Abstract: A fitness device-based simulator and a simulation method using the simulator. The fitness device-based simulator includes a feature point extraction unit for acquiring action-sensing information of a user who is located on a fitness device, and extracting feature points for a body skeletal structure of the user based on the action-sensing information, a feature point cluster generation unit for generating multiple feature point clusters by clustering two or more of the feature points, and setting respective cluster symbols for multiple feature point clusters, an exercise pattern information accumulation unit for generating and storing information about a state transition between the multiple feature point clusters of the user, and an exercise state prediction unit for predicting a subsequent exercise state of the user by predicting a feature point cluster subsequent to a feature point cluster currently being generated for the user, based on state transition information.

Abstract: Disclosed herein are a method and apparatus for authenticating a user based on a fingertip gesture. The authentication apparatus may display a pattern generated based on geometric information about a hand geometry or size of a user, and may recognize a fingertip gesture via interaction with the user with respect to the pattern. The authentication apparatus may authenticate a user using the recognized fingertip gesture. The pattern may include a gesture inducement/relation pattern and a fake pattern. Information about the fingertip gesture may include fingertip touch locations of the fingertip gesture, a touch order of the fingertip touch locations, and a moving direction of the fingertip touch locations.

Abstract: A fitness device-based simulator and a simulation method using the simulator. The fitness device-based simulator includes a feature point extraction unit for acquiring action-sensing information of a user who is located on a fitness device, and extracting feature points for a body skeletal structure of the user based on the action-sensing information, a feature point cluster generation unit for generating multiple feature point clusters by clustering two or more of the feature points, and setting respective cluster symbols for multiple feature point clusters, an exercise pattern information accumulation unit for generating and storing information about a state transition between the multiple feature point clusters of the user, and an exercise state prediction unit for predicting a subsequent exercise state of the user by predicting a feature point cluster subsequent to a feature point cluster currently being generated for the user, based on state transition information.

Abstract: A system and a method for motion estimation are disclosed. The system for motion estimation in accordance with an embodiment of the present invention includes: a plurality of motion sensors mounted near joints of a body and configured to provide motion information; a depth sensor configured to provide 3-dimensional image information having a 3-dimensional coordinate for each pixel; and a motion estimation device configured to estimate a motion by use of the motion information and the 3-dimensional image information, wherein the motion estimation device includes: a converging unit configured to compute mounting position information of the motion sensors by performing an initialization process by converging the motion information and the 3-dimensional image information; and an estimating unit configured to estimate the motion by computing a state vector including the mounting position information and the motion information.

Abstract: An apparatus and method for controlling virtual training simulation are disclosed herein. The apparatus for controlling virtual training simulation includes a posture recognition unit, a posture information convergence unit, a location recognition processing unit, and a movement device control unit. The posture recognition unit recognizes the posture of a trainee based on the image information of the inside of a virtual training field and motion sensor information. The posture information convergence unit generates converged information by converging the results of the recognition of the posture of the trainee. The location recognition processing unit estimates the current location of the trainee based on the converged information. The movement device control unit controls an omnidirectional movement device in which the trainee is placed using information about the control state of the omnidirectional movement device and the current location of the trainee.

Abstract: A system and a method for motion estimation are disclosed. The system for motion estimation in accordance with an embodiment of the present invention includes: a plurality of motion sensors mounted near joints of a body and configured to provide motion information; a depth sensor configured to provide 3-dimensional image information having a 3-dimensional coordinate for each pixel; and a motion estimation device configured to estimate a motion by use of the motion information and the 3-dimensioanl image information, wherein the motion estimation device includes: a converging unit configured to compute mounting position information of the motion sensors by performing an initialization process by converging the motion information and the 3-dimensional image information; and an estimating unit configured to estimate the motion by computing a state vector including the mounting position information and the motion information.

Abstract: Disclosed are a method and an apparatus for predicting human motion in a virtual environment. The apparatus includes a motion tracking module configured to estimate a human pose of a current time step based on at least one piece of sensor data and a pre-learned motion model, and a motion model module configured to predict a set of probable human poses in the next time step based on the motion model, the estimated human pose of the current time step, and virtual environment context information of the next time step. A sense of immersion of the virtual environment may be maximized.

Abstract: A communication data protection method based on symmetric key encryption, and an apparatus for enabling the method are provided. A communication data protection method using a Radio Frequency Identification (RFID) reader, the method including: receiving, from a tag, tag information including security parameter information and an encrypted Unique Item Identifier (UII); extracting the UII based on the security parameter information; transmitting, to the tag, a request message including a challenge value for replay prevention; and performing a tag authentication by receiving, from the tag, a response message including a handle and the challenge value.

Abstract: Disclosed are a Radio Frequency Identification (RFID) personal privacy control system and a personal privacy protection method using the same which may dynamically process a privacy level according to peripheral circumstances of an RFID tagged object and an owner of the object, thereby securely protecting personal information associated with the RFID tag. The RFID privacy control server, the RFID privacy control server includes a context-aware information collecting unit to collect at least one context-aware information about a user; a privacy level adjusting unit to adjust a privacy level of the user based on the collected context-aware information; and a privacy control unit to determine, according to the adjusted privacy level, whether access of an RFID reader to RFID tag information is allowed, the RFID tag information corresponding to an RFID tag associated with the user.

Abstract: The present invention relates to a web service method and an apparatus therefor. A service apparatus in accordance with the present invention includes a message security gateway for security, an authentication server, an authorization server, a security policy server, a harmful site database, and an application server. User authentication employs SAML assertion of an SAML authority server. A service method in accordance with the present invention analyzes a message format and can employ security technologies although they have different message formats.

Abstract: A system and method for image information processing are disclosed. The system for image information processing includes: at least one image pickup terminal for providing image data picked up through a camera; an image information processing server for processing data collected from at least one image pickup terminal into data of a new format; and an application server for receiving the processed data from the image information processing server and providing the same to at least one user terminal. The amount of transmission data can be reduced and the reliability of information security can be increased since it is possible to allocate unique IDS to a plurality of image pickup terminals and application servers and identify the image pickup terminals and application servers only by their unique IDs without containing any particular information upon data transmission.

Abstract: An apparatus and method for protecting radio frequency identification (RFID) data in a communication between a RFID tag and a RFID reader are provided. In the apparatus and method for protecting RFID data, message header information transmitted while communicating the RFID tag and the RFID reader is used to perform an encryption operation for important data, thereby protecting the important data included in the RFID tag. In the present invention, information of the RFID tag can be protected from an illegitimate eavesdropper and an ill-intentioned and unusual message can be detected, thereby ensuring the security of a RFID system.

Abstract: There is provided a system and method for providing an application service using image data. One image data processing server collects images (for example, still images and moving images) captured by various kinds of image capturing apparatuses, such as CCTV systems and processes the collected images into data required to provide application services. A plurality of application service servers only provide processed data of the image data processing server without requiring an additional process to a display device of a user. Accordingly, the configuration of each of the application service servers is simplified to thereby reduce manufacturing costs.

Abstract: A user authentication method and apparatus using a face image are provided. The method includes transforming a face image in a normalized spatial domain into frequency-domain data, extracting valid transform coefficients from the frequency-domain data based on energy-concentrated region information, extracting a feature vector from the extracted valid transform coefficients, and performing user authentication by comparing the extracted feature vector with a previously registered feature vector. Accordingly, it is possible to perform user authentication using a face image while using a minimum data dimension, thereby improving the speed and precision thereof.

Abstract: Provided a secure pattern recognition method. The method includes: receiving data and generating a probe by converting the received data into a template for pattern recognition; accessing a gallery that is a template registered and stored in advance; determining a region to which the probe belongs and obtaining the center point of the region; obtaining a hash value of the center point and coordinate of the probe; and determining whether or not the hash value of the center point and a hash value stored in the gallery are equal and determining whether or not the probe and the gallery are classified into the same class by calculating whether or not the coordinate of the probe is inside a decision boundary configured with thresholds on the basis of the coordinates of the center point.

Abstract: Provided is a certificate transmission server transmitting a certificate stored in a fixed terminal to a mobile terminal, a system including the same, and a method using the same. The method includes forming a security channel to the mobile terminal and performing authentication of the mobile terminal, forming a security channel to the fixed terminal and performing authentication of the fixed terminal, and if the authentication of the mobile terminal and the fixed terminal is successful, receiving the certificate from the fixed terminal and transmitting the certificate to the mobile terminal. Accordingly, authentication of a mobile terminal and a fixed terminal can be performed by a certificate transmission server, and the certificate can be transmitted by establishing a safe communication channel.

Abstract: A method and apparatus for extracting a face feature to construct a face search system having a high recognition rate are provided. The method includes calculating an average image of each of a plurality of candidates having one or more face images to which different weights are given according to an order in which the face images are acquired and calculating a total average image of all face images of the plurality of candidates, calculating a between-class scatter matrix based on a difference between each candidate's average image and the total average image and a within-class scatter matrix based on a difference between each candidate's average image and each candidate's predetermined face image of the one or more face images, and generating a base vector that maximizes a criterion defined by a ratio between the between-class scatter matrix and the within-class scatter matrix.

Abstract: Provided are a method and an apparatus for accurately detecting positions of eyes in an input face image. The method includes extracting a symmetric face region from a face image based on magnitude and phase of gradient in each pixel of the face image; detecting available eye positions based on brightness information of the extracted face region; verifying regions around each of the detected eye positions with a classifier which determines whether an input image is an eye image using information obtained by supervised learning on sample images. According to the present invention, faulty eye detection is prevented by removing obscuring elements such as illumination, glasses and hair from an input face image. Also, eye coordinates can be extracted more accurately using an eye classifier.

Abstract: Provided is an RFID tag. When no external pressure is applied to a packaging structure, a wire for transmitting power and data from an antenna is separated from an RFID chip by an air layer. When external pressure is applied to the packaging structure, the wire is connected to the RFID chip to transmit the power and data between the antenna and the RFID chip.

Abstract: A wireless communication medium includes an antenna, an analog signal processor, a digital signal processor, and a central processing unit & logic module. The antenna transmits and receives a signal to and from an external apparatus. The analog signal processor converts an analog signal to a digital signal, and converts a digital signal to an analog signal. The digital signal processor demodulates the digital signal, detects the start and end of data, and generates a first control signal for determining whether data is transmitted to the external apparatus and a second control signal for perceiving the end of data, blocking the reception of data, modulating data, and determining whether modulated data is transmitted to the external apparatus. The central processing unit & logic module processes data received from and transmitted to the external apparatus. Accordingly, an efficiency of processing a RF signal can be improved.