• 한국방송∙미디어공학회:학술대회논문집
• /
• 한국방송공학회 2014년도 하계학술대회
• /
• pp.109-111
• /
• 2014

본 논문에서는 비접촉 동작 인식 기기를 활용한 동영상 콘텐츠 검색 시스템을 소개한다. 제안하는 시스템은 스마트 TV와 같은 인터넷이 가능한 디스플레이의 동영상 콘텐츠를 대상으로 하며, 콘텐츠 자체 또는 콘텐츠 내의 객체에 대한 정보를 검색 결과로 제공한다. 시스템 구현에 앞서 영상 콘텐츠의 검색 요구 사항에 따라 시나리오 및 기능을 수립하고, 각각의 기능은 비접촉 동작 인식 기기인 립모션을 기반으로 손 동작을 지정하였다. 따라서, 제안하는 시스템은 사용자의 손가락 동작에 의해 선택된 영역을 모바일 비주얼 검색 서버에 전송하게 되고, 검색 결과는 모바일 기기를 통해 최종적으로 전달된다. 본 논문에서는 시스템을 실제로 구현하고 다양한 콘텐츠에 대하여 실험하였다. 개발된 시스템을 통해서 사용자는 손을 이용한 간단한 동작에 의해 콘텐츠 정보, 콘텐츠 내 객체의 정보를 실시간으로 모바일을 통해 제공받을 수 있다.

• 보건의료산업학회지
• /
• 제6권3호
• /
• pp.13-27
• /
• 2012

This study aimed to identify the effects of contents, to find out the development approaches of promotion and contribute to increase the expectation on medical institutions and wills to use and improve the customer satisfaction on homepages of such medical institutions by analysis on the contents of hospital homepage. This research performed the frequency analysis, cross analysis, t-test correlation analysis, and multiple regression analysis and came to the conclusion. In accordance with the research results, since the university hospital homepages had more contents than the homepage of general hospitals and national and public hospitals, the university hospital homepage provided sufficient information to visitors and tried to satisfy the customers and activate the hospital promotion using the homepage contents. On the contrary, the homepage of general hospitals and national and public hospitals had insufficient contents and unique and differentiated contents were not sufficiently provided. On the basis of the results of this study, further study on the approaches to improve the contents of homepage of general hospitals and national and public hospitals will be of great help to activate the hospital promotion by increasing the average number of visitors and page views. Furthermore, it is required to make every endeavor for systematic management and operation and research on promotion using the homepage contents.

• 한국정보디스플레이학회:학술대회논문집
• /
• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
• /
• pp.51-54
• /
• 2008

In this paper, we propose a practical method for displaying 2D/True3D mixed contents in real-time. Many companies released their 3D display recently, but the costs of producing True3D contents are still very expensive. Since there are already a lot of 2D contents in the world and it is more effective to mix True3D objects into the 2D contents than making True3D contents directly, people became interested in mixing 2D/True3D contents. Moreover, real-time 2D/True3D mixing is helpful for 3D displays because the scenario of the contents can be easily changed on playback-time by adjusting the 3D effects and the motion of the True3D object interactively. In our system, True3D objects are rendered into multiple view-point images, which are composed with 2D contents by using depth information, and then they are multiplexed with pre-generated view masks. All the processes are performed on a graphics processor. We were still able to play a 2D/True3D mixed contents with Full HD resolution in real-time using a normal graphics processor.

• 한국전자거래학회지
• /
• 제15권4호
• /
• pp.197-218
• /
• 2010

Korean Government has invested a lot of efforts on digital contents industry. It believes that the digital contents industry enables Korea to regain the reputation of the most powerful IT country. Among its various efforts to promote the digital contents industry, a Digital Contents Identifier System, called UCI(Universal Contents Identifier), has been developed and deployed. UCI has provided a critical infrastructure for digital contents production and distribution. Thanks to Korean Government's efforts, users (companies and individuals) have currently registered 3.8 million digital contents through 25 RA organizations. Although the number of registered contents has been increased rapidly, many organizations hesitate to adopt the UCI system due to the lack of visible and short-term returns from the UCI system. Thus, this research tries to explore factors which affect UCI user satisfaction. This research finds that user's awareness, information quality, and service quality are the critical influencing factors toward UCI user satisfaction. In addition, this research finds that the critical influencing factors in public organizations are different from the critical influencing factors in private organizations. These findings hopefully provide useful guidelines for disseminating the UCI system widely.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2006년도 하계종합학술대회
• /
• pp.375-376
• /
• 2006

In this paper, we propose a wavelet-based audio watermarking algorithm to be robust against capturing attack. Commercial capturing tools enable us to obtain audio contents without noticeable degradation in audio quality, and it is possible to be a source of illegal distribution. By adjusting mean values of the lowest subband in audio, the proposed method can survive after capturing attack including sampling rate conversion, random cropping and compression. By applying a simple human auditory model, the inaudibility of the watermark is achieved, and detection probability is improved based on the difference information. This is confirmed by experimental results.

• 방송공학회논문지
• /
• 제11권3호
• /
• pp.263-275
• /
• 2006

본 논문에서는 지상파 DMB 대화형 서비스를 위한 BIFS 콘텐츠를 쉽고 편리하게 저작할 수 있도록 하는 BIFS 콘텐츠 저작 시스템에 대하여 소개한다. 지상파 DMB에서는 대화형 방송 서비스를 위하여 MPEG-4 BIFS 규격을 채택하고 있으며 이를 이용하여 다양한 형태의 대화형 멀티미디어 방송 서비스가 가능하다. 이러한 대화형 서비스 활성화되기 위해서는 다양한 형태의 대화형 콘텐츠의 원활한 공급이 선행되어야 한다. 지상파 DMB 대화형 방송 서비스를 위한 BIFS 콘텐츠는 많은 수의 노드(node), 라우트 (route) 및 기술자 (descriptor) 들의 조합으로 표현된다. 따라서, 지상파 DMB에서의 대화형 방송 서비스가 활성화되기 위해서는 MPEC-4 BIFS에 대한 기술적인 지식이 없는 경우에도 쉽고 편리하게 대화형 콘텐츠를 저작 할 수 있는 대화형 콘텐츠 저작 기술이 필수적이다. 본 논문에서 소개하는 지상파DMB 대화형 콘텐츠 저작 시스템은 지상파 DMB 규격 및 MPEG-4 BIFS 규격을 준수하도록 개발되었으며, 상기 규격에 대한 지식이 전혀 없는 일반 사용자들도 쉽고 편리하게 대화형 콘텐츠를 저작할 수 있도록 개발되었다. 따라서, 본 논문에서 소개하는 BIFS 콘텐츠 저작 시스템은 지상파 DMB를 통한 대화형 방송 서비스의 활성화에 크게 기여할 것으로 기대된다.

• 한국콘텐츠학회:학술대회논문집
• /
• 한국콘텐츠학회 2011년도 춘계 종합학술대회 논문집
• /
• pp.45-46
• /
• 2011

본 연구에서는 새로운 전자소자 및 부품 제조기술로 각광받고 있는 인쇄전자 기술의 발전 동향을 기반기술과 응용분야별로 살펴보고 이러한 제조기술의 발전이 콘텐츠 산업에 미치는 영향을 살펴본다.

• 한국토양비료학회지
• /
• 제46권6호
• /
• pp.452-457
• /
• 2013

To obtain the useful data related to optimum nutrient management technique for pesticides-free jujube cultivation, nutrient contents of jujube leaves and fruits and the selected chemical properties of jujube orchard soils were investigated at 9 different orchards with pesticides-free cultivation in Boeun, Chungbuk, Korea. Soil and jujube leaf samples were collected from the different orchards in July and October, and jujube fruit samples were taken in October, 2012. Soil available $P_2O_5$ contents in the optimum level for jujube cultivation were 11% and 33% of total samples in July and October, respectively, but 56% of total samples was higher than the optimum level in both July and October. Exchangeable K and Ca ion contents were 44% and 67% of total samples, respectively, in both July and October, whereas exchangeable Mg ion content was 100% and 56% of total samples in July and October, respectively. Nutrient contents in jujube leaves were higher than those in fresh fruits. In addition, total nitrate, potassium and magnesium contents in the jujube leaves were higher in the samples collected in July than in October.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2006년도 하계종합학술대회
• /
• pp.287-288
• /
• 2006

CG and Photo-realistic image composition in the ocean scenes is frequently used in movies and TV advertisement. But it is very difficult task because it's impossible to use calibration tool in outdoor environment or to use auto-calibration algorithm using natural features like KLT(Kanade Lucas Tomasi feature tracker) from the ocean scene. We propose a simple, effective method for solving camera motion using previous knowledge about background structure. We applied our method to the production of a commercial movie, 'Hanbando' and the result was satisfactory.

• 한국약용작물학회지
• /
• 제19권6호
• /
• pp.414-420
• /
• 2011

We investigated antioxidant activity and lignan contents by harvesting times to expand use of Schisandra chinensis (Turcz.) Baillon. Total polyphenol and flavonoid contents of seed was higher than those of flesh but there is not much difference in harvesting times. As $RC_{50}$ value, that was, the concentration of sample required for 50% reduction of 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical, was 13.7~24.2 ${\mu}g/m{\ell}$ in seed thus it showed a high antioxidant activity. Among lignan components, schizandrin content was the highest and followed by gomisin N and gomisin A in all of flesh and seed. Also these components in seed were 4~9 times more contained than those of flesh. All of them were decreased by harvesting times in flesh. But the contents of schizandrin and gomisin N were high in August 3rd and September 15th in seed, respectively. As the results, the seed of S. chinensis had high antioxidant activity and lignan contents so it could be potentially developed as a resource.