• Title/Summary/Keyword: TV Image

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Design and Fabrication of Scanning Backlight System using Flat Fluorescent Lamp (면광원을 사용한 Scanning Backlight System의 설계 및 제작)

  • Chae, Hyung-Jun;Hur, Jeong-Wook;Hwang, Sun-Nam;Lee, Jun-Young;Lim, Sung-Kyoo
    • Journal of the Semiconductor & Display Technology
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    • v.7 no.2
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    • pp.29-33
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    • 2008
  • LCD panels are increasingly used to show moving image material, for example in LCD television sets. However, moving images become blurred on LCD panels. One of the causes of motion blur is the slow reaction of LC(liquid crystal) cell to change in the pixel value. Another cause of motion blur is the hold-type characteristic of the LCD panel, during the frame time the image is shown continuously. This type of motion blur can be reduced with a scanning backlight. We have designed and fabricated a scanning backlight system that solves the hold-type characteristic problem in a way that Flat fluorescent lamp divided 6 blocks was scanned 60Hz.

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A Study on the Rotating Displacement Measurement of Rigid Body by ESPI Method (ESPI법에 의한 강체 회전 변위 측정에 관한 연구)

  • 김경석;홍명석
    • Transactions of the Korean Society of Automotive Engineers
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    • v.1 no.2
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    • pp.125-133
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    • 1993
  • Electronic Speckle Pattern Interferometry(ESPI) using a CW laser, a video system and image processor was applied to the rotating displacement of rigid body. ESPI require no special surface preparation or attachments and displacements between any two arbitrary points on the surface can be measured. The characteristic speckle pattern formed when imaging a scattering surface illuminated by laser light retains phase information, which can be used for interferometric measurement of surface displacement. The application of this principle to measuring in-plane displacement resolved in one direction is described, together with the novel use of television equipment to detect and process the information contained in the speckle pattern. This is faster, and more convenient and versatile than customary photographic methods.

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A Study of Effects of Product Placement(PPL) on Brand Image (제품배치(PPL)가 브랜드 이미지에 미치는 영향에 관한 연구)

  • Lee, Hyun-Mi;Cho, Jai-Rip
    • Proceedings of the Korean Society for Quality Management Conference
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    • 2006.04a
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    • pp.114-119
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    • 2006
  • Brand placement, or product placement(PPL) is one of alternative promotion means of the traditional advertising communication type, and its effectiveness is getting begger because of the increase of movies, video media, and TV networks. The product placement is a new type of advertising communication means that pays the price in the movies definitely. This study is a research on the effect of the product placement on the consumption behavior and brand image.

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Performance Analysis of Automatic Thickness Image using Convolution Function (컨벌루션 함수를 이용한 자동두께측정 영상의 성능분석)

  • Kang, Min-Goo;Zo, Moon-shin
    • Journal of Internet Computing and Services
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    • v.11 no.1
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    • pp.21-26
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    • 2010
  • In this paper, film uniformity is improved by the bolt-mapping of convolutional image processing between bolts and a film using soft X-ray based in-line LCD TV film thickness controls. The automatic film thickness analysis of 3 inter-bolt's convolution function is proposed for the reduction of offset error from the X-ray changing of line scan in film profiles.

Reflections on Application of VR Technology in Field of News Media

  • Chen Xi;Jeanhun Chung
    • International Journal of Internet, Broadcasting and Communication
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    • v.15 no.2
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    • pp.196-201
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    • 2023
  • In recent years, virtual reality (VR) technology has been widely used in many industrial fields, especially in the fields of medical treatment, games, film and television, to improve the interaction between medical teaching and practical treatment. On the gaming side, the production of virtual reality gaming screens and scenes became increasingly popular, greatly expanding the form of the visual experience. But VR is no longer confined to the health care, education and entertainment industries. During this time, the news media industry has also begun to integrate virtual reality into interviews and user interactions. This study aims to analyze the development of VR technology from the perspectives of immersive VR news experience, real reporting, and prospects, and analyze and think about the interactive participation of media users, the transformation of traditional media, and the upgrading of practitioners' roles.

Body image distortion in fifth and sixth grade students may lead to stress, depression, and undesirable dieting behavior

  • Cho, Jin-Hee;Han, Sung-Nim;Kim, Jung-Hee;Lee, Hong-Mie
    • Nutrition Research and Practice
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    • v.6 no.2
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    • pp.175-181
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    • 2012
  • The widespread pursuit of a thin physique may have a detrimental impact on the wellbeing of preadolescents. The influence of body image distortions on the lifestyles, dieting behaviors, and psychological factors was investigated in 631 fifth and sixth grade children in Kyeonggi-do, Korea. Children were classified into three weight groups (underweight, normal, and overweight) and three perception groups (underestimation, normal, and overestimation). Necessary information was obtained by questionnaire, and each subject's weight status was determined by the Rohrer index calculated from the annual measurement records, which were obtained from the school. According to their current weights, 57.4% of children were normal and 32.2% were overweight or obese, 16.6% of the children overestimated their body weight, and 55.2% had an undistorted body image. Overweight children had desirable lifestyles and dietary habits and presented reasonable weight control behaviors. Compared to those without distortion, the overestimated group had greater interest in weight control ($P$ = 0.003) and dissatisfaction with their body weights ($P$ = 0.011), presented unhealthy reasons to lose weight ($P$ = 0.026), and had higher scores for "feeling sad when comparing own body with others" ($P$ = 0.000) and for "easily getting annoyed and tired" ($P$ = 0.037), even though they had similar obesity indices. More subjects from the overestimation group ($P$ = 0.006) chose drama/movies as their favorite TV programs, suggesting a possible role for the media in body image distortion. These findings suggest that body image distortion can lead preadolescents to develop stress about obesity and unhealthy dieting practices, despite similar obesity indices to those without distorted body images. These results emphasize the importance of having an undistorted body image.

Generation of Stereoscopic Image from 2D Image based on Saliency and Edge Modeling (관심맵과 에지 모델링을 이용한 2D 영상의 3D 변환)

  • Kim, Manbae
    • Journal of Broadcast Engineering
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    • v.20 no.3
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    • pp.368-378
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    • 2015
  • 3D conversion technology has been studied over past decades and integrated to commercial 3D displays and 3DTVs. The 3D conversion plays an important role in the augmented functionality of three-dimensional television (3DTV), because it can easily provide 3D contents. Generally, depth cues extracted from a static image is used for generating a depth map followed by DIBR (Depth Image Based Rendering) rendering for producing a stereoscopic image. However except some particular images, the existence of depth cues is rare so that the consistent quality of a depth map cannot be accordingly guaranteed. Therefore, it is imperative to make a 3D conversion method that produces satisfactory and consistent 3D for diverse video contents. From this viewpoint, this paper proposes a novel method with applicability to general types of image. For this, saliency as well as edge is utilized. To generate a depth map, geometric perspective, affinity model and binomic filter are used. In the experiments, the proposed method was performed on 24 video clips with a variety of contents. From a subjective test for 3D perception and visual fatigue, satisfactory and comfortable viewing of 3D contents was validated.

Implementation of a Vehicle Speed Measurement System Using Image Processing (영상처리에 의한 차량속도 계측 시스템 구현)

  • Park Hyeong taek;Yun Tae won;Hwang Byong won
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.30 no.4C
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    • pp.276-282
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    • 2005
  • These studies developed system as well as its algorithm which can measure traffic flow and vehicle speed on the highway as well as road by using industrial television(ITV) system. This algorithm used the real time processing of dynamic images. The processing algorithm of dynamic images is developed and proved its validity by frame grabber. Frame grabber can process the information of a small number of sample points only instead of the whole pixel of the images. In the techniques of this algorithm, we made approximate contour of vehicle by allocating sampling points in cross-direction of image, and recognized top of contour of vehicle. Applying these technique, we measured the number of passing vehicles of one lane as well as multilane. Speed of each vehicle is measured by computing the time difference between a pair of sample points on two sample Points lines.

Measurement Algorithm of Vehicle Speed Using Real-Time Image Processing (영상의 실시간 처리에 의한 차량 속도의 계측 알고리즘)

  • Seo, Jeong-Goo;Lee, Jeong-Goo;Yun, Tae-Won;Hwang, Byong-Won
    • Journal of Advanced Navigation Technology
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    • v.9 no.1
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    • pp.10-18
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    • 2005
  • These studies developed system as well as its algorithm which can measure traffic flow and vehicle speed on the highway as well as road by using industrial television(ITV) system. This algorithm used the real time processing of dynamic images. The processing algorithm of dynamic images is developed and proved its validity by frame grabber. Frame grabber can process the information of a small number of sample points only instead of the whole pixel of the images. In the techniques of this algorithm, we made approximate contour of vehicle by allocating sampling points in cross-direction of image, and recognized top of contour of vehicle. Applying these technique, we measured the number of passing vehicles of one lane as well as multilane. Speed of each vehicle is measured by computing the time difference between a pair of sample points on two sample points lines.

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The Alteration of Female opposant Types Shown in Melodramas -From 1992 to 2011- (멜로드라마에 나타나는 여성 대립자 유형의 변화 (1990년부터 2011년까지))

  • Lee, Hwa-Jeong
    • The Journal of the Korea Contents Association
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    • v.12 no.10
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    • pp.54-62
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    • 2012
  • This study aims to examine the opposant of conventional images of women against heroines in the genre of TV melodramas having been produced since 2005. To attain the goal, it investigates the alteration of female opposant types in 27 dramas with female opposant in them among the melodramas positioned high in terms of ratings from 1992 to 2011. As a result, first, after 2005, docile tendencies increased in female opposant. Second, pure and feminine appearance increased. Third, women with conservative sexual consciousness increased. Fourth, in relationships with others, they showed more dependent tendencies. Although female opposant in the past were characterized by strong character, unfeminine attitudes, or dressing up the outside, after 2005, female opposant tended to show characteristics more like heroines' in the past. This research result implies that after 2005, there has been alteration in the paradigm defining female image.