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公开(公告)号：KR1020070061118A
公开(公告)日：2007-06-13
申请号：KR1020060048234
申请日：2006-05-29
Applicant: 한국전자통신연구원
CPC classification number: G06Q50/2057 , G09B5/06
Abstract: A method for promoting interaction among learners in real-time collaborative learning using a chatting tool is provided to promote the interaction among the learners in the real-time collaborative learning by analyzing an interaction index of the learns and a learning group through collaboration calculation whenever real-time collaboration is generated among the learners, and informing the learners of the analyzed interaction indexes. The real-time collaboration index among the learners is updated by confirmation among the learners using the chatting tool during the collaborative learning. A transmitting/receiving index is updated whenever the learner transceives a chatting message. A collaboration promotion guide message is sent according to a deviation of the real-time collaboration index or the transceiving index(304). An individual transmitting index is calculated by a ratio between individual message transmitting count and the number of all learners belonging to the same group. An individual receiving index is calculated by the ratio between individual message receiving count and the number of all learners belonging to the same group.
Abstract translation: 提供了一种利用聊天工具促进学习者在实时协作学习中的互动的方法，通过在实时协作学习中通过协作计算分析学习和学习组的交互指数，促进实时协作学习中的交互 在学习者之间产生时间协作，并向学习者通报分析的交互指数。 通过在协作学习期间使用聊天工具的学习者之间的确认来更新学习者之间的实时协作索引。 每当学习者收听聊天消息时，就会更新发送/接收索引。 根据实时协作索引或收发指标的偏差发送协作推广指南消息（304）。 单个发送索引通过个别消息发送计数与属于同一组的所有学习者的数量之间的比率来计算。 个人接收索引是通过个人消息接收计数与属于同一组的所有学习者的数量之间的比率来计算的。
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公开(公告)号：KR1020010076777A
公开(公告)日：2001-08-16
申请号：KR1020000004132
申请日：2000-01-28
Applicant: 한국전자통신연구원
IPC: H04N5/92
Abstract: PURPOSE: A random access device of an MPEG-2 decoder for an editor and a method thereof are provided to restore an image at a wanted location, and to restore an appointed exact location from an MPGE-2 bit stream by getting an exact temporal frame location. CONSTITUTION: A packet is read from a bit stream of an MPEG-2 bit stream(S101). If there is no sequence or GOP(Group Of Picture) information, it is decided whether there is a start of an image frame in the bit stream or not(S103). And, if there is the sequence or the GOP information, a location of the sequence or the GOP information is stored at a storage device, and especially, in the case that an encoding parameter is varied, the variation information of the encoding parameter is stored. And, if there is the start of the image frame in the bit stream, a location of the start is stored, and especially, in the case of a P frame or a B frame having a correlation with some other image, a location of some other image frame is stored by using the correlation information(S104). Next, it is decided whether an independent encoding work is possible or not(S105). If the independent encoding work is possible, necessary correlation information is extracted from the stored data, and the necessary correlation information is stored again.
Abstract translation: 目的：提供用于编辑器的MPEG-2解码器及其方法的随机存取装置，用于恢复所需位置的图像，并通过获得准确的时间帧来从MPGE-2比特流恢复指定的确切位置 位置。 构成：从MPEG-2比特流的比特流读取分组（S101）。 如果没有序列或GOP（图像组）信息，则确定在比特流中是否存在图像帧的开始（S103）。 并且，如果存在序列或GOP信息，则将序列或GOP信息的位置存储在存储装置中，特别是在编码参数变化的情况下，存储编码参数的变化信息 。 而且，如果在比特流中存在图像帧的开始，则存储起始位置，特别是在具有与其他图像相关的P帧或B帧的情况下，某些位置 通过使用相关信息来存储其他图像帧（S104）。 接下来，判定是否可以进行独立的编码工作（S105）。 如果独立编码工作成为可能，则从所存储的数据中提取必要的相关信息，并且再次存储所需的相关信息。
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公开(公告)号：KR1020000038978A
公开(公告)日：2000-07-05
申请号：KR1019980054166
申请日：1998-12-10
Applicant: 한국전자통신연구원
CPC classification number: H04N19/625 , H04N5/262 , H04N19/176
Abstract: PURPOSE: A method for processing a special effect of a compressed picture is provided to reduce an amount of calculation and the number of blocks for calculating a motion compensation(MC) when a visual special effect is added to a compressed moving picture, by processing the visual special effect in a discrete cosine transform(DCT) domain or in a DCT-compressed domain, and processing it after a partial decoding. CONSTITUTION: An input picture is divided to small blocks which are subjected to a motion compensation and converted to DCT coefficients by a DCT part(3) in an encoder. A motion estimation circuit(1) searches an optimal reference block and outputs a motion vector. The DCT coefficients are quantized by a quantization part(5). The output of the quantization part(5) is subjected to a run length coding in order to minimize the duplication of zeros, and then to a variable length coding in a part(7) which outputs an estimated offset. The DCT domain and DCT-compressed domain denote the quantized DCT coefficients which can be obtained from an inverse quantization part(9) in a decoder.
Abstract translation: 目的：提供一种用于处理压缩图像的特殊效果的方法，以便当将视觉特效添加到压缩运动图像时，通过处理压缩图像的处理来减少计算量和用于计算运动补偿（MC）的块数 在离散余弦变换（DCT）域或DCT压缩域中的视觉特效，并在部分解码之后对其进行处理。 构成：输入图像被划分为经过运动补偿的小块，并且由编码器中的DCT部分（3）转换成DCT系数。 运动估计电路（1）搜索最佳参考块并输出运动矢量。 DCT系数由量化部（5）量化。 对量化部分（5）的输出进行游程长度编码，以便最小化零的复制，然后在输出估计偏移的部分（7）中进行可变长度编码。 DCT域和DCT压缩域表示可以从解码器中的逆量化部分（9）获得的量化DCT系数。
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公开(公告)号：KR1019960042426A
公开(公告)日：1996-12-21
申请号：KR1019950011712
申请日：1995-05-12
Applicant: 한국전자통신연구원
IPC: G06F17/30
Abstract: 본 발명은 컴퓨터의 데이타 자료로 형성되어진 사전류에 검색방식에 관한 것으로 특히, 입력되는 탐색어에 존재하는 특수문자나 스페이스 등의 데이타를 삭제하고 문자나 숫자로만 형성된 표준 형태의 스트링 데이타로 변환하는 제1과정과, 상기 과정에서 변환되어진 스트링 데이타를 미리 설정되어 있는 표준 형태의 스트링과 비교하여 대응되는 데이타가 있는 가를 판단하는 제2과정과, 상기 제2과정에서 대응되는 데이타가 있다고 판단되는 경우 상기 제1과정에서 변환되어진 스트링데이타를 대응하는 표준 형태의 스트링으로 변환하는 제3과정과, 상기 제3과정을 통하여 발생되는 표준 형태의 스트링 또는 상기 제1과정을 통하여 발생되는 스트링 데이타중 어느 하나를 입력받아 미리 설정되어 있는 표제어와 비교하여 대응되는 데이타가 있는 가를 판단하는 제4과정과, 상기 제4과정에서 대응되는 데이타가 있다고 판단되는 경우 대응되는 표제어의 주소를 발생시키는 제5과정 및 상기 제4과정에서 대응되는 데이타가 없다고 판단되는 경우 가장 근접하다고 판단되는 다수의 표제어에 대한 주소를 발생시키는 제6과정을 포함하는 것을 특징으로 하는 표제어 탐색방법을 제공하여 종래단순 스트링 방식으로 인하여 사용자가 다양한 표제어의 형태를 정확하게 맞추지 않으면 정확한 검색이 어려웠던 문제점을 해소하는 효과가 있다.
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