Patents by Inventor Chi Yoon Jeong

Chi Yoon Jeong has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220207382
    Abstract: Provided is an apparatus for refining data and improving the performance of a behavior recognition model by reflecting time-series characteristics of a behavior. The apparatus includes: a data pre-processing unit configured to receive training data and real-time data as input, identify a missing value of sensor data, and interpolate the sensor data; a behavior recognition unit configured to, through a behavior recognition model, generate a behavior recognition classification result for the preprocessed real-time data; a data refinement unit configured to correct the behavior recognition classification result to generate a refined dataset; a learning model update unit configured to analyze a similarity of the refined dataset and, based on a result of the analysis, perform learning to generate the behavior recognition model; and an information output unit configured to express a corrected behavior recognition result to a user.
    Type: Application
    Filed: November 30, 2021
    Publication date: June 30, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seung Eun CHUNG, Chi Yoon JEONG, Hyun Tae JEONG, Ga Gue KIM, Kyoung Ju Noh, Jeong Muk LIM, Ji Youn LIM
  • Publication number: 20220156937
    Abstract: Provided are an apparatus and method for sensory substitution based on depth-time mapping. The apparatus for sensory substitution based on depth-time mapping according to the present invention includes an image segmentation unit configured to generate a plurality of depth images by segmenting three-dimensional (3D) image information based on depth, a sensory substitution unit configured to generate pieces of sensory substitution information by converting at least any one of the plurality of depth images into preset sensory information, a depth-time mapping unit configured to map the sensory substitution information to a time axis based on depth information corresponding to the depth image, and an output unit configured to sequentially output the pieces of sensory substitution information in order mapped to the time axis.
    Type: Application
    Filed: November 15, 2021
    Publication date: May 19, 2022
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Chi Yoon JEONG, Moo Seop KIM, Kyeong Deok MOON, Yun Kyung PARK
  • Publication number: 20210201698
    Abstract: A sensory substitution method includes obtaining a color image by using a sensor device, converting color information about the color image, received from the sensor device, into tactile information by using a user terminal, and generating a tactile stimulus corresponding to the tactile information received from the user terminal by using a tactile output device.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 1, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Jun Seok Park, Moo Seop Kim, Kyeong Deok Moon, Yun Kyung Park, Sung Yong Shin, Hyung Cheol Shin, Chang Mok Oh, Chi Yoon Jeong
  • Publication number: 20210137403
    Abstract: Provided are a sensory substitution control device and method. The sensory substitution device includes a reaction signal collector configured to collect a user's response or reaction signal to a sensory substitution signal received from a sensory substitution device, an environmental information collector configured to collect environmental information of the user who receives the substitution signal, a sensory substitution efficiency analyzer configured to analyze the user's sensory substitution efficiency delivered by the sensory substitution device on the basis of the collected environmental information and generate an adjustment signal for adjusting the substitution signal according to the sensory substitution efficiency, and an adjustment signal transmitter configured to provide a correction signal according to the analyzed environmental information-specific sensory substitution efficiency of the sensory substitution signal to the sensory substitution device.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 13, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Moo Seop KIM, Kyeong Deok MOON, Yun Kyung PARK, Chi Yoon JEONG
  • Publication number: 20210121656
    Abstract: Provided is a sensory substitution apparatus and method that combines two or more pieces of multi-sense sensory information to be converted into different multi-sense sensory information, in which received pieces of multiple information are combined to suit sensory characteristics of the user's body and efficiently transmitted to a different sensory organ. According to the present invention includes: receiving input sensory information; classifying the input sensory information; calculating an importance of each of individual sensory information; determining a target sense for which part or all of the individual sensory information, of which an importance is calculated, is to be converted into a new sensory signal incongruent with the corresponding individual sense; and converting the input sensory information into target sensory information to be transmitted to the determined target sense which is an organ.
    Type: Application
    Filed: October 15, 2020
    Publication date: April 29, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Moo Seop KIM, Kyeong Deok MOON, Yun Kyung PARK, Chi Yoon JEONG
  • Publication number: 20210114698
    Abstract: Provided is an autonomous ship navigation apparatus including an acquisition unit configured to acquire a surrounding environment image, marine information, and navigation information, a map generation unit configured to generate a grid map by displaying topography, a host ship, and an obstacle corresponding to the marine information and the navigation information in the surrounding environment image, and a sailing method determination unit configured to determine a sailing method of a ship through deep reinforcement learning based on the grid map, the marine information, and the navigation information.
    Type: Application
    Filed: October 16, 2020
    Publication date: April 22, 2021
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Kyeong Deok Moon, Yun Kyung Park, Chi Yoon Jeong
  • Publication number: 20160259978
    Abstract: A method and apparatus for detecting a harmful video is provided. The apparatus includes an image collection unit configured to sample a video which is input, and collect N image frames (a natural number larger than or equal to 2) every predetermined period; an image analysis unit including M (a natural number larger than or equal to 2) analyzers, each analyzer analyzing a different characteristic of an image for determining harmfulness of the video; a scheduler configured to determine a plurality of analyzers for analyzing the collected N image frames among the M analyzers, and allocate at least one among the N image frames to each of the plurality of determined analyzers; and a harmfulness determination unit configured to integrate analysis results of the plurality of determined analyzers and determine the harmfulness of the video.
    Type: Application
    Filed: March 2, 2016
    Publication date: September 8, 2016
    Inventors: Chi-Yoon JEONG, Seung-Wan HAN
  • Patent number: 9208226
    Abstract: Disclosed herein are an apparatus and method for generating evidence video. The apparatus includes a video object indexing unit, a video object search unit, and an evidence video generation unit. The video object indexing unit recognizes an object by storing and analyzing videos received from multiple surveillance cameras, extracts the features of the recognized object, and then generates object metadata. The video object search unit compares received search conditions with the object metadata, and then outputs search results, including the feature information of at least one object, which corresponds to the search conditions. The evidence video generation unit generates an evidence video by aggregating only videos including a specific object selected from the search results.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 8, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Su-Wan Park, Kyung-Soo Lim, Geon-Woo Kim, Min-Ho Han, Su-Gil Choi, Chi-Yoon Jeong, Moo-Seop Kim, Jong-Wook Han
  • Patent number: 9197851
    Abstract: A videotelephony image modulation apparatus and method detects an event having a possibility of information leakage by analyzing an image and provides a secured calling mode of masking all or a part of the image and transmitting a masked image obtained through the masking.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: November 24, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Chi Yoon Jeong, Moo Seop Kim, SuGil Choi, Sooncheol Shin
  • Publication number: 20150221097
    Abstract: Disclosed herein are a harmless frame filter, a harmful image blocking apparatus having the filter, and a method for filtering harmless frames, which can rapidly identify clearly harmless images and exclude those harmless images in advance upon determining harmful image content including obscene images in real time, thus improving task efficiency. The harmless frame filter includes a primary filtering unit for extracting skin region candidate pixels from an input image, and primarily filtering harmless frames, based on a ratio of the skin region candidate pixels to the input image, and a secondary filtering unit for generating a Block Binary Pattern (BBP) histogram representing distribution characteristics of the skin region candidate pixels in a two-dimensional (2D) image space, and secondarily filtering harmless frames by comparing predefined learning data with the BBP histogram.
    Type: Application
    Filed: October 30, 2014
    Publication date: August 6, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung-Jae YU, Seung-Wan HAN, Moo-Seop KIM, Su-Gil CHOI, Chi-Yoon JEONG
  • Publication number: 20150125074
    Abstract: Disclosed are an apparatus and method for extracting a skin area to block a harmful image. The apparatus includes an image extraction unit, a skin sample area extraction unit, a background sample area extraction unit, a probability density function computation unit, and a skin area extraction unit. The image extraction unit extracts an image from image media. The skin sample area extraction unit extracts a skin sample area of the image based on prior information. The background sample area extraction unit extracts a background sample area of the image based on the prior information. The probability density function computation unit calculates the probability density functions of the skin sample area and the background sample area. The skin area extraction unit extracts a skin area from the image based on the probability density function of the skin sample area and the probability density function of the background sample area.
    Type: Application
    Filed: February 12, 2014
    Publication date: May 7, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jung-Jae Yu, Seung-Wan Han, Moo-Seop Kim, Su-Gil Choi, Chi-Yoon Jeong
  • Patent number: 8965823
    Abstract: The present invention relates to an insider threat detection device and method which collects and analyzes a variety of information generated by insiders working for an organization, such as behaviors, events, and states of the insider, and detects an abnormal insider who may become a potential threat. According to the present invention, the insider threat detection method and apparatus analyzes information related to insiders using the correlation analysis method, and previously detects an abnormal sign of an insider who may become a potential threat to an organization, which makes it possible to protect the organization from attacks on systems inside the organization or seizure of important information inside the organization.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: February 24, 2015
    Assignee: Electronics & Telecommunications Research Institute
    Inventors: Seon Gyoung Sohn, Chi Yoon Jeong, Dong Ho Kang, Jung Chan Na, Ik Kyun Kim, Hyun Sook Cho
  • Patent number: 8775613
    Abstract: A network monitoring system includes: a traffic information generating apparatus for generating traffic information. Further, the network monitoring system includes a security event collecting apparatus for collecting the traffic information generated by the traffic information generating apparatus by referring to pre-stored traffic information, grouping the collected traffic information, and then extracting service information. Furthermore, the network monitoring system includes a service abnormal condition detecting apparatus for detecting a port number of a transport layer of service information extracted from the security event collecting apparatus and the occurrence frequency of the transport layer, determining the continuity of the port number and the uniformity of the occurrence frequency, and displaying a service abnormal condition.
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: July 8, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Beom Hwan Chang, Chi Yoon Jeong, Seon-Gyoung Sohn
  • Publication number: 20140160228
    Abstract: A videotelephony image modulation apparatus and method detects an event having a possibility of information leakage by analyzing an image and provides a secured calling mode of masking all or a part of the image and transmitting a masked image obtained through the masking.
    Type: Application
    Filed: December 10, 2013
    Publication date: June 12, 2014
    Applicant: Electronics and Telecommunications Research Instit
    Inventors: Chi Yoon JEONG, Moo Seop KIM, SuGil CHOI, Sooncheol SHIN
  • Publication number: 20130283061
    Abstract: Provided are an image processing method and method for privacy protection of a captured image. The image processing method divides an original image into a plurality of regions, assigns access privileges to the respective regions, and encrypts the regions, and provides an image by performing masking to each region or provides an image without performing masking, based on the access privilege of an image access request, and achieving privacy protection from the leakage of an original image. Accordingly, when storing a captured PC screen image and providing the stored image, an image region having no relation to a user's activities is stored after hierarchical encryption, preventing privacy infringement.
    Type: Application
    Filed: November 12, 2012
    Publication date: October 24, 2013
    Applicant: Electronics & Telecommunications Research Institute
    Inventor: Chi Yoon JEONG
  • Publication number: 20130234928
    Abstract: An apparatus for controlling a screen includes a data reception unit configured to receive data and one or more events to be displayed on a screen; and a user input unit configured to provide input information attributable to manipulation of a user input device. Further, the apparatus for controlling the screen includes a screen control unit configured to determine whether to update or switch the screen based on the events and the input information.
    Type: Application
    Filed: December 12, 2012
    Publication date: September 12, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventor: Chi Yoon JEONG
  • Publication number: 20130091085
    Abstract: The present invention relates to an insider threat detection device and method which collects and analyzes a variety of information generated by insiders working for an organization, such as behaviors, events, and states of the insider, and detects an abnormal insider who may become a potential threat. According to the present invention, the insider threat detection method and apparatus analyzes information related to insiders using the correlation analysis method, and previously detects an abnormal sign of an insider who may become a potential threat to an organization, which makes it possible to protect the organization from attacks on systems inside the organization or seizure of important information inside the organization.
    Type: Application
    Filed: May 18, 2012
    Publication date: April 11, 2013
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Seon Gyoung SOHN, Chi Yoon Jeong, Dong Ho Kang, Jung Chan Na, Ik Kyun Kim, Hyun Sook Cho
  • Publication number: 20130050496
    Abstract: Disclosed is a security monitoring apparatus using augmented reality, including: an integrated event collector that collects events generated in a physical security region and an information security region; a security condition information generator that generates security condition information about each object to be monitored based on the collected events; and a security condition display unit that augments and displays the security condition information about the objects to be monitored existing in the videos photographed by cameras in the videos.
    Type: Application
    Filed: July 17, 2012
    Publication date: February 28, 2013
    Applicant: Electronics & Telecommunications Research Institute
    Inventor: Chi Yoon JEONG
  • Patent number: 8341721
    Abstract: Provided are a web-based traceback system and method using reverse caching proxy, which can effectively protect a web server against various attacks launched by illegitimate user by acquiring network information and location information of users who attempt to access the web server through an anonymous server, without a requirement of installing any agent program in the users' clients.
    Type: Grant
    Filed: May 18, 2009
    Date of Patent: December 25, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong Hyun Kim, Geon Lyang Kim, Jong Ho Ryu, Chi Yoon Jeong, Seon Gyoung Sohn, Beom Hwan Chang, Jung-Chan Na, Hyun Sook Cho
  • Patent number: 8307441
    Abstract: There are provided a system and method for tracing back an attacker by using centroid decomposition technique, the system including: a log data input module collecting log data of an intrusion alarm from an intrusion detection system; a centroid node detection module generating a shortest path tree by applying a shortest path algorithm to network router connection information collected by a network administration server, detecting a centroid node by applying centroid decomposition technique removing a leaf-node to the shortest path tree, and generating a centroid tree whose node of each level is the detected centroid node; and a traceback processing module requesting log data of a router matched with the node of each level of the centroid tree, and tracing back a router identical to the log data of the collected intrusion alarm as a router connected to a source of an attacker by comparing the log data of the router with the log data of the collected intrusion alarm.
    Type: Grant
    Filed: November 21, 2007
    Date of Patent: November 6, 2012
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jong Hyun Kim, Geon Lyang Kim, Seon Gyoung Sohn, Beom Hwan Chang, Chi Yoon Jeong, Jong Ho Ryu, Jung Chan Na, Jong Soo Jang, Sung Won Sohn