• The Journal of the Acoustical Society of Korea
• /
• v.40 no.3
• /
• pp.228-233
• /
• 2021

In this paper, we propose a method to extract and classify features of multi-channel ElectroEncephalo Graphy (EEG) that change according to various musical tempo stimuli. In the proposed method, a 3D convolutional bidirectional gated recurrent neural network extracts spatio-temporal and long time-dependent features from the 3D EEG input representation transformed through the preprocessing. The experimental results show that the proposed tempo stimuli classification method is superior to the existing method and the possibility of constructing a music-based brain-computer interface.

• Journal of Korea Multimedia Society
• /
• v.12 no.7
• /
• pp.893-902
• /
• 2009

Many People are collecting and managing variable information(Image, Graphic, Animation, Text, music files etc.) about personal interests and holding them in common. Most users are using Microsoft Explorer to make a folder and classify many files. but It's difficult to understand the relation of the data instinctively. To resolve this problem, we adopt information visualization method (especially tree-graph control interface). We suggest an interface that all user can drawing a Graph easily and rapidly. So user can see the relations of their data instinctively and control the relation directly with our sketch-based interface.

• Journal of the Korean Society for Computer Game
• /
• v.31 no.4
• /
• pp.167-174
• /
• 2018

The homogeneous key arrangement is a method of consistently arranging notes in a tile-shaped keyboard musical instrument, and arranging them in the same direction in the same direction on the neighboring keys in the same direction to enable a consistent musical arrangement. It has been used for a long time, but recently it has attracted attention by applying it to various modern musical instrument design and software instrument interface. There have been many different methods of deployment, but there are few studies on the existence of some or none of them. In this paper, we propose a classification method for such a key arrangement and analyze the relationship between them. This shows that there are far fewer types of homologous key arrangement than the known ones, and provided the basis of the study on the homogeneous key arrangement by providing a classification framework. Based on this, it is expected that more systematic analysis and research will be done and it will be used to develop various music interfaces. These studies will play a very important role in training students to understand the basic elements of pitch, harmony, harmony, and scales in music education games.

• The Journal of the Korea Contents Association
• /
• v.11 no.3
• /
• pp.116-127
• /
• 2011

This paper proposes interactive game elements for children : contents, design, sound, gesture recognition, and speech recognition. Interactive games for early children must use the contents which reflect the educational needs and the design elements which are all bright, friendly, and simple to use. Also the games should consider the background music which is familiar with children and the narration which make easy to play the games. In gesture recognition and speech recognition, the interactive games must use gesture and voice data which hits to the age of the game user. Also, this paper introduces the development process for the interactive skipping game and applies the child-oriented contents, gestures, and voices to the game.

• Journal of Korea Multimedia Society
• /
• v.15 no.1
• /
• pp.51-62
• /
• 2012

In this paper, we propose a self instrument learning tool using a PC-based software and an external electronic keyboard instrument with USB interface to help primary school students to learn playing piano more easily and effectively. The PC-based learning software and the external electronic keyboard instrument interact through the USB interface. This tool has a help window to provide information how to play and support interesting game mode for exercise. The external electronic keyboard instrument receives a selective information through the USB interface and display it on LEDs and 7-segment for novices to easily know the relation between the notes and the positions in the keyboard. The external keyboard instrument can detect false inputs, display them on LEDs and on the information window. We implemented a self instrument learning system and our feasibility tests showed its validity of the self learning tool to improve the learning efficiency.

• The Journal of the Korea Contents Association
• /
• v.10 no.6
• /
• pp.213-221
• /
• 2010

Recently, as the scale of the cultural content business market is being growed, it required that we should introduce the Korean music culture which is unique and competitive cultural contents to the worldwide. This paper proposes a Samulnori Ensemble System (SES), using a touch interface which plays the Korean traditional musical instruments. A SES consists of the Control Device which supports touch functions, the Performance Manager that detects signals from the Control Device and plays a melody, and the Communication Manager making a ensemble among the possible devices. Also, using the Network Time Protocol which is part of Synchronization Manager can be paly different speed communication environments. We utilized multi-touch functions to operate the system. We also implemented multi-touch interface and multi-play with other player for fun and interesting who are not interested Samulnori.

• Proceedings of the Korean Information Science Society Conference
• /
• 2011.06b
• /
• pp.237-239
• /
• 2011

기존의 오선지를 이용하여 음악을 시각적으로 표현하는 방법은 오선 기보법에 익숙하지 않은 일반 사용자들이 많은 양의 음악적 지식을 습득해야 한다는 제약을 가지고 있다. 현재는 이러한 한계를 개선한 직관적인 음악 표기법 중에서 피아노 롤 표기법이 많이 사용되고 있으나 모바일 환경에서는 단말기 화면 크기의 제약으로 인해 사용자가 원하는 위치에 정확히 음표를 입력하기 불편하다는 문제가 있다. 따라서 모바일 환경에서는 사용자가 월하지 않는 부정확한 입력이 이뤄졌을 경우 빠른 수정이 가능한 직관적인 인터랙티브 인터페이스가 요구된다. 따라서 본 논문에서는 옥타브 줌인/아웃과 함께 기존의 피아노 롤 표기법에서 사용되는 음표를 막대 모양으로 변형시켜 이를 사용자가 터치 앤드래그하여 입력할 수 있는 모바일용 음표 입력 인터페이스를 제안한다.

• Proceedings of the Korean Society for Emotion and Sensibility Conference
• /
• 2009.05a
• /
• pp.79-82
• /
• 2009

Movies are not only for projecting graphical contents but also for Kansei evaluation that stimulate human beings' sense and emotion in real time. Also, when one views movies or moving images with stories, including movies and dramas, the audience would often be sympathized through various factors of movies, such as performances of actors/actress, graphics, and music, are moved to tears and feel fear. Especially, emotional movement is different from impression and brought about as a result of responding to joy, which is one of the basic emotions of human beings. Moreover, it is suggested that emotion is the most positive aesthetic measurement toward objects. In this study, focusing on emotional movement that is one of many aesthetic reactions in human beings' watching movies, we developed an interface for measuring of emotional changes. The goal of this study is to apply the output of our quantitative analysis on the results of the measurements to the effective designing and production of movies.

• Journal of the Semiconductor & Display Technology
• /
• v.19 no.3
• /
• pp.106-111
• /
• 2020

In this paper, we propose the non-contact gesture recognition system and algorithm using proximity-based sensors. The system uses four IR receiving photodiode embedded on a single chip and an IR LED for small area. The goal of this paper is to use the proposed algorithm to solve the problem associated with bringing the four IR receivers close to each other and to implement a gesture sensor capable of recognizing eight directional gestures from a distance of 10cm and above. The proposed system was implemented on a FPGA board using Verilog HDL with Android host board. As a result of the implementation, a 2-D swipe gesture of fingers and palms of 3cm and 15cm width was recognized, and a recognition rate of more than 97% was achieved under various conditions. The proposed system is a low-power and non-contact HMI system that recognizes a simple but accurate motion. It can be used as an auxiliary interface to use simple functions such as calls, music, and games for portable devices using batteries.

• The Journal of Information Technology and Database
• /
• v.7 no.1
• /
• pp.67-82
• /
• 2000

In this paper we have developed a message transfer protocol, CMP, which improves MSP's message processing capability. The proposed method has taken into account document classification to improve the efficiency of message processing. The difference between the conventional MSP and CMP has been addressed. The CMP's performance has been shown by various experiments including number, alphabet, Korean letter, Chinese letter, music sound and compression file transmission. And security capability of both protocols has been compared based on the specification of FIPS 140-2. The CMP's overall performance is shown to be superior to that of MSP on the processing speed in the performance perspective and on the function of cryptographic module interface and cryptographic key management in the security perspective respectively.