로 상 노드들의 잔여 에너지를 고려하여 데이터 전송을 수행함으로써 전체 네트워크의 에너지 효율성을 향상시켰다. 성능평가 결과, 제안하는 기법은 기존 기법에 비해 노드의 생존율이 평균 50% 이상 향상되었고, 데이터가 노출되더라도 해당 패킷을 가지고 본래 이미지를 복구하는 것이 불가능하기 때문에 높은 보안성을 제공한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.321-324
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• 2019

최근 국내에는 실업률 상승, 혼인률 하락 등 청년층 생애주기 변화, 단독거주, 고령층의 증가에 따라 1인 가구가 빠른 속도로 증가하고 있다. 이러한 추세는 지속될 것으로 예상되어 1인 가구를 겨냥한 맞춤형 보안솔루션에 대한 관심이 고조되고 있다. 본 논문에서는 사물 인터넷 기술을 적극적으로 접목할 수 있을 것으로 기대되는 디지털 도어락의 구현에 관한 연구를 수행하였다. 사물 인터넷 기술은 5G 시대의 도래에 따라 다시금 주목받고 있다. 이는 4차 산업혁명 시대의 핵심 기반 기술로 주요 IT 기업들이 상용화 기술 확보를 추진하고 있는 상황이다. 한편 디지털 도어락은 열쇠가 필요하지 않으며 위급상황이나 안전상황에 클릭 한번으로 출동 요원의 출동을 곧바로 요청할 수 있어 고객에게 편의성과 보안성을 제공한다. 하지만 비밀번호 방식의 디지털 도어락은 주기적으로 비밀번호를 교체해주지 않는 이상 지속적으로 같은 자리의 버튼만을 누르게 된다. 이렇게 되면 해당 위치에 지문이 남아서 비밀번호가 노출될 위험이 있다. 그러나 사물 인터넷 기술을 이용한 디지털 도어락을 사용하게 된다면 안전한 도어락 사용으로 주거 보안을 실현할 수 있다. 따라서 1인 가구를 노리는 범죄를 예방하기 위해 라즈베리 파이와 아두이노의 UART 통신, 머신러닝 CV를 이용하여 얼굴 인식으로 동일인임을 판단하는 디지털 도어락을 구현했다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.14 no.3
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• pp.49-61
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• 2004

In broadcast encryption schemes, traceability is a useful property to trace authorized subscribers, called traitors, who collude for manufacturing a pirate decoder. Unfortunately, this is usually achieved with a sacrifice of a privacy. Most traitor tracing schemes in the literature have been developed without considering a subscriber's anonymity, which is one of important requirements for electronic marketplaces to offer similar privacy as current marketplace. It would be unsatisfactory for the subscriber to reveal his/her identity to purchase multimedia contents. In this paper we propose an anonymous broadcast encryption scheme, where a user can subscribe anonymously and one purchases multimedia contents without giving a lot of information about his lifestyle, habits, and etc, but anonymity control is provided, i.e., a data supplier can date traitors.

• Journal of Korea Multimedia Society
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• v.7 no.1
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• pp.91-97
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• 2004

As the electronic commercial transaction is being transacted by contents which can get an illegal intrusion from the outside, we sincerely require security for them. We must consider a protection countermeasure about intrusion from protection of the passive form to protection intrusion of the active one. So the security is required against hackers illegality intrusion into the contents. As soon as the intrusion happens about the contents, the tools providing the monitor of contents are required to minimize the damage to the systems. Modified web contents detection system in this paper prevents the loss of resources and manpower required through individually monitoring on the web. Also, this paper offers rapid support of security that it analyzes the weakness of contents security of the web environment and the cause of the problem with the leakage of information. So this system has the pur pose of protecting the weakness of contents security and the leakage of information.

• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.4
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• pp.709-716
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• 2020

In social media, when posting a post, tag information of an image is generally used because the search is mainly performed using a tag. Users want to expose the post to many people by attaching the tag to the post. Also, the user has trouble posting the tag to be tagged along with the post, and posts that have not been tagged are also posted. In this paper, we propose a method to find an image similar to the input image, extract the label attached to the image, find the posts on instagram, where the label exists as a tag, and recommend other tags in the post. In the proposed method, the label is extracted from the image through the model of the convolutional neural network (CNN) deep learning technique, and the instagram is crawled with the extracted label to sort and recommended tags other than the label. We can see that it is easy to post an image using the recommended tag, increase the exposure of the search, and derive high accuracy due to fewer search errors.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.869-871
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• 2011

For people who live in 'the Media Age', contact with the media is indispensable. In various mass media, especially TV, it is the most familiar and influential media, because it is easy to access and used regardless of age or gender. However, in many recent TV programs the subtitles of the misuse and abuse problems are pointed out. In the popular entertainment programs, and dramas, the problems are the most serious. Many entertainment programs organized during prime time have largely a family audience. Thus, the effects and responsibilities according to subtitles should be accompanied. The subtitles are an element that make up the entertainment program. In this study, the abuse cases of subtitle usage were analyzed. This study is aimed at maximizing the proper function of the subtitles, and creating fun and laughter through reducing misuses in various entertainment programs.