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公开(公告)号：KR100767489B1
公开(公告)日：2007-10-16
申请号：KR1020000013816
申请日：2000-03-18
Applicant: 주식회사 팬택앤큐리텔 , 한국전자통신연구원
IPC: H04N19/94
CPC classification number: G06F17/30247 , G06F17/30017 , G06K9/6261
Abstract: The present invention relates to an apparatus and a method for vector descriptor representation and multimedia data retrieval, which can quantize a plurality of feature values described by a vector descriptor respectively, represent the quantized feature values in the form of bit or orthogonally transform the quantized bector feature values, and rearrange the feature values represented in the form of bit from the highest bit to the lowest bit or rearrange the transformed coefficient from low frequency to high frequency to represent the vector descriptor hierarchically. Moreover, when retrieving multimedia data, the present invention can code in variable length and store the rearranged feature values and the number of feature values which are input, inversely code only the feature values corresponding to the number of the feature values of the stored feature values, inversely arrange the inversely coded feature values to be restored to original feature values, inversely quantize the restored feature values, and compare the feature values restored by the inverse quantization with the feature values stored in a multimedia database to retrieve multimedia data.
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公开(公告)号：KR1020070011149A
公开(公告)日：2007-01-24
申请号：KR1020060067094
申请日：2006-07-18
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
IPC: H04N19/137 , H04N19/51
CPC classification number: H04N19/59 , H04N19/174 , H04N19/61 , H04N19/65 , H04N19/70
Abstract: A redundant slice coding method based on PD(Polyphase Down-sampling) and a CODEC using the method are provided to adaptively vary the quantity of transmitted DCT(Discrete Cosine Transform) coefficients using the PD based redundant slice coding method to improve error resilience of scalable video coding and coding efficiency. A PD based redundant slice encoder includes a PD coding unit(110), a quantizer(120), and a reference block generator(130). The PD coding unit polyphase-down-samples a residual block corresponding to a current block and a predicted block to reconstruct the residual block into four regions. The quantizer transforms and quantizes at least one of the reconstructed regions. The reference block generator generates a reference picture based on a value obtained by inversely transforming and inversely quantizing the quantized region and then inversely polyphase down-sampling the region.
Abstract translation: 提供了基于PD（多相下采样）和使用该方法的CODEC的冗余片编码方法，以使用基于PD的冗余片编码方法自适应地改变发射DCT（离散余弦变换）系数的数量，以提高可缩放 视频编码和编码效率。 基于PD的冗余片编码器包括PD编码单元（110），量化器（120）和参考块发生器（130）。 PD编码单元对与当前块和预测块相对应的残差块进行多相降样采样，以将残余块重建为四个区域。 量化器对至少一个重建区域进行变换和量化。 参考块生成器基于通过对量化区域进行逆变换和逆量化获得的值并且然后对该区域进行反向多相下采样来生成参考图像。
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公开(公告)号：KR1020040102093A
公开(公告)日：2004-12-03
申请号：KR1020047016429
申请日：2003-04-26
Applicant: 한국전자통신연구원
CPC classification number: G06F3/165 , H04L29/06027 , H04L65/604 , H04L67/306 , H04N21/2335 , H04N21/25808 , H04N21/25891 , H04N21/6377 , H04N21/658 , H04N21/6582
Abstract: PURPOSE: A device and a method for adapting audio signals to user's features are provided to adapt audio contents to a user environment by using information previously describing a use environment of a user terminal consuming the audio contents. CONSTITUTION: An audio data source tool(101) receives audio data generated from a multimedia source. An audio adaptation tool(103) receives the audio data from the audio data source tool. An audio use environment information managing tool(107) adapts the audio data to the user environment by using the information previously describing the use environment, and previously describes/manages the use environment information by collecting the information from a user, the user terminal, and an environment. An audio data output tool(105) outputs the audio data adapted by the audio adaptation tool.
Abstract translation: 目的：通过使用先前描述消费音频内容的用户终端的使用环境的信息，提供用于使音频信号适应用户特征的设备和方法以将音频内容适配到用户环境。 构成：音频数据源工具（101）接收从多媒体源产生的音频数据。 音频适配工具（103）从音频数据源工具接收音频数据。 音频使用环境信息管理工具（107）通过使用先前描述使用环境的信息来将音频数据适配到用户环境，并且通过收集来自用户，用户终端和/或用户的信息来先前描述/管理使用环境信息 一个环境。 音频数据输出工具（105）输出由音频适配工具适应的音频数据。
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公开(公告)号：KR1020080093386A
公开(公告)日：2008-10-21
申请号：KR1020080034965
申请日：2008-04-16
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
IPC: H04N19/186 , H04N11/04
CPC classification number: H04N19/59 , H04N19/186 , H04N19/33
Abstract: A method and an apparatus for encoding and decoding color video scalability are provided to prevent unnecessary data amount from increasing when storing or transmitting encoded information, improve encoding efficiency by not doubly encoding the same information as already encoded information, prevent the same information as already decoded information from being doubly decoded and improve decoding efficiency. A color video scalability encoding method includes encoding a color image block of an improvement stratum by using lower stratum information. The encoding generates a color sign block pattern value according to quantization coefficient values of a residual color image block by using the lower stratum information. A color video scalability decoding method includes determining presence/absence of an improvement stratum having a different color format from that of a lower stratum in a received bit stream, and decoding a color image block of the improvement stratum by using the lower stratum information.
Abstract translation: 提供了一种用于编码和解码彩色视频可伸缩性的方法和装置，以防止在存储或发送编码信息时不必要的数据量增加，通过不对已编码信息的相同信息进行双重编码来提高编码效率，防止已经解码的相同信息 信息被双重解码，提高解码效率。 彩色视频可缩放编码方法包括通过使用较低层信息对改进层的彩色图像块进行编码。 编码通过使用较低层信息根据残差彩色图像块的量化系数值生成颜色符号块图案值。 彩色视频可伸缩性解码方法包括：在接收的比特流中确定具有与下层的颜色格式不同的改进层的存在/不存在，以及通过使用较低层信息来对改进层的彩色图像块进行解码。
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公开(公告)号：KR1020070074503A
公开(公告)日：2007-07-12
申请号：KR1020070002637
申请日：2007-01-09
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
IPC: H04N19/174 , H04N19/30
CPC classification number: H04N19/89 , H04N19/174 , H04N19/65 , H04N19/70
Abstract: A NAL(Network Abstraction Layer) unit type display method, a bit stream transmission apparatus according to the same, and a redundant slice coding apparatus are provided to indicate that a current NAL unit is a redundant coded picture by using No. 19 of a NAL unit type when an auxiliary coded picture is not used. A header parsing unit(311) includes a NAL unit header in which a NAL unit type indicating a redundant coded picture is recorded, parses the NAL unit header of a coded bit stream, and judges whether a NAL unit is a redundant coded picture. When the NAL unit is the redundant coded picture as a result of the header parsing unit(311), a transmission determining unit(312) determines whether to transmit the NAL unit according to a state of a network in which the NAL unit is transmitted.
Abstract translation: 提供NAL（网络抽象层）单元类型显示方法，根据它的位流发送装置和冗余片编码装置，以通过使用NAL的第19号来指示当前NAL单元是冗余编码图 不使用辅助编码图像时的单位类型。 标题解析单元（311）包括NAL单元报头，其中记录指示冗余编码图像的NAL单元类型，解析编码比特流的NAL单元报头，并且判断NAL单元是否是冗余编码图像。 作为标题解析单元（311）的结果，当NAL单元是冗余编码图像时，发送确定单元（312）根据发送NAL单元的网络的状态确定是否发送NAL单元。
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Patent Agency Ranking
公开(公告)号：KR1020040048853A
公开(公告)日：2004-06-10
申请号：KR1020030087191
申请日：2003-12-03
Applicant: 한국전자통신연구원
IPC: H04N21/2662
CPC classification number: G06T11/00 , G06F3/14 , G09G2370/027 , H04N7/17318 , H04N21/2343 , H04N21/25833 , H04N21/25891 , H04N21/4402 , H04N21/4532
Abstract: PURPOSE: A system and method for adaptively converting video contents are provided to adaptively convert the video contents using usage environment information including user terminal characteristic and user's taste characteristic. CONSTITUTION: A system(100) for adaptively converting video contents includes an adaptive image converter(103) and a usage environment information manager. The adaptive image converter receives video data from video data collector(101) and adaptively converts the video data using information including user terminal characteristic and user's taste characteristic, described by the usage environment information manager. The video data collector collects video data generated from a multimedia source. The usage environment information manager collect information from a user terminal, describes usage environment information and manages the information. A video data output unit(105) outputs the adaptively converted video data.
Abstract translation: 目的：提供一种用于自适应转换视频内容的系统和方法，使用包括用户终端特征和用户口味特征在内的使用环境信息自适应地转换视频内容。 构成：用于自适应地转换视频内容的系统（100）包括自适应图像转换器（103）和使用环境信息管理器。 自适应图像转换器从视频数据采集器（101）接收视频数据，并使用由使用环境信息管理器描述的包括用户终端特征和用户的品味特征的信息自适应地转换视频数据。 视频数据收集器收集从多媒体源生成的视频数据。 使用环境信息管理器从用户终端收集信息，描述使用环境信息并管理信息。 视频数据输出单元（105）输出自适应转换的视频数据。
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公开(公告)号：KR1020010091780A
公开(公告)日：2001-10-23
申请号：KR1020000013816
申请日：2000-03-18
Applicant: 주식회사 팬택앤큐리텔 , 한국전자통신연구원
IPC: H04N19/94
CPC classification number: G06F17/30247 , G06F17/30017 , G06K9/6261
Abstract: PURPOSE: An apparatus and a method for expressing a vector expert and an apparatus and a method for searching multimedia data using the same are provided to search multimedia data by expressing and storing vector experts of multimedia data hierarchically. CONSTITUTION: An orthogonal transform portion(100) performs an orthogonal transform process for each feature vector composing vector experts and expresses the feature vectors in an order of a low frequency feature to a high frequency feature. A quantization portion(101) quantizes the feature values of the orthogonal transform portion(100). A variable length coding portion(102) performs a variable length coding process for the quantized feature vector and the number of inputted feature values and stores the coded feature values in a feature value storage portion(103).
Abstract translation: 目的：提供一种用于表达向量专家的装置和方法，以及用于搜索使用其的多媒体数据的装置和方法，以通过分级地表达和存储多媒体数据的矢量专家来搜索多媒体数据。 构成：正交变换部（100）对各特征向量构成矢量专家进行正交变换处理，并以低频特征的顺序向高频特征表现特征向量。 量化部分（101）量化正交变换部分（100）的特征值。 可变长度编码部分（102）对量化的特征向量和输入的特征值的数量执行可变长度编码处理，并将编码的特征值存储在特征值存储部分（103）中。
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公开(公告)号：KR101407571B1
公开(公告)日：2014-06-16
申请号：KR1020070030009
申请日：2007-03-27
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
IPC: H04N19/30
CPC classification number: H04N21/4345 , H04N19/30 , H04N19/70
Abstract: 본 발명은 스위칭 픽쳐를 이용한 동영상 비트스트림 부호화 및 재생 방법 및 장치에 관한 것으로, 기본계층 비트스트림 및 향상계층 비트스트림을 포함하는 동영상 비트스트림 부호화 장치에 있어서, 기본계층 비트스트림 중 임의의 기본계층 픽쳐의 재생 중에 향상계층 비트스트림 중 상기 기본계층 픽쳐와 연속적으로 재생할 수 있도록 하는 영상을 나타내는 향상계층 픽쳐를 기부호화된 기본계층 픽쳐의 복호화한 영상을 참조영상으로 인터레이어 예측하거나 기부호화된 향상계층 픽쳐의 복호화한 다른 영상을 참조영상으로 움직임 예측하여, 비교체 스위칭 픽쳐로 부호화하고, 상기 비교체 스위칭 픽쳐를 입력 받아 상기 기부호화된 기본계층 픽쳐의 복호화한 영상을 참조영상으로 하여 인터레이어 예측하여 상기 비교체 스위칭 픽쳐와 동일한 영� �을 나타내는 교체 스위칭 픽쳐를 부호화하는 것을 특징으로 하는 동영상 비트스트림 부호화장치로 구성되어, 랜덤 억세스, 비트스트림 교체, 패스트 포워드, 패스트 백워드의 기능을 신축 동영상 비트스트림에 제공한다.
스케일러블 비디오 코딩(SVC), 비교체, 교체, 스위칭 픽쳐-
公开(公告)号：KR100919884B1
公开(公告)日：2009-09-30
申请号：KR1020047016429
申请日：2003-04-26
Applicant: 한국전자통신연구원
CPC classification number: G06F3/165 , H04L29/06027 , H04L65/604 , H04L67/306 , H04N21/2335 , H04N21/25808 , H04N21/25891 , H04N21/6377 , H04N21/658 , H04N21/6582
Abstract: 본 발명은 오디오 신호의 적응 변환 장치 및 그 방법을 제공하며, 상기 장치는 오디오 신호를 사용자 특성, 단말 용량 및 사용자의 자연 환경을 포함하는 사용환경에 사용자의 요구에 따라 적응적으로 변환시킴으로써, 사용자에게 높은 질의 디지털 컨텐츠를 효율적으로 제공함.
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公开(公告)号：KR100889745B1
公开(公告)日：2009-03-24
申请号：KR1020070002637
申请日：2007-01-09
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
IPC: H04N19/174 , H04N19/30
CPC classification number: H04N19/89 , H04N19/174 , H04N19/65 , H04N19/70
Abstract: 본 발명은 날 유닛 타입 표시방법 및 그에 따른 비트스트림 전달장치 및 리던던트 슬라이스 부호화 장치에 관한 것으로, H.264, SVC(Scalable Video Cdoing), 혹은 MVC(Multi-view coding) 에서 데이터 분할을 사용하지 않고 전송하고자 하는 날 유닛(NAL unit)이 리던던트 코디드 픽쳐(redundant coded picture)인 경우 날 유닛 타입(NAL unit type)이 리던던트 코디드 픽쳐(redundant coded picture)를 가리키도록 표시하고, 리던던트 코디드 픽쳐(redundant coded picture)를 나타내는 날 유닛 타입이 기록된 날 유닛 헤더를 포함하여 코딩된 비트스트림의 상기 날 유닛 헤더를 파싱하여 상기 날 유닛이 리던던트 코디드 픽쳐(redundant coded picture)인지 판단하는 헤더 파싱부 및 상기 헤더 파싱부에서 판단한 결과 상기 날 유닛이 리던던트 코디드 픽쳐(redundant coded picture)인 경우 상기 날 유닛이 전송되는 네트워크 망의 상태에 따라 상기 날 유닛의 전송여부를 결정하는 전송 결정부로 구성되어, 리던던트 부호화된 슬라이스를 슬라이스 헤더의 파싱 없이 쉽고 간단하게 전송 혹은 복호시 제외할 수 있다.
리던던트 슬라이스 코딩, 날 유닛, 날 유닛 타입
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