• 제목/요약/키워드: 3D video

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영상 디자인의 다양성에 관한 연구-1990년대 국내외 영화 크레딧을 중심으로- (A study for varieties of image design-With the credits of cinema in 1990s-)

  • 김인철
    • 디자인학연구
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    • 제20권
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    • pp.253-262
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    • 1997
  • 적지 않은 미디어 비평가들이 이미 예견했듯이 바야흐로 영상 이미지 시대가 시작되었다. 활자매체 시대와는 달리 매우 다양한 영상 문화의 진행과 변화 속에서 시각 디자이너의 감각 역시 영상화를 요구하고 있다. 그러한 이유로는 이른바 비디오 문화의 일반화를 들 수 있다. 이제 영화는 손쉽게 보면서 느끼는, 그야말로 생활화된 요소로 자리 잡았다. 영화에서 비롯된 광고 또는 물건이 유행할 정도의 영상시대가 도래한 것이다. 영상 시대를 맞아 시각 디자이너의 참여가 어느 때 보다 요구되고 있고 그러기 위해서는 시각 디자인 마인드의 영상화와 함께 영화의 이해가 무엇보다 먼저 요구되고 있다. 그러기 위해 먼저 눈 여겨 보아야할 부분이 크레딧(credit) 타이틀이다. 크레딧은 영화의 시작과 끝 부분에 내용의 이해를 돕기 위해 주로 문자의 형식을 빌어 나타나는 영화의 요소이다. 이 부분은 미국의 쏠배스(Saul Bass)등이 이미 선구적 위치에서 제작한 분야로, 컴퓨터로 대표되는 기술의 발전은 90년대에 영화 크레딧을 매우 다양하게 만들고 있다. 기술의 발전과 더불어 영화의 흥미 유발에 도움이 되는 내용적 측면도 고려해야만 한다. 개서있는 크레딧은 60, 70년대’007’영화 씨리즈에서 볼 수 있었고 80년대 들어 다양함의 시도를 보이다가 90년대에 들어 소프트웨어에 의한 2D, 3D 및 애니메이션 또는 움직이는 자막, 캐릭터의 등장 등으로 다양함을 보여주고 있다. 국내영화는 다양성에 있어서 비교적 단조롭다고 할 수 있다. 제목의 다양함이 조금씩 늘어가는 반면에 오프닝 크레딧 전체의 다양한 변화는 아쉽게도 보이질 않고 있다. 우리 영화에 있어서 흥미 있는 제작과 아울러 내용의 이해를 자연스럽게 유도하는 크레딧 타이틀의 제작을 기대해 본다.

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A of Radiation Field with a Developed EPID

  • Y.H. Ji;Lee, D.H.;Lee, D.H.;Y.K. Oh;Kim, Y.J.;C.K. Cho;Kim, M.S.;H.J. Yoo;K.M. Yang
    • 한국의학물리학회:학술대회논문집
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    • 한국의학물리학회 2003년도 제27회 추계학술대회
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    • pp.67-67
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    • 2003
  • It is crucial to minimize setup errors of a cancer treatment machine using a high energy and to perform precise radiation therapy. Usually, port film has been used for verifying errors. The Korea Cancer Center Hospital (KCCH) has manufactured digital electronic portal imaging device (EPID) system to verify treatment machine errors as a Quality Assurance (Q.A) tool. This EPID was consisted of a metal/fluorescent screen, 45$^{\circ}$ mirror, a camera and an image grabber and could display the portal image with near real time KIRAMS has also made the acrylic phantom that has lead line of 1mm width for ligh/radiation field congruence verification and reference points phantom for using as an isocenter on portal image. We acquired portal images of 10$\times$10cm field size with this phantom by EPID and portal film rotating treatment head by 0.3$^{\circ}$, 0.6$^{\circ}$ and 0.9$^{\circ}$. To check field size, we acquired portal images with 18$\times$18cm, 19$\times$19cm and 20$\times$20cm field size with collimator angle 0$^{\circ}$ and 0.5$^{\circ}$ individually. We have performed Flatness comparison by displaying the line intensity from EPID and film images. The 0.6$^{\circ}$ shift of collimator angle was easily observed by edge detection of irradiated field size on EPID image. To the extent of one pixel (0.76mm) difference could be detected. We also have measured field size by finding optimal threshold value, finding isocenter, finding field edge and gauging distance between isocenter and edge. This EPID system could be used as a Q.A tool for checking field size, light/radiation congruence and flatness with a developed video based EPID.

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배구 블로킹 시 스텝 방법에 대한 운동학적 비교 분석 (Comparative Analysis of the Kinematics of Types of Step during Blocking in Volleyball)

  • 정지운;염창홍;박영훈;박태진;서국웅;서국은
    • 한국운동역학회지
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    • 제18권1호
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    • pp.73-83
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    • 2008
  • 이 연구의 목적은 배구 블로킹 시 스텝 방법에 따른 남자 대학 배구선수 7명과 체육 전공 남자 대학생 7명을 대상으로 운동학적 특성을 3차원 영상분석으로 구명하는 데 그 목적이 있다. 이 연구의 결과는 다음과 같다. 1. 모든 스텝 방법에서 숙련 그룹이 미숙련 그룹보다 이지 시 최대 수직속도에서 빠르게 나타났고, 점프높이는 높게 나타났다. 2. 크로스 오버 스텝 블로킹 시 엉덩 관절, 무릎 관절, 발목 관절각도의 E1에서 숙련 그룹이 미숙련 그룹보다 작게 굴곡하는 것으로 나타났다. 3. 모든 스텝 방법에서 엉덩 관절, 무릎 관절, 발목 관절의 최대 각속도는 E2에서 나타났다. 4. 크로스 오버 스텝 블로킹 시 엉덩 관절, 무릎 관절, 발목 관절각속도의 E2에서 숙련 그룹이 미숙련 그룹보다 느린 것으로 나타났다. 결론적으로 상지의 사용이 자유로운 크로스 오버 스텝 블로킹이 점프높이를 통한 방어 능력 개선에는 다소 효율적인 방법인 것으로 판단된다.

유도 공중회전낙법의 COG변인 분석 (A COG Variable Analysis of Air-rolling-breakfall in Judo)

  • 김의환;정재욱;김성섭
    • 한국운동역학회지
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    • 제15권3호
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    • pp.117-132
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    • 2005
  • It was to study a following research of "A Kinematic Analysis of Air-rolling-breakfall in Judo". The purpose of this study was to analyze the Center of Gravity(COG) variables when performing Air-rolling-breakfall motion, while passing forward over(PFO) to the vertical-hurdles(2m height, take off board 1m height) in judo. Subjects were four males of Y. University squad, who were trainees of the demonstration exhibition team, representatives of national level judoists and were filmed by four 5-VHS 16mm video cameras(60field/sec.) through the three dimensional film analysis methods.COG variable were anterior-posterior directional COG and linear velocity of COG, vertical directional COG and linear velocity of COG. The data collections of this study were digitized by KWON3D program computed The data were standardized using cubic spline interpolation based by calculating the mean values and the standard deviation calculated for each variables. When performing the Air-rolling-breakfall, from the data analysis and discussions, the conclusions were as follows : 1. Anterior-posterior directional COG(APD-COG) when performing Air-rolling-breakfall motion, while PFO over to the vertical-hurdles(2m height) in judo. The range of APD-COG by forward was $0.31{\sim}0.41m$ in take-off position(event 1), $1.20{\sim}1.33m$ in the air-top position(event 2), $2.12{\sim}2.30m$ in the touch-down position(event 3), gradually and $2.14{\sim}2.32m$ in safety breakfall position(event 4), respectively. 2 The linear velocity of APD-COG was $1.03{\sim}2.14m/sec$. in take-off position(event 1), $1.97{\sim}2.22m/sec$. gradually in the air-top position(event 2), $1.05{\sim}1.32m/sec$. in the touch-down position (event 3), gradual decrease and $0.91{\sim}1.23m/sec$. in the safety breakfall position(event 4), respectively. 3. The vertical directional COG(VD-COG) when performing Air-rolling-breakfall motion, while PFO to the vertical-hurdles(2m height) in judo. The range of VD-COG toward upward from mat was $1.35{\sim}1.46m$ in take-off position(event 1), the highest $2.07{\sim}2.23m$ in the air-top position(event 2), and after rapid decrease $0.3{\sim}0.58m$ in the touch-down position(event 3), gradual decrease $0.22{\sim}0.50m$ in safety breakfall position(event 4), respectively. 4. The linear velocity of VlJ.COG was $1.60{\sim}1.87m/sec$. in take-off position(event 1), $0.03{\sim}0.08m/sec$. gradually in the air-top position(event 2), $-4.37{\sim}\;-4.76m/sec$. gradual decrease in the touch-down position(event 3), gradual decrease and -4.40${\sim}\;-4.77m/sec$. in safety breakfall position(event 4), respectively. When performing Air-rolling-breakfall showed parabolic movement from take-off position to air-top position, and after showed vertical fall movement from air-top position to safety breakfall. In conclusion, Ukemi(breakfall) is safety fall method Therefore, actions need for performing safety fall movement, that decrease and minimize shock and impact during Air-rolling-breakfall from take-off board action to air-top position must be maximize of angular momentum, and after must be minimize in touch-down position and safety breakfall position.

영유아 응급처치 교육에서의 동영상 활용 사례기반학습의 효과 (The Influence of Case-Based Learning using video In Emergency care of infant and toddlers)

  • 조혜영;강경아
    • 한국산학기술학회논문지
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    • 제17권12호
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    • pp.292-300
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    • 2016
  • 본 연구는 보건계열 대학생을 대상으로 영유아 응급처치에서 동영상을 활용한 사례기반학습을 제공한 실험군과 전통적인 이론학습을 제공한 대조군과의 학습효과 차이를 비교함으로써 동영상을 활용한 사례기반학습의 효과를 평가하는데 그 목적이 있다. 연구 참여자는 J시에 위치한 D대학교에 재학하는 57명의 보건계열 학생들로서 실험군과 대조군으로 각각 29명과 28명으로 나뉘어 구성되었다. 본 연구는 비동등성 대조군 전후시차 설계에 의한 유사 실험연구로 실험군에게는 동영상을 활용한 사례기반학습을 실시하였고, 대조군에게는 전통적인 강의식 교육을 실시하였다. 동영상을 활용한 사례기반 학습은 1주일에 1회씩 3회를 실시하였으며 회당 180분이 소요되었다. 교육 전,후로 연구 참여자를 대상으로 영유아 응급처치 지식과 술기자신감, 학업적 자기효능감 및 문제해결능력을 조사하였다. 연구의 자료수집과 중재는 2014년 11월에서 12월까지 이루어졌다. 수집된 자료는 SPSS 20.0 Program을 사용하였으며 paired t-test, unpaired t-test, $x^2-test$로 분석하였다. 연구결과, 술기자신감에서 실험군이 대조군에 비해 통계적으로 유의하게 향상되었다(p<001). 또한 학업적 자기효능감의 하부영역 중 과제난이도 조절에서 실험군이 대조군에 비해 통계적으로 유의하게 향상되었다(p=.029). 문제해결능력의 하부영역 중 접근회피양식(p=.001)과 문제해결자신감(p=.040)에서 실험군이 대조군에 비해 통계적으로 유의하게 향상되었다. 본 연구결과를 통해 동영상을 활용한 사례기반학습은 간호보건계열 대학생의 전문역량 강화를 위한 효과적인 학습법임을 알 수 있었다. 따라서 다양한 교육 콘텐츠를 활용한 사례기반학습이 개발되고 확대 적용되며, 학습효과에 대한 반복연구가 이루어지길 제언한다.

착지 높이와 지면 형태가 하지 관절에 미치는 영향 (The Effect on the Lower Limbs Joint as the Landing Height and Floor Pattern)

  • 김은경
    • 한국운동역학회지
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    • 제21권4호
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    • pp.437-447
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    • 2011
  • In this study, the lower limbs joints were analyzed for features based on the biomechanical characteristics of landing techniques according to height and landing on the ground type (flats and downhill). In order to achieve the objectives of the study, changes were analyzed in detail contents such as the height and form of the first landing on the ground at different angles of joints, torso and legs, torso and legs of the difference in the range of angular motion of the joint, the maximum angular difference between joints, the lower limbs joints difference between the maximum moment and the difference between COM changes. The subjects in this study do not last six months did not experience joint injuries 10 males in 20 aged were tested. Experimental tools to analyze were the recording and video equipment. Samsung's SCH-650A model camera was used six units, and the 2 GRF-based AMTI were used BP400800 model. 6-unit-camera synchronized with LED (photo cell) and Line Lock system were used. the output from the camera and the ground reaction force based on the data to synchronize A/D Syc. box was used. To calculate the coordinates of three-dimensional space, $1m{\times}3m{\times}2m$ (X, Y, Z axis) to the size of the control points attached to the framework of 36 markers were used, and 29 where the body was taken by attaching a marker to the surface. Two kinds of land condition, 40cm and 60cm in height, and ground conditions in the form of two kinds of flat and downhill slopes ($10^{\circ}$) of the landing operation was performed and each subject's 3 mean two-way RM ANOVA in SPSS 18.0 was used and this time, all the significant level was set at a=.05. Consequently, analyzing the landing technique as land form and land on the ground, the changes of external environmental factors, and the lower limbs joints' function in the evaluation were significantly different from the slopes. Landing of the slop plane were more load on the joints than landing of plane. Especially, knee extensor moment compared to the two kinds of landing, slopes plane were approximately two times higher than flat plane, and it was statistical significance. Most of all not so much range of motion and angular velocity of the shock to reduce stress was important. In the further research, front landing as well as various direction of motion of kinetic, kinetic factors and EMG variables on lower limbs joints of the study in terms of injury-prevention-approach is going to be needed.

시간의 조정을 통한 내러티브 연구 : <데드 아일랜드> 예고편 분석을 중심으로 (A Study on Narrative by the Control of the Time: Focused on the Analysis of the Trailer for Dead Island)

  • 노철환
    • 만화애니메이션 연구
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    • 통권40호
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    • pp.397-421
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    • 2015
  • 새로움은 전통의 틀을 활용함과 동시에 극복하면서 태어난다. 대표적인 고전 내러티브는 아리스토텔레스의 "시학"을 그 시작으로 삼는다. "시학"은 3막구조, 미메시스와 카타르시스, 플롯(미토스)과 캐릭터(에토스), 깨달음과 반전 등을 극작(dramatrurgy)의 근간으로 제시했다. 내러티브의 핵심은 인물을 설정하고, 그들이 겪는 사건의 원인에서 결과에 이르는 과정이다. 이때 극적 효과를 높이기 위해 플롯이 강조된다. 아리스토텔레스가 효과적인 이야기를 위해 가장 중요하다고 여긴 플롯은 고전 내러티브만이 아니라, 내러티브적 성향을 가지고 있는 현대 모든 영상물에서도 그 중요성이 두드러진다. 본 연구는 "시학" 이래 구축된 전통적인 내러티브 방식에 대한 이해와 함께, 새로운 플롯 활용의 사례로서, 2011년 칸광고제에서 인터넷영화 부문 수상작인 <데드 아일랜드>의 예고편(이하 ''로 표기)을 분석한다. 예고편은 보다 많은 관객 또는 소비자를 만들기 위한 목적을 가진 광고이다. 은 역할에 충실한 광고임과 동시에 완성된 내러티브를 가진 3D 단편 애니메이션 작품이다. 본편 게임과 시공간 배경과 세계관을 공유할 뿐, 전혀 다른 인물들과 사건으로 진행된다. 그 인물과 사건이 특별한 것만은 아니다. 대신 은 아리스토텔레스가 한 번도 다루지 않은 시간의 개념을 조정함으로써 독특한 플롯 구성을 선보인다. 특히 비선형적(non-linear)인 구조로 원인과 결과라는 시간적 연계가 독특하게 형성되어 있다. 본 연구는 시간의 배열, 방향, 속도 조정을 통해서 이 평범한 내러티브를 어떻게 극복하고, 의미 창출에 도달하는지 알아본다. 이를 위해 내러티브와 쇼트분석을 시도한다. 나아가 영상물의 내러티브가 가질 수 있는 시간 변형의 또 다른 개념의 존재를 모색한다. 이를 위해 "시학"의 주요 개념과 함께 주네트($G{\acute{e}}rard$ Genette)의 내러티브 연구를 참조한다.

롤러신발과 일반신발의 착용 후 보행 시 하지근의 근전도 비교 (The Effects of Wearing Roller Shoes on Muscle Activity in The Lower Extremity During Walking)

  • 채원식;임영태;이민형;김정자;김연정;장재익;박원균;진재흥
    • 한국운동역학회지
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    • 제16권3호
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    • pp.137-148
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    • 2006
  • The purpose of this study was to compare muscle activity in the lower extremity during walking wearing jogging and roller shoes. Twelve male middle school students (age: 15.0 yrs, height 173.7 cm, weight 587.7 N) who have no known musculoskeletal disorders were recruited as the subjects. Seven pairs of surface electrodes (QEMG8, Laxtha Korea, gain = 1,000, input impedance >$1012{\Omega}$, CMMR >100 dB) were attached to the right-hand side of the body to monitor the rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), biceps femoris (BF), tibialis anterior (TA), and medial (GM) and lateral gastrocnemius (GL) while subjects walked wearing roller and jogging shoes in random order at a speed of 1.1 m/s. An event sync unit with a bright LED light was used to synchronize the video and EMG recordings. EMG data were filtered using a 10 Hz to 350 Hz Butterworth band-passdigital filter and further normalized to the respective maximum voluntary isometric contraction EMG levels. For each trial being analyzed, five critical instants and four phases were identified from the recording. Averaged IEMG and peak IEMG were determined for each trial. For each dependent variable, paired t-test was performed to test if significant difference existed between shoe conditions (p<.05). The VM, TA, BF, and GM activities during the initial double limb stance and the initial single limb stance reduced significantly when going from jogging shoe to roller shoe condition. The decrease in EMG levels in those muscles indicated that the subjects locked the ankle and knee joints in an awkward fashion to compensate for the imbalance. Muscle activity in the GM for the roller shoe condition was significantly greater than the corresponding value for the jogging shoe condition during the terminal double limb stance and the terminal single limb stance. Because the subjects tried to keep their upper body weight in front of the hip to prevent falling backward, the GM activity for the roller shoe condition increased. It seems that there are differences in muscle activity between roller shoe and jogging shoe conditions. The differences in EMG pattern may be caused primarily by the altered position of ankle, knee, and center of mass throughout the walking cycle. Future studies should examine joint kinematics during walking with roller shoes.

흉부CT 검사 시 HRCT 영상 재구성의 유용성 (Usefulness Evaluation of HRCT using Reconstruction in Chest CT)

  • 박성민;김긍식;강성민;유병규;이기배
    • 대한디지털의료영상학회논문지
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    • 제17권1호
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    • pp.13-18
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    • 2015
  • Purpose : Skip the repetitive HRCT axial scan in order to reduce the exposure of patients during chest HRCT scan, Helical Scan Data into a reconstructed image, and exposure of the patient change and visually evaluate the usefulness of the HRCT images. Materials and method : Patients were enrolled in the survey are 50 people who underwent chest CT scans of patients who presented to the hospital from January 2015 to March 2015. 50 people surveyed 22 people men and 28 people women people showed an average distribution of 30 to 80 years age was 48 years. 50 patients to Somatom Sensation 64 ch (Siemens) model with 120 kVp tube voltage to a reference mAs tube current to mAs (Care dose, Siemens) as a whole, including the lungs and the chest CT scan was performed. Scan upon each patient CARE dose 4D (Automatic exposure control, Siemens Medical Solution Erlangen, Germany) was to maintain the proper radiation dose scan every cross-section through a device that automatically adjusts the tube current of. CT scan is the rotation time of the Tube slice collimation, slice width 0.6 mm, pitch factor was made under the terms of 1.4. CT scan obtained after the raw data (raw data) to the upper surface of the axial images and coronal images for each slice thickness 1 mm, 5 mm intervals in the high spatial frequency calculation method (hight spatial resolution algorithm, B60 sharp) was the use of the lung window center -500 HU, windows were reconstructed into images in the interval -1000 HU to see. Result : 1. Measure the total value of DLP 50 patients who proceed to chest CT group A (Helical Scan after scan performed with HRCT) and group B (Helical Scan after the HR image reconstruction to the original data) compared with the group divided, analysis As a result of the age, but show little difference for each age group it had a decreased average dose of about 9%. 2. A Radiation read the results of the two Radiologist and a doctor upper lobe and middle lobe of the lung takes effect the visual evaluation is not a big difference between the two images both, depending on the age of the patient, especially if the blood vessels of the lower lobe (A: 3.4, B: 4.6) and bronchi(A: 3.8, B4.7) image shake caused by breathing in anxiety (blurring lead) to the original data (raw data) showed that the reconstructed image is been more useful in diagnostic terms. Conclusion : Scan was confirmed a continuous, rapid motion video to get Helical scan is much lower lobe lung reduction in visual blurring, Helical scan data to not repeat the examination by obtaining HRCT images reorganization reduced the exposure of the patient.

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국산 Fluorescence in Situ Hybridization 시스템을 이용한 다양한 검체에서의 염색체 분석 (Chromosome Analysis in Clinical Samples by Chromosome Diagnostic System Using Fluorescence in Situ Hybridization)

  • 문신용;방명걸;오선경;류범용;황도영;정병준;최진;손철;장준근;김종원;김석현;최영민
    • Clinical and Experimental Reproductive Medicine
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    • 제24권3호
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    • pp.335-340
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    • 1997
  • Fluorescence in situ hybridization (FISH) techniques allow the enumeration of chromosome abnormalities and from a great potential for many clinical applications. In order to produce quantitative and reproducible results, expensive tools such as a cooled CCD camera and a computer software are required. We have developed a Chromosome Image Processing System (Chips) using FISH that allows the detection and mapping of the genetic aberrations. The aim of our study, therefore, is to evaluate the capabilities of our original system using a black-and-white video camera. As a model system, three repetitive DNA probes (D18Z1, DXZ1, and DYZ3) were hybridized to variety different clinical samples such as human metaphase spreads and interphase nuclei obtained from uncultured peripheral blood lymphocytes, uncultured amniocytes, and germ cells. The visualization of the FISH signals was performed using our system for image acquisition and pseudocoloring. FISH images were obtained by combining images from each of probes and DAPI counterstain captured separately. Using our original system, the aberrations of single or multiple chromosomes in a single hybridization experiment using chromosomes and interphase nuclei from a variety of cell types, including lymphocytes, amniocytes, sperm, and biopsied blastomeres, were enabled to evaluate. There were no differences in the image quality in accordance with FISH method, fluorochrome types, or different clinical samples. Always bright signals were detected using our system. Our system also yielded constant results. Our Chips would permit a level of performance of FISH analysis on metaphase chromosomes and interphase nuclei with unparalleled capabilities. Thus, it would be useful for clinical purposes.

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