• Annual Conference of KIPS
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• 2011.11a
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• pp.1526-1528
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• 2011

증강 현실이란 가상 세계와 현실 세계를 혼합하여 어떠한 정보를 제공하는 기술로 최근에 들어 증강현실을 스마트폰에 접목한 다양한 연구가 이루어지고 있다. 교육 분야에 있어서도 증강 현실을 활용하여 시각적인 학습 효과를 제공하기 위한 다양한 연구가 활발히 진행되고 있다. 이에 본 논문에서는 증강현실을 이용하여 효과적으로 컴퓨터 구조 교육을 실시할 수 있는 애플리케이션을 제안한다. 이를 통해 사용자들은 카메라 촬영만으로 컴퓨터를 구성하는 각 부품에 대한 상세한 정보를 시각적으로 제공받을 수 있다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.07a
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• pp.99-101
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• 2021

쓰레기 대란, 환경파괴의 상황 속 실제 재활용 쓰레기 가운데 절반 정도만이 재활용되고 있다. 재활용률을 높이기 위해, 올바른 분리배출 방법을 쉽고 편하게 찾을 수 있는 방식이 필요하다. 본 논문에서는 올바른 분리수거를 통해 재활용률을 증진하기 위한 분리수거 분류 서비스를 제안한다. 본 논문은 ResNet-34 모델을 통해 안드로이드 카메라로 촬영한 이미지의 분리배출 클래스를 예측하고 그에 따른 분리배출 가이드를 제공하는 시스템을 설계하였다. 향후 연구에서는 모델의 정확도 향상을 위해 온디바이스와 서버 모델을 분리하고 모델의 개인 맞춤화를 진행할 예정이다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.185-186
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• 2023

작물의 병해 감지는 주관적인 관찰과 개인의 경험에 의존하는 전통적인 방법을 사용해왔다. 하지만, 이는 많은 시간이 소요되는 등의 한계를 가지고 있다. 본 논문에서는 모바일 카메라를 활용하여 촬영된 사진을 클라우드와 연동한 객체 검출 기반의 어플리케이션을 제안한다. 따라서, 휴대폰만 있다면 시공간적 제약을 받지 않고, 신속하고 정확하게 병해 검출 결과를 확인할 수 있는 장점이 있다.

• Journal of Korean Society for Geospatial Information Science
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• v.3 no.1 s.5
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• pp.105-113
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• 1995

Three-dimensional landscape map is very useful in terrain analysis as it looks like real shape of terrain. When three-dimensional landscape map is needed, landscape photos achieved at a position of high elevation or by airplane are generally used. But, this approach can not fully satisfy the user's need to get pictures from various view points. In addition, because photos have some geometric displacement caused by the principle of central projection of camera, it is hard to get accurate locations from the photo. This paper aims to get three-dimensional landscape map similar to real terrain feature from vertical stereo aerial photos by digital photogrammetric techniques. This approach can provide a very useful data for three-dimensional terrain analysis as a function of Geo-Spatial Information System.

• Journal of the Korean Association of Geographic Information Studies
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• v.23 no.1
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• pp.41-50
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• 2020

The National Geographic Information Institute of Korea takes digital aerial photograph images every two years to make and modify/renew the digital map. The cameras for aerial photogrammetry to capture these digital aerial photographs are divided into frame types and line types. Computer vision analysis of aerial photograph images was only possible for frame type. Thus, in this study, Line type aerial photograph images was intended to generate geospatial information through computer vision analysis, and forest geospatial information was created as a method for the utilization of aerial picture images. As a result, geospatial information generated by computer vision analysis of line type aerial photograph images showed that RMSE of horizontal and vertical position errors was less than quadruple that of GSD. Forest geospatial information was generated using geospatial information generated by computer vision analysis. It was confirmed that extraction of the crown of tree and calculation of tree height are possible. Through this study, it is expected that utilization of aerial photograph images will be improved.

• Journal of Korea Multimedia Society
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• v.11 no.9
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• pp.1245-1257
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• 2008

The establishment of a production pipeline imported 30 computer graphics is suggested in this paper to improve the efficiency of existing production pipeline of clay animation. The point is that the process of building clay characters that remains labor intensive among the existing procedures is replaced by the process of creating computer generated characters. In order to create characters out of clay by means of 30 computer graphics, a diffuse map and displacement map are made of an oil-based clay according to the UVW coordination of polygon modeling, which is the same color and kind of clay used to make a clay character. In addition, a panoramic HDRI recording system is developed to record the lighting information of shooting environment for miniature sets, which is imported in 3D computer graphic tools as digital light source. On account of the new production pipeline, a hyper realistic rendering image can be produced, and at the same time it improves the traditional pipeline of stop motion animation that is know-how based procedure of a complete artist by the engineering approach to the automatic process.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.20 no.6
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• pp.115-121
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• 2020

With the spread of IoT technology, various IoT applications using facial recognition are emerging. This paper describes the design and implementation of a remote control system using deep learning-based face recognition and hand gesture recognition. In general, an application system using face recognition consists of a part that takes an image in real time from a camera, a part that recognizes a face from the image, and a part that utilizes the recognized result. Raspberry PI, a single board computer that can be mounted anywhere, has been used to shoot images in real time, and face recognition software has been developed using tensorflow's FaceNet model for server computers and hand gesture recognition software using OpenCV. We classified users into three groups: Known users, Danger users, and Unknown users, and designed and implemented an application that opens automatic door locks only for Known users who have passed both face recognition and hand gestures.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.5
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• pp.83-88
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• 2023

In this paper, we developed a workout and diet assistance application to meet the growing demand for workout and dietary support services due to the increase in the home training population. The application analyzes the user's workout posture in real-time through the camera and guides the correct posture using guiding lines and voice feedback. It also classifies the foods included in the captured photos, estimates the amount of each food, and calculates and provides nutritional information such as calories. Nutritional information calculations are executed on the server, which then transmits the results back to the application. Once received, this data is presented visually to the user. Additionally, workout results and nutritional information are saved and organized by date for users to review.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.01a
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• pp.257-259
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• 2017

본 논문은 여행상품 일정의 POI정보를 기반으로 생성된 여행 스케줄러에 따라 실제 여행이 이루어지고 여행 중에 촬영된 사진과 여행자가 작성한 여행상품 리뷰 및 여행기 등의 정보를 매시업하여 여행노트를 생성하는 시스템을 구현하였다. 무엇보다 여행자가 일일이 자신의 여행 스케줄을 입력해야하는 번거로움을 없이 여행중에 편리성을 제공받을 수 있다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.221-222
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• 2012

본 논문에서는 CCTV가 설치된 엘리베이터 안에서 촬영한 영상을 대상으로 절도 범죄를 범하는 경우를 대상으로 범죄를 분석하여 수사하는데 영상 자료로 제출하도록 하였다. 영상에서 나타나는 것처럼 장면 전환 검출을 하면 쉽게 영상에서 절도죄를 포착할 수 있다.