• KIPS Transactions on Software and Data Engineering
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• v.9 no.9
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• pp.267-280
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• 2020

Mirror is a physical reflective surface, typically of glass coated with a metal amalgam, and it is to reflect an image clearly. They are available everywhere anytime and become an essential tool for us to observe our faces and appearances. With the advent of modern software technology, we are motivated to enhance the reflection capability of mirrors with the convenience and intelligence of realtime processing, microservices, and machine learning. In this paper, we present a development of Digital Mirror System that provides the realtime reflection functionality as mirror while providing additional convenience and intelligence including personal information retrieval, public information retrieval, appearance age detection, and emotion detection. Moreover, it provides a multi-model user interface of touch-based, voice-based, and gesture-based. We present our design and discuss how it can be implemented with current technology to deliver the realtime mirror reflection while providing useful information and machine learning intelligence.

• Journal of Digital Convergence
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• v.17 no.6
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• pp.427-431
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• 2019

The purpose of this study was to investigate whether the mirror environment influences the attitude of the client when counselling. A group of 16 experimenters, 16 controls, a group with a mirror environment, and 32 men and women according to the presence or absence of interventional mirror environments in the control group. There was a statistically significant difference in the 'self - alienation' factor of the Authentic Scale(AS) in the experimental group that provided the mirror environment. There was no significant difference in the Semantic Differential Scale(SDS) between the experimental group and the control group. This study was conducted to investigate whether the presence of the mirror environment affects the client 's authenticity. There were significant differences in some of the factors of the Authentic Scale.

• The Journal of Korean society of community based occupational therapy
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• v.4 no.1
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• pp.33-45
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• 2014

Objective : We tested the effect of mirror treatment on patients with and without unilateral neglect over a period of 4 weeks. We also wanted to know the effect of mirror treatment with regards to improving upper extremity function and dealing with activities of daily living. Methods : Subjects were 10 hemiplegia patients with unilateral neglect and 10 hemiplegia patients without unilateral neglect. They visited the department of occupational therapy. We performed mirror treatment for 30 minutes, 5 times a week for 4 weeks. We used Albert Test to compare our results from before and after the treatment, Fugl-Meyer motor function Assessment(FMA) and Box & Block Test(BBT) for upper extremity function, and Functional Independence Measure(FIM) for activities of daily living. Results : The results showed that mirror treatment had an effect on stroke patients with unilateral neglect. The treatment also had an effect on upper extremity function and activities of daily living regardless of unilateral neglect. Conclusion : The mirror treatment showed improvements on upper extremity function and activities of daily life as well as a reduction in the unilateral neglect after a stroke. In conclusion, the mirror treatment is useful for recovering function and improvement and for helping the patients complete activities of daily living.

• Journal of the Korean Vacuum Society
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• v.10 no.2
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• pp.145-154
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• 2001

A new type of modular mirror manipulator with independent adjustability was developed for the EPU6 beamline under construction at the Pohang Accelerator Laboratory. The mirror manipulator was designed so that the angular displacements of roll and pitch rotations do not introduce translational displacements and are independent with each other by positioning the mirror center to the center of a newly devised spherical joint. Manipulating its roll and pitch micrometers, the rotation angles of a dummy mirror were measured at an accuracy of 5 $\mu$rad using a gravity-referenced inclinometer. While the designed angular resolution was 3.937 $\mu$rad/$\mu\textrm{m}$, measured angular resolutions were 3.94 $\mu$rad/$\mu\textrm{m}$ for roll rotation and 3.85 $\mu$rad/$\mu\textrm{m}$ for pitch rotation. The effect of roll rotation on pitch angles was measured to be -3.18% and the effect of pitch rotation on roll angles was measured to be -5.21%. As the mirror manipulator was designed with emphases on independent adjustability and standardization, it results in eases of manufacturing, installation and adjustment as well as reductions of development period and design cost of mirror manipulators for various types of mirrors.

• Korean Journal of Optics and Photonics
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• v.15 no.6
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• pp.495-502
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• 2004

We proposed an analysis model for a Fabry-Perot cavity constructed with a plane-mirrored optical fiber and a concave-mirrored one. We presented the analysis results calculated by inserting practical values into the equations derived. The coupling loss of the cavity and the mirror loss are the most important parameters in reducing the insertion loss of the filter. In order to build a filter of finesse 600, FSR 57 nm, and insertion loss < 3 dB, the plane-concave cavity using mirrors of loss < 0.09% should be aligned for the coupling loss to be less than 0.1 %.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.552-555
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• 2016

Currently it is increasingly commercialized "Mirror Display" is installed the mirror in front of Beauty salon chairs, cosmetic corner and shopping corner of the large department stores. It can go out on to earn additional revenue by showing advertising with a particular service. Speaking conventional mirror were used simply for the purpose of seeing yourself, in this paper, "Mirror Display" provides Weather forecast, Calender, time, Traffic information and important news according to the user's setting by downsizing this at home. Also by combining these technologies, by showing the information required in the 3D output method it will be able to maximize the nature of the mirror. "Hologram Mirror Display" is implemented to raise user satisfaction.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.05a
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• pp.200-203
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• 2021

This paper introduces a smart mirror technology that recognizes a person's facial expressions through image classification among several artificial intelligence technologies and presents them in a mirror. 5 types of facial expression images are trained through artificial intelligence. When someone looks at the smart mirror, the mirror recognizes my expression and shows the recognized result in the mirror. The dataset fer2013 provided by kaggle used the faces of several people to be separated by facial expressions. For image classification, the network structure is trained using convolution neural network (CNN). The face is recognized and presented on the screen in the smart mirror with the embedded board such as Raspberry Pi4.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1995.04a
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• pp.287-291
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• 1995

다구찌 방법을 이용하여 안정거울 시스템의 민감도 해석, 강건설계 및 공차설계를 행하였다. 민감도 해석을 통해 안정거울 시스템의 안정화 성능에 크게 영향을 미치는 7개의 중요한 설계변수를 도출하였다. $m_{M}$이 안정화 성능에 가장 크게 영향을 주므로 공차범위를 줄여야 한다. $m_{M}$, $m_{B}$, $K_{MB}$ , $p_{3}$, $b_{3}$는 공차범위가 크게 안정화 성능에 영향을 미치지 못함을 알 수 있다. 기타의 변수들은 각각 하한공차 및 상한공차로 주어진다.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10b
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• pp.499-501
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• 2001

본 논문에서는 각 광원의 위치에 대해 미리 구한 라디안스 맵에 시간-색 공간에서의 반사요소 분리방법을 적용하여 난반사 라디안스 맵과 거울반사 라디안스 맵을 구한다. 필셀 BRDF를 얻기 위한 입력으로 반사요소가 분리된 라디안스 맵을 사용하였다. 따라서, 광원의 조작에 대해 난반사와 거울반사 이미지를 각각 제어할 수 있다. 시간-색 공간에서의 반사요소 분리방법을 사용함으로써, 이미지의 전역 정보가 아니라 지역 정보만을 이용한 반사요소 분리가 가능하다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2009.01a
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• pp.177-180
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• 2009

볼록거울을 사용하여 CCTV시스템을 만들면 카메라 수를 줄이는 효과가 있다. 이 경우 볼록거울 영상은 휜 영상이므로 평면영상처럼 변환해야 한다. 이 경우에, 중앙에 비추인 영상은 평면 영상으로 변환 후에도 왜곡이 거의 없지만 거울의 테두리 부근에서 얻은 영상을 변환하면 왜곡이 심하게 나타나서 영상 내의 물체를 식별하기가 어려워진다. 렌즈의 초점이 거울의 중심부에 맞춰져 있기 때문에 변에 있는 영상은 픽셀들 사이에 겹침이 일어나기 때문이다. 본 논문에서는 픽셀들 사이의 광학적 겹침을 극복하기 위해 확산 방정식의 후진대입 해를 사용하였다. 결과를 분석하기 위해 PSNR값을 조사하였더니 제안된 방법은 N. Moayeri의 방법보다 4 dB 정도 개선되었다.