• 제목/요약/키워드: edge matching

검색결과 353건 처리시간 0.019초

Myocardial SPECT시 COR에서 위치변화에 따른 Image Uniformity 비교 (Comparison of Image Uniformity Due to Position Shifting in COR on Myocardial SPECT)

  • 임현진;김중현;김재일;임정진;김진의;김현주;이재성;이동수
    • 핵의학기술
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    • 제16권1호
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    • pp.70-75
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    • 2012
  • SPECT 검사는 여러 가지 물리적인 요소들에 의해서 영향을 받기 때문에 정확한 데이터를 획득하는 것이 중요하다. 본 실험은 여러 가지 요인 중 COR에서 심장의 위치를 달리하여 두 중심이 일치할 때와 일치하지 않았을 때 영상의 균일도에 대해서 알아보고자 하였다. Philips사의 Cardio MD장비를 이용하여 cylindrical uniform phantom (직경 6.7 cm, 높이 9 cm), heart insert phantom을 COR과 각각 상 하 좌 우 100 mm 위치에서 실험하였다. Cylindrical uniform phantom과 heart insert phantom에서 획득한 영상은 line profile을 이용하여 phantom과 심장 양쪽 벽에 대한 계수 차이를 비교하였다. 육안평가는 heart insert phantom과 volunteer test를 하였다. Heart insert phantom 실험은 COR과 상 하 좌 우 100 mm 위치에서 수평으로 T-A curve를 나타내면 계수 차가 2.6%, 12.1%, 6.7%, 13.8%, 1.4%로 나타났고, 수직에서는 3.9%, 21.9%, 3.5%, 23.9%, 14.0%로 나타났다. Cylindrical phantom 실험은 수평에서 계수 차가 4.3%, 0.3%, 3.3%, 2.6%, 0.7%로 나타났고, 수직에서는 2.7%, 3.0%, 1.0%, 0.3%, 3.4%로 나타났다. Heart insert phantom과 volunteer test에서 획득한 영상의 육안평가는 COR 위치에서 가장 균등하였고, COR 제외한 위치에서는 약간의 왜곡현상이 나타났다. Phantom 종류에 따라 결과의 차이가 있었지만 육안평가와 종합해보면 심장과 COR 위치가 일치할 때 영상이 가장 균일하였다. 따라서 myocardiac SPECT 검사 시 심장과 COR의 두 중심을 일치시킴으로써 심근관류의 감쇠 또는 증가되는 왜곡현상을 예방하여 진단의 정확성을 높일 수 있을 것이다.

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단추에 관한 연구 -19, 20세기를 중심으로- (The Study on the Buttons (centering around 19th-20th Centuries))

  • 이영란
    • 복식
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    • 제22권
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    • pp.263-276
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    • 1994
  • The achievement of notable social reoforms attained during the period of 19th and 20th centuries needlessly speaking remodelded the social environmental into several different patterns such as :1) high industrialization 2) propensity to consume 3) up graded overall social stands. Accordingly the industrial world of the but-tons too established the mess production syhstem by breaking from convention of hand-craft work of 17th century. The raw materials used in the production line on buttons during the 20th century are almost all-kind of materials one can possibly named including cheap plastic which enabled production lines to produce cheaper but higher productivities of the buttons being produced, The design (incused design) used in the 19-20h centuries are : men landscape, sports features, birds, livestocks, bugs, or geomatric features, tec, 1, The classification o f the buttons by materials Techniques shapes colors marking (Incused design) used in the productionof buttons in the England United States of America Laska Italy france Denmark Japan and India are categolizzed as : natural raw materials and syntetical resines. 1) Of the natural raw materials used are : Matal Enamel Iodine Agate, Coral, Green jade(Jasper) Granite, Wood, Ivory, Horn and bone etc. 2) The sythetical resin used in the button in-dustries are : Artificial jewell glass Acrylic material Styroform Celluloid and Nylon etc. 2. The thecnique quoted in producing buttons are hand craft work inlay work precision casting press mosic dye etching, processing, engraving and embossed carving etc. 3. The major designs used in the buttons in -dustries are : Round shape however elliptical column angular and edge shape often used. 4. The colors used are : The multi-colors were highly used than mono-colored materials such as : Adjoining Color and Contrast Color. The highest consideration to be considered in choosing the colors for the buttons are harmonization and matching factor with the garment or dresses to be wore. 5. The major design(incused design) on the buttons are embodiment and the design were also used in order of abstractive-combination abstractive with has offers much surprising. The button industries during the 19th and 20th centuries were not only the determination factors those can judge the value of self-pride of Nation and which were far beyond the in-dustrial arts in those days but also highly refelected and influenced by cultural sense ideology and self-pride of the Nation of those period. The followings are details of the role of the buttons categolized in the order of functional ornamental and symbolical aspects : 1. The functional role : The functional role of the buttons were simply designed for dress how-ever the buttons beyond from this role of function now a days. 2. The ornamental role : The ornamental role of he button beyond from this role of the button were effectuated by : 1) shape materials colors 2) technique locations size and design (incused design) 3) The ramaterials used for buttons shall not be over looked because it is highly depends on the taste sense and combination of harmony with the garment to be wore. 4) The color of the buttons are made well contrasted with the color of garments just as in the case of other artistical area such as matchs with the color of garment of contrast with brigtness of colors contrasted as complementary color and so and so. 5) The technique being adoped are: precision casting press handcraft inlay work etching mosic etc,. Since the buttons are no longer a simple catching devise used to fasten together the different part of the dress but now it has formed own and occupied the independent role in the garment or dresses location can be de-termined and varying depending on the ideas of designers. The size of the buttons has no specific limits, However the variation has widely dependined on the entire circumperence rhythm contrast harmonization of the garments. 3. The symbolical role : Since the button is no longer a just a simple devise for catching and fastening device used fastening together the different part of the garments but now were built a independent area as major part of the Garment and well reflected all kinds of occupations political background cultural as-pect etc. on the buttons. The design of buttons in the western circles are more simplified but they are polished looks and their techniques of manufacturing are comination of both machanis and handcraft. The colors used in the buttons are pretty well harmonized with garment(dress). Almost all kind of materials can be used in the but-tons however materials used in the buttons are : Bone of livestocks ivory, turtle shell are no longer used because the prevention of cruely of animal. On the contraly the level of buttons indus-try of Korea is far to reach and catch up with the level of western circles. It is highly suggested therefore the but-tons industrial field of Republic of Korea shall place and encouragement in producing beter industrial environment of the buttons based on the traditional and cultural aspect of republic of Korea to produce both manufacturing of qulified and best designed and colored buttons.

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아랍식-말레이문자(Jawi Script) 키보드(Keyboard)에 관한 연구 (A Study on the Keyboard of Jawi Script (Arabic-Malay Script))

  • 강경석
    • 수완나부미
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    • 제3권1호
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    • pp.47-66
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    • 2011
  • Malay society is rooted on the Islamic concept. That Islam influenced every corner of that Malay society which had ever been an edge of the civilizations of the Indus and Ganges. Once the letters of that Hindu religion namely Sanscrit was adopted to this Malay society for the purpose of getting the Malay language, that is, Bahasa Melayu down to the practical literation but in vain. The Sanscrit was too complicated for Malay society to imitate and put it into practice in everyday life because it was totally different type of letters which has many of the similar allographs for a sound. In the end Malay society gave it up and just used the Malay language without using any letters for herself. After a few centuries Islam entered this Malay society with taking Arabic letters. It was not merely influencing Malay cultures, but to the religious life according to wide spread of that Islam. Finally Arabic letters was to the very means that Malay language was written by. It means that Arabic letters had been used for Arabic language in former times, but it became a similar form of letters for a new language which was named as Malay language. This Arabic letters for Arabic language has no problems whereas Arabic letters for Malay language has some of it. Naturally speaking, arabic letters was not designed for any other language but just for Arabic language itself. On account of this, there occurred a few problems in writing Malay consonants, just like p, ng, g, c, ny and v. These 6 letters could never be written down in Arabic letters. Those 6 ones were never known before in trying to pronounce by Arab people. Therefore, Malay society had only to modify a few new forms of letters for these 6 letters which had frequently been found in their own Malay sounds. As a result, pa was derived from fa, nga was derived from ain, ga was derived from kaf, ca was derived from jim, nya was derived from tha or ba, and va was derived from wau itself. Where must these 6 newly modified letters be put on this Arabic keyboard? This is the very core of this working paper. As a matter of course, these 6 letters were put on the place where 6 Arabic signs which were scarecely written in Malay language. Those 6 are found when they are used only in the 'shift-key-using-letters.' These newly designed 6 letters were put instead of the original places of fatha, kasra, damma, sukun, tanween and so on. The main differences between the 2 set of 6 letters are this: 6 in Arabic orginal keyboard are only signs for Arabic letters, on the other hand 6 Malay's are real letters. In others words, 6 newly modified Malay letters were substituted for unused 6 Arabic signs in Malay keyboard. This type of newly designed Malay Jawi Script keyboard is still used in Malaysia, Brunei and some other Malay countries. But this sort of keyboard also needs to go forward to find out another way of keyboard system which is in accordance with the alphabetically ordered keyboard system. It means that alif is going to be typed for A key, and zai shall be typed when Z key is pressed. This keyboard system is called 'Malay Jawi-English Rumi matching keyboard system', even though this system should probably be inconvenient for Malay Jawi experts who are good at Arabic 'alif-ba-ta'order.

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