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公开(公告)号：KR100453222B1
公开(公告)日：2004-10-15
申请号：KR1020010080123
申请日：2001-12-17
Applicant: 한국전자통신연구원
IPC: G06T7/20
CPC classification number: H04N5/145
Abstract: A method and an apparatus for estimating a camera motion include a frame picture memory unit for storing a plurality of moving picture frames, a buffer for sequentially extracting the frames and storing them, a block division unit for dividing each of the frames stored in the buffer into a plurality of blocks, a mean picture generation unit for generating horizontal and vertical mean pictures using the blocks, a horizontal and a vertical mean picture memory unit for storing the data of the horizontal and vertical mean pictures, a motion vector extraction unit for extracting motion vectors from the blocks using horizontal and vertical mean picture data, a motion vector memory unit for storing the data of the motion vectors, and a camera motion estimation unit for estimating a camera motion using the motion vector data.
Abstract translation: 用于估计相机运动的方法和设备包括：帧图像存储器单元，用于存储多个运动图像帧;缓冲器，用于顺序地提取帧并存储它们;块分割单元，用于将存储在缓冲器中的每个帧 分成多个块;平均图像生成单元，用于使用所述块生成水平和垂直平均图像;水平和垂直平均图像存储单元，用于存储水平和垂直平均图像的数据;运动矢量提取单元，用于提取 运动向量存储单元，用于存储运动向量的数据;以及相机运动估计单元，用于使用运动向量数据来估计相机运动。
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公开(公告)号：KR1020030049804A
公开(公告)日：2003-06-25
申请号：KR1020010080123
申请日：2001-12-17
Applicant: 한국전자통신연구원
IPC: G06T7/20
CPC classification number: H04N5/145
Abstract: PURPOSE: An apparatus and a method for discriminating camera motion are provided to improve the speed of discriminating the camera motion by combining motion vectors extracted from horizontal and vertical mean video. CONSTITUTION: A frame video memory(20) divides a plurality of moving picture frames(10) into each frame for storing the divided frames. A buffer(21) extracts and stores the frames stored in the frame video memory in order. A block dividing unit(22) segments one frame stored in the buffer into a plurality of blocks. A mean video generator(31) manufactures the mean video for extracting camera motion by using the segmented block. A horizontal mean video memory(32) and a vertical mean video memory stores horizontal mean video and vertical mean video. A motion vector extracting unit(441) extracts motion vectors existing in the block by using the data stored in the horizontal mean video memory and the vertical mean video memory. A motion vector memory(42) stores the motion vector data. A camera motion discriminator(51) discriminates camera motion by using the data of the motion vector memory.
Abstract translation: 目的：提供用于识别相机运动的装置和方法，通过组合从水平和垂直平均视频中提取的运动矢量来提高辨别相机运动的速度。 构成：帧视频存储器（20）将多个运动图像帧（10）划分成每个帧以存储分割的帧。 缓冲器（21）依次提取存储在帧视频存储器中的帧。 块分割单元（22）将存储在缓冲器中的一帧分割成多个块。 平均视频发生器（31）通过使用分段块制造用于提取相机运动的平均视频。 水平平均视频存储器（32）和垂直平均视频存储器存储水平平均视频和垂直平均视频。 运动矢量提取单元（441）通过使用存储在水平平均视频存储器和垂直平均视频存储器中的数据来提取存在于块中的运动矢量。 运动矢量存储器（42）存储运动矢量数据。 相机运动鉴别器（51）通过使用运动矢量存储器的数据来识别相机运动。
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143.发明公开
公开(公告)号：KR1020030049642A
公开(公告)日：2003-06-25
申请号：KR1020010079920
申请日：2001-12-17
Applicant: 한국전자통신연구원
CPC classification number: H04N19/597 , H04N13/111 , H04N13/296
Abstract: PURPOSE: A method for encoding and decoding camera information for compositing stereoscopic real moving picture information and a computer graphic image is provided to store location moving information and camera viewpoint change information together with contents, thereby easily and accurately combining the contents with the computer graphic image. CONSTITUTION: Camera information(310) of the corresponding frame of an image currently being photographed is sensed and inputted. A difference in each component between camera information of the current frame and camera information of the previous frame is calculated for obtaining camera change information(330) between the frames. The camera change information is encoded for compressively storing image contents and the encoded camera information. The encoded camera information if the corresponding frame is updated to the camera information of the previous camera information.
Abstract translation: 目的：提供用于编码和解码用于合成立体真实运动图像信息和计算机图形图像的相机信息的方法，以将内容与内容一起存储位置移动信息和摄像机视点改变信息，从而容易且精确地将内容与计算机图形图像组合 。 构成：感测并输入当前拍摄的图像的相应帧的相机信息（310）。 计算当前帧的摄像机信息与前一帧的照相机信息之间的每个分量的差异，以获得帧之间的相机改变信息（330）。 编码相机改变信息以压缩地存储图像内容和编码的相机信息。 如果对应的帧被更新为先前相机信息的相机信息，则编码的相机信息。
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公开(公告)号：KR1020020073052A
公开(公告)日：2002-09-19
申请号：KR1020010013209
申请日：2001-03-14
Applicant: 한국전자통신연구원
IPC: G06T1/00
CPC classification number: G06F17/30262 , Y10S707/915 , Y10S707/99933 , Y10S707/99937 , Y10S707/99942 , Y10S707/99943
Abstract: PURPOSE: Image DB browsing and sorting methods on the basis of image feeling is provided to carry out the browsing more effectively and more rapidly by carrying out the sorting on the basis of the contents of the images rather than external characteristics. CONSTITUTION: A method for sorting image DB on the basis of image feeling includes the steps of measuring the number of edge pixels of an object in still images for measuring feeling degree of the still images of which the edge pixel number is evaluated, and sorting the measured feeling degree measurement values according to a sorting order, wherein the feeling degree measurement is carried out by the steps of n-dimensional Wavelet Transform via a high pass filter to obtain edge information on the object in the still images(S310), and measuring the number of the edge pixels in the still images after removing noise from the still images by the Sobel operator(S320,S330).
Abstract translation: 目的：提供基于图像感觉的图像数据库浏览和排序方法，通过基于图像内容进行排序，而不是外部特征，更有效，更快速地进行浏览。 构成：基于图像感觉对图像DB进行分类的方法包括以下步骤：测量用于测量边缘像素数评估的静止图像的感觉度的静止图像中的对象的边缘像素的数量，并且对 根据排序顺序测量感觉度测量值，其中感觉度测量通过高通滤波器的n维小波变换步骤进行，以获得关于静止图像中的对象的边缘信息（S310），并测量 在通过Sobel算子去除静止图像中的噪声之后静止图像中的边缘像素的数量（S320，S330）。
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公开(公告)号：KR1020020053572A
公开(公告)日：2002-07-05
申请号：KR1020000083236
申请日：2000-12-27
Applicant: 한국전자통신연구원 , 한국과학기술정보연구원
IPC: H04N7/12
CPC classification number: H04N1/3873
Abstract: PURPOSE: A device and a method for partly transmitting images on the network are provided to transmit only data necessary for display in a client, without transmitting all image data, so as to secure QoS(Quality of Service). CONSTITUTION: In a server(20), an image database(24) stores a partly accessible image file. An offset and part access information database(23) stores information necessary for generating a part area image file. A server communication processor(21) receives a request of the part area image file from a client(10) and transmits the requested part area image file to the client. A JPEG(Joint Photographic Experts Group) part access processor(22) extracts corresponding offset and part access information from the offset and part access information database to access the corresponding file stored in the image database(24) and generate a part area image, and delivers the generated part area image to the server communication processor. In the client, a scroll controller(12) interprets scroll information inputted by a user to control a command of displaying a new area. A display controller(11) requests the part area image to display the new area, and controls the part area image of the new area to be displayed. A client communication processor(14) transmits the part area image request from the display controller to the server communication processor, and receives the part area image from the server communication processor. And a JPEG decoder(13) decodes the part area image from the client communication processor to deliver the decoded part area image to the display controller.
Abstract translation: 目的：提供一种用于在网络上部分传输图像的设备和方法，以仅传送在客户机中显示所需的数据，而不发送所有图像数据，以便确保QoS（服务质量）。 构成：在服务器（20）中，图像数据库（24）存储部分可访问的图像文件。 偏移和部分访问信息数据库（23）存储用于生成部分区域图像文件所需的信息。 服务器通信处理器（21）从客户机（10）接收部分区域图像文件的请求，并将所请求的区域图像文件发送给客户端。 JPEG（联合摄影专家组）部分存取处理器（22）从偏移和部分存取信息数据库中提取相应的偏移和部分存取信息，以访问存储在图像数据库（24）中的相应文件，并生成部分区域图像， 将生成的部分区域图像传送到服务器通信处理器。 在客户机中，滚动控制器（12）解释由用户输入的滚动信息来控制显示新区域的命令。 显示控制器（11）请求部分区域图像显示新区域，并且控制要显示的新区域的部分区域图像。 客户端通信处理器（14）将部分区域图像请求从显示控制器发送到服务器通信处理器，并从服务器通信处理器接收部分区域图像。 并且JPEG解码器（13）从客户端通信处理器解码部分区域图像，以将解码的部分区域图像传送到显示控制器。
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Patent Agency Ranking
公开(公告)号：KR100249826B1
公开(公告)日：2000-03-15
申请号：KR1019970065070
申请日：1997-12-01
Applicant: 한국전자통신연구원
IPC: H04N19/142 , G06F17/30
Abstract: 본 발명은 디지털 동영상 데이터를 그 내용에 기반하여 자동으로 분할, 구조화하고, 분할된 단위 동영상으로부터 대표프레임을 선정함으로써 효율적이고 유연한 동영상의 검색 및 브라우징 서비스를 제공할 수 있도록 하는 디지털 동영상 데이터 자동분할장치 및 그 방법에 관한 것이다.
이와같은 본 발명은 디지털 동영상 데이터에 나타나는 장면전환을 종래의 발명들에 비하여 보다 정확하게 검출할 수 있을 뿐 아니라, 페이드 아웃, 페이드 인 등의 점진적인 장면전환점도 검출이 가능하여 보다 정확한 동영상의 구조화가 가능하다. 또한 내용적으로 의미있는 대표프레임의 선정이 가능하여 검색 및 브라우징 서비스의 질을 향상 시킬 수 있다.-
公开(公告)号：KR1020210068374A
公开(公告)日：2021-06-09
申请号：KR1020210071735
申请日：2021-06-02
Applicant: 한국전자통신연구원
IPC: H04N21/262 , H04N21/2343 , H04N19/593
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公开(公告)号：KR1020210020984A
公开(公告)日：2021-02-24
申请号：KR1020210021568
申请日：2021-02-18
Applicant: 한국전자통신연구원
IPC: H04N19/50 , H04N19/59 , H04N19/107 , H04N19/44
Abstract: 영상부호화방법및 장치가제공된다. 영상의화면간 예측을수행을위하여컴퓨터에의해실행되는프로그램을기록하는기록매체에있어서, 상기프로그램은, 참조블록식별자를기반으로, 이전에복원된하나의복원블록을복호화대상블록의참조블록으로결정하는단계, 상기참조블록의움직임정보를기반으로상기복호화대상블록에적용되는움직임정보를결정하는단계, 및상기결정된움직임정보를기반으로상기복호화대상블록에대한복호화를수행하는단계를포함하되, 상기참조블록식별자는상기참조블록으로사용될복원블록을지시할수 있다.
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