• Title/Summary/Keyword: Post Image

Search Result 978, Processing Time 0.027 seconds

Guidelines for Cardiovascular Magnetic Resonance Imaging from the Korean Society of Cardiovascular Imaging (KOSCI) - Part 3: Perfusion, Delayed Enhancement, and T1- and T2 Mapping

  • Im, Dong Jin;Hong, Su Jin;Park, Eun-Ah;Kim, Eun Young;Jo, Yeseul;Kim, Jeong Jae;Park, Chul Hwan;Yong, Hwan Seok;Lee, Jae Wook;Hur, Jee Hye;Yang, Dong Hyun;Lee, Bae-Young
    • Investigative Magnetic Resonance Imaging
    • /
    • v.24 no.1
    • /
    • pp.1-20
    • /
    • 2020
  • This document is the third part of the guidelines for the interpretation and post-processing of cardiac magnetic resonance (CMR) studies. These consensus recommendations have been developed by a Consensus Committee of the Korean Society of Cardiovascular Imaging (KOSCI) to standardize the requirements for image interpretation and post-processing of CMR. This third part of the recommendations describes tissue characterization modules, including perfusion, late gadolinium enhancement, and T1- and T2 mapping. Additionally, this document provides guidance for visual and quantitative assessment, consisting of "What-to-See," "How-To," and common pitfalls for the analysis of each module. The Consensus Committee hopes that this document will contribute to the standardization of image interpretation and post-processing of CMR studies.

The Land-cover Changes and Pattern Analysis in the Tidal Flats Using Post-classification Comparison Method: The Case of Taean Peninsula Region (선분류 후비교법을 이용한 간석지의 토지피복 변화 및 패턴 분석 - 태안반도 지역을 사례로 -)

  • Jang, Dong-Ho;Kim, Chan-Soo;Park, Ji-Hoon
    • Journal of the Korean Geographical Society
    • /
    • v.45 no.2
    • /
    • pp.275-292
    • /
    • 2010
  • This study investigated the land-cover changes in the tidal flat of the Taean peninsula due to man-made environmental changes between 1972 and 2008, through time-series analysis based on a modified post-classification comparison method and multi-temporal satellite images. The analysis revealed that the land-cover of the tidal flat has changed from tidal flat to wetland and from wetland to paddy field between 1972 and 2008. Also, the pattern of detailed land-cover changes is as follows: tidal flat to wetland; lake and saltpan to bare land and paddy field. The accurate classification of each image is needed for the application of the post-classification comparison method. The overall accuracy of the classified images was found to be 95.33% on average, and the Kappa value was 0.941 on average.

Design and Implementation of Flaw Image processing System for Automated Ultrasonic Testing System (자동 초음파 검사를 위한 결함 영상 처리 시스템의 설계 및 구현)

  • Kim, Han-Jong;Park, Jong-Hoon;Kim, Chul-Won
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.14 no.1
    • /
    • pp.225-232
    • /
    • 2010
  • In this study, an automated ultrasonic testing system and post signal and image processing techniques are developed in order to construct ultrasonic flaw images in weldments. Image processing algorithms are built into the flaw image processing system for the automated ultrasonic testing system. The developed signal and image analysis algorithms addressed in this study include an A-Scan data compression algorithm, ultrasonic image amplification algorithm and B-scan flaw image correction algorithm(SAFT). This flaw image processing system for the automated ultrasonic testing system can be applied to various inspection fields.

Dynamic / Static Object Segmentation and Visual Encryption Mechanism for Storage Space Management of Image Information (영상정보의 저장 공간 관리를 위한 동적/정적 객체 분리 및 시각암호화 메커니즘)

  • Kim, Jinsu;Park, Namje
    • Journal of Korea Multimedia Society
    • /
    • v.22 no.10
    • /
    • pp.1199-1207
    • /
    • 2019
  • Video surveillance data, which is used for preemptive or post-emptive action against any event or accident, is required for monitoring the location, but is reducing the capacity of the image data by removing intervals for cost reduction and system persistence. Such a video surveillance system is fixed in a certain position and monitors the area only within a limited angle, or monitors only the fixed area without changing the angle. At this time, the video surveillance system that is monitored only within a limited angle shows that the variation object such as the floating population shows different status in the image, and the background of the image maintains a generally constant appearance. The static objects in the image do not need to be stored in all the images, unlike the dynamic objects that must be continuously shot, and occupy a storage space other than the necessary ones. In this paper, we propose a mechanism to analyze the image, store only the small size image for the fixed background, and store it as image data only for variable objects.

Observation between Clinical Outcomes and the Size of the Syrinx with Magnetic Resonance Image

  • Hwang, Ju-Yeon;Kim, Young-Jin;Oh, Seong-Hoon;Kang, Jae-Kyu;Kim, Young-Soo
    • Journal of Korean Neurosurgical Society
    • /
    • v.40 no.3
    • /
    • pp.169-174
    • /
    • 2006
  • Objective : This study was conducted to examine the correlation between clinical outcomes and the size of the syrinx in post-operative magnetic resonance imaging[MRI] and symptom duration. Methods : The authors investigated twelve patients who underwent various operations for syringomyelia from January 1995 to December 2003. The authors retrospectively analyzed medical records. pre- and post-operative MRI findings, features and durations of symptoms, and the method of surgical treatments. The clinical outcomes were assessed on Prolo scale at 6 months of post-operative period. Results : Neurologic symptoms did not promptly disappear after the shrinkage of syrinx, but post-operative MRI demonstrated most patients showed reductions in the size of the syrinx. There is no statistical relationship between clinical improvements and decrements of the syrinx size. However, patients who underwent surgical treatment within 2 years from the symptom onset had more favorable outcome than those who had operations after 2 years from the onset of symptoms. Conclusion : Change in the size of the syrinx in post-operative MRI is not directly proportional to favorable clinical outcomes. However, symptom duration before surgical treatment has considerable impact on the clinical outcomes.

A Study on Instructional Methods for Illustration Using Digital Media (디지털 매체를 활용한 일러스트레이션 교육 방안에 관한 연구)

  • Yun, Un-Jae
    • Journal of the Korean Society of Costume
    • /
    • v.64 no.6
    • /
    • pp.120-130
    • /
    • 2014
  • The present study aimed to find out the most effective instructional method for illustration to aid the $21^{st}$-century post digital generation learners in their education. Although the literature discusses government-led enactment and revision of educational policy and curriculums and research reports by the Ministry of Education and other government agencies as well as many other research articles deal with futuristic instructional methods, the instructional methods in practice have not fully changed yet. Illustration is a means of visual communication and a subject that best represent 'expressionism' and 'speed' of the post digital generation. The present study exemplifies instructional methods to establish the need for lesson plans that best suit individuality of students and for re-training instructors. Also, the feedback process with students proved that the post digital generation learned Photoshop quickly and improved creativity via image synthesis even in short-term instructions. The present findings can be possibly used as reference data for instructional methods for illustration using digital media that best suits learners of the post digital generation. This being said, further studies should delve into specific instructional methods.

An Unusual Case of Post-Operative Spondylitis Caused by $Mycobacterium$ $Intracellulare$ in an Immunosuppressed Patient

  • Kim, Sung-Hoon;Son, Dong-Wuk;Lee, Sang-Weon;Song, Geun-Sung
    • Journal of Korean Neurosurgical Society
    • /
    • v.50 no.5
    • /
    • pp.460-463
    • /
    • 2011
  • There are few reported cases of post-operative spondylitis caused by $Mycobacterium$ $Intracellulare$. A 75-year-old female presented to our hospital with low back pain and paraparesis after a fall. The radiologic examination revealed compression fractures of L1, L3 and L4 and an epidural hematoma compressing the spinal cord. The dark-red epidural hematoma was urgently evacuated. Four weeks post-operatively, neurologic deficits recurred with fever. On magnetic resonance image, an epidural abscess and osteomyelitis were detected in the previous operative site. Five weeks post-operatively, revision was performed with multiple biopsies. The specimen were positive for acid-fast bacilli and traditional anti-tuberculous medications were started. Because the Polymerase Chain Reaction for non-tuberculous mycobacterium (NTM) was positive, the anti-tuberculous medications were changed to anti-NTM drugs. However, the neurologic deficits did not improve and persistent elevation of erythrocyte sedimentation rate and C-reactive protein were noted. Eight weeks after the revision, $Mycobacterium$ $Intracellulare$ was detected in the specimen cultures. Despite supportive care with medication, the patient died due to multiple organ failure.

A Study on the Utilization of SNS Post Records in Self-History Composition (자기역사 구성에서의 SNS 게시물 기록 적용 연구)

  • Ryu, Han Jo
    • The Korean Journal of Archival Studies
    • /
    • no.64
    • /
    • pp.63-92
    • /
    • 2020
  • The SNS post records were not studied by some or essential characteristics of personal records. Until now, Studies on SNS post records have focused on research on technical characteristics, and studies on identity and online space have been rare. This study argued that SNS postings are records that reflect online identity and that SNS postings are meaningful in recreating events related to online and online. This study also suggested the composition of self-history from an epic self-image of events experienced by individuals from their own historical point of view, and argued that SNS post records perform an important role in the process. To this end, the media characteristics of SNS and the way individuals are used were analyzed together.

A Study on Feminism Expression Style of Modern Denim Fashion (현대 데님 패션에 표현된 페미니즘의 표현양식)

  • 이민경;한명숙
    • The Research Journal of the Costume Culture
    • /
    • v.10 no.4
    • /
    • pp.461-472
    • /
    • 2002
  • The purpose of this study was to analyze the expressive style of radical feminism and post-modern feminism appearing on the contemporary denim fashion by examining pictures from professional fashion magazine Vogue. For this study, I investigated documents to study the characteristic of radical feminism and post-modern feminism and classified the contemporary denim fashion into erotic look, endrogynous look and deconstructive look. The results of study on the expression style of feminism reflected on the contemporary denim fashion were as follows: First, radical feminism emphasizes that women's sexual feature is never inferior to men's. Therefore in denim fashion, erotic style which emphasize on women's sexual beauty is represented by making hot pants, mini skirt, halter blouse of denim and by using colored jeans and flower print or beads on denim. Second, post-modern feminism has been represented by disregarding or intergrating the existed rule as refusing sexual discrimination. It has been represented in fashion as an endrogynous style by representing neutral gender image. Today, it is represented in denim fashion by mixing a different fabric with denim and matching womanish design with mannish design. Third, post-modem feminism are classified into unfixed expression of genders and the deconstructive expression of methodology. The deconstructive expression of denim fashion is represented by using the damage of fabric by making a hole or tearing intentionally or fraying edge of denim. Also the unfinished designs and transformed dressing are used to express the deconstructive character in denim.

  • PDF

Automatic Identification of Road Sign in Mobile Mapping System (모바일매핑시스템을 이용한 도로표지판 자동 추출에 관한 연구)

  • Jeong, Jae-Seung;Jeong, Dong-Hoon;Kim, Byung-Guk;Sung, Jung-Gon
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
    • /
    • 2007.04a
    • /
    • pp.221-224
    • /
    • 2007
  • MMS(Mobile Mapping System) generates a efficient image data for mapping and facility management. However, this image data of MMS has many difficulties in a practical use because of huge data volume. Therefore the important information likes road sign post must be extracted from huge MMS image data. In Korea, there is the HMS(Highway Management System) to manage a national road that acquire the line and condition of road from the MMS images. In the HMS each road sign information is manually inputted by the keyboard from moving MMS. This manually passive input way generate the error like inaccurate position, mistaking input in this research we developed the automatic road sign identifying technique using the image processing and the direct geo-referencing by GPS/INS data. This development brings not only good flexibility for field operations, also efficient data processing in HMS.

  • PDF