Soonho Jung

Design of Exhibition contents using swipe gesture recognition communication based on Kinect

Exhibition content has been used a touch panel for the users convenience. Touch panel are not good recognition. And errors may occur when you use a long time. In addition there occurs a malfunction due to contamination. In the present study, such problems want to improve. We designed the Exhibition contents to recognize the swipe gesture of Kinect. Gesture recognition is constructed in three steps of Modeling, analysis, and recognition. Such gesture recognition was implemented using Kinect. Kinect provides Depth information of the image, Color Information and dimensional coordinates of your joints. Using this information in Were aware of the Hand movements. The KIOSK was controlled by use in 4 kind(up, down, left, and right) swipe gestures In order to verify the performance of the Exhibition contents applying the Kinect swipe gesture depth information and RGB image were used. And, verified the performance of the swipe gesture recognition and exhibition contents operations.

Features extraction of fluorescent light image for positioning information acquisition using steerable Gaussian filter

Indoor positioning technology has been a goal of ubiquitous computing research. In this paper, we show the feasibility of detecting fluorescent light based on the camera images received from a smart phone. We present a robust and real time approach to fluorescent light detection in indoor environments. It is based on taking a ceiling image by Smartphone image sensor, filtering using selective oriented Gaussian filters. Our algorithm can detect all fluorescent light in still images of indoor environments in various conditions.

LED-QR Authentication Technology for Access Control and Security

There are several possible places which are accessible in many buildings and facilities, various types of systems have been utilized such as access control or surveillance depending on the purpose. Especially if security is important, it must go through the various authentication procedures when people can access. Until now many access control systems have been proposed and developed, they are applied and utilized to companies which security is needed. However, as time passes the problems with existing access control systems occur or the vulnerabilities related to access control are reported, as technology advances. The solution to this, we propose authentication technology related to access control using LED-QR tag.

Development of Data-Flow Control Algorithm of Wireless Network for Sewage Disposal Facility

Recently, water sewage disposal facilities are able to manage real-time data collection and record management through compact broadband modem LAN switching technology. Therefore, it needs more stable and efficient facility management. So, we required practical use of environmental facilities convergence based on broadband integrated modem. In this paper, we proposed short distance wireless communication network of compact broadband modem for sewage disposal facilities. And it received data inside of water treatment facility using the two communication methods (IEEE802.11x and IEEE802.15.4x). Then, our proposed an data-flow control algorithm of wireless network technology will prioritize processing data when emergency happen through collecting data, analysis data and processing. Lastly, we proved usefulness by experiment and simulation analysis.

Microprocessor Device to Control Lights Using LED Communications for Body Area Networks

As one of the attempt to energy saving, selective LED lighting control is considered to have many effects. It is possible to save energy through the on/off switching of lighting depending on someone needs or the focusing the lighting where the people is crowed. But, domestic LED lighting have many problem to use as individual lighting because most of the domestic LED lighting did not support individual control and variety lighting is only connected to one switch so it is need to additional wiring work. In this paper, we proposed the method of the individual lighting control system using VLC technique that easy to install and easy to usage. So it is expected to implement the system of individual lighting control and to avoid the difficulty of wiring.

UWB sensor chip measurement system implementation using labview and MCU board

This paper is accomplished to verify the measurement property for UWB RF chip and human detect radar system. By utilizing NI(National Instruments Corporation)s LabView and DAQ(Data Acquisition equipment), we certified data acquisition and saving properties of measurement system for analog signal from RF chip. Furthermore, LabView and Matlab software are used to simulate about UWB Sensor related algorithm. By using simulation results and various measurement devices, we verified UWB RF sensor chip measurement system. Moreover, we designed MCU board to control RF chip and to interface between RF chip and DAQ equipment.