• Title/Summary/Keyword: 사진영상

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Volumetric Estimation of the Prostate Gland using Computed Tomography in Normal Beagle Dogs (정상 비글견에서 컴퓨터단층촬영술을 이용한 전립선의 부피 평가)

  • Choi, Ji-Young;Choi, Soo-Young;Lee, Ki-Ja;Jeong, Woo-Chang;Han, Woo-Sok;Choi, Ho-Jung;Lee, Young-Won
    • Journal of Veterinary Clinics
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    • v.31 no.3
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    • pp.175-179
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    • 2014
  • The purpose of this study was to determine and compare prostate size using ultrasound and computed tomography (CT). The prostate gland was evaluated in eight normal Beagle dogs. Length, depth, and width of the prostate gland were measured by ultrasound and volume of the prostate was obtained from the two ellipsoid formula (US1, US2). Height, length, width, area, and volume of the prostate gland were measured by CT. Ratios of prostatic height, length, and width to the sixth lumbar vertebral body length were calculated. There was no significant difference between the US1 and US2 method, and between US2 and CT method, respectively. The prostatic volume calculated by US1 method was significantly lower than those with CT (p=0.029). The Upper limits of ratios of prostate length, height, and width to the length of the sixth lumbar vertebra were 1.3, 1.1, and 1.7, respectively. Among these prostate dimensions, prostate length and height could be a useful index in estimating prostate size regardless of body weight.

Scanning Electron Microscopy on Ixodes signatus Nymphs with Particular Reference to Major Physiological Sensory Organs (Ixodes signatus 약충(若蟲)의 생리학적(生理學的) 주요(主要) 감각기관(感覺器官)에 대(對)한 주사전자현미경적(走査電子顯微鏡的) 관찰(觀察))

  • Kang, Yung-bai
    • Korean Journal of Veterinary Research
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    • v.28 no.1
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    • pp.145-154
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    • 1988
  • Ixodes signatus nymphs were subjected to the scanning electron microscopy for the observation of the major physiological sense organs including the Hailer's organ. Finger prints and variable sensory setae were found on the body surface, and especially well developed setae were identified on the article IV and on the anal lobes. A central button-like organelle and numerous small holes were found in the spiracular plate. The Haller's organ was identified at the distal point of the tarsus I and regarded as the major sensory organ, chemoreceptor. Tow types of sensory setae were observed, the shorter ones in front of the organ and the longer ones in distal front as well as near behind of the organ. The fully opened organ was ellipsoidal and a total of seven basiconic sensory pegs rooted deeply and shaped as well arranged hook-like was found inside the organ.

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Study on Site Selection of A/R CDM Using LiDAR Data (LiDAR 자료를 이용한 A/R CDM 대상지 선정에 관한 연구)

  • Guishan, Cui;Park, Taejin;Lee, Woo-Kyun;Lee, Jongyeol;Kwak, Doo-Ahn;Kwak, Hanbin
    • Korean Journal of Remote Sensing
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    • v.28 no.5
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    • pp.587-596
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    • 2012
  • Verifying about eligibility of targeted site is necessary for execute Afforestation and Reforestation Clean Development Mechanism (A/R CDM) project which is followed by system of Kyoto protocol. The site have to be identified by which could not be in conformity with definition of forest. This study tried to propose a technology of classify for site selection of A/R CDM. We chose several parts of Yangpyeng as study area and applied LiDAR data and remotely sensed imagery for considering about tree height, degree of crown closure, and land area which 3 factors for identify forest. LiDAR data was used for offset the shortage of remotely sensed imagery that cannot perfectly determine the forest definition due to absence of 3-dimentional information, but can be obtained from LiDAR. Considering tree height, degree of crown closure, and land area simultaneously by moving window, classified fields to forest and non forest based on pixel size. As a result, 124.06 ha for suitable to doing plantation and approximately 357.02 ha are in negative. Technology that applied for analyzing will provide fundamental methodology not only site selection for A/R CDM, but will be utilized in other Kyoto protocol.

Utilization of Ground Control Points using LiDAR Intensity and DSM (LiDAR 반사강도와 DSM을 이용한 지상기준점 활용방안)

  • Lim, Sae-Bom;Kim, Jong-Mun;Shin, Sang-Cheol;Kwon, Chan-O
    • Spatial Information Research
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    • v.18 no.5
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    • pp.37-45
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    • 2010
  • AT(Aerial Triangulation) is the essential procedure for creating orthophoto and transforming coordinates on the photographs into the real world coordinates utilizing GCPs (Ground Control Point) which is obtained by field survey and the external orientation factors from GPS/INS as a reference coordinates. In this procedure, all of the GCPs can be collected from field survey using GPS and Total Station, or obtained from digital maps. Collecting GCPs by field survey is accurate than GCPs from digital maps; however, lots of manpower should be put into the collecting procedure, and time and cost as well. On the other hand, in the case of obtaining GCPs from digital maps, it is very difficult to secure the required accuracy because almost things at each stage in the collecting procedure should rely on the subjective judgement of the performer. In this study, the results from three methods have been compared for the accuracy assessment in order to know if the results of each case is within the allowance error: for the perceivable objects such as road boarder, speed bumps, constructions etc., 1) GCPs selection utilizing the unique LiDAR intensity value reflected from such objects, 2) using LiDAR DSM and 3) GCPs from field survey. And also, AT and error analysis have been carried out w ith GCPs obtained by each case.

An Analysis on the Newspaper's Layout of the News Stand in NAVER -Focusing on the Websites of 10 dependent Online Newspapers (네이버 뉴스스탠드의 신문지면에 대한 비교분석 -10개 종속형 온라인 신문의 홈페이지를 중심으로)

  • Park, Kwang Soon
    • Journal of Digital Convergence
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    • v.16 no.9
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    • pp.365-374
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    • 2018
  • This study aims at understanding the components of on-line newspaper and how each newspaper's layout configuration is differentiated through the analysis on the websites of 10 general daily newspapers in the news stand of NAVER. The collection of data was implemented twice, and One-Way ANOVA was used as an analyzing way. The content of the analysis was carried out based on the types of visual images, the number of photo-based articles and title-based articles, the size of image for the main story, etc. As a result of analysis, the rate of news articles with the audios, videos, cards and slides differentiated from paper-based newspaper was low, and also the news articles using the informative graphics and the graphic sources were very small in number. As a whole, the newspapers in the news stand of NAVER showed that they attempt to make a distinction of their newspaper layout by using a variety of editorial techniques. The significance of this paper is to offer a basic clue to the editing formation to promote the news consumption of newspapers. Under the circumstance that the ecology of media is rapidly being reformed by new media technology, the continuous study of how the newspaper layout should be changed will be needed.

Development of Algorithms for the Construction of Hydrogeologic Thematic Maps using AvenueTM Language in ArcView GIS (ArcView GIS의 AvenueTM Language를 활용한 수문지질도 작성 알고리즘 개발 및 적용 사례 연구)

  • Kim, Gyoo-Bum;Son, Young-Chul;Kim, Jong-Wook;Lee, Jang-Yong
    • Journal of the Korean Association of Geographic Information Studies
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    • v.8 no.3
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    • pp.107-120
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    • 2005
  • In Korea, MOCT and KOWACO published a standard for lineament map drawings, "The Handbook for the Drawing and Management of Hydrogeologic Map" in 2003. According to this guideline, hydrogeologic and related thematic maps should include characteristics of groundwater quality and quantity. These maps are generally drawn with ArcView GIS 3.x software. The activities of well notation on groundwater level map and Stiff diagram drawings on groundwater quality map require a great deal of efforts because hundreds or thousands of well data, water level data and hydrogeochemical data are produced through many kinds of investigations. As well, lineament density map is very important to survey and explore groundwater in a deep aquifer. In this study we developed some modules for well notation, Stiff diagram drawings, and lineament density value calculation with Avenue$^{TM}$ script and it was revealed that they can be very useful and easy for drawing groundwater thematic maps.

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Analysis of Urban Thermal Environment for Environment-Friendly Spatial Plan (친환경적 공간계획을 위한 도시의 열환경 분석)

  • Lee, Woo-Sung;Jung, Sung-Gwan;Park, Kyung-Hun;Kim, Kyung-Tae
    • Journal of the Korean Association of Geographic Information Studies
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    • v.13 no.1
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    • pp.142-154
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    • 2010
  • The purpose of this study is to analyze the effects of various spatial characteristics on the land surface temperature and to grasp the characteristics of thermal environment by types of urban area in Changwon, Gyeongsangnam-do. The spatial data were consisted LST, normalized difference built-up index(NDBI) and normalized difference vegetation index(NDVI) obtained from Landsat 5 TM and land use and land cover map classified from high resolution digital aerial photograph($10cm{\times}10cm$). The unit space for spatial analysis was built by $500m{\times}500m$ Vector GRID. According to the results of estimation of relationship between thermal environment and spatial characteristics, LST had the highest positive correlation with NDBI by 0.929 and had high positive correlation with impervious area ratio by 0.857. In order to analysis of thermal environment on land use, types of urban area were classified by 4 of residential focus area, industrial focus area, green focus area and mixed area. According to the results of analysis, mean LST of industrial focus area was showed the highest by $21.10^{\circ}C$. But mean LST of green focus area was analyzed the lowest by $18.85^{\circ}C$. In conclusion, the results of this study investigated the effects of spatial characteristics on urban thermal environment and can provide methods and basic informations about land use planning and development density restriction for reduction of urban heat.

The effect of mandibular position and gantry angle on the evaluation of implant site with implant CT (임플랜트 전산화단층사진에서 하악의 위치와 gantry각의 변화가 임플랜트 매식로 평가에 미치는 영향에 관한 연구)

  • Lee Sul-Mi;An Chang-Hyeon;Choi Hang-Moon;Heo Min-Suk;Lee Sam-Sun;Choi Soon-Chul;Park Tae-Won
    • Imaging Science in Dentistry
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    • v.32 no.1
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    • pp.35-39
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    • 2002
  • Purpose: The altered gantry angle during scanning for some multiplanar reconstruction CT program (CT/MPR) may cause distortion of the image. The aim of this study was to ascertain whether there is a image distortion in a reformatted image when the gantry and the object are equally inclined using ToothPix and DentaScan program. Materials and Methods: A resin block model with four cylindrical holes and a human dry mandible were used. Two MPR software packages, ToothPix and DentaScan program, were used for reformatted panoramic images. The block and the gantry were equally inclined at 0°, 15°, and 30°. Results: With ToothPix program, a resin block model with empty holes and a dry mandible showed inclined images in the reformatted panoramic image. Increasing the gantry angle, the depth and inclination of the holes were increased in the reformatted central panoramic images. However, a resin block model with gutta perch a in its holes and a dry mandible with a wire in its mandibular canal didn't show image distortion. With DentaScan program, image distortion was not seen in any situation. Conclusion: ToothPix program may distort the reformatted image when the gantry angle is not at zero degrees. However, with DentaScan program, the patient may be positioned comfortably and the gantry can be adjusted to the patient positioning.

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Scintigraphic Findings of Fibrous Dysplasia (섬유성 골 이형성증의 골 신티그라피 소견)

  • Kim, Jong-Ho;Kim, Jong-Soon;Han, Seung-Soo;Kim, Sang-Eun;Choi, Chang-Woon;Lee, Dong-Soo;Chung, June-Key;Lee, Myung-Chul;Koh, Chang-Soon;Kang, Heung-Sik
    • The Korean Journal of Nuclear Medicine
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    • v.25 no.2
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    • pp.219-226
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    • 1991
  • 골 신티 그라피는 섬유성 골 이형성증의 초기 병소와 다골성 형 섬유성 골 이형성증의 진단에 예민한 검사 방법이나, 양성 또는 악성 골 병변과의 감별진단에 어려움이 있었다. 이에 저자들은 조직학적으로 확진된 섬유성 골 이형성증 환자 17명에서 (단골성 형 12명, 다골성 형 : 5명) $^{99m}Tc-MDP$ (20 mCi 또는 7,400 MBq) 주사후 $2\sim4$시간에 전면, 후면 전신상과 부분상을 얻은 30부위 병소를 X선 사진과 비교분석 하였으며 CT, MRI 영상과 병리조직 소견을 얻었다. 병소 침습 부위별로는 대퇴골-10예, 경골-4, 요골-2, 늑골-2, 척추골-2, 후두골-2, 장골-2, 두정골-1, 하악골-1, 접형골-1, 견갑골-1, 쇄골-1, 척골-1예 였으며 5명의 다골성 형에서는 :우 대퇴골과 우 비골 : 양측 말단 대퇴골 :좌 경골과 좌 대퇴골 :우 요골과 우 장골 양측 대퇴골, 양측 경골, 접형골, 두정골, 척추골, 늑골과 장골이었다. 골 신티 그라피 소견상 30예중 28예에서(28/30, 93.3%) 방사능 섭취 증가를 보였으며 2예에서(2/30, 6.7%)는 정상 방사능 섭취 소견을 보였으나 각각은 X선상 불투명 유리상과 골흡수 병변을 보였다. 하악골의 골 3상 스캔상 병소에 현저한 혈류 증가가 관찰되었다. X선 소견상 30예중 11예에서 (l1/30, 36.7%) 불투명 유리상의 병변을, 골 변형을 동반한 1예를 포함한 18예에서는 (18/30, 60.0%) 골흡수 병변을 보였으며, 1예의 늑골 병변은 정상소견을 보였다(1/30, 3.3%). 이상에서 골 신티 그라피 만으로 섬유성 골 이형성증을 진단하는데는 주의를 요하나 골 대사의 동적 측면인 혈류와 골 재형성 양상 특히, 초기 병변과 단골성 형 침습에서 다골성 형을 진단하는데 필수적이며 결론적으로 골 신티 그라피와 X선 촬영등은 섬유성 골 이형성증 진단에 상호보완적인 검사 방법으로 사료된다.

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An Observation of the Visual Language and the Visual Technology according to the Media Technology (미디어테크놀로지의 발전에 따른 시각언어와 시각테크놀로지의 고찰)

  • 신청우
    • Archives of design research
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    • v.17 no.2
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    • pp.15-22
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    • 2004
  • Recent complex visual culture is the visual world widely magnified according to the images like image, graphics, photograph, movie, and television, etc. by the development of digital technology. Because it conveys meanings and contents inserting sound and letters, it may have multimedia character conveying and communicating information beyond general language and letters. The vision for various images at that time is inseparably connected with language. And imaginative order of image and vision are composed of special way in culture and history. Language is different in society, culture, and history. Accordingly, if visual experience is communicated with language partially, it is difficult to have university. So, role of linguistic order plays an important role in forming and defining the social and cultural differences among the visual systems. Historically various visual and optical devices with this visual language have influenced a lot. These visual technologies are concrete and physical practice determining a way to get together with the subject and the visible object in the visible world. The visual language is connected with dimension like these symbols of images and the dimension like visual technologies to series of historical physical and institutional practices. It determines social visual mode toward object world in one of visual system. Accordingly, this study is to understand visual language with social and historical character according to the changed concept and characters as development of media technology. And it is to explain it in view of visual language as a dimension of symbol and visual technology of institutional and physical practice. After all, it cannot explain the effect on the function and visual mode of visual technology as its technical element only. It also cannot separate with the practice with coherent discourse and the physical and institutional practice. The possibility, technical element of technology contains, does not realize as it is but the effect is always communicated in the social veins and realized with a restriction.

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