公开(公告)号：US11343299B2

公开(公告)日：2022-05-24

申请号：US16453200

申请日：2019-06-26

Applicant: LINE Plus Corporation

Inventor： Dongwon Lee

IPC: H04L1/00 ,  H04L65/80 ,  H04N7/14 ,  H04L41/50 ,  H04L41/5009

Abstract: Provided is a method of measuring quality of a video call between a transmitting terminal including processing circuitry and a receiving terminal, the method including processing, by the processing circuitry, original frames included in an original video based on a video call service; replacing, by the processing circuitry, real-time video frames acquired from a camera for a video call with a receiving terminal with at least a portion of the original frames; and transmitting, by the processing circuitry, the portion of the original frames to the receiving terminal as frames for the video call with the receiving terminal through the video call service.

公开(公告)号：US20200007605A1

公开(公告)日：2020-01-02

申请号：US16453200

申请日：2019-06-26

Applicant: LINE Plus Corporation

Inventor： Dongwon Lee

IPC: H04L29/06 ,  H04L12/24 ,  H04N7/14

Abstract: Provided is a method of measuring quality of a video call between a transmitting terminal including processing circuitry and a receiving terminal, the method including processing, by the processing circuitry, original frames included in an original video based on a video call service; replacing, by the processing circuitry, real-time video frames acquired from a camera for a video call with a receiving terminal with at least a portion of the original frames; and transmitting, by the processing circuitry, the portion of the original frames to the receiving terminal as frames for the video call with the receiving terminal through the video call service.

公开(公告)号：US20220058397A1

公开(公告)日：2022-02-24

申请号：US17405526

申请日：2021-08-18

Applicant: LINE Plus Corporation

Inventor： Dongwon Lee

IPC: G06K9/00 ,  G06K9/46 ,  G06T7/00

Abstract: A method of video quality evaluation includes obtaining, by the at least one processor, a reference area of a reference video and a degraded area of a degraded video, based on a matching area of the reference video and the degraded video, using homography estimation; correcting, by the at least one processor, at least one of the reference area and the degraded area; and measuring, by the at least one processor, video quality of the degraded video by comparing a difference between the reference area and the degraded area through a full reference scheme.