公开(公告)号：US20220337968A1

公开(公告)日：2022-10-20

申请号：US17590288

申请日：2022-02-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dae Young Jang ,  Kyeongok Kang ,  Jae-hyoun Yoo ,  Yong Ju Lee

IPC: H04S7/00

Abstract: A method and system for processing an obstacle effect in a virtual acoustic space are disclosed. The method includes receiving a parameter for an obstacle candidate plane extracted from spatial information, determining, in response to the parameter, whether the obstacle candidate plane is an obstacle related to a path between a position of a virtual sound source and a position of a user, and applying a sound effect according to the obstacle to an audio signal when the obstacle candidate plane is the obstacle. The obstacle candidate plane is a plane of an object that may become the obstacle in a sound propagation path between the virtual sound source and the user.

公开(公告)号：US10701503B2

公开(公告)日：2020-06-30

申请号：US16126466

申请日：2018-09-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Lee ,  Jeong Il Seo ,  Seung Kwon Beack ,  Kyeong Ok Kang ,  Jin Woong Kim ,  Jae Hyoun Yoo

IPC: H04S3/00 ,  G10L19/008

Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

公开(公告)号：US10687163B1

公开(公告)日：2020-06-16

申请号：US16539091

申请日：2019-08-13

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jae-hyoun Yoo ,  Yong Ju Lee ,  Tae Jin Lee ,  Dae Young Jang

IPC: H04S7/00 ,  H04R5/04 ,  G02B27/01 ,  G06T19/00

Abstract: Disclosed is an audio signal processing method including identifying a sound source provided inside a preset reference distance and a sound source provided outside the reference distance to represent a sound field based on virtual reality (VR) content that is represented in a predetermined virtual space in which a user is located in a VR environment, processing a sound field using three-dimensional (3D) ambisonics based on height information and horizontal information of the sound source provided inside the reference distance, and processing a sound field using two-dimensional (2D) ambisonics based on horizontal information of the sound source provided outside the reference distance.

公开(公告)号：US10657978B2

公开(公告)日：2020-05-19

申请号：US16262144

申请日：2019-01-30

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Lee ,  Tae Jin Lee ,  Kyeong Ok Kang ,  Jin Woong Kim ,  Chie Teuk Ahn

IPC: G10L19/16 ,  G10L19/008 ,  H04H20/88 ,  H04H20/89 ,  H04H20/95 ,  H04N21/233 ,  H04N21/439 ,  H04N21/81 ,  G10L19/20

Abstract: A broadcast transmitting apparatus and method, and a broadcast playback apparatus and method for providing an object-based audio by encoding and decoding a multichannel audio signal are provided. The broadcast transmitting apparatus may generate audio identification information used to determine whether the multichannel audio signal is an object-based audio signal. When the multichannel audio signal is determined to be the object-based audio signal, based on the audio identification information, the broadcast playback apparatus may control and output the multichannel audio signal for each channel.

公开(公告)号：US10645514B2

公开(公告)日：2020-05-05

申请号：US16126466

申请日：2018-09-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Lee ,  Jeong Il Seo ,  Seung Kwon Beack ,  Kyeong Ok Kang ,  Jin Woong Kim ,  Jae Hyoun Yoo

IPC: H04S3/00 ,  G10L19/008

Abstract: Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

公开(公告)号：US10217473B2

公开(公告)日：2019-02-26

申请号：US15230616

申请日：2016-08-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Lee ,  Tae Jin Lee ,  Kyeong Ok Kang ,  Jin Woong Kim ,  Chie Teuk Ahn

IPC: H04H20/88 ,  G10L19/16 ,  H04H20/89 ,  H04H20/95 ,  H04N21/233 ,  H04N21/439 ,  G10L19/008 ,  H04N21/81 ,  G10L19/20

Abstract: A broadcast transmitting apparatus and method, and a broadcast playback apparatus and method for providing an object-based audio by encoding and decoding a multichannel audio signal are provided. The broadcast transmitting apparatus may generate audio identification information used to determine whether the multichannel audio signal is an object-based audio signal. When the multichannel audio signal is determined to be the object-based audio signal, based on the audio identification information, the broadcast playback apparatus may control and output the multichannel audio signal for each channel.

公开(公告)号：US20180102131A1

公开(公告)日：2018-04-12

申请号：US15838031

申请日：2017-12-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju Lee ,  Jeong Il Seo ,  Jae Hyoun Yoo ,  Seung Kwon Beack ,  Jong Mo Sung ,  Tae Jin Lee ,  Kyeong Ok Kang ,  Jin Woong Kim ,  Tae Jin Park ,  Dae Young Jang ,  Keun Woo Choi

IPC: G10L19/008 ,  H04S7/00

CPC classification number: H04S7/00 ,  G10L19/008 ,  H04S7/30 ,  H04S2400/01 ,  H04S2400/03

Abstract: Disclosed is a binaural rendering method and apparatus for decoding a multichannel audio signal. The binaural rendering method may include: extracting an early reflection component and a late reverberation component from a binaural filter; generating a stereo audio signal by performing binaural rendering of a multichannel audio signal base on the early reflection component; and applying the late reverberation component to the generated stereo audio signal.

公开(公告)号：US09030485B2

公开(公告)日：2015-05-12

申请号：US13658039

申请日：2012-10-23

Applicant: Electronics and Telecommunications Research Institute ,  National University of Sciences & Technology

Inventor： Yong Ju Cho ,  Yong Ju Lee ,  Seung Kwon Beack ,  Ji Hun Cha ,  Seong Yong Lim ,  Myung Seok Ki ,  Joo Myoung Seok ,  Jin Woong Kim ,  Muhammad Murtaza Khan ,  Rehan Hafiz ,  Haris Anis ,  Mutahir Latif ,  Ashar Rasul ,  Arshad Ali

IPC: G09G5/00 ,  G09G5/02 ,  G09G5/36 ,  H04N5/46 ,  H04N1/46 ,  H04N1/40 ,  G03F3/08 ,  G06K9/00 ,  G06K9/40 ,  G06K9/36 ,  H04N9/31 ,  G06F3/14

CPC classification number: H04N9/3147 ,  G06F3/1446 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/0693 ,  H04N9/3182 ,  H04N9/3194

Abstract: An apparatus and a method for correcting colors of an image projection device are provided. The method includes: acquiring a photographed image by photographing a sample image projected on projection surface; generating input-output color information for n regions, based on color values of a block in the sample image and corresponding color values of the block in the photographed image; selecting one of the n regions of photographed images as a reference region; generating look-up tables (LUTs) for non-reference regions, based on the reference region and the input and output color information; and correcting colors of input images to be projected by the image projection device using the look-up tables, thereby minimizing color difference of the input images on the projection surface for both intra and inter projection device color correction while simplifying the correction procedure.

Abstract translation: 提供了一种用于校正图像投影装置的颜色的装置和方法。 该方法包括：通过拍摄投影在投影面上的样本图像来获取拍摄图像; 基于样本图像中的块的颜色值和所拍摄图像中的块的对应颜色值，生成n个区域的输入输出颜色信息; 选择拍摄图像的n个区域中的一个作为参考区域; 基于参考区域和输入和输出颜色信息产生用于非参考区域的查找表（LUT）; 并且通过使用查找表来校正由图像投影设备投影的输入图像的颜色，从而使简化校正过程的同时投影设备颜色校正的投影面上的输入图像的色差最小化。