Patents by Inventor Yang Keun Ahn
Yang Keun Ahn 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).
-
Patent number: 11373451Abstract: Provided are a device and method for recognizing a gesture. The device includes a video image acquirer configured to acquire a video including a gesture object by photographing the gesture object, a center point detector configured to detect a center point of the gesture object in frames of the acquired video, a velocity calculator configured to calculate a velocity of the gesture object by calculating a difference between motion coordinates on each axis on the basis of the center point of the gesture object, and a gesture recognizer configured to recognize a gesture of the gesture object by comparing the calculated velocity of the gesture object with a preset velocity.Type: GrantFiled: June 7, 2019Date of Patent: June 28, 2022Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Yang Keun Ahn, Young Choong Park
-
Patent number: 10817069Abstract: Provided are a navigation gesture recognition system and a gesture recognition method thereof. The navigation gesture recognition system includes a depth camera configured to capture a depth image, a memory configured to store a program for recognizing a navigation gesture of an object, and a processor configured to execute the program stored in the memory, wherein the processor executes the program to generate a virtual spatial touch screen from the depth image, detects a moving direction of a gesture of the object included in the depth image on the spatial touch screen, and generates a control command corresponding to the moving direction.Type: GrantFiled: May 18, 2018Date of Patent: October 27, 2020Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Yang Keun Ahn, Young Choong Park
-
Patent number: 10810800Abstract: Provided is an apparatus for providing virtual reality content of a moving means, the apparatus including a plurality of transparent display units mounted on front and side surfaces of the moving means and configured to display virtual reality content, a dynamic motion sensing unit configured to detect a three-dimensional (3D) dynamic motion of the moving means, and a control unit configured to control reproduction of previously stored virtual reality content so as to display virtual reality content corresponding to the 3D dynamic motion on the plurality of transparent display units, when the 3D dynamic motion of the moving means is detected by the dynamic motion sensing unit.Type: GrantFiled: August 23, 2018Date of Patent: October 20, 2020Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Yang Keun Ahn, Young Choong Park
-
Publication number: 20190392217Abstract: The present application relates to a method of representing content of an augmented reality (AR) simulator, and more specifically, to a service method for representing AR content in a simulator for a moving apparatus (an automobile, a monorail car, a cable car, a drone, etc.) according to a background. The method of representing content of an AR simulator includes recognizing AR code using background image content presented by a background screen controller and synchronizing AR content corresponding to the recognized AR code with the background image content and outputting the synchronized AR content.Type: ApplicationFiled: June 19, 2019Publication date: December 26, 2019Inventors: Yang Keun AHN, Young Choong Park
-
Publication number: 20190377938Abstract: Provided are a device and method for recognizing a gesture. The device includes a video image acquirer configured to acquire a video including a gesture object by photographing the gesture object, a center point detector configured to detect a center point of the gesture object in frames of the acquired video, a velocity calculator configured to calculate a velocity of the gesture object by calculating a difference between motion coordinates on each axis on the basis of the center point of the gesture object, and a gesture recognizer configured to recognize a gesture of the gesture object by comparing the calculated velocity of the gesture object with a preset velocity.Type: ApplicationFiled: June 7, 2019Publication date: December 12, 2019Inventors: Yang Keun AHN, Young Choong PARK
-
Patent number: 10297041Abstract: Provided is an apparatus for recognizing user postures. The apparatus recognizes detailed postures such as a stand posture, a bending forward posture, a bending knees posture, a tilt right posture, and a tilt left posture, based on a variation between body information at a previous time and body information at a current time.Type: GrantFiled: April 11, 2017Date of Patent: May 21, 2019Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Yang Keun Ahn, Kwang Mo Jung, Chan Gyu Kim
-
Publication number: 20190147654Abstract: Provided is an apparatus for providing virtual reality content of a moving means, the apparatus including a plurality of transparent display units mounted on front and side surfaces of the moving means and configured to display virtual reality content, a dynamic motion sensing unit configured to detect a three-dimensional (3D) dynamic motion of the moving means, and a control unit configured to control reproduction of previously stored virtual reality content so as to display virtual reality content corresponding to the 3D dynamic motion on the plurality of transparent display units, when the 3D dynamic motion of the moving means is detected by the dynamic motion sensing unit.Type: ApplicationFiled: August 23, 2018Publication date: May 16, 2019Inventors: Yang Keun AHN, Young Choong PARK
-
Publication number: 20190138104Abstract: Provided are a navigation gesture recognition system and a gesture recognition method thereof. The navigation gesture recognition system includes a depth camera configured to capture a depth image, a memory configured to store a program for recognizing a navigation gesture of an object, and a processor configured to execute the program stored in the memory, wherein the processor executes the program to generate a virtual spatial touch screen from the depth image, detects a moving direction of a gesture of the object included in the depth image on the spatial touch screen, and generates a control command corresponding to the moving direction.Type: ApplicationFiled: May 18, 2018Publication date: May 9, 2019Inventors: Yang Keun AHN, Young Choong PARK
-
Patent number: 10129537Abstract: An autostereoscopic three-dimensional (3D) display apparatus is provided. The autostereoscopic 3D display apparatus includes an image display unit configured to display a 3D image including a 3D virtual object or a 3D image including a 3D virtual object and text; and an optical unit configured to reflect or transmit the displayed 3D image from the image display unit toward a viewer, transmit an image of a real object facing the viewer, and display a combination of the 3D image and the image of the real object to the viewer.Type: GrantFiled: March 24, 2017Date of Patent: November 13, 2018Assignee: Korea Electronics Technology InstituteInventors: Yang Keun Ahn, Kwang Soon Choi, Young Choong Park
-
Patent number: 10013070Abstract: Provided is a hand gesture recognition technique. A hand gesture recognition system according to one aspect of the present invention includes an image capturing unit that captures an image of a gesture recognition region to acquire a depth image; a hand region extractor that extracts a hand region from the depth image; and a hand gesture recognizer that analyzes the extracted hand region to recognize a hand gesture included in the depth image as a grasp gesture or a release gesture.Type: GrantFiled: September 22, 2016Date of Patent: July 3, 2018Assignee: Korea Electronics Technology InstituteInventors: Yang Keun Ahn, Young Choong Park
-
Publication number: 20180103210Abstract: A camera system for object recognition is disclosed. In one aspect, the system includes an active three-dimensional (3D) sensor configured to obtain a 3D point cloud which corresponds to 3D position values of an object, and a controller configured to generate control data for controlling a zoom value, a pan value, and a tilt value which correspond to the 3D position values. The system also includes a camera configured to photograph the object by performing one or more of zooming, panning, and tilting on the basis of the control data.Type: ApplicationFiled: March 2, 2017Publication date: April 12, 2018Inventors: Young Choong Park, Kwang Soon Choi, Yang Keun Ahn
-
Publication number: 20180103249Abstract: An autostereoscopic three-dimensional (3D) display apparatus is provided. The autostereoscopic 3D display apparatus includes an image display unit configured to display a 3D image including a 3D virtual object or a 3D image including a 3D virtual object and text; and an optical unit configured to reflect or transmit the displayed 3D image from the image display unit toward a viewer, transmit an image of a real object facing the viewer, and display a combination of the 3D image and the image of the real object to the viewer.Type: ApplicationFiled: March 24, 2017Publication date: April 12, 2018Inventors: Yang Keun AHN, Kwang Soon CHOI, Young Choong PARK
-
Publication number: 20180089854Abstract: A three-dimensional (3D) transparent display device is provided. The 3D transparent display device includes a position obtaining unit configured to obtain information regarding 3D positions of both eyes of a user and a 3D position of a real object; a controller configured to estimate a two-dimensional (2D) position on a display screen at which an image of a virtual object is to be displayed on the basis of the 3D positions of the both eyes of the user and the 3D position of the real object; and a 3D transparent display panel configured to display the image of the virtual object on the display screen on the basis of the estimated 2D position of the virtual object.Type: ApplicationFiled: March 24, 2017Publication date: March 29, 2018Inventors: Yang Keun AHN, Kwang Soon CHOI, Young Choong PARK
-
Patent number: 9811167Abstract: Provided are an apparatus and method for inputting a character based on a hand gesture. The apparatus includes a gesture recognition unit configured to recognize hand gestures of a user corresponding to horizontal directions, vertical directions, and diagonal directions, a control unit configured to control character input according to the directions of the recognized hand gestures, and a display unit configured to display a character pad for the character input and display characters input according to the directions of the hand gestures recognized on the character pad.Type: GrantFiled: August 3, 2015Date of Patent: November 7, 2017Assignee: Korea Electronics Technology InstituteInventors: Yang Keun Ahn, Kwang Mo Jung
-
Publication number: 20170294029Abstract: Provided is an apparatus for recognizing user postures. The apparatus recognizes detailed postures such as a stand posture, a bending forward posture, a bending knees posture, a tilt right posture, and a tilt left posture, based on a variation between body information at a previous time and body information at a current time.Type: ApplicationFiled: April 11, 2017Publication date: October 12, 2017Inventors: Yang Keun AHN, Kwang Mo JUNG, Chan Gyu KIM
-
Publication number: 20170285759Abstract: Provided is a hand gesture recognition technique. A hand gesture recognition system according to one aspect of the present invention includes an image capturing unit that captures an image of a gesture recognition region to acquire a depth image; a hand region extractor that extracts a hand region from the depth image; and a hand gesture recognizer that analyzes the extracted hand region to recognize a hand gesture included in the depth image as a grasp gesture or a release gesture.Type: ApplicationFiled: September 22, 2016Publication date: October 5, 2017Inventors: Yang Keun Ahn, Young Choong Park
-
Patent number: 9720513Abstract: Provided are an apparatus and method for inputting a character The apparatus includes a recognition unit configured to measure lengths from arbitrary points on a user's hands to respective fingertips and recognize a click gesture using the measured lengths, a control unit configured to control character input according to the recognized click gesture, and a display unit configured to display a character pad for the character input and display a character input according to the click gesture recognized on the character pad.Type: GrantFiled: July 20, 2015Date of Patent: August 1, 2017Assignee: Korea Electronics Technology InstituteInventors: Yang Keun Ahn, Kwang Mo Jung
-
Publication number: 20160274667Abstract: Provided are an apparatus and method for inputting a character The apparatus includes a recognition unit configured to measure lengths from arbitrary points on a user's hands to respective fingertips and recognize a click gesture using the measured lengths, a control unit configured to control character input according to the recognized click gesture, and a display unit configured to display a character pad for the character input and display a character input according to the click gesture recognized on the character pad.Type: ApplicationFiled: July 20, 2015Publication date: September 22, 2016Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Yang Keun AHN, Kwang Mo JUNG
-
Patent number: 9430039Abstract: Provided are an apparatus and method for controlling a virtual mouse based on a hand motion. The apparatus includes an image processing unit configured to measure a maximum horizontal width of a hand region of a user and a width of an index finger in any one of a first depth image captured in a state in which the index finger is spread out in a vertical direction with his or her fist and a second depth image captured in a state in which the index finger is folded with the fist, a hand motion recognizing unit configured to compare the maximum horizontal width and the width of the index finger to recognize whether the index finger is folded, and a function matching unit configured to match a change in a folded state of the index finger to a pre-set first function and output a control signal for the function.Type: GrantFiled: July 7, 2014Date of Patent: August 30, 2016Assignee: Korea Electronics Technology InstituteInventors: Yang Keun Ahn, Kwang Mo Jung
-
Patent number: 9430702Abstract: An apparatus and a method for inputting a character using user's motion is provided. When a user's hand makes a motion, a character input pattern is recognized from the motion, a character to be input is determined by comparing the recognized character input pattern with character input pattern information which predefines various character input patterns and corresponding characters, and the determined character is displayed.Type: GrantFiled: November 10, 2014Date of Patent: August 30, 2016Assignee: Korea Electronics Technology InstituteInventors: Yang Keun Ahn, Chan Kyu Kim, Kwang Mo Jung