• Fire Science and Engineering
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• v.25 no.3
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• pp.99-106
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• 2011

Experiments of Cone calorimeter test and Lift spread flame apparatus test are carried out in order to appraise fire hazard in color nonwoven used mostly on the spot in construction works. As the result, in color nonwoven combustibility is discovered not firing flame in surface, but firing under state of combustible gas occuring in the state of melting. In the case of Lift spread flame apparatus test, color nonwoven is very brittle which almost no flame spread owing to contracting and break by firing strength. The following data are agree with basis: total heat release is 2.66 MJ/$m^2$, limited combustible material (10 min) of incombustible rating appraisal in interior material of building, and incombustible materials (5 min) 8 MJ/$m^2$ in spite of the above data mentioned, those data are only as basis of interior finish, and so I cannot judge color nonwoven have incombustible rating retain through the above data. Accordingly, the basis of incombustible rating and experiment method about exterior finish must be arranged also.

• The Journal of the Convergence on Culture Technology
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• v.5 no.1
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• pp.409-412
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• 2019

We investigated the development of a micropropagation protocol for multiplication of calla 'Gagsi' by using shoots as explant. The callus was induced on Murashige and Skoog (MS) basal medium containing cefotaxime antibiotics (25, 50, 100 mg/L). Also, MS basal medium with NAA 0.5 mg/L and BA 1.0 mg/L was used. The callus induction and browning rates were compared by treatment supplemented cefotaxime 25, 50 and 100 mg/L in basal MS medium. The callus induction rate was 10.5 % and browning rate was also, 10.5 % on the MS containing 25 mg/L. In the MNB containing cefotaxime, the callus induction rate was 34.5 % and browning rate was 27.0 %. The cefotaxime experiment has been widely used in previous studies. It is thought that it will help establish the mass multiplication system by positively affecting the growth and browning reduction of calla plants.

• Spatial Information Research
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• v.3 no.2
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• pp.179-189
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• 1995

To make vector data from a map which has no negative plates by using vectoring tool, it is necessary that we can extract objects to be vectorized from a scanned map. In this paper, we studied on extracting vectoring objects from scanned color maps. To do this, we classified vectoring objects into three types : line type, filled - area type and character/symbol type. To make the extraction method effective, we analyzed characteristics of vectoring objects and color distribution in scanned color maps. Then, we applied these characteristics to designing process of the extraction method. To extract the line type object, our line tracing method was designed by using the masks which considered connectivity and geometrical characteristics of lines. By using the local thresholding method and the similarity function for comparing the color distribution between two NxN blocks, we extracted character/symbol and the filled-area objects effectively. The method proposed in this paper can be used for constructing the small scale GIS application economically using existing color maps.

• Journal of the Korea Convergence Society
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• v.9 no.1
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• pp.181-187
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• 2018

This study was to develop and apply the avatar art activity as a career search program to find out the possibility of oneself based on self-understanding and to find out the value of work. Furthermore, this study has suggested the effect obtained by appreciating their own business card and images in the use of color code media. Art program has been conducted for five sessions in 'past tense' 'present tense' and 'future tense' on first graders in Middle School. As a result education effect obtained from the art program for career exploration in manufacturing Avatar is as follows. First, there was an effect as to how students ended up knowing their inner strength through mind-map realizing their characteristics and personal interest. Secondly, Avatar was manufactured by enhancing an understanding about them through self-exploration. Third, students appreciated their 'business card' and 'video clip' by using color code media building self-leading attitude in realizing career design.

• Journal of Broadcast Engineering
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• v.5 no.1
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• pp.102-112
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• 2000

The previous video structuring techniques are mainly limited to shot or shot group level. However, the shot level structure couldn't provide semantics within a video. So, researches on high level structuring are going on for getting over the drawbacks of shot level structure, recently. To overcome the drawbacks of shot level structure, we propose video scene segmentation technique based on color and motion features. For considering various color distribution, each shot is divided into sub-shots based on color feature. A key frame is extracted from each sub-shot. The motion feature in a shot is extracted from MPEG-1 video's motion vector. Moreover adaptive weights based on motion's property in search range are applied to color and motion features. The experiment results of proposed technique show the excellence in view of the over-segmentation and the reflection of semantics, comparing with those of previous techniques. The proposed technique decomposes video into meaningful hierarchical structure and provides video browsing or retrieval based on scene.

• Journal of the Korea Society of Computer and Information
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• v.13 no.6
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• pp.87-94
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• 2008

Iris diagnosis is an alternative medicine technique whose proponents believe that patterns, colors, and other characteristics of the iris can be examined to determine information about a patient's systemic health. However, because most of previous studies only find a sign pattern in a gray iris image, they are not enough to be used for a iris diagnosis system. In this paper, we developed an iris diagnosis system based on a color image processing and iris medical information stored in database. The system includes four modules : input module with an iris camera, iris signs extraction module, medical database, output module with printing. Based on a color image processing approach, this paper presents the extraction algorithms of 7 major iris signs and correction manually for improving the accuracy of analysis. We can use the iridology and patient's health DB in the stage of signs analysis. Compared with the existing system, the developed system can be applied to an iris diagnosis system since it provides various additional functions.

• Journal of the Korean Institute of Intelligent Systems
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• v.9 no.5
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• pp.526-537
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• 1999

In the paper. we propose an evaluation model based the adaptive fuzzy systems, which can transform the physical features of a color pattern to the emotional features. The model is motivated by the Soen's psychological experiments, in which he found the physical features such as average hue, saturation, intensity and the dynamic components of the color patterns affects to the emotional features represented by a pair of adjective words having the opposite meanings. Our proposed model consists of two adaptive fuzzy rule-bases and the y-model, a l i r ~ r ys et operator, to fuze the evaluation values produced by them. The model shows con~parablep erformances to the neural network for the approximation of the nonlinear transforms, and it has the advantage to obtain the linbwistic interpretation from the trained results. We believe the evaluated results of a color pattern can be used to the emotion-based color image retrievals.

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.46 no.2
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• pp.89-98
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• 2009

In the field of computer vision, image mosaicking is a common method for effectively increasing restricted the field of view of a camera by combining a set of separate images into a single seamless image. Image mosaicking based on feature points has recently been a focus of research because of simple estimation for geometric transformation regardless distortions and differences of intensity generating by motion of a camera in consecutive images. Yet, since most feature-point matching algorithms extract feature points using gray values, identifying corresponding points becomes difficult in the case of changing illumination and images with a similar intensity. Accordingly, to solve these problems, this paper proposes a method of image mosaicking based on feature points using color information of images. Essentially, the digital values acquired from a digital color camera are converted to values of a virtual camera with distinct narrow bands. Values based on the surface reflectance and invariant to the chromaticity of various illuminations are then derived from the virtual camera values and defined as color-invariant values invariant to changing illuminations. The validity of these color-invariant values is verified in a test using a Macbeth Color-Checker under simulated illuminations. The test also compares the proposed method using the color-invariant values with the conventional SIFT algorithm. The accuracy of the matching between the feature points extracted using the proposed method is increased, while image mosaicking using color information is also achieved.

• Proceedings of the IEEK Conference
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• 2001.09a
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• pp.553-556
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• 2001

본 논문은 불완전한 휘도/색신호 분리로 인해 복조된 NTSC 칼라 TV신호의 휘도와 색차신호의 경계(edge)에서 나타나는 dot 패턴을 제거하는 2차원 필터에 대한 것이다. 제안된 필터는 휘도와 색차신호의 천이영역 검출신호와 dot 패턴 검출신호에 따라 직렬(cascade)로 연결된 수평-수직방향 저역통과필터의 차단주파수를 조절함으로써 dot 패턴을 감소시킨다. 제안 방식의 성능을 검증하기 위하여 현재 가장 많이 사용되는 NTSC 디코더 칩인 BT835과 SAA7113H을 이용하여 복조된 휘도와 색차신호에 적용한 결과 영상신호가 변화를 갖는 경계 영역에서 발생한 dot 패턴과 불완전한 복조로 인해 발생하는 평탄영역에서의 dot 패턴이 제거되었음을 확인할 수 있었다.

• Journal of the Korea Society of Computer and Information
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• v.3 no.3
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• pp.1-5
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• 1998

In this paper, it was Proposed to extract road area automatically in general road guide map. Line tracing proposed in 〔1〕 was used basic extraction method, but by choosing starting pixel automatically iterative user interaction could be removed in this paper. this was possible by classifying and analysis color of each road. The usefulness of the proposed method was proved through experiments with various color printed maps.