公开(公告)号：US20190215633A1

公开(公告)日：2019-07-11

申请号：US16356410

申请日：2019-03-18

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Seung-Kwon BEACK ,  Jeong-Il SEO ,  Dae-Young JANG ,  Tae-Jin LEE ,  Yong-Ju LEE ,  Jin-Woo HONG ,  Jin-Woong KIM

IPC分类号： H04S7/00 ,  G10L19/008

CPC分类号： H04S7/30 ,  G10L19/008 ,  H04S2400/11

摘要： The present research relates to controlling rendering of multi-object or multi-channel audio signals. The present research provides a method and apparatus for controlling rendering of multi-object or multi-channel audio signals based on spatial cues in a process of decoding the multi-object or multi-channel audio signals. To achieve the purpose, the method suggested in the research controls rendering in a spatial cue domain in the process of decoding the multi-object or multi-channel audio signals.

公开(公告)号：US20130132098A1

公开(公告)日：2013-05-23

申请号：US13732682

申请日：2013-01-02

申请人： Electronics and Telecommunications Research Institute

发明人： Seung-Kwon BEACK ,  Jeong-Il SEO ,  Tae-Jin LEE ,  Yong-Ju LEE ,  Dae-Young JANG ,  Jin-Woo HONG ,  Jin-Woong KIM ,  Kyeong-Ok KANG

IPC分类号： G10L19/008

CPC分类号： G10L19/008 ,  G10L19/0017 ,  G10L19/173 ,  H04S3/002 ,  H04S7/30 ,  H04S2400/11 ,  H04S2420/03

摘要： Provided is an apparatus and method for coding and decoding multi-object audio signals with various channels and providing backward compatibility with a conventional spatial audio coding (SAC) bitstream. The apparatus includes: an audio object coding unit for coding audio-object signals inputted to the coding apparatus based on a spatial cue and creating rendering information for the coded audio-object signals, where the rendering information provides a coding apparatus including spatial cue information for audio-object signals; channel information of the audio-object signals; and identification information of the audio-object signals, and used in coding and decoding of the audio signals.

摘要翻译： 提供了一种用于利用各种信道对多对象音频信号进行编码和解码并提供与常规空间音频编码（SAC）比特流的向后兼容性的装置和方法。 该装置包括：音频对象编码单元，用于基于空间提示对输入到编码装置的音频对象信号进行编码，并创建用于编码的音频对象信号的再现信息，其中，所述再现信息提供包括用于 音频对象信号; 音频对象信号的信道信息; 以及音频对象信号的识别信息，并用于音频信号的编码和解码。

公开(公告)号：US20210218973A1

公开(公告)日：2021-07-15

申请号：US17219985

申请日：2021-04-01

申请人： Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institue for Industry Cooperation ,  Industy-Academia Cooperation Group of Sejong University

发明人： Se-Yoon JEONG ,  Hae-Chul CHOI ,  Jeong-Il SEO ,  Seung-Kwon BEACK ,  In-Seon JANG ,  Jae-Gon KIM ,  Kyung-Ae MOON ,  Dae-Young JANG ,  Jin-Woo HONG ,  Jin-Woong KIM ,  Yung-Lyul LEE ,  Dong-Gyu SIM ,  Seoung-Jun OH ,  Chang-Beom AHN ,  Dae-Yeon KIM ,  Dong-Kyun KIM

IPC分类号： H04N19/159 ,  H04N19/91 ,  H04N19/182 ,  H04N19/13 ,  H04N19/18 ,  H04N19/176 ,  H04N19/129 ,  H04N19/61 ,  H04N19/11 ,  H04N19/103 ,  H04N19/136

摘要： The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

公开(公告)号：US20140074487A1

公开(公告)日：2014-03-13

申请号：US14081471

申请日：2013-11-15

申请人： Electronics and Telecommunications Research Institute

发明人： Jeong-Il SEO ,  Seung-Kwon BEACK ,  In-Seon JANG ,  Dae-Young JANG ,  Jin-Woo HONG ,  Jin-Woong KIM

IPC分类号： G10L19/008

CPC分类号： G10L19/008 ,  G10L19/02 ,  G10L19/18

摘要： Provided is a method for controlling synchronizing downmix signals and MPEG surround side information signals by controlling a delay according to the kind of downmix audio signals in an MPEG surround decoder. When multi-channel audio signals are restored using an HE-AAC decoder and a low-power MPEG surround decoder and complex QMF signals outputted from the HE-AAC decoder are used as downmix signals, a delay unit compensates for a delay caused in a real-to-complex converter. Anther delay unit delays spatial parameters to compensate for a delay caused in QMF and Nyquist banks when time-domain downmix signals are used. Also, when multi-channel audio signals are restored using an HE-AAC decoder and a high-quality MPEG surround decoder and complex QMF signals outputted from the HE-AAC decoder are used as downmix signals, a delay unit compensates for a delay caused in a real-to-complex converter.

摘要翻译： 提供了一种通过根据MPEG环绕解码器中的下混音频信号的种类来控制延迟来控制同步下混信号和MPEG环绕侧信息信号的方法。 当使用HE-AAC解码器和低功率MPEG环绕解码器来恢复多声道音频信号时，使用从HE-AAC解码器输出的复杂QMF信号作为下混合信号，延迟单元补偿实际产生的延迟 复合转换器。 花时延单元延迟空间参数以补偿在使用时域降混信号时在QMF和奈奎斯特银行中引起的延迟。 此外，当使用HE-AAC解码器和高质量MPEG环绕解码器恢复多声道音频信号并且将从HE-AAC解码器输出的复杂QMF信号用作下混合信号时，延迟单元补偿由 一个真实到复杂的转换器。

公开(公告)号：US20130110523A1

公开(公告)日：2013-05-02

申请号：US13722176

申请日：2012-12-20

申请人： Electronics and Telecommunications Research Institute

发明人： Seung-Kwon BEACK ,  Jeong-Il Seo ,  Tae-Jin Lee ,  Yong-Ju Lee ,  In-Seon Jang ,  Jae-Hyoun Yoo ,  Dae-Young Jang ,  Jin-Woo Hong ,  Jin-Woong Kim ,  Kyeong-Ok Kang

IPC分类号： G10L19/00

CPC分类号： G10L19/00 ,  G10L19/008 ,  G10L19/20

摘要： Provided are an apparatus and method for coding and decoding a multi-object audio signal. The apparatus includes a down-mixer for down-mixing the audio signals into one down-mixed audio signal and extracting supplementary information including header information and spatial cue information for each of the audio signals, a coder for coding the down-mixed audio signal, and a supplementary information coder for generating the supplementary information as a bit stream. The header information includes identification information for each of the audio signals and channel information for the audio signals.

摘要翻译： 提供了一种用于对多对象音频信号进行编码和解码的装置和方法。 该装置包括一个下混合器，用于将音频信号下混合为一个下混合音频信号，并提取包括用于每个音频信号的标题信息和空间提示信息的补充信息，用于对混合音频信号进行编码的编码器， 以及用于将补充信息生成为比特流的补充信息编码器。 标题信息包括用于音频信号的每个音频信号和频道信息的识别信息。

公开(公告)号：US20210218972A1

公开(公告)日：2021-07-15

申请号：US17219964

申请日：2021-04-01

申请人： Electronics and Telecommunications Research Institute. ,  Kwangwoon University Research Institute for Industry Cooperation ,  Industry-Academia Cooperation Group of Sejong University

发明人： Se-Yoon JEONG ,  Hae-Chul CHOI ,  Jeong-Il SEO ,  Seung-Kwon BEACK ,  In-Seon JANG ,  Jae-Gon KIM ,  Kyung-Ae MOON ,  Dae-Young JANG ,  Jin-Woo HONG ,  Jin-Woong KIM ,  Yung-Lyul LEE ,  Dong-Gyu SIM ,  Seoung-Jun OH ,  Chang-Beom AHN ,  Dae-Yeon KIM ,  Dong-Kyun KIM

IPC分类号： H04N19/159 ,  H04N19/91 ,  H04N19/182 ,  H04N19/13 ,  H04N19/18 ,  H04N19/176 ,  H04N19/129 ,  H04N19/61 ,  H04N19/11 ,  H04N19/103 ,  H04N19/136

摘要： The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

公开(公告)号：US20180041763A1

公开(公告)日：2018-02-08

申请号：US15784623

申请日：2017-10-16

申请人： Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institute for Industry Cooperation ,  Industry-Academia Cooperation Group of Sejong University

发明人： Se-Yoon JEONG ,  Hae-Chul CHOI ,  Jeong-Il SEO ,  Seung-Kwon BEACK ,  In-Seon JANG ,  Jae-Gon KIM ,  Kyung-Ae MOON ,  Dae-Young JANG ,  Jin-Woo HONG ,  Jin-Woong KIM ,  Yung-Lyul LEE ,  Dong-Gyu SIM ,  Seoung-Jun OH ,  Chang-Beom AHN ,  Dae-Yeon KIM ,  Dong-Kyun KIM

IPC分类号： H04N19/159 ,  H04N19/103 ,  H04N19/11 ,  H04N19/61 ,  H04N19/129 ,  H04N19/176 ,  H04N19/182 ,  H04N19/91 ,  H04N19/18 ,  H04N19/136 ,  H04N19/13

摘要： The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

公开(公告)号：US20200267488A1

公开(公告)日：2020-08-20

申请号：US16869902

申请日：2020-05-08

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Seung-Kwon BEACK ,  Jeong-Il SEO ,  Dae-Young JANG ,  Tae-Jin LEE ,  Yong-Ju LEE ,  Jin-Woo HONG ,  Jin-Woong KIM

IPC分类号： H04S7/00 ,  G10L19/008

摘要： The present research relates to controlling rendering of multi-object or multi-channel audio signals. The present research provides a method and apparatus for controlling rendering of multi-object or multi-channel audio signals based on spatial cues in a process of decoding the multi-object or multi-channel audio signals. To achieve the purpose, the method suggested in the research controls rendering in a spatial cue domain in the process of decoding the multi-object or multi-channel audio signals.

公开(公告)号：US20190297331A1

公开(公告)日：2019-09-26

申请号：US16438785

申请日：2019-06-12

申请人： Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institute for Industry Cooperation ,  Industry-Academia Cooperation Group of Sejong University

发明人： Se-Yoon JEONG ,  Hae-Chul CHOI ,  Jeong-Il SEO ,  Seung-Kwon BEACK ,  In-Seon JANG ,  Jae-Gon KIM ,  Kyung-Ae MOON ,  Dae-Young JANG ,  Jin-Woo HONG ,  Jin-Woong KIM ,  Yung-Lyul LEE ,  Dong-Gyu SIM ,  Seoung-Jun OH ,  Chang-Beom AHN ,  Dae-Yeon KIM ,  Dong-Kyun KIM

IPC分类号： H04N19/159 ,  H04N19/136 ,  H04N19/103 ,  H04N19/11 ,  H04N19/61 ,  H04N19/13 ,  H04N19/176 ,  H04N19/182 ,  H04N19/91 ,  H04N19/18 ,  H04N19/129

摘要： The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

公开(公告)号：US20160165375A1

公开(公告)日：2016-06-09

申请号：US15041209

申请日：2016-02-11

申请人： Electronics and Telecommunications Research Institute

发明人： Jeong-Il SEO ,  Seung-Kwon BEACK ,  Tae-Jin LEE ,  Yong-Ju LEE ,  Dae-Young JANG ,  Kyeongok KANG ,  Jin-Woo HONG ,  Jin-Woong KIM ,  Chieteuk AHN

IPC分类号： H04S7/00 ,  G10L19/008 ,  H04S5/00

CPC分类号： H04S7/308 ,  G10L19/008 ,  H04S5/00 ,  H04S2400/03 ,  H04S2400/11

摘要： Provided is a method and apparatus for generating a side information bitstream of a multi-object audio signal. The apparatus for generating a side information bitstream of a multi-object audio signal includes a spatial cue information input unit configured to receive spatial cue information generated in an encoder of the multi-object audio signal, a preset information input unit configured to receive preset information for the multi-object audio signal, and a side information bitstream generator configured to generate the side information bitstream based on the spatial cue information and the preset information. The side information bitstream includes a header region and a frame region, and the preset information is included in the frame region.

摘要翻译： 提供了一种用于生成多对象音频信号的侧信息比特流的方法和装置。 用于生成多对象音频信号的侧信息比特流的装置包括：空间提示信息输入单元，被配置为接收在多对象音频信号的编码器中生成的空间提示信息;预设信息输入单元，被配置为接收预设信息 以及侧信息比特流发生器，被配置为基于空间提示信息和预设信息生成侧信息比特流。 侧信息比特流包括报头区域和帧区域，并且预设信息被包括在帧区域中。