• International Journal of Internet, Broadcasting and Communication
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• 제11권1호
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• pp.39-46
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• 2019

This paper proposes an adaptive threshold watershed algorithm, which is the method used for image segmentation and boundary detection, which extends the region on the basis of regional minimum point. First, apply adaptive thresholds to determine regional minimum points. Second, it extends the region by applying adaptive thresholds based on determined regional minimum points. Traditional watershed algorithms create over-segmentation, resulting in the disadvantages of breaking boundaries between regions. These segmentation results mainly from the boundary of the object, creating an inaccurate region. To solve these problems, this paper applies an improved watershed algorithm applied with adaptive threshold in regional minimum point search and region expansion in order to reduce over-segmentation and breaking the boundary of region. This resulted in over-segmentation suppression and the result of having the boundary of precisely divided regions. The experimental results show that the proposed algorithm can apply adaptive thresholds to reduce the number of segmented regions and see that the segmented boundary parts are correct.

• 한국지역지리학회지
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• 제19권4호
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• pp.697-711
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• 2013

화성(華城) 연쇄 살인 사건은 공간적, 시간적으로도 현재의 화성시 뿐만 아니라 화성시의 일부인 동탄 신도시와도 관련성이 크지 않다는 리얼리티(reality)에도 불구하고, 대중매체의 선정성으로 인해 사람들은 화성시를 부정적인 지역 이미지(image)를 가진 도시로 인식하게 되었다. 본 연구에서는 화성시의 부정적인 지역 이미지가 영화와 신문기사 등을 통해 어떻게 형성되었는지를 살펴본 후, 동탄 신도시에 거주하는 주민들과 학생들이 이러한 부정적인 지역 이미지를 어떻게 생각하고 있는 지를 주민 인터뷰와 학생들을 대상으로 한 멘탈맵(mental map)의 작성 등을 통해 탐색해 보았다. 이를 통해 장소에 내재된 도시의 부정적인 이미지에 대한 반발로 인해 표출되고 있는 화성시민으로 사는 것과 동탄 신도시 주민으로서 사는 것 사이의 지역 정체성(identity)의 혼란, 살인이라는 무서운 범죄의 장소로서의 상징적 의미와 역동적으로 발전하는 장소로서의 공간적 의미가 양립되고 있는 동탄 신도시의 장소감과 지역 정체성의 혼란의 양상을 드러내고자 하였다.

• 대한핵의학회지
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• 제25권2호
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• pp.186-191
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• 1991

Radionuclide cardiac studies lend themselves exceptionally well to functional imaging. This is especially true for gated blood pool scan (GBP). Making functional images is also possible in radionuclide angiocardiography (RNAC). In this study we tried to validate the functional images obtained from RNAC by comparing it with GBP. Twenty three patients (16 patients with coronary artery diseases, 5 with hypertensive heart diseases, and 2 with nonspecific chest pains) underwent simultaneous RNAC and GBP at the same position (LAO $45^{\circ}$). From both studies, global ejection fraction, regional ejection fraction, phase image, amplitude image, stroke image, paradox image, maximum ejection and maximum filling rates were obtained. Global ejection fraction are almost same in both studies. Regional ejection fractions of apex and inferior portion of left ventricle calculated from RNAC are well correlated with those of GBP. Phase and paradox image, maximum ejection and maximum filling rates were obtained. Global ejection fraction are almost same in both studies. Regional ejection fractions of apex and inferior portion of left ventricle calculated from RNAC are well correlated with those of GBP. Phase and paradox images of RNAC are very similar to those of GBP. However, amplitude and stroke images are different. Regional ejection fractions of the left ventricular base, maximum ejection and maximum filling rates obtained from RNAC are significantly different from those of GBP. In conclusion, albeit all of functional images of RNAC is not same as GBP, regional walt motions and global left ventricular function are expected to be successfully analyzed by phase and paradox image and ejection fraction.

• 한국콘텐츠학회논문지
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• 제8권4호
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• pp.137-146
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• 2008

지역의 정체성을 확보하고 지역경제 활성화를 위한 문화관광개발 정책으로서 차별화된 장소 이미지 정립이 더욱 중요해지고 있다. 지역이 소유하고 있는 문화적 역사적으로 차별화된 장소를 활용한 장소마케팅 전략은 그 지역의 경쟁력강화를 위한 지역개발전략의 일환으로 매우 가치가 크다. 장소 이미지가 차별화된 브랜드로 구축되기 위해서는 그 장소와 지역에 가장 적합한 장소이미지 포지셔닝이 수립 되여야 하고 더불어 다양한 시너지 효과를 창출할 수 있는 종합적인 마케팅전략이 요구되고 있다. 이에 본 연구는 기존의 장소와 장소마케팅 관련 이론과 논의들을 토대로 하멜이 표류한 후 체류했던 역사적 문화적 배경과 장소자산을 가지고 있는 지역을 선정하여, 문화적 활동 공간으로서의 가능성과 보다 효율적인 활용방안을 모색하는데 있다. 이를 위하여 사례 조사를 통하여 역사적 문화적 배경을 고찰하고 브랜드화 및 장소 이미지 판촉과 관련한 제안, 그리고 종합적 이미지 구축을 위한 효율적인 방안모색과 자원화의 가능성을 도출하고자 하였다.

• 대한건축학회연합논문집
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• 제9권3호
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• pp.1-8
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• 2007

Heidegger's speculation on "Disclosure" makes it possible to know on image expression fundamentally. "Disclosure" means that the 'earth' and the 'world' are not fixed into one, but harmonize dynamically with each other under continuous mutual tension and mutual support. When they are well-weaved with each other, the two ways are collectively defined as "disclosure Image". In regard to the technique, the study analyzed 'allegory' and 'reactivation'. The former refers to showing image potentially, while the latter means embodying and revealing image apparently. Le Corbusier's late Architecture provides a simultaneous reactivation of various images through continuous cross-weaving rather than being inclined to either the earth or the world.

• International Journal of Advanced Culture Technology
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• 제7권1호
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• pp.64-69
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• 2019

With the advent of the fourth industry, the need for office automation with automatic character recognition capabilities is increasing day by day. Therefore, in this paper, we study a character recognition algorithm that effectively recognizes a new experimental data character by using learning data characters. The proposed algorithm computes the degree of similarity that the structural regions of learning data characters match the corresponding regions of the experimental data character. It has been confirmed that satisfactory results can be obtained by selecting the learning data character with the highest degree of similarity in the matching process as the final recognition result for a given experimental data character.

• Asian Pacific Journal of Cancer Prevention
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• 제15권8호
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• pp.3619-3623
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• 2014

Background: The aim of the study was to evaluate the vaginal dose and toxicity in patients of cervical cancer treated with image guided brachytherapy at our institute. Materials and Methods: Thirty-five patients treated with image based brachytherapy for cervical cancer were included. Vaginal contouring was done on MRI at brachytherapy and with CT scans of subsequent brachytherapy fractions. Dose volume parameters (DVH) were reported in accordance with the GEC-ESTRO guidelines. These were correlated with vaginal toxicity (assessed by CTCAE version 3) and quality of sexual life assessed at one year of completion of treatment. Results: Vaginal shortness was observed in 22 out of 30 (62.8%) patients, Nine (25.7%) had vaginal dryness and in 10 (28.5%) patients, there was contact bleeding. No association could be demonstrated between the dose volume parameters and vaginal toxicity in the present study. Conclusions: The lack of association between dose volume parameters of vagina with vaginal morbidity may be due to uncertainties involved in the delineation of vaginal wall and dosimetry. Future research is required to accurately define vaginal dose distribution to study its correlation with vaginal morbidity. Vaginal morbidity needs to be documented in order to improve the sexual outcome in these patients.

• 한국지역지리학회지
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• 제17권6호
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• pp.726-737
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• 2011

이 연구는 대구광역시의 새로운 도시 브랜드인 '메디시티 대구'의 등장 과정을 살폈다. 또한, 이 연구는 또한 '메디시티 대구'라는 브랜드가 가지는 수동적인 장소 이미지와 능동적인 장소 이미지를 고찰하였다. 수동적인 장소 이미지는 이 도시 브랜드에 대한 대학생들의 인식을 설문조사하여 파악되었다. 반면에, 능동적인 장소 이미지는 도시 당국과 홍보관계자들이 이 브랜드를 통해 구축하려는 도시 이미지 전략과 더불어 이미지 구현을 위한 경관과 이벤트 등을 통해 파악되었다. 대구광역시는 '메디시티'라는 새로운 도시 이미지를 이용하여 도시 경쟁력을 확보하고 지역경제의 활성화를 꾀하고 있다. 하지만, 이러한 의도와 달리 새로운 도시 이미지 확산에 어려움을 겪고 있고, 의료산업이나 의료서비스를 도시이미지로 내세우는 다른 도시들과의 차별성을 확보하는데 한계가 있다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제7권11호
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• pp.2737-2753
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• 2013

In this study, we propose a novel salient object detection strategy based on regional contrast and relative spatial compactness. Our algorithm consists of four basic steps. First, we learn color names offline using the probabilistic latent semantic analysis (PLSA) model to find the mapping between basic color names and pixel values. The color names can be used for image segmentation and region description. Second, image pixels are assigned to special color names according to their values, forming different color clusters. The saliency measure for every cluster is evaluated by its spatial compactness relative to other clusters rather than by the intra variance of the cluster alone. Third, every cluster is divided into local regions that are described with color name descriptors. The regional contrast is evaluated by computing the color distance between different regions in the entire image. Last, the final saliency map is constructed by incorporating the color cluster's spatial compactness measure and the corresponding regional contrast. Experiments show that our algorithm outperforms several existing salient object detection methods with higher precision and better recall rates when evaluated using public datasets.

• 한국주거학회논문집
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• 제17권3호
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• pp.31-40
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• 2006

The purpose of this study is to grasp the present state of a outdoor space planning and to analysis plan characteristics in based on regional characteristics in Housing complex plan. The analysis result of this study is as follows : first, we know that the right of regional characteristics is appearing variously every research workers. also an analysis about regional characteristics that should be considered in housing complex plan was insufficient. Second, regional characteristics can be classified into 5 factors. These are classified as a context of location, city link, life atmosphere, needs of locals and creation of image. Third, it has originality against other housing complex to graft items connected with 'U contest' on outdoor space planning. Also, it has affirmatively effected on image of Buk-gu and recognition of Dong beyn-dong and Seo beyn-dong. It is get out of the uniform design by a planning based on land and surrounding environment in arrangement and forms. Also residents have the satisfaction and pride in arrangement considering the climate of a region and security of the green space.