• Proceedings of the KIEE Conference
• /
• 2004.11c
• /
• pp.15-18
• /
• 2004

In this paper, it is implemented the monitoring system for TV advertisement using video watermark. The functions of an advertisement monitoring system are automatically monitoring for the time, length, and index of the on-air advertisement, saving the log data, and reporting the monitoring result. The performance of the video watermark used in this paper is tested for TV advertisement monitoring. This test includes LAB test and field test. LAB test is done in laboratory environment and field test in actually broadcasting environment. LAB test includes PSNR, distortion measure in image, and the watermark detection rate in the various attack environment such as AD/DA(analog to digital and digital to analog) conversion, noise addition, and MPEG compression The result of LAB test is good for the TV advertisement monitoring. KOBACO and SBS are participated in the field test. The watermark detection rate is 100% in both the real-time processing and the saved file processing. The average deviation of the watermark detection time is 0.2 second, which is good because the permissible average error is 0.5 second.

• The Transactions of The Korean Institute of Electrical Engineers
• /
• v.56 no.1
• /
• pp.206-213
• /
• 2007

In this paper, The monitoring system for TV advertisement is implemented using video watermark. The functions of the advertisement monitoring system are monitoring the time, length, and index of the on-air advertisement, saving the log data, and reporting the monitoring result. The performance of the video watermark used in this paper is tested for TV advertisement monitoring. This test includes LAB test and field test. LAB test is done in laboratory environment and field test in actually broadcasting environment. LAB test includes PSNR, distortion measure in image, and the watermark detection rate in the various attack environment such as AD/DA(analog to digital and digital to analog) conversion, noise addition, and MPEG compression. The result of LAB test is good for the TV advertisement monitoring. KOBACO and SBS are participated in the field test. The watermark detection rate is 100% in both the real-time processing and the saved the processing. The average deviation of the watermark detection time is 0.2 second, which is good because the permissible average error is 0.5 second.

• The Research Journal of the Costume Culture
• /
• v.17 no.2
• /
• pp.330-342
• /
• 2009

The purpose of this study was to investigate the equity formation of private apparel brand according the service quality of TV home-shopping. A questionnaire was designed for the survey and the subjects were 383 female adults in Seoul and the Kyongnam province, Korea. The statistical analyses were carried out in the forms of frequency, factor analysis and path analysis of SPSS WIN 14.0. The findings throughout the research are as follows; First, the underwear sets and single item apparel sets with private brand had been well sold at better price. Second, the service quality of TV home shopping was perceived as the four factors of safety, contents, informative faculty and reliability. The reliability and contents factors had higher effects on the equity formation of private apparel brand. Third, the brand image, perceived quality, brand recognition as the cognitive dimension had influenced on the hedonic and utilitarian attitudes. The hedonic attitude and perceived quality had a great deal influence on the purchasing intend as the last behavior dimension.

• Journal of Family Resource Management and Policy Review
• /
• v.10 no.4
• /
• pp.163-177
• /
• 2006

The main purpose of this study was to examine TV viewers' behavior on receiving family-related images reflected in soap operas and find the relationship between TV viewers' family-related value and TV viewers' behavior on receiving family-related images reflected in soap operas with empirical data. The data were collected from 500 adults aged 20-49 living in Seoul area for 3 days(January 17 to 19 of 2006). Statistical methods used were frequency, percentage, regression analysis. The results showed that TV viewer's family-related values and socio-economic characteristics influenced the family-related image reception behavior. Especially viewers' values about child was the most significant variable affecting TV viewers' receptions of family-related images reflected in soap operas.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 1999.06b
• /
• pp.35-40
• /
• 1999

이 논문은 디지털 TV의 압축 비트열을 전송할 때, 채널 오류로 인해 디지털 TV 디코더에서 화면을 재생할 때 발생할 수 있는 화질의 저하를 최소화시키는 방법을 기술한다. 텔레비전과 같은 단방향 방송 시스템에서 전송 도중에 오류가 발생하여 수신측에서 전송 오류를 제대로 정정하기 곤란할 때, 재생된 화면이 심각하게 훼손될 수 있다. 이때 오류로 인한 화면의 손상을 주변의 공간적 또는 시간적 상관 정보를 이용하여 화면을 복원하는 동작을 오류 은폐라고 한다. 최근 디지털 TV나 고선명 TV의 기본 부호화 방식으로 많이 사용하고 있는 MPEG 비디오 표준 방식은 공간적인 중복 정보를 압축하기 위해 DCT 변환을 수행하며, 시간적인 중복 정보를 압축하기 위해 움직임 예측과 움직임 보상 방법을 이용한다. 또한 MPEG 비디오 압축 방식은 일종의 차분 부호화 방법을 사용하기 때문에 현재 화면에서 오류가 발생하면 현재 화면뿐만 아니라, 시간적으로 나중에 부호화된 화면에도 오류가 전파된다. 본 논문에서는 MPEG 비트열의 채널 오류의 영향을 분석하여 화면간에 존재하는 시간적인 중복성을 이용하여 움직임 벡터를 추정하여 손상된 부분을 은폐시키는 방법을 제안한다. 기본적으로 손상된 매크로블록의 위와 아래로 인접한 화소값들을 움직임 벡터의 추정에 사용한다. 제안된 방법들 중에서 주변 움직임 벡터들의 가중치를 이용한 평균값 방법과 초기 움직임 벡터를 이용한 확장 영역 움직임 추정 방법이 우수한 결과를 보였다.

• Proceedings of the Korea Contents Association Conference
• /
• 2011.05a
• /
• pp.559-560
• /
• 2011

본 연구는 국내에서 제작 방송되는 골프 중계방송이 골프 스포츠와 관련된 현실을 어떻게 전달하는가에 관심을 가지며, 현실 재구성의 관점에서 TV 골프 중계방송의 이야기구조를 살펴보고자 하였다.

• Journal of the Korean Society for Precision Engineering
• /
• v.19 no.11
• /
• pp.89-95
• /
• 2002

A shadow mask inside the Braun tube of a TV is sustained by springs attached to the glass panel, its vibration cause the picture image to discolor, which is called the microphonic phenomenon. It is found that it results from resonance when the natural frequency of the shadow mask coincides with that of built-in speaker sound. This paper describes experimental and analytical investigations by using FEM on the vibration problem of the shadow mask assembly. The simulation scheme may be efficiently used to develop a new design for a large-screen flat TV.

• Proceedings of the Korea Contents Association Conference
• /
• 2010.05a
• /
• pp.82-84
• /
• 2010

그동안 커뮤니케이션 효과에 관한 많은 연구들이 진행되어 왔다. 특히 의제설정 관련 이론들은 맥콤과 쇼(McCombs & Shaw, 1972)[1]에 의해 최초의 연구가 발표된 이후, 수백 편 이상의 관련 연구들이 축적되어 왔다. 이러한 연구들을 통해서 미디어가 중요하게 보도한 의제는 수용자 의제에 많은 영향을 미친다는 사실을 누구도 부정하기 어렵다. 그러나 이러한 연구들은 주로 언어텍스트를 중심으로 이루어져왔다. 그러나 신문이나 인터넷 미디어와는 달리, TV 미디어에서 수용자들은 언어텍스트에 의해서만 정보를 얻는다고 보기는 어렵다. 본 연구는 텔레비전 뉴스 보도에서 영상과 자막이 수용자의 의제설정 효과에 어떤 영향을 미치는지 실험을 통해 검증해보고자 한다.

• Journal of electromagnetic engineering and science
• /
• v.1 no.2
• /
• pp.131-138
• /
• 2001

The DTV (Digital TV) tuner for an 8-VSB (Vestigial Side-Band) modulation was developed to meet the requirements of the ATSC (Advanced Television Systems Committee). The double frequency conversion and the active tracking filter in the front-end were used to cancel interferences between adjacent channels and multi-channels by suppressing the IF beat and the Image frequency. However, It was impossible to get frequency mapping between the tracking filter and the first VCO (Voltage Controlled Oscillator) in the existing DTV tuner structure which differs from the NTSC (National Television Systems Committee) tuner. This paper, therefore, suggests an assailable structure and a new method for the automatic frequency selection by mapping the frequency characteristics over the tracking voltage and the combined HW which is composed of a Micro-controller, an EEPROM (Electrically Erasable Programmable Read Only Memory), a DAC (Digital-to-Analog Converter), an OP amplifier, and a switch driver.

• Journal of the Korean Institute of Telematics and Electronics
• /
• v.27 no.2
• /
• pp.135-143
• /
• 1990

In this paper, a new motion detection method using an order-statistic filter is proposed to improve the image quality when the QT subsampling structure is used for reduction of bandwidth of high-resolution TV signals. This new method is applicable to the MUSE system of HDTV and various schemes using the multiple subasmpling with frame-offset for the reduction of bandwidth in highresolution TV signals.