• 혜화의학회지
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• 제20권1호
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• pp.51-63
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• 2011

There are two methods in inspection diagnosis(望診), the viewing shape(觀形) and the inspecting color(察色). Acquiring proper analysis from viewing shape(觀形) requires several standards of shape that can be compared with. We can identify major defects and flaws of the shape from comparing it with the standards that is defined as very normal shape. Also, It can eventually provide us interpretation of health related meanings of the objective shapes. Those standards need symmetrical and proportional details. In this research, I put some physiognomy and inspection diagnosis related documents, and standards for restorative plastic surgery together to suggest standards on viewing shape diagnosis of nose which is one of the most important spot in facial inspection. It is expected to improve delicacy of Oriental medine's inspection diagnosis, as the result of the comparison between plastic surgery and inspection diagnosis.

• 전자공학회논문지C
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• 제34C권9호
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• pp.84-101
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• 1997

Inferring and recognizing 3D objects form a 2D occuluded image has been an important research area of computer vision. The octree model, a hierarchical volume description of 3D objects, may be utilized to generate projected images from arbitrary viewing directions, thereby providing an efficient means of the data base for 3D object recognition. We present a fast algorithm of finding the 4 pairs of feature points to estimate the viewing direction. The method is based on matching the object contour to the reference occuluded shapes of 49 viewing directions. The initially best matched viewing direction is calibrated by searching for the 4 pairs of feature points between the input image and the image projected along the estimated viewing direction. Then the input shape is recognized by matching to the projectd shape. The computational complexity of the proposed method is shown to be O(n$^{2}$) in the worst case, and that of the simple combinatorial method is O(m$^{4}$.n$^{4}$) where m and n denote the number of feature points of the 3D model object and the 2D object respectively.

• 혜화의학회지
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• 제19권1호
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• pp.87-98
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• 2010

There are four kinds of diagnosis methods in oriental medicine, and viewing diagnosis(望診) is the most important method among them. There are two ways in viewing diagnosis. These are viewing shape(觀形) and inspecting color(察色). Viewing shape diagnosis includes observation on geometric curve that is made by prominence of bones or lump of flesh, and examination on symmetric disparity and balance of vertical length among three vertical section of face. Inspecting color is literally inspecting several specified region of face. By Viewing shape, we can learn about characteristic physical mechanism of individuals, and basic disposition of reaction from inside and outside infinite stimulations. On the other hand, by inspecting color, we can estimate the very present pathologic and physiologic status of the patient. the estimation is based on principle that inside body changes reveal some reflections on facial skin surface. When you diagnosis patients with inspecting color method, It is important to distinguish color delicately, and to know where to see and what to know from it. The most important and frequently mentioned regions are myong-dang(明堂), eyes(眼) and In-dang(印堂). Myong-dang(明堂) indicates nose. In-dang(印堂) indicates the space between eyebrows. Unlike myong-dang(印堂) and eyes, In-dang(印堂) is occasionally treated as a trivial region then others. But, from research on classical books of facial examination and consideration of it's locational meanings, we've learned In-dang(印堂) is very important in viewing diagnosis, because this region is crossing of the other two regions and this fact means this region expresses the spiritual status as well as physical status in one region.

• Journal of the Optical Society of Korea
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• 제4권1호
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• pp.58-61
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• 2000

Viewing zone shape and size perform a key role in creating viewing comfort for the viewer. The horizontal and vertical sizes of viewing zones, formed by a full color transmission type holographic screen with a stereoscopic image projection are investigated. The screens have been recorded as holograms of a narrow stripe shaped object with different width; to extend the vertical size of the viewing zone the holograms were exposed two times with the hologram shifting between exposures. The viewing zone parameters were measured as a function of the stripe width of the object and of the exit pupil size of projection optics for several holographic screens having the size of the 30 $\times$ 40 $\textrm{cm}^2$.

• 한국방송∙미디어공학회:학술대회논문집
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• 한국방송공학회 2009년도 IWAIT
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• pp.790-793
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• 2009

In the case of projection type display, it needs to use the screen in order to project the image clearly and wide viewing angle. We have been developing the step in type display system using the smoke screen. However, the image with smoke screen was flickered by gravity and air flow. Then we considered to reduce the flicker of the image and we found that flicker can be reduced and viewing angle becomes more large. This time we report the large viewing angle step in type display system using screen made up with very small particle size smoke and flow controlled nozzle. Hence, at first we considered the most suitable particle for the screen and then the shape of screen and then we constructed the array of flow controlled smoke screen. By the results of experiment we could get considerably high contrast flicker-less image and get the viewing angle more than $60^{\circ}$ by this flow controlled nozzle attached new type smoke screen and make clear the efficiency of this method.

• 한국전기전자재료학회논문지
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• 제15권8호
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• pp.720-725
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• 2002

The fringe-field switching (FFS) mode was known to exhibit both a wide viewing angle and high transmittance, especially when using the liquid crystal (LC) with negative dielectric anisotropy. In the device, the LC director rotates almost in-plane. However, in the bright state the device shows bluish and yellowish color along parallel and perpendicular to the LC director at off-normal directions since the LC director rotates only in one direction. Such a problem was greatly improved using a wedge shape of only pixel electrodes. In this way two different field directions exist in a pixel, enabling the LC director to rotate in two opposite directions. Consequently, owing to dual domain effect when using the LC with negative dielectric anisotropy, the viewing angle characteristics are greatly improved.

• Journal of the Optical Society of Korea
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• 제12권2호
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• pp.93-97
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• 2008

The superposing angle of the viewing zone forming optics and the display panel in the contact type 3 dimensional imaging systems for minimizing $moir{\acute{e}}s$ is found for a rectangular shape pixel with different aspect ratios. The angles are $26.2609^{\circ}$ for square shape pixels and $13.9858^{\circ}$ for the rectangular with aspect ratio 2. These angles result in the $moir{\acute{e}}s$ with the smallest period for the respective aspect ratio. The effectiveness of the angles is also experimentally demonstrated.

• Ocean Systems Engineering
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• 제10권4호
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• pp.435-449
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• 2020

This paper proposes a method to estimate the underwater target object's yaw angle using a sonar image. A simulator modeling imaging mechanism of a sonar sensor and a generative adversarial network for style transfer generates realistic template images of the target object by predicting shapes according to the viewing angles. Then, the target object's yaw angle can be estimated by comparing the template images and a shape taken in real sonar images. We verified the proposed method by conducting water tank experiments. The proposed method was also applied to AUV in field experiments. The proposed method, which provides bearing information between underwater objects and the sonar sensor, can be applied to algorithms such as underwater localization or multi-view-based underwater object recognition.

• 동굴
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• 제92호
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• pp.55-63
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• 2009

온달동굴 내에 분포하는 관람대상 지형지물과 관람객의 이동통로에 설정 가능한 관람 포인트를 구축하고 이에 따른 네트워크구축사례와 네트워크의 특성 분석을 통한 온달굴의 관람포인트의 특성을 고찰하였다. 온달동굴의 관람루트는 정해진 루트를 이동하기 때문에 그래프상의 목(tree)형 형태를 갖는다. 관람포인트와 관람대상물의 관계를 통한 관람루트의 특성을 네트워크 분석기법을 이용하여 분석하였다. 온달동굴의 수치적 결과는 차후 유사한 동굴간의 관람루트를 비교 분석하거나 관람방식에서 생기는 문제점을 파악하는 기초자료로 제공 될 수 있다.

• 인지과학
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• 제10권3호
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• pp.17-28
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• 1999

양안 부등 정보에 근거하여 모사 된 타원형 및 포물선형 반원주체가 관찰거리가 변화함에 딸 체계적으로 왜곡되어 지각되었다. 실험1과 실험3의 두 가지 관찰조건 모두에서, 타원형 반원주체는 45 cm의 관찰거리에서는 실제 모양과 근사하게 지각되었으나 135 cm의 관찰거리에서는 실제 곡면성의 75%로 과소 평가되어 지각되었다. 실험2에서는, 관찰거리에 대한 정보가 풍부할 때, 포물선형 반원주체가 45 cm의 관찰거리에서 실제 곡면성에 비해 118%의 곡면 성을 갖는 것으로 과장되어 지각되었으며, 90 cm의 관찰거리에서는 실제에 근접하여 지각되었고, 135 cm의 관찰거리에서는 실제 곡면성에 비해 85%로 과소 평가되어 지각되었다. 관찰거리에 대한 정보가 감소된 관찰조건에서는 모든 관찰거리에서 실제의 곡면 성 보다 다소 과소 평가되어 지각되었다. 예를 들어, 45 cm의 관찰거리에서는 실제 곡면성에 근접하여 지각되었고, 135 cm의 관찰거리에서는 실제 곡면성에 비해 68%로 과소 평가되어 지각되었다. 이러한 실험 결과들은 시각기제가 양안 부등을 추정한 관찰거리로 척도와(scale) 하여 3차원 모양을 표상 하게 된다는 설명을 지지하고, 이에 대립되는 가정, 즉 거리에 따라 변하지 않는 부등 곡률(disparity curvature)을 탐지해 냄으로써 3차원 모양을 직접 지각할 수 있다는 가정이 타당하지 않음을 시사한다.