• The Journal of the Convergence on Culture Technology
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• v.8 no.2
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• pp.393-398
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• 2022

In order to experience and compete in car racing in reality, the barrier to entry is very high. It takes a lot of money and time to recruit or participate in a license, expensive vehicle, and stadium where the game can be played. Because of this problem, various equipment is used to create a feeling similar to real racing in their own space through sim racing equipment. Equipment similar to this reality is called sim racing equipment. The sim racing equipment can be divided into three categories. The first is a racing game device that can run virtual racing, the second is a steering wheel, seat, and cradle that are linked to the racing game device, and the third is a racing motion device that allows the body to experience the direction of movement in the racing game. In this thesis, the feeling of real car racing is based on game racing, and how similar reality to real racing is through the steering wheel and cradle equipment, which are equipment that can control game racing, and motion equipment that allows you to experience the direction of game racing. Let's check how the difference between real racing and data value changes through the G-Force direction and speed change values.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.1909_1910
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• 2009

디인터레이싱 방법은 크게 화면 간(Inter - Field) 디인터레이싱과 화면 내(Intra - Field) 디인터레이싱이 있고 화면 내 디인터레이싱 방법 중에는 대표적으로 라인카피와 라인별 평균값을 취하는 선형적인 방법, ELA 그리고 E-ELA 알고리즘 등이 있다. 기존 방식 중 선형적 보간법은 에지 블러링이나 계단현상이 발생하고 ELA, E-ELA알고리즘을 이용한 방법은 특정방향에지 정보가 없어 이미지에서 다양한 형태의 에지 부분의 디인터레이싱에 있어 성능이 좋지 못한 단점이 있다. 본 논문은 한 개의 필드를 사용하는 화면 내(Intra - Field) 디인터레이싱 방법을 사용하고 7방향의 에지 방향 보간법과 수평방향의 에지 라인을 고려하여 기존 방식에서 나타나던 오브젝트의 계단현상을 최대한 줄여줌으로써 향상된 화질을 보이는 디인터레이싱 알고리즘을 제안한다.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10b
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• pp.568-570
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• 2003

비월주사(interlaced)에서 순차주사(progressive)로의 변환을 디인터레이싱(de-interlacing)이라 한다. 제안하는 방식은 움직임 검출을 통해 움직임이 없는 영역에서는 앞선 필드정보를 이용하여 별도의 계산량 없이 디인터레이싱을 하게 되며, 움직임이 있는 영역에서는 공간정보(spatial information)를 이용하여 디인터레이싱하는 ELA(Edge based line average) 방식과 양방향 움직임 추정(bi-directional motion estimation)을 통한 시간정보(temporal information)를 이용하여 디인터레이싱하는 움직임 보상방법 간의 가중합산(weighted summation)을 이용하여 디인터레이싱을 수행하는 방법을 제안한다. 이 때 가중치(weight)는 공간 및 시간 정보 모두를 사용하여 결정되어지며, 이렇게 결정되어진 가중치를 통해 각 방식의 단점을 극복하게 된다. 이러한 가중합산을 이용한 방법은 높은 계산복잡도 없이 단순한 구현을 통해 다양한 조건에서 높은 성능의 디인터레이싱이 가능토록 해주며, 그 하드웨어 구현을 용이하게 해준다.

• Journal of the Institute of Convergence Signal Processing
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• v.11 no.2
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• pp.92-96
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• 2010

Deinterlacing methods are usually divided into inter-field deinterlacing and intra-field deinterlacing. The most common method of intra-field deinterlacing is the linear method which uses line doubling or line averaging. There are also some edge-enhancement methods such as ELA(Edge Based Line Average) and modified ELA. However, the linear interpolation generates edge blurring or staircase artifacts. The methods using ELA or modified ELA show poor deinterlacing at various types of edges because of insufficient edge information in a certain direction. This paper presents an intra-field deinterlacing algorithm that considers the interpolation based on edges in 7 directions and an edge line in the horizontal direction. It demonstrates better picture quality by reducing the staircase phenomenon of object in the conventional methods.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.1
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• pp.8-14
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• 2017

Deinterlacing is a method to convert interlaced video, including two fields (even and odd), to progressive video. It can be divided into spatial and temporal methods. The deinterlacing method in the spatial domain can easily be hardware-implemented, but yields image degradation if information about the deinterlaced pixel does not exist in the same field. On the other hand, the method in the temporal domain yields a deinterlaced image with higher quality but uses more memory, and hardware implementation is more difficult. Furthermore, the deinterlacing method in the temporal domain degrades image quality when motion is not estimated properly. The proposed method is for deinterlacing in the spatial domain. It uses several deinterlacing methods according to statistical characteristics in neighboring pixel locations. In this procedure, the proposed method uses the C4.5 algorithm, a typical classification algorithm based on entropy for choosing optimal methods from among the candidates. The simulation results show that the proposed algorithm outperforms previous deinterlacing methods in terms of objective and subjective image quality.

• Journal of Broadcast Engineering
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• v.12 no.2
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• pp.185-192
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• 2007

The interpolation is used in many image processing applications such as image enhancement, de-interlacing/scan-rate conversion, wavelet transforms based on the lifting scheme, and so on. Among these, de-interlacing and scan-rate conversion are proposed for the digital TV applications. The de-interlacing algorithm can be classified into two categories. The first one uses only one field, called intra-field de-interlacing, and the other uses multiple field, called inter-field de-interlacing. In this paper, an efficient de-interlacing algorithm using spatial domain information is proposed far the interpolation of interlaced images. By efficiently estimating the directional correlations, improved interpolation accuracy has been achieved. In addition, the proposed method is simply structured and is easy to implement. Extensive simulations conducted for various images and video sequences have shown the efficacy of the proposed method with significant improvement over the previous intra-field do-interlacing methods in terms of the objective image quality as well as the subjective image quality.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2010.07a
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• pp.424-425
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• 2010

본 논문에서는 영상의 종류에 따른 움직임 정보를 통계 값을 계산 하여 분산 및 평균값을 계산하여 적용하는 움직임 적응형 디인터레이싱 기법을 제안한다. 제안하는 알고리즘은 움직임 검출, 영상의 따른 분산 및 평균값 계산, 영상의 유형에 따른 상한, 하한 값 결정을 하여 시간적, 공간적 디인터레이싱을 선택적으로 하여 보간 하게 된다. 또한 Modified DOI 방식을 제안하여 복잡도가 높은 영상과 수직성분에서 개선이 된 M-ELA 를 사용하고, 수평 성분에서는 우수한 성능을 가진 DOI 방식을 개선한 Modified DOI 방식을 사용하여 DOI 계열의 복잡한 연산을 개선한 공간적 디인터레이싱 방법을 적용하였다. 다양한 영상에 대한 실험을 통하여 제안한 방식이 기존의 디인터레이싱 방법에 비해 좋은 성능을 보임을 확인하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.379-380
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• 2018

본 논문에서는 레이싱 게임에서 도시 맵을 빠르게 생성 및 합성할 수 있는 알고리즘을 제안한다. 레이싱 분류의 게임은 고정된 영역이 아닌 넓은 영역을 이동하는 특징이 있지만 이를 위한 맵을 디자인하고 개발하는 것은 많은 시간을 요구한다. 이 문제는 큰 지형 맵을 전처리 과정에서 생성함으로써 완화 시킬 수 있지만 고정적인 맵은 게임을 지루하게 만들며 그렇다고 다양한 맵을 모두 전처리 과정에서 처리하는 것은 비효율적이다. 이 같은 문제를 해결하기 위해 우리는 전처리 과정에서 지형 패턴을 만들어 실시간에 맵을 생성하고 다양한 맵을 랜덤하게 합성 할 수 있는 기법을 제안한다. 또한, View-dependent기법을 제안하는 프레임워크를 통합시켜 불필요한 렌더링 계산을 줄임으로써 효율성을 증대시킨다. 본 연구는 Unity 게임 엔진에서 개발했으며 레이싱 게임뿐만 아니라 다양한 콘텐츠에서 활용할 수 있다.

• Journal of Korean Society of Steel Construction
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• v.18 no.4
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• pp.447-456
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• 2006

In this study, a torsional test for U-type steel box girders was performed to observe the effects of the kind of panel for top lateral walateral bracings on the torsional behavior of the U-type steel girder system. For the structural tests, the test specimen with a two-thirds scale of the system actually constructed in the field was used. In the torsional test to observe the efects of top lateral bracings, the most economical arrangement of the top lateral bracing was found to be the panel width to length ratio of 1:1.5 with the inclined angle of $40^{\circ}$.

• Journal of Korea Game Society
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• v.18 no.3
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• pp.113-122
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• 2018

In this paper, we will discuss planning and production of VR contents for effective racing drone steering training. In the real world, direct racing drone training training is obviously a space and economic limit. We propose through the production of VR-based drone infiltration action game as a solution to these limitations and try to improve effective drone handling ability. Especially, we designed the virtual reality contents in a similar environment by using the similarity of FPV goggles and HMD based VR, and designed virtual drones, maps and obstacles considering the characteristics of the structures used in racing drone and drone racing. Also, we tried to increase the user's immersion and presence by increasing difficulty level of obstacles.