• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2004년도 학술대회지
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• pp.592-595
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• 2004

Recently the numbers of patent about the technology for mobile payment with Ie or bluetooth-chip are being increased more and more. The reasons of patent increment for mobile payment are advancement of wireless internet technology and rising of customer's request for it. The customer wants to be able to pay for purchase, tax and aid with own mobile phone. So every mobile service provider applies for patents about that competitively. And in the near future the biometrics is generalized in the mobile payment system. Especially the payment service of iris recognition is significant technique in this area for the future prospect. The biometrics of iris is an accurate authentication method because it has about 250 distinguish parameters to the finger print's 30. The biometrics of iris can recognize and identify a person for 2 seconds. But the image of iris is changed by transformation of body in the life. And the existing iris authentication system has problem that can be miss-recognized. In this paper, we propose the new method that reduces miss-recognizing rate with Renewable Iris Authentication Algorithm(RIAA) in mobile system.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2005년도 추계종합학술대회
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• pp.391-394
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• 2005

In this paper, we present an approach that is able to reconstruct 3 dimensional metric models from un-calibrated images acquired by a freely moved camera system. If nothing is known of the calibration of either camera, nor the arrangement of one camera which respect to the other, then the projective reconstruction will have projective distortion which expressed by an arbitrary projective transformation. The distortion on the reconstruction is removed from projection to metric through self-calibration. The self-calibration requires no information about the camera matrices, or information about the scene geometry. Self-calibration is the process of determining internal camera parameters directly from multiply un-calibrated images. Self-calibration avoids the onerous task of calibrating cameras which needs to use special calibration objects. The root of the method is setting a uniquely fixed conic(absolute quadric) in 3D space. And it can make possible to figure out some way from the images. Once absolute quadric is identified, the metric geometry can be computed. We compared reconstruction image from calibrated images with the result by self-calibration method.

• 한국CDE학회논문집
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• 제20권3호
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• pp.263-268
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• 2015

Due to an increased sitting time in work, lumbar disc disease is one of the most frequent diseases in modern days, and this occasionally requires surgery for treatment. Endoscopic disc surgery, one of the common disc surgeries, requires a process of inserting a guide needle to the target disc for which the insertion path is manually planned by drawing lines on the patient's skin while monitoring the fluoroscopic view of the lumbar. Such procedure inevitably exposes both surgeon and patient to the fluoroscopy radiation emitted from the c-arm for a long time. To reduce the radiation exposure time, this study proposes a computer assisted method of calculating the 3D guide needle path by using 2D c-arm images of the disc in 3 different angles. Additionally, a method of the guide robot control based on the 3D needle path was developed by implementing the Hand-eye Calibration method to calculate the transformation matrix between the c-arm and robot base coordinate systems. The proposed system was then tested for its accuracy.

• 한국의상디자인학회지
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• 제17권1호
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• pp.83-92
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• 2015

The knots have been used practically and functionally in close relation to people's daily life, and it shows the beauty of its ornamental purpose. This study was to discover a new formativeness, such as the natural and symbolic beauty of knots, based on the interpretation of knots' basic image, recreating Korean beauty and characteristics within a modern sense. A bowknot is one of the beautiful Korean traditional knots and it is considered as a symbol of transformation. In this study, the formativeness of bowknots was shown and used, resulting in developing textile patterns that symbolize peace, love, joy, and hope. It was believed that the symbolism of bowknots could be suitable for a pattern of kindergarten uniforms which the children would experience for the first time. Considering the functional characteristics without discomfort while the children participate in various activities and movements, we made two pairs of boys' uniforms and two for girls.

• 한국주거학회논문집
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• 제25권6호
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• pp.85-92
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• 2014

The purpose of this study was to analyze the impact on settlement consciousness from the physical change and community development accomplished by the regeneration of a park and green space in a deteriorated residential area. The case study was a park that altered the landscape of a ruined hill in Busan. Two field investigations were performed to determine the condition of before and after the making of the park. A survey was also conducted, the frequency and means were calculated, and multiple regression analysis was performed. The results show, first, the physical regeneration increased the vitality of the place and assisted in the improvement of the community, particularly in satisfaction and attachment to residence, and in the settlement consciousness. Second, the identity of the resident was improved by the regeneration, and they approved of the transformation of an abandoned space into a usable place. Third, the settlement consciousness was significantly reinforced by making the physical environment into valuable space and improving the image of the residential area.

• Human Ecology Research
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• 제52권4호
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• pp.383-394
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• 2014

The purpose of this study is to analyze the expression types and aesthetic meanings of fashion photographs adopting parody storytelling. The expressions of parody storytelling in advertising into the following five 5 types: parody of literature, movies, TV programs, art, and social issues. Therefore, in this study, we analyzed fashion photographs adopting parody storytelling from literature, movies, TV programs, art, and social issues, in fashion magazines. The meanings of fashion photographs adopting parody storytelling are as follows: First, the photographs adopting parody storytelling create new meanings with respect to a changeable narrative by transforming the original. Second, the humor of deviation comes from fun and interest generated the play of intent transformation and reconstruction of the original. Third, the photographs adopting parody storytelling of social issues suggest current messages. There is a growing tendency toward the value and the meanings of storytelling, and the various contents that have become the motive of the parody have important meanings. In particular, the analysis of expression methods and meanings of storytelling will contribute to raising the brand image through an effective fashion photographs project strategy. A story can be used as a source of inspiration and can contribute various ideas for a fashion photo-shoot and for fashion marketing.

• 한국게임학회 논문지
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• 제18권2호
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• pp.59-68
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• 2018

비주얼 노블은 여러 멀티미디어적 요소를 결합한 연출과 게임성이 돋보이는 수행성을 살리고 하이퍼텍스트 구조를 살린 서사를 도입하면서 플레이어인 독자에게 텍스트 읽기의 즐거움을 다양한 방면으로 전하는 데에 그 목적이 있다. 본 분석은 게임성과 서사성을 함께 추구하려고 한 비주얼 노블 컨텐츠가 멀티 시나리오를 구축하는데 있어 어떤 경향으로 제작해 왔는지 수행성이 서사에 담긴 시나리오와, 캐릭터별로 멀티 시타리오를 구축한 두 가지 유형으로 나누어 분석한다. 비주얼 노블은 서사와 게임성을 추구하는 컨텐츠로, 입체적 서사구성에 방점을 두고 있으며 이러한 멀티 시나리오의 구조를 알아가는 것은 앞으로의 컨텐츠 창작에 있어 실제적인 도움이 될 것이라 기대한다.

• 한국의류학회지
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• 제36권5호
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• pp.573-582
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• 2012

This work is to develop a T-shirt by adopting a unique cloud pattern (a good auspicious sign as design material) from traditional native Korean patterns for application to various cultural products and textile design cloth patterns; subsequently, a T-shirt design was processed based on this. As a research method, computer design programs Adobe Illustrator CS3 and Adobe Photoshop CS3 were used along with a literature examination as part of motive for design development and pattern realization. Three basic motives were selected as a new formative image in this work, utilizing graphical elements such as abridgement and simplicity of pattern, where flower-shaped cloud pattern, uprising cloud pattern, and 卍-shaped or swastika-shaped pattern of traditional cloud patterns were selected. Each motive diverged into two motives via the shape transformation and the application of different colors. The newly developed basic motive was further processed into a combination of one-time repeat pattern, stripe pattern, and application pattern with mixed cloud motives (that were previously developed), which altogether turned out to be 36 pieces of textile design. In addition, with newly developed motive designs and textile designs, a total of 12 shirt designs for 4 pieces were developed for these three each. The shirt design was developed into a shirt blouse, sleeveless T-shirt, half-sleeve T-shirt, and sports T-shirt among others in order to fit various uses and purposes.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제4권3호
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• pp.358-379
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• 2010

Multiple object association is an important capability in visual surveillance system with multiple cameras. In this paper, we introduce locally initiating line-based object association with the parallel projection camera model, which can be applicable to the situation without the common (ground) plane. The parallel projection camera model supports the camera movement (i.e. panning, tilting and zooming) by using the simple table based compensation for non-ideal camera parameters. We propose the threshold distance based homographic line generation algorithm. This takes account of uncertain parameters such as transformation error, height uncertainty of objects and synchronization issue between cameras. Thus, the proposed algorithm associates multiple objects on demand in the surveillance system where the camera movement dynamically changes. We verify the proposed method with actual image frames. Finally, we discuss the strategy to improve the association performance by using the temporal and spatial redundancy.

• 한국자동차공학회논문집
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• 제22권6호
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• pp.49-58
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• 2014

This paper proposes a new assessment and reliability validation method of Lane Departure Assistance System based on DGPS-GIS by measuring lanes with camera vision. Assessment of lane departure is performed with yaw speed measurement and determination method for false alarm of ISO 17361 and performance validation is executed after generating departure warning boundary line by considering deviation error of LDAS using DGPS. Distance between the wheel and the lane is obtained through line abstraction using Hough transformation of the lane image with camera vision. Evaluation validation is obtained by comparing this value with the distance obtained with LDAS. The experimental result shows that the error of the extracted distance of the LDAS is within 5 cm. Also it proves performance of LDAS based on DGPS-GIS and assures effectiveness of the proposed validation method for system reliability using camera vision.