• Title/Summary/Keyword: Differential Image

Search Result 600, Processing Time 0.027 seconds

An Analysis on Face Recognition system of Housdorff Distance and Hough Transform (Housdorff Distance 와 Hough Transform을 적용한 얼굴인식시스템의 분석)

  • Cho, Meen-Hwan
    • Journal of the Korea Computer Industry Society
    • /
    • v.8 no.3
    • /
    • pp.155-166
    • /
    • 2007
  • In this paper, captured face-image was pre-processing, segmentation, and extracting features from thinning by differential operator and minute-delineation. A straight line in slope-intercept form was transformed at the $r-\theta$ domain using Hough Transform, instead of Housdorff distance are extract feature as length, rotation, displacement of lines from thinning line components by differentiation. This research proposed a new approach compare with Hough Transformation and Housdorff Distance for face recognition so that Hough transform is simple and fast processing of face recognition than processing by Housdorff Distance. Rcognition accuracy rate is that Housdorff method is higher than Hough transformation's method.

  • PDF

A study on Improvement of Amenity in the Coastal Landscapes - centered to the ports of Busan - (해양경관의 어메니티 제고에 관한 연구 - 부산 항만을 중심으로 -)

  • Yhang, Wii-Joo;Gu, Bon-A
    • The Journal of Fisheries Business Administration
    • /
    • v.38 no.3
    • /
    • pp.53-65
    • /
    • 2007
  • This study was to analyze amenity of the port landscapes for North port, South port, and Gamcheon port in Busan. Amenity related variables came from Semantic Differential(SD) method and then were conducted by the factor analysis. Multiple regression was done for the relationship between the amenity and factors. The result found 3 factors, including dynamics, stability, and familarity. Much importance was placed on dynamics among them. Therefore, building port landscapes and their image attracting tourists should consider dynamics in terms of port landscape plan and tourist attraction development for amenity quality management.

  • PDF

A Current-Mode Multi-Valued Logic Interface Circuits for LCD System (LCD 시스템을 위한 Current-Mode Multi-Valued Logic 인터페이스 회로)

  • Hwang, Bo-Hyoun;Shin, In-Ho;Lee, Tae-Hee;Choi, Myung-Ryul
    • The Transactions of the Korean Institute of Electrical Engineers P
    • /
    • v.62 no.2
    • /
    • pp.84-89
    • /
    • 2013
  • In this paper, we propose interface circuits for reducing power consumption and EMI when sequences of data from LCD controller to LCD driver IC by transmitting two bit data during one clock period. The proposed circuits are operated in current mode, which is different from conventional voltage-mode signaling techniques, and also employ threshold technique of Modified-LVDS(Low Voltage Differential Signaling) method. We have simulated the proposed circuits using H-SPICE tool for performance analysis of the proposed method. The simulation results show that the proposed circuits provide a faster transmission speed and stronger noise immunity than the conventional LVDS circuits. It might be suitable for the real-time transmission of huge image data in LCD system.

A Study on Improvement of Large-size Hospital's Emergency Medical Service According to Patient's Viewpoint (환자관점에 따른 대형병원의 응급의료서비스 개선연구)

  • Cho, Chul-Ho;Lee, Eun-Ji
    • Journal of Korean Society for Quality Management
    • /
    • v.41 no.4
    • /
    • pp.541-553
    • /
    • 2013
  • Purpose: This study intends to offer strategic implications that can be used in emergency medical service of large-size hospital through analysis of causal relationship among factors such as emergency medical service, patient value, patient satisfaction and reuse intention. Methods: Differential model was introduced to test causal relationship. Questionnaire was developed, and data was collected and analyzed with Structural Equation Modeling. Results: As a result of empirical analysis, we found that emergency medical service qualities of general hospital could be six components. Image of hospital, medical facilities, and attitude of medical staff are positively related to patient satisfaction and reuse intention. Conclusion: This study offers practical implications to relevant managers, at the same time it has limitations to be solved through additional study in future.

Pedestrian Detection using HOG Feature and Multi-Frame Operation (HOG 특징과 다중 프레임 연산을 이용한 보행자 탐지)

  • Seo, Chang-jin;Ji, Hong-il
    • The Transactions of the Korean Institute of Electrical Engineers P
    • /
    • v.64 no.3
    • /
    • pp.193-198
    • /
    • 2015
  • A large number of vision applications rely on matching keypoints across images. Pedestrian detection is under constant pressure to increase both its quality and speed. Such progress allows for new application. A higher speed enables its inclusion into large systems with extensive subsequent processing, and its deployment in computationally constrained scenarios. In this paper, we focus on improving the speed of pedestrian detection using HOG(histogram of oriented gradient) and multi frame operation which is robust to illumination changes in cluttering images. The result of our simulation indicates that the detection rate and speed of the proposed method is much faster than that of conventional HOG and differential images.

A Study on the Visual Sensibility of color Combination for Clothing (Part II) (의복배색의 시각적 감성연구(제2보))

  • 은소영;주소현;이경희
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.26 no.6
    • /
    • pp.833-842
    • /
    • 2002
  • The purpose of this study was to investigate the visual sensibility of color combination far clothing. The survey had been done for the 42 color combination for clothing with 27 semantic differential bi-polar scales. The major findings of this research were as follows. 1. There were significant differences in the visual sensibility of color combination, especially in the difference according to the area(in Seoul and in Pusan). 2. As a result of the regression analysis, preference was related to buying desirable, gorgeous, fun, cheerful, attractive, harmonious and refined and the purchasing desire was related to favorite, comfortable, harmonious, sweet, and fun. Rich impression was related to refined, harmonious, elegance and attractive and pleasant feeling was related to sort, cheerful, attractive, clean and refined. 3. According to sensibility positioning, The color combination for clothing was classified by hard-soft, simple-gorgeous.

A Study on Using Realities for Hotel Lobby -Focused on Resort Hotel in Cheju (호텔로비의 이용실태에 관한 조사연구-제주지역 관광호텔을 중심으로)

  • 최재권
    • Korean Institute of Interior Design Journal
    • /
    • no.3
    • /
    • pp.71-77
    • /
    • 1994
  • The purpose of this study is to investigate the utilization of the interior environment in hotel lobby and to grasp the requests of visitors. The significance of the study is to illustrate the present characters of hotel lobby and to offer the basic data for future hotel projects. The materials for this study has been collected through questionnaires garnered from six deluxe hotels in Cheju, and statistically analyzed by the semantic differential scale of L. E. Osgood. The conclusion of this study as follows . 1) Hotel lobby is used as waiting space for a short time and frequent use is four times a day. The lobby is used by the quest for meeting , waiting as a resting place while it serves as the visitor's meeting and resting place. 2) The user prefers the lobby's open space. It is desirable for the area of activity of a quests and visitors to have separate entrances. The space composition of the lobby is centrally located between the room and subsidiary equipment. The hotel lobby has needed of a method which promotes lobby image through a magnificent view of the outside.

  • PDF

2D/3D Video Conversion Method using Differential Depth Information by Grouped Object (그룹화된 객체별 깊이정보를 차등 적용한 2D/3D 동영상 변환 기법)

  • Han, Sung-Ho;Hong, Yeong-Pyo;Lee, Jong-Yong;Lee, Sang-Hun
    • Proceedings of the KAIS Fall Conference
    • /
    • 2011.12b
    • /
    • pp.445-448
    • /
    • 2011
  • 본 논문은 그룹화된 객체별 깊이정보를 차등 적용한 2D/3D 동영상 변환 기법에 관한 연구이다. 기존의 연구에서는 프레임의 움직임 정보와 기하학적 깊이 단서를 이용해 깊이정보를 추출하여 2D/3D 동영상 변환을 한다. 그러나 영상의 움직임 정보를 획득할 수 없는 영역의 경우 정확한 깊이정보를 얻을 수 없어 해당 영역의 3D 효과를 얻을 수 없는 문제점이 있다. 제안하는 기법에서는 객체 및 배경을 추출하고 움직임 정보와 기하학적 단서를 이용한 깊이정보를 그룹화된 객체별 차등 적용하여 움직임 정보가 없는 영역에서도 3D 효과를 얻을 수 있는 방법을 제안한다. 최종적으로 원본 영상과 생성된 깊이맵을 DIBR(Depth Image Based Rendering) 과정을 통해 3D 동영상을 생성한 결과 움직임 정보가 없는 영역에서도 3D 효과를 얻을 수 있었다.

  • PDF

Septic arthritis of the temporomandibular joint: a case report

  • Yang, Sung-Won;Cho, Jin-Yong;Kim, Hyeon-Min
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
    • /
    • v.42 no.4
    • /
    • pp.227-230
    • /
    • 2016
  • Septic arthritis of the temporomandibular joint (TMJ) is a rare disease. The most common symptoms of this disease are acute malocclusion, limited mouth opening, swelling, and tenderness of affected TMJ. These symptoms are often confused with internal derangement of the articular disc, rheumatoid arthritis, retrodiscitis, or osteoarthritis. Therefore, differential diagnosis by image examination is required. Usually, antimicrobial treatment and surgical drainage by needle aspiration, arthroscopy, or arthrotomy are effective treatment approaches. In this study, a patient who was diagnosed with septic arthritis was treated with arthrocentesis and antibiotics without significant complications. We present a case report with a review of the literature.

Synthesis and Characterization of 1-D BiSI and 2-D BiOI Nanostructures

  • Lee, Juheon;Min, Bong-Ki;Cho, Insu;Sohn, Youngku
    • Bulletin of the Korean Chemical Society
    • /
    • v.34 no.3
    • /
    • pp.773-776
    • /
    • 2013
  • We have prepared 1-D BiSI and 2-D BiOI nanostructures, and characterized them by scanning electron microscopy, transmission electron microscopy (TEM), X-ray diffraction crystallography, thermogravimetric analysis/differential scanning calorimetry, and UV-visible absorption. Here, we first report clear HR-TEM image of BiSI. In addition, we first found that the growth direction of BiSI is [12-1] plane, with the neighboring distance of 0.30 nm. The crystal structures of BiSI and BiOI are found to be orthorhombic (Pnam) and tetragonal (P4/nmm), respectively. The absorption band gaps of BiSI and BiOI are measured to be 1.55 and 1.92 eV, respectively. Our study could further highlight the applications of V-VI-VII compounds.