• Journal of Institute of Control, Robotics and Systems
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• v.7 no.9
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• pp.790-797
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• 2001

A simple computer vision technology to measure the middle-ranged depth with a mono camera and a plain mirror is proposed. The proposed system is structured with the rotating mirror in front of the fixed mono camera. In contrast to the previous stereo vision system in which the disparity of the closer object is larger than that of the distant object, the pixel movement caused by the rotating mirror is bigger for the pixels of the distant object in the proposed system. Being inspired by such distinguished feature in the proposed system, the principle of the depth measurement based on the relation of the pixel movement and the distance of object is investigated. Also, the factors to influence the precision of the measurement are analysed. The benefits of the proposed system are low price and less chance of occlusion. The robustness for practical usage is an additional benefit of the proposed vision system.

• The Journal of the Korea Contents Association
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• v.20 no.9
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• pp.19-28
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• 2020

Focusing on (2017), I would like to consider the way twin motifs' desires, deaths, and fantasies are reproduced in mirror images. First, the desire of twin motifs expresses the duality of good/evil and norm/desire as a mirror of sensual temptation. Second, the death of twin motifs expresses the spread of death as a mirror of punishment. Third, the fantasy of twin motifs expresses mental defense as fragmented mirror. In , the twin motifs effectively express three keywords-desire, death, and fantasy- with three mirror images-duality, punishment and division.

• Journal of the Korea Fashion and Costume Design Association
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• v.15 no.4
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• pp.47-61
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• 2013

This paper compared and analyzed costume design shown in two movies that was adapted from the same original work, 'Snow White'. One movie consists of a western director and a western designer team while the other movie is shot by an Asian director and an Asian designer team. Two movies show similarity and difference in expression of characters in 'Snow White'. The findings are as followed;- Both movies project an image of modern women, which is mainly represented by active and confident women, However, Ishioka Eiko, the costume designer of < Mirror, Mirror >, created unique costume in the movie by applying splendid and vivid colors to western costume to make exotic feeling. On the other hand, Colleen Atwood, who was inspired by costume in each historic period and region of the Western. created costume that was closer to the tradition of the Western in his movie, < Snow White and the Huntsman >. The purpose of this study is to help the Korean movie industry to find a way to advance to the world market by fully understanding how the Easterners and the Westerners feel and express 'Snow White'. Moreover, this study may present a chance to review importance and value of the movie costume design area.

• Annals of Clinical Neurophysiology
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• v.3 no.2
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• pp.160-163
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• 2001

Mirror movements in adult is usually accompanied with various clinical syndromes. But the pathogenesis of mirror movement is not clearly understood. A 20-year-old man visited with complaining of mirror movements in both hands, ophthalmoplegia and sensorineural hearing loss. He underwent through electromyography, transcranial magnetic stimulation, and functional magnetic resonance image. And we concluded that the mechanisms of his mirror movements were both ipsilateral innervated corticospinal tract and simultaneous activation of both motor cortex.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37C no.9
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• pp.757-762
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• 2012

In general, an ordinary CCTV camera has equipped with 24 frames per second. This camera is not capable of capturing an image of bullet trace which has speed about 1km per second. In spite of these difficulties, by means of the stereographical projection, a long distance trace is able to be contained in one image. Currently, to capture a series of image of an object with high speed, it is usual to use one of the complicated camera with high shutter speed or computerized devices with capability of controlling shutter timing with slightly different capture time. This paper proposed a monitoring tracer bullet single camera system equipped convex mirror trying to see whether or not a normal set of camera and convex mirror is capable of shooting on target located in as far as 250m.

• Journal of Internet Computing and Services
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• v.8 no.5
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• pp.117-123
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• 2007

Catadioptric mirrors are widely used in automatic surveillance system. The major drawback of catadioptric mirror is its unequal image resolution. Equidistance catadioptric mirrir can be the solution to this problem. The exact axial alignment and the exact mount of mirror are the sources that can be avoided but the focal length variation is inevitable. In this paper, the effects of focal length variation on the computation of depth and height of object' point are explained and the effective and simple focal length finding algorithm is presented. First two object's points are selected, and the counterparts on the other stereo image are to be found using MSE criterion. Using four pixel distance from the image center, the assumed focal length is calculated. If the obtained focal length is different from the exact focal length, 24mm, the focal length value is modified by the proposed method. The method is very simple and gives the comparable results with the earlier sophisticated method.

• Journal of Power System Engineering
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• v.3 no.2
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• pp.79-83
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• 1999

We implemented a system that can change laser beam directions rapidly by controlling the galvano-mirror, on which a mirror is mounted, with a computer. We show that a laser projection can be realized by programming our system properly, and that it can also be used for multiplexing 2-dimensional image information in the data storage of holographic memories efficiently.

• Journal of Institute of Control, Robotics and Systems
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• v.14 no.2
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• pp.161-167
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• 2008

This article describes the methods of a decision of the location which user points to move by an optical device like a laser pointer and a moving to that location. Using a conic mirror and CCD camera sensor, a robot observes a spot of user wanted point among an initiative, computes the location and azimuth and moves to that position. This system offers the brief data to a processor with simple devices. In these reason, we can reduce the time of a calculation to process of images and find the target by user point for carrying a robot. User points a laser spot on a point to be moved so that this sensor system in the robot, detecting the laser spot point with a conic mirror, laid on the robot, showing a camera. The camera is attached on the robot upper body and fixed parallel to the ground and the conic mirror.

• Journal of Industrial Technology
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• v.27 no.B
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• pp.121-123
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• 2007

As a reflector of reference arm in OCT systems, a coated fiber reflector has mostly used. Instead, this paper has realized the swaept source optical coherence tomography system using a loop mirror within a reference arm. Through the experiments for a tilted thin glass plate, we found that the loop mirror is better than the coated fiber typed mirror for obtaining the clear image.

• 한국정보디스플레이학회:학술대회논문집
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• 2004.08a
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• pp.943-946
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• 2004

We report the laser scanning display as an emerging technology. We show demonstration system of laser TV, Video image is made by using a high speed MEMS scanning mirror and a direct-modulated red diode laser. We designed and fabricated MEMS scanning mirror. The first demonstration system showed a NTSC-resolution video image with the image size of 5 inches. The successful development of compact laser TV will open a new area of home application of the laser light.