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公开(公告)号：KR1020090090246A
公开(公告)日：2009-08-25
申请号：KR1020080057067
申请日：2008-06-17
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단
IPC: H04N19/176 , H04N19/124
CPC classification number: H04N19/176 , H04N19/124 , H04N19/625
Abstract: A multi-dimensional transform and quantization method and an apparatus thereof by using fundamental blocks and reducing the complexity are provided to improve the performance of video data compression by performing the conversion by collecting conversion coefficients. A converting unit(210) performs first conversion about inputted video data. The converting unit extracts the conversion factors of the same frequency from video data. The converting unit performs the second conversion about the extracted conversion factors. A quantizing unit(230) quantizes conversion factors transformed from the second to the fixed numbers. A scale unit(220) produces the first scale factor of video data in the first conversion and the second scale factor of video data in the second conversion.
Abstract translation: 提供了通过使用基本块并降低复杂度的多维变换和量化方法及其装置，以通过收集转换系数执行转换来提高视频数据压缩的性能。 A转换单元（210）对输入的视频数据执行第一转换。 转换单元从视频数据中提取相同频率的转换因子。 转换单元对所提取的转换因子执行第二转换。 量化单元（230）对从第二固定数字变换的转换因子进行量化。 缩放单元（220）在第一转换中产生视频数据的第一比例因子和第二转换中的视频数据的第二比例因子。
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公开(公告)号：KR1020090075607A
公开(公告)日：2009-07-08
申请号：KR1020080065510
申请日：2008-07-07
Applicant: 한국전자통신연구원
IPC: H04N19/11 , H04N19/137 , H04N19/176
CPC classification number: H04N19/50 , H04N19/11 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/51 , H04N19/513 , H04N19/593 , H04N19/61
Abstract: An encoding device for encoding an intra image based on reference block waveform efficiently decoding the image is provided to improve the image quality and reduce the encoded size of the image by efficiently encoding an input image. An input image dividing unit(210) divides the input image into a plurality of image blocks including the first image block and the second image block. A waveform information generating unit(220) selects a plurality of reference pixels between pixels included in the first image block and a plurality of reference pixels. The waveform information generating unit produces the first corrugated information about the first image block based on the difference of the pixel values between the reference pixels. Second waveform information about a second image block is generated based on the difference included in the second image block of the pixel value.
Abstract translation: 提供了一种用于基于有效地解码图像的参考块波形对帧内图像进行编码的编码装置，以通过有效地编码输入图像来提高图像质量并降低图像的编码尺寸。 输入图像分割单元（210）将输入图像划分为包括第一图像块和第二图像块的多个图像块。 波形信息生成单元（220）选择包括在第一图像块中的像素与多个参考像素之间的多个参考像素。 波形信息生成单元基于参考像素之间的像素值的差产生关于第一图像块的第一瓦楞信息。 基于包括在像素值的第二图像块中的差异来生成关于第二图像块的第二波形信息。
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公开(公告)号：KR100903109B1
公开(公告)日：2009-06-16
申请号：KR1020070028883
申请日：2007-03-23
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 한양대학교 산학협력단 , 연세대학교 산학협력단
Abstract: 오디오 신호의 무손실 부호화/복호화 장치 및 그 방법이 개시된다. 현 프레임의 주파수 계수에 대한 양자화 인덱스들로부터 각 레벨에 대한 제1 비트열을 생성하고, 각 레벨에 대한 제1 비트열을 일렬로 나열한 제2 비트열의 런 길이로 구성되는 심볼을 생성한 후, 심볼을 제3 비트열로 부호화한다. 이로써, 오디오 신호의 부호화 성능을 향상시킬 수 있다.
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64.发明公开
公开(公告)号：KR1020080092770A
公开(公告)日：2008-10-16
申请号：KR1020070036585
申请日：2007-04-13
Applicant: 한국전자통신연구원 , 한양대학교 산학협력단 , 광운대학교 산학협력단 , 연세대학교 산학협력단
Abstract: A quantizer and method of an LSF coefficient in a wide-band speech coder using trellis coded quantization algorithm are provided to improve an SD performance and assigned bits by reducing an error transfer as a result of using in parallel both a predictional structure and a non-predictional structure. A quantizer of an LSF coefficient in a wide-band speech coder includes a predictional structure quantizing portion(200), a non-predictional structure quantizing portion(210), and a switching portion(220). The predictional structure quantizing portion calculates a quantized candidate vector by quantizing an LSF coefficient vector, and a predictional quantization final vector of the LSF coefficient vector by trellis coded quantizing the candidate vector with reference to a predicted LSF vector of the LSF coefficient vector. The non-predictional structure quantizing portion calculates a quantized candidate vector by quantizing the LSF coefficient vector, and a non-predictional quantization final vector of the LSF coefficient vector by trellis coded quantizing the candidate vector. The switching portion selects smaller one of differences between the LSF coefficient vector and the predictional and non-predictional quantization final vectors as the final quantization vector of the LSF coefficient vector.
Abstract translation: 提供了使用网格编码量化算法的宽带语音编码器中的LSF系数的量化器和方法，以通过减少作为预测结构和非均匀结构的并行结果的误差传递来改善SD性能和分配比特， 预测结构。 宽带语音编码器中的LSF系数的量化器包括预测结构量化部分（200），非预测结构量化部分（210）和切换部分（220）。 预测结构量化部分通过对参考LSF系数向量的预测LSF向量的量化该候选向量的网格编码来量化LSF系数向量和LSF系数向量的预测量化最终向量来计算量化候选向量。 非预测结构量化部分通过量化该LSF系数向量来计算量化的候选向量，以及通过网格编码量化该候选向量的LSF系数向量的非预测量化最终向量。 切换部分选择LSF系数向量与预测和非预测量化最终向量之间的较小差异作为LSF系数向量的最终量化向量。
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公开(公告)号：KR1020080055578A
公开(公告)日：2008-06-19
申请号：KR1020070028883
申请日：2007-03-23
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 한양대학교 산학협력단 , 연세대학교 산학협력단
CPC classification number: G10L19/0017 , G10L19/002
Abstract: A lossless encoding/decoding apparatus and a method thereof are provided to execute compression on audio signals through bitstreams having small numbers by enhancing the capability of lossless encoding of frequency coefficients. A lossless encoding apparatus includes a bit converter(422), a run length converter(424), and a run length encoder(430). The bit converter generates first bitstreams on respective levels from quantization indexes on frequency coefficients of a current frame. The run length converter generates symbols which are formed by a run length of second bitstreams where the first bit streams are disposed in one row. The run length encoder encodes the symbols to third bitstreams.
Abstract translation: 提供了一种无损编码/解码装置及其方法，通过提高频率系数的无损编码能力，通过具有小数的比特流对音频信号执行压缩。 无损编码装置包括位转换器（422），行程长度转换器（424）和行程编码器（430）。 比特转换器从当前帧的频率系数上的量化索引在相应电平上产生第一比特流。 游程长度转换器产生由第一比特流的行长度形成的符号，其中第一比特流被布置在一行中。 游程长度编码器将符号编码到第三比特流。
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Patent Agency Ranking
公开(公告)号：KR1020080052858A
公开(公告)日：2008-06-12
申请号：KR1020060124564
申请日：2006-12-08
Applicant: 한국전자통신연구원
Abstract: A system and a method of exhibition guide service using panoramic images are provided to offer detailed information corresponding to the present location of a client by checking up the location of the client through location tracing sensors. A location tracing sensor(2) receives information of a client terminal device(1), and transmits the client terminal device information and own information together. A location tracer(3) traces the location of the client terminal device, and provides the present location information to the client terminal device. The client terminal device provides the client terminal device information to the location sensor, and receives the present location information from the location tracer so as to guide exhibition information corresponding to the present location to the client.
Abstract translation: 提供使用全景图像的展览指导服务的系统和方法，以通过位置跟踪传感器检查客户端的位置来提供对应于客户端的当前位置的详细信息。 位置跟踪传感器（2）接收客户终端设备（1）的信息，并将客户终端设备信息和自身信息一起发送。 位置跟踪器（3）跟踪客户终端设备的位置，并将该位置信息提供给客户终端设备。 客户终端装置向客户终端设备提供信息，并从位置跟踪器接收当前位置信息，以便将与当前位置对应的展览信息引导至客户端。
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公开(公告)号：KR1020080051041A
公开(公告)日：2008-06-10
申请号：KR1020070106876
申请日：2007-10-23
Applicant: 한국전자통신연구원 , 경희대학교 산학협력단
IPC: H04N21/236 , H04N21/235 , H04N13/00
CPC classification number: H04N21/23614 , H04N5/23238 , H04N21/23605 , H04N21/4343 , H04N21/4348
Abstract: A system and a method for transmitting and receiving the multi-view point panoramic contents in order to enhance the transmission efficiency are provided to define the multi-view point contents obtained from a camera as each object and to offer only the contents requested by a user at real time. An encoding member(311) encodes the multi-view point panoramic contents. A scene producing member(312) defines the encoded contents as each object descriptor, produces a scene binary format stream and an IOD(Initial Object Descriptor) and produces a scene by means of the corresponding image stream adjacent to the request view point from a user. A packetizer packets the image stream, object descriptor stream, and scene binary format stream from the scene producing member. A multiplexing member(314) multiplexes the packetized image stream, object descriptor stream and scene binary format stream with the IOD produced by the scene producing member and transmits the multiplexed data.
Abstract translation: 提供了用于发送和接收多视点全景内容以提高传输效率的系统和方法，以将从相机获得的多视点内容定义为每个对象，并且仅提供用户请求的内容 实时。 编码构件（311）对多视点全景内容进行编码。 场景产生构件（312）将编码内容定义为每个对象描述符，产生场景二进制格式流和IOD（初始对象描述符），并且通过与来自用户的请求视点相邻的相应图像流产生场景 。 分组器从场景制作成员分组图像流，对象描述符流和场景二进制格式流。 复用部件（314）将分组化图像流，对象描述符流和场景二进制格式流与由场景生成部件生成的IOD进行复用，并发送复用数据。
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公开(公告)号：KR1020080034766A
公开(公告)日：2008-04-22
申请号：KR1020070096054
申请日：2007-09-20
Applicant: 한국전자통신연구원
IPC: H04N21/233 , H04N21/236
CPC classification number: H04N21/233 , H04N21/236 , H04N21/434 , H04S3/008 , H04S2420/01
Abstract: An apparatus and a method for processing multi-channel audio signals are provided to enable active control for a user by controlling a multi channel audio signal according to channels using threshold through which human recognizes displacement of a sound source. A transmitting apparatus(100) comprises a multi channel audio encoder(102), a scene expression language encoder(104) and a multiplexer(106). The multi channel audio encoder generates multi channel audio stream by encoding the multi channel audio signal. The scene expression language encoder generates the scene expression language stream by encoding the multi channel audio control information. The multiplexer multiplexes the multi channel audio stream and the scene expression language stream. The multi channel audio control information includes data of controlling each channel signal individually. The data includes at least one of the number of the channels, the horizontal position of each channel signal, the vertical position of each channel signal, the horizontal transition speed of each channel signal, and the vertical transition speed of each channel signal. The horizontal and vertical transition speeds express the threshold by basic units to allow human to recognize the position of the sound source.
Abstract translation: 提供了一种用于处理多声道音频信号的装置和方法，以通过根据人们识别声源的位移的阈值通过控制多声道音频信号来使用户能够进行主动控制。 发送装置（100）包括多声道音频编码器（102），场景表达语言编码器（104）和多路复用器（106）。 多声道音频编码器通过对多声道音频信号进行编码来生成多声道音频流。 场景表达语言编码器通过对多声道音频控制信息进行编码来生成场景表达语言流。 复用器复用多声道音频流和场景表达语言流。 多声道音频控制信息包括分别控制每个声道信号的数据。 数据包括通道数量，每个通道信号的水平位置，每个通道信号的垂直位置，每个通道信号的水平转换速度以及每个通道信号的垂直转换速度中的至少一个。 水平和垂直转换速度通过基本单位表示阈值，以允许人们识别声源的位置。
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公开(公告)号：KR1020080026463A
公开(公告)日：2008-03-25
申请号：KR1020070036089
申请日：2007-04-12
Applicant: 한국전자통신연구원 , 광운대학교 산학협력단 , 세종대학교산학협력단
Inventor： 김대연 , 임성창 , 서정일 , 백승권 , 장인선 , 장대영 , 김재곤 , 문경애 , 홍진우 , 김진웅 , 오승준 , 안창범 , 정세윤 , 최해철 , 이영렬 , 심동규
IPC: H04N19/12 , H04N19/625
CPC classification number: H04N19/103 , H04N19/122 , H04N19/147 , H04N19/176 , H04N19/46 , H04N19/61
Abstract: An apparatus for encoding and decoding by using a converter alternatively according to the correlation of residual coefficients and a method thereof are provided to select a converter with a highest compression rate by perform an RD(Rate-Distortion) cost optimization using DCT(Discrete Cosine Transform) and DST(Discrete Sine Transform) in generating a quantized conversion coefficient through converters and quantizers after prediction between images or within the images in a predetermined size of block, thereby improving the compression rate of an image block. A first converter(31-34) performs the DCT(Discrete Cosine Transform) in a block unit, first quantization, first inverse quantization and IDCT(Interger-approximated Discrete Cosine Inverse Transform) of residual coefficients which are generated after performing prediction between images or within the images. A second converter(35-38) performs the DST(Discrete Sine Transform) in the block unit, second quantization, second inverse quantization, and IDST(Interger-approximated Discrete Sine Inverse Transform) of the residual coefficients. A selection unit(39) performs RD Cost(Rate-Distortion Cost) to select a converter with a high compression rate by block, and a display unit(40) displays converter information selected by the selection unit on a corresponding flag bit in a macro block unit.
Abstract translation: 提供了根据剩余系数的相关性或其方法替代地使用转换器进行编码和解码的装置，以通过使用DCT（离散余弦变换）进行RD（速率 - 失真）成本优化来选择具有最高压缩率的转换器 ）和DST（离散正弦变换）中，通过转换器和量化器在预测图像之后或在预定大小的块内的图像内生成量化转换系数，从而提高图像块的压缩率。 第一转换器（31-34）以块单位进行DCT（离散余弦变换），在执行图像之间的预测之后产生的剩余系数的第一量化，第一逆量化和IDCT（Interger近似离散余弦逆变换） 在图像内。 第二转换器（35-38）以剩余系数的块单位，第二量化，第二逆量化和IDST（Interger-Neared离散正弦逆变换）执行DST（离散正弦变换）。 选择单元（39）执行RD成本（速率失真成本），以块的方式选择具有高压缩率的转换器，并且显示单元（40）将由选择单元选择的转换器信息显示在宏中的相应标志位上 块单位。
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公开(公告)号：KR100554680B1
公开(公告)日：2006-02-24
申请号：KR1020030057682
申请日：2003-08-20
Applicant: 한국전자통신연구원
IPC: G10L19/018
CPC classification number: G10L19/018 , G10L19/032
Abstract: 본 발명은 크기 변화에 대해서 강인한 양자화 기반의 오디오 워터마킹 장치 및 방법에 관한 것이다.
본 발명의 부호기는 오디오 입력신호를 소정의 서브밴드로 분리하는 분리필터뱅크; 상기 오디오 입력신호를 입력받아 심리음향모델을 적용하여 마스크비를 제공하는 심리음향모듈; 상기 분리된 서브밴드중 상기 심리음향모듈의 마스크비에 따라 부호화 계수를 산출하고, 중간주파수대역에 워터마크를 삽입하고 부가정보를 제공하는 워터마크 엔코더; 및 상기 서브밴드신호들을 다시 합해 워터마크가 포함된 오디오신호를 출력하는 합성필터뱅크;를 포함하고, 본 발명의 복호기는 수신된 신호를 소정수의 서브밴드로 분리하는 분리필터뱅크; 수신된 부호화 계수와 워터마크가 삽입된 서브밴드로부터 EM 알고리즘에 따라 크기변화 비율을 추정하여 크기변화에 따른 복호기 양자화 크기(Δ
d )를 제공하는 EM 추정기; 상기 EM추정기의 복호기 양자화 크기를 고려하여 중간주파대역의 서브밴드로부터 워터마크를 추출하는 워터마크 디코더; 및 상기 워터마크 디코더의 출력을 합해 워터마크를 결정하는 통합 결정기;를 포함한다.
워터마킹, 양자화, 크기변화, EM 알고리즘, 서브밴드, 추정
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