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公开(公告)号：US11450033B2
公开(公告)日：2022-09-20
申请号：US17362023
申请日：2021-06-29
Inventor： Jong Sung Kim , Youn Hee Gil , Seong Min Baek , Hee Sook Shin , Seong Il Yang , Cho Rong Yu , Sung Jin Hong
Abstract: Provided are an apparatus and method for experiencing an augmented reality (AR)-based screen sports match which enable even a child, an elderly person, and a person with a disability to easily and safely experience a ball sports match, such as tennis, badminton, or squash, as a screen sports match without using a wearable marker or sensor, a wearable display, an actual ball, and an actual tool.
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Patent Agency Ranking
公开(公告)号：US12260612B2
公开(公告)日：2025-03-25
申请号：US17509615
申请日：2021-10-25
Inventor： Jong Sung Kim , Seong Il Yang , Min Sung Yoon , Si Hwan Jang
IPC: G06V10/764 , G06V10/28 , G06V20/40
Abstract: Provided is an impact motion recognition system for screen-based multi-sport coaching. The impact motion recognition system for screen-based multi-sport coaching includes: a high-speed stereo camera device installed on an upper end of a target object including a hitting body and an moving body and configured to acquire a stereo image sequence in which the hitting body and the moving body are photographed; an object detection unit configured to detect an object in the acquired stereo image sequence; a moving body recognition unit configured to identify whether an impact motion has occurred in the detected object to recognize the moving body; a hitting body detection unit configured to, based on the moving body being recognized through the moving body recognition unit, detect the object excluding the moving body as the hitting body; a target object tracking unit configured to continuously detect a center point of the moving body and a feature point of the hitting body in a subsequent stereo image sequence using characteristics of the moving body and the hitting body that are detected, and continuously track the center point of the moving body and the feature point of the hitting body until the center point of the moving body and the feature point of the hitting body are not detected; and a motion analysis unit configured to analyze three-dimensional (3D) motion information of the target object using the center point of the moving body and the feature point of the hitting body, which are detected through the target object tracking unit, and high-speed stereo camera correction data.
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公开(公告)号：US11182926B2
公开(公告)日：2021-11-23
申请号：US16738802
申请日：2020-01-09
Inventor： Jong Sung Kim , Myung Gyu Kim , Woo Suk Kim , Seong Min Baek , Sang Woo Seo , Sung Jin Hong
Abstract: A system for recognizing collision positions of a plurality of moving objects in a screen includes an infrared camera configured to obtain an image frame when a plurality of moving objects move toward a screen, a memory configured to store a program for calculating a collision position in the screen on the basis of the image frame, and a processor configured to execute the program stored in the memory. By executing the program, the processor detects all of the plurality of moving objects from the image frame to generate a graph where moving objects included in a successive image frame are connected to one another, and calculates a collision position of the moving object included in the image frame and a collision position of the moving object in the screen on the basis of the graph.
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公开(公告)号：US10796437B2
公开(公告)日：2020-10-06
申请号：US16016844
申请日：2018-06-25
Inventor： Jong Sung Kim , Myung Gyu Kim , Woo Suk Kim , Seong Min Baek , Sang Woo Seo , Sung Jin Hong
Abstract: Provided are a system and method for simultaneously reconstructing an initial three-dimensional (3D) trajectory and velocity of an object by using single camera images. The system for simultaneously reconstructing an initial 3D trajectory and velocity of an object by using single camera images includes a receiver configured to receive 3D world coordinate information of a starting point of an object and object-captured image information of a single camera, a two-dimensional (2D) coordinate acquisition unit configured to acquire 2D image coordinates of the object from the object-captured image information, and a reconstructor configured to simultaneously reconstruct an initial 3D velocity and trajectory of the object by applying a 3D motion equation to the 2D image coordinates and depth information from the single camera to the object.
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公开(公告)号：US11436868B2
公开(公告)日：2022-09-06
申请号：US17104949
申请日：2020-11-25
Inventor： Jong Sung Kim , Seung Joon Kwon , Sang Woo Seo , Yeong Jae Choi
Abstract: Provided is a system and method for automatically recognizing user motion. The system for automatically recognizing user motion includes an input unit configured to receive three-dimensional (3D) measurement data, a memory which stores a program for performing automatic recognition on 3D user motion using 3D low-quality depth data and a deep learning model, and a processor configured to execute the program, wherein the processor converts the 3D low-quality depth data into 3D high-quality image data.
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公开(公告)号：US10122921B2
公开(公告)日：2018-11-06
申请号：US15240087
申请日：2016-08-18
Inventor： Jong Sung Kim , Myung Gyu Kim , Woo Suk Kim , Sang Woo Seo , Il Kwon Jeong
Abstract: Provided is an apparatus and method for automatically recognizing an object by using a low-speed camera in a dual photographing mode, in which the apparatus includes an image acquirer and an image information analyzer. In the present disclosure, without using a separate motion sensor a movement state of a specific object during sports activities may be automatically recognized by using a successive photographing function of a low-speed camera in a dual photographing mode. Further, once an object starts moving, high-speed images in a multiple exposure mode may be automatically captured by using a high-speed photographing function of the low-speed camera in a dual photographing mode without using an expensive high-speed camera, and based on the captured images, movement information, including a movement speed and direction of the sports ball, the force and axis of rotation of the ball, and the like, is automatically analyzed to generate object movement information.
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