• Korean Journal of Applied Biomechanics
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• v.26 no.2
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• pp.197-204
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• 2016

Objective: The purpose of this study was to analyze the kinematic factors of motion during air pistol shooting. Method: This study aimed to investigate changes in forces during movement and determine the factors that affect changes in force during the first, middle, and last periods of shooting an air pistol. Two ground reaction force systems (force platform), SCATT (a shooting training system), and EMG (electromyogram) to measure the action potentials in the muscles of the upper body were used in this study. Four university air pistol players (age: 19.75 years, height: 175.50 cm, body mass: $69.55{\pm}11.50kg$, career length: $6.25{\pm}6years$) who are training to progress to a higher rank were enrolled. Results: In terms of the actual shooting results, the mean score in the middle section was $42.48{\pm}1.74$ points, higher than those in the first and the last periods when using SCATT. The gunpoint moved 13.48 mm more vertically than horizontally in the target trajectory. With respect to action potentials of muscles measured using EMG, the highest action potentials during the aiming-shooting segments, in order higher to lower, were seen in the trapezius (intermediate region), trapezius (superior region), deltoid (lateral), and triceps brachii (long head). The action potentials of biceps brachii and brachioradialis turned out to be high during grasping motion, which is a preparatory stage. During the final segment, muscle fatigue appeared in the deltoid (lateral), biceps brachii (long head), brachioradialis, and trapezius (intermediate region). In terms of the ground reaction force, during the first period of shooting, there was a major change in the overall direction (left-right $F_x$, forward-backward $F_y$, vertical $F_z$) of the center of the mass. Conclusion: The development and application of a training program focusing on muscle groups with higher muscle fatigue is required for players to progress to a higher rank. Furthermore, players can improve their records in the first period if they take part in a game after warming up sufficiently before shooting in order to heighten muscle action potentials, and are expected to maintain a consistent shooting motion continuously by restoring psychological stability.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.01a
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• pp.173-174
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• 2013

최근 다양한 모바일 기기의 발달로 인하여 새로운 응용 애플리케이션의 기술력도 같이 성장하고 있다. 이런 성장과 더불어 게임 애플리케이션도 다양화 되고 있으나 고전게임, 그 중에서도 개발이 가장 빈약한 비행기 슈팅게임에 센서기능을 추가해서 화면터치만을 이용한 대부분의 게임 진행방식을 가속도 센서를 이용하여 비행기 기체를 움직일 수 있도록 다른 게임 애플리케이션과는 차이를 두었고, 또 JSON을 사용하여 로그인 및 회원가입 그리고 랭킹 시스템을 추가시켜 게임을 더 즐길 수 있도록 하였다. 이를 통해 중장년층에게 스마트폰의 새로운 기능인 센서와 스마트폰 게임 애플리케이션에 한층 가까워질 수 있는 계기를 제공하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.01a
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• pp.219-220
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• 2020

매칭 비디오 게임은 2000년대에 인터넷에서 퍼즐 게임이 확산되면서 각광을 받게 되었다. 본 논문에서 분석한 ANIPOP은 중국에서 매우 선풍적인 인기를 끌었고, 현재에도 많은 각광을 받고 있는 게임이다. 매칭 게임은 일종의 퍼즐 게임으로써 과일, 보석, 동물 아바타, 빌딩 블록, 마작 타일 등과 같은 일정한 양의 동일한 게임 요소를 재생하여 서로 인접하면 제거하고 승리하는 규칙을 가지고 있다. 본 논문은 중국에서 선풍적인 인기를 얻고 있는 ANIPOP 게임에 대해 소개와 분석을 한다.

• Journal of Korea Multimedia Society
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• v.8 no.10
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• pp.1293-1305
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• 2005

In this paper, we propose the method of manipulating the gaze direction of 3D FPS game's character by using eye gaze detection from the successive images captured by USB camera, which is attached beneath HMD. The proposed method is composed of 3 parts. In the first fart, we detect user's pupil center by real-time image processing algorithm from the successive input images. In the second part of calibration, the geometric relationship is determined between the monitor gazing position and the detected eye position gazing at the monitor position. In the last fart, the final gaze position on the HMB monitor is tracked and the 3D view in game is control]ed by the gaze position based on the calibration information. Experimental results show that our method can be used for the handicapped game player who cannot use his (or her) hand. Also, it can increase the interest and immersion by synchronizing the gaze direction of game player and that of game character.

• Journal of the Institute of Convergence Signal Processing
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• v.15 no.2
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• pp.42-47
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• 2014

A finger-gesture game controller using the single camera is implemented in this paper, which is based on the recognition of the number of fingers and the index finger moving direction. Proposed method uses the CAMShift algorithm to trace the end-point of index finger effectively. The number of finger is recognized by using a double circle tracing method. Then, HSI color mode transformation is performed for the CAMShift algorithm, and YCbCr color model is used in the double circle tracing method. Also, all processing tasks are implemented by using the Intel OpenCV library and C++ language. In order to evaluate the performance of the proposed method, we developed a shooting game simulator and validated the proposed method. The proposed method showed the average recognition ratio of more than 90% for each of the game command-mode.

• Journal of the Korea Society of Computer and Information
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• v.19 no.10
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• pp.91-97
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• 2014

In this paper, we design and implement a mobile game based on windows phone platform. Visual Studio and the Windows Mobile software development kit(SDK) and developer tool kits (DTK) make it possible to create software for the Windows Mobile platform in Visual C#. Also The XNA Framework is the set of .NET libraries that developers will code against to build games. XNA Framework support PC and XBOX and a ZUNE HD multiplex platform environment and 2D and 3D games provides the necessary functions to a development. XNA Framework is to make it easier to develop games because the codes which are succeeded creates with automatic, implements a game development relation resource and the game logic. The key idea of our game is that we use shooting and ranking system to raise fun.

• Journal of the Korea Society of Computer and Information
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• v.24 no.8
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• pp.45-50
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• 2019

Oculus Rift is the most universal VR (virtual Reality) headset for gamers and FPS (First Person Shooting) is the most suitable game genre to play with VR. Using VR can increase the player's sense of reality and make them feel as though they are in direct contact with the enemy while battling. The suggested VR game is a first person game where the player must defend a specific target against the surging enemy all within the time limit. Many objects will need to be used in this method. Object pooling will be used in order to manage all the numerous objects. When an object is repeatedly created and deleted it typically overwhelms the memory. To resolve this issue the game initially summons the object at the beginning of the scene and afterwards only uses the object when needed, lessening the burden on the memory. A ranking system is implemented to keep the game records in order to stimulate a competitive spirit between the players, and the game has received positive response during test play among college students in their 20s.

• Journal of Korea Game Society
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• v.4 no.3
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• pp.43-47
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• 2004

Fast games such as first person shooting games and action games gives notiming surplus to analyze both states of enemys and my status normally. Behavioral of enemy characters in these games are generally produced by patterns. However It was weekpoints of exposure of patterns when gamers try many times. In this paper, we study the new patterns of enemy characters after analysing patterns of gamers

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.1414-1415
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• 2013

국내 게임 시장은 모바일이라는 플랫폼을 이용하여, 최근 새로운 동력을 맞이하고 있다. 이러한 게임 산업의 중심에 있는 개발자들은 다양한 게임 엔진과 그에 맞는 언어를 빠르게 습득하고, 다양한 변화에 대응하고 있다. 현재 많은 고기능 고성능 게임 개발 툴이 있지만, API(Application Programming Interface)는 윈도우 운영체제를 실행 및 제어하고 프로그램과 프로그램을 연결시켜주는 역할 등의 전통적인 역할을 수행하고 있다. 이러한 API는 고성능의 게임 보다는 윈도우 시스템을 이해하며, 게임을 만드는데 적합 할 수 있다. 본 논문에서는 윈도우 시스템에서 간단하게 게임을 제작할 수 있도록 API를 이용한 시각적 효과 및 사운드 삽입에 대한 내용에 대해 설명한다.

• Journal of KIISE:Software and Applications
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• v.34 no.1
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• pp.79-94
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• 2007

In the ubiquitous computing age which uses a high quantity network, mobile devices such as wearable and hand-held ones with a small tamers and a wireless communication module will be widely used in near future. Thus, a lot of researches about an augmented game on mobile devices have been attempted recently. The existing augmented games used a traditional 'backpack' system and a pattern marker. The 'backpack' system is expensive, cumbersome and inconvenient to use, and because of the pattern marker, it is only possible to play the game in the previously installed palace. In this paper, we propose an augmented game called Flying Cake using a face region to create the virtual object(character) without the pattern marker, which manually indicates an overlapped location of the virtual object in the real world, on a small and mobile PDA instead of the cumbersome hardware. Flying Cake is an augmented shooting game. This game supplies us with two types: 1) a single player which attacks a virtual character on images captured by a camera in an outdoor physical area, 2) dual players which attack the virtual character on images which we received through a wireless LAN. We overlap the virtual character on the face region using a face detection technique, and users play Flying Cake though attacking the virtual character. Flying Cake supplies new pleasure to flayers with a new game paradigm through an interaction between the user in the physical world captured by the PDA camera and the virtual character in a virtual world using the face detection.