• Title/Summary/Keyword: Image Transformation

Search Result 1,071, Processing Time 0.025 seconds

A fMRI study on the cerebral activity induced by Electro-acupuncture on K7(Fuliu) (복류(復溜)(K7) 전침자극(電鍼刺戟)이 functional MRI상 뇌기능(腦機能) 변화(變化)에 미치는 영향(影響))

  • Kang, Jae-hui;Lee, Hyun;Lee, Byung-ryul;Hong, Kwon-eui;Yim, Yun-kyoung;Kim, Yun-jin
    • Journal of Acupuncture Research
    • /
    • v.20 no.4
    • /
    • pp.66-84
    • /
    • 2003
  • Objectve : Recent stuides suggested that there is a strong correlation between acupuncture stimulation and its cortical activation. Another study showed that either positive or negative BOLD effects could be observed depending on anatomical structure in acupuncture. Methods : 1) Subjects and paradigms: Two separate stimulation paradigms were performed in this study. To see the effects of electro-acupuncture stimulation on K7(Fuliu), the experiment was carried out on six healthy volunteers, using the gradient echo sequence with the 3.0T whole-body MRI system(ISOL). After the needle insertion on right K7(Fuliu), 2 Hz of electric stimulation was given for 30 seconds, repeated five times, with 30 seconds' intervals. During the intervals while there was no electro-stimulation, the subjects performed motor task as a reference. The image analysis including motion correction, talairach transformation, and smoothing was done using SPM99. Results: The electro-acupuncture stimulation on K7(Fuliu) activated Brodmann's Areas of 9, 19, 23, 24, 31, 32, 39 which may be the central pathways of the electro-acupuncture stimulation on K7(Fuliu) and those brain areas may be related with the function of the electro-acupuncture stimulation on K7(Fuliu).

  • PDF

A Study on the Characteristics of Popular Traditional Expression in Small Commercial Buildings - Focus on a commercial buildings in a suburb of Taegu - (소규모(小規模) 상업(商業) 건축물(建築物)에 나타난 대중적(大衆的) 전통표현(傳統表現) 특성(特性)에 관(關)한 연구(硏究) - 대구시(大邱市) 인근지역(隣近地域) 상업건축물(商業建築物)을 사례(事例)로 -)

  • Rhee, Dong-Chan;Chang, Soo-Seok;Kim, Jung-Jae
    • Journal of architectural history
    • /
    • v.12 no.4 s.36
    • /
    • pp.63-79
    • /
    • 2003
  • Considering the established research about the characteristics of traditional expression in a contemporary korean architecture, there are two critical problems. the one is that the extent of a case is limited to a public building and a large exhibition building. the other is that the angle of research focus on the viewpoint of specific a level. To settle these problems and supplement a established research, this study is to investigate and analyze the characteristics of popular traditional expression in small commercial buildings. In A viewpoint on the expansion of a case and a various angle, A small commercial buildings is selected as a case. because it is felt that the populace's taste vis-a-vis traditional expression. To investigate and analyze, A main analytic criterion is follows. 1) A expressional method on traditional architectural form 2) A expressional aspect by architectural element 3) A expressional aspect in architectural material 4) A expressional aspect in architectural structure. In consequence we can find out the following results in the process of analysis. 1) In expressional method on traditional architectural form, the traditional expression is represented as the imitation and transformation of a traditional folk house forms, and the embodiment of traditional image 2) In expressional aspect by architectural element, the traditional expression elements is mainly represented at a straw roof and a mud-plastered wall 3) the traditional expression material is mainly straw, timber, small wood boards and mud 4) In expressional aspect in architectural structure, the traditional expression is represented from the viewpoint of decorative expression.

  • PDF

A Study on the Fashion Trends of a Popular Star (대중스타의 패션 트렌드에 관한 연구)

  • Lee, Eun-Sook
    • Journal of the Korea Fashion and Costume Design Association
    • /
    • v.10 no.1
    • /
    • pp.69-78
    • /
    • 2008
  • A new coinage which calls a modern was appeared variously by values, taste, feature of lifestyle and the meaning of a new coinage has influence in the change of lifestyle. Particularly a popular star is a person who situates in the center of a new coinage, his role, behavior, and appearance have great influence in the birth of a new coinage. He is a fashion leader as well as the object of fashion imitation to the new generation being sensitive for fashion. As his fashion is appeared with important fashion icon in fashion market, fashion companies have developed actively star marketing marking him as an advertising model. Therefore, because the fashion trends of a popular star introduce season's fashion trends and can be important factor forecasting fashion behavior of consumer, this study aims at analysis for fashion trends of a popular star including a public entertainer. The dates of this study were collected by TV drama, internet, and magazines, etc. The fashion trends were divided into feminine fashion trend, sexy fashion trend, tomboy fashion trend, and retro fashion trend. Feminine fashion trend was based on feminity but it was classified in masculine look, simple look, chic look, and natural & romantic look according to the standard of a transformation of feminine image. Sexy fashion trend was divided into two sexy images according to the method wrapping oneself in a dress and the method exposing a specific body part. Tomboy fashion trend could be the immature boyish style which concealed bust or hip or pelvis symbolizing feminity. Retro fashion trend could be style being based on 1980's style and Y line. Fashion items as leggings, baby doll dress, tunic style, dot pattern, garsonne look were come into fashion.

  • PDF

A Qualitative Case Study on the Development of Network as Communities of Practice in Welfare Network of S District in Seoul, Korea (실천공동체로서의 네트워크 발달에 대한 질적 사례연구 : 서울시 S구 재가복지연합회 사례를 중심으로)

  • Kim, Young-Sook;Lim, Hyo-Yeon
    • Korean Journal of Social Welfare
    • /
    • v.62 no.3
    • /
    • pp.299-321
    • /
    • 2010
  • The purpose of this study was to analyze the development of social welfare network. The qualitative case study method was utilized from a communities of practice perspective. Depth interviews were conducted among 10 social workers of community welfare agencies who have practiced network activities. Data were analyzed with constant-comparative methods(Strauss and Corbin(1990)). The result are the followings; In incubation stage, the core theme was "collaboration for surmount overcoming difficulties from the bottom". In intergration stage, "acquirement of normative value basement" was emerged. "Reinforcement of solidarity" and "reconfirmation of identity" were drawn as core themes in muturation stage. There were core themes "construction of original image" and "shifting from private connection to public connection" in maintenance stage. Lastly stage a care theme of "qualitative transition" was emerged in transformation.

  • PDF

Vision based 3D Hand Interface Using Virtual Two-View Method (가상 양시점화 방법을 이용한 비전기반 3차원 손 인터페이스)

  • Bae, Dong-Hee;Kim, Jin-Mo
    • Journal of Korea Game Society
    • /
    • v.13 no.5
    • /
    • pp.43-54
    • /
    • 2013
  • With the consistent development of the 3D application technique, visuals are available at more realistic quality and are utilized in many applications like game. In particular, interacting with 3D objects in virtual environments, 3D graphics have led to a substantial development in the augmented reality. This study proposes a 3D user interface to control objects in 3D space through virtual two-view method using only one camera. To do so, homography matrix including transformation information between arbitrary two positions of camera is calculated and 3D coordinates are reconstructed by employing the 2D hand coordinates derived from the single camera, homography matrix and projection matrix of camera. This method will result in more accurate and quick 3D information. This approach may be advantageous with respect to the reduced amount of calculation needed for using one camera rather than two and may be effective at the same time for real-time processes while it is economically efficient.

Invariant Image Matching using Linear Features (선형특징을 사용한 불변 영상정합 기법)

  • Park, Se-Je;Park, Young-Tae
    • Journal of the Korean Institute of Telematics and Electronics S
    • /
    • v.35S no.12
    • /
    • pp.55-62
    • /
    • 1998
  • Matching two images is an essential step for many computer vision applications. A new approach to the scale and rotation invariant scene matching, using linear features, is presented. Scene or model images are described by a set of linear features approximating edge information, which can be obtained by the conventional edge detection, thinning, and piecewise linear approximation. A set of candidate parameters are hypothesized by mapping the angular difference and a new distance measure to the Hough space and by detecting maximally consistent points. These hypotheses are verified by a fast linear feature matching algorithm composed of a single-step relaxation and a Hough technique. The proposed method is shown to be much faster than the conventional one where the relaxation process is repeated until convergence, while providing matching performance robust to the random alteration of the linear features, without a priori information on the geometrical transformation parameters.

  • PDF

Real-time 3D Volumetric Model Generation using Multiview RGB-D Camera (다시점 RGB-D 카메라를 이용한 실시간 3차원 체적 모델의 생성)

  • Kim, Kyung-Jin;Park, Byung-Seo;Kim, Dong-Wook;Kwon, Soon-Chul;Seo, Young-Ho
    • Journal of Broadcast Engineering
    • /
    • v.25 no.3
    • /
    • pp.439-448
    • /
    • 2020
  • In this paper, we propose a modified optimization algorithm for point cloud matching of multi-view RGB-D cameras. In general, in the computer vision field, it is very important to accurately estimate the position of the camera. The 3D model generation methods proposed in the previous research require a large number of cameras or expensive 3D cameras. Also, the methods of obtaining the external parameters of the camera through the 2D image have a large error. In this paper, we propose a matching technique for generating a 3D point cloud and mesh model that can provide omnidirectional free viewpoint using 8 low-cost RGB-D cameras. We propose a method that uses a depth map-based function optimization method with RGB images and obtains coordinate transformation parameters that can generate a high-quality 3D model without obtaining initial parameters.

Development of Female's Ordinary Hanbok Design with Korean Patchwork Image (조각보 이미지를 이용한 여성생활한복 디자인 개발)

  • Choi, Sun-Mi;Yang, Suk-Hyang
    • Fashion & Textile Research Journal
    • /
    • v.9 no.2
    • /
    • pp.145-150
    • /
    • 2007
  • Recently, active movements are occurring to reestablish our own traditional Korean images in all levels of society. One of them is about Ordinary Hanbok. Academics and business sectors are endeavoring to develop comfortable and Korean traditional Hanbok designs and popularize them as well. Based on the facts, the study focuses on developing Ordinary Hanbok designs for women by applying Korean traditional patchwork in order to present handmade, humane senses. First of all, the backgrounds, history and preference of Ordinary Hanbok are discussed through literatures and precedent studies as study methodology. Then, the study is analyzing the formative beauty of Korean traditional patchwork that contains emotions of women in the Chosun Dynasty. After that, it shows Ordinary Hanbok designs developed for women by using checks, free style, and yeoiju patterns of the fabrics dyed with clay and Chinese ink that recently attract people in particular. The results are like followings; First, the limits that excessive transformation of Hanbok may cause the lack of traditional beauty can be covered through using a variety of images of Korean traditional patchwork. Second, diverse face configuration of patchworks has very unique geometric forms so to be easily applied to modern Ordinary Hanbok designs. Third, the sewing technique of patchworks also plays a role as a design factor as important as face configuration. Fourth, utilizing fabric pieces may result in various unplanned face configuration and help resource recycling. Fifth, it is possible to coordinate Hanbok with other ordinary clothes that people normally wear on. Sixth, using patchworks images can encourage developing more active and refined designs added with traditional beauty. Seventh, natural dying and fabrics are eco-friendly, which is good for human health and environment. Finally, more studies should be done on design development based on precedent studies about Ordinary Hanbok. Also, it is important to foster social atmosphere and circumstances where people accept wearing Ordinary Hanbok as our natural culture.

Nondestructive sensing technologies for food safety

  • Kim, M.S.;Chao, K.;Chan, D.E.;Jun, W.;Lee, K.;Kang, S.;Yang, C.C.;Lefcourt, A.M.
    • 한국환경농학회:학술대회논문집
    • /
    • 2009.07a
    • /
    • pp.119-126
    • /
    • 2009
  • In recent years, research at the Environmental Microbial and Food Safety Laboratory (EMFSL), Agricultural Research Service (ARS) has focused on the development of novel image-based sensing technologies to address agro-food safety concerns, and transformation of these novel technologies into practical instrumentation for industrial implementations. The line-scan-based hyperspectral imaging techniques have often served as a research tool to develop rapid multispectral methods based on only a few spectral bands for rapid online applications. We developed a newer line-scan hyperspectral imaging platform for high-speed inspection on high-throughput processing lines, capable of simultaneous multiple inspection algorithms for different agro-food safety problems such as poultry carcass inspection for wholesomeness and apple inspection for fecal contamination and defect detection. In addition, portable imaging devices were developed for in situ identification of contamination sites and for use by agrofood producer and processor operations for cleaning and sanitation inspection of food processing surfaces. The aim of this presentation is to illustrate recent advances in the above agro.food safety sensing technologies.

  • PDF

Multi-scale Texture Synthesis (다중 스케일 텍스처 합성)

  • Lee, Sung-Ho;Park, Han-Wook;Lee, Jung;Kim, Chang-Hun
    • Journal of the Korea Computer Graphics Society
    • /
    • v.14 no.2
    • /
    • pp.19-25
    • /
    • 2008
  • We synthesize a texture with different structures at different scales. Our technique is based on deterministic parallel synthesis allowing real-time processing on a GPU. A new coordinate transformation operator is used to construct a synthesized coordinate map based on different exemplars at different scales. The runtime overhead is minimal because this operator can be precalculated as a small lookup table. Our technique is effective for upsampling texture-rich images, because the result preserves texture detail well. In addition, a user can design a texture by coloring a low-resolution control image. This design tool can also be used for the interactive synthesis of terrain in the style of a particular exemplar, using the familiar 'raise and lower' airbrush to specify elevation.

  • PDF