利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

27 条记录 (耗时 0.025 秒)

    Image coding method and apparatus and image decoding method and apparatus
    1.
    发明授权
    Image coding method and apparatus and image decoding method and apparatus 有权

    公开(公告)号：US07221409B2

    公开(公告)日：2007-05-22

    申请号：US10093062

    申请日：2002-03-08

    申请人： Kozo Akiyoshi ,  Nobuo Akiyoshi

    发明人： Kozo Akiyoshi ,  Nobuo Akiyoshi

    IPC分类号： H04N5/14

    CPC分类号： H04N19/87 ,  H04N5/147 ,  H04N19/142 ,  H04N19/179 ,  H04N19/537

    摘要： An image coding and decoding technology for compressing motion pictures which makes use of critical point filter technology and that includes detection of scene changes to provide more accurate decoding. An image input unit acquires key frames. A scene change detector detects when there is a scene change between key frames, and notifies a matching processor to that effect. The matching processor then skips generation of correspondence data between those key frames. A stream generator generates a coded data stream in a manner that key frames and associated correspondence data are incorporated when there is no scene change, while key frames and associated correspondence disable data are incorporated when there is a scene change. This allows a decoder to more accurately decode the data stream and take account of scene changes.

    Image coding method and apparatus and image decoding method and apparatus
    2.
    发明授权
    Image coding method and apparatus and image decoding method and apparatus 有权

    公开(公告)号：US07212572B2

    公开(公告)日：2007-05-01

    申请号：US10200157

    申请日：2002-07-23

    申请人： Kozo Akiyoshi ,  Nobuo Akiyoshi

    发明人： Kozo Akiyoshi ,  Nobuo Akiyoshi

    IPC分类号： H04N7/12 ,  H04B1/66

    CPC分类号： H04N19/577 ,  H04N19/186 ,  H04N19/33 ,  H04N19/51 ,  H04N19/523 ,  H04N19/53 ,  H04N19/54

    摘要： An image processing method and apparatus for encoding and decoding image data in which the coding and decoding method may be simplified based on factors such as processing speed requirements. In encoding, an image input unit receives a first image and a second image (key frames). A matching processor begins performing a multiresolutional analysis using pixel-by-pixel matching between the images but, due to predetermined factors or settings, either discontinues the analysis or switches to a simplified method of analysis prior to the final resolution level. If the analysis is discontinued during encoding (i.e. at the encoding side), the analysis may be completed at the decoding side prior to conducting the decoding and the decoding side may be arranged accordingly.

    Image-effect method and image interpolation method
    3.
    发明授权
    Image-effect method and image interpolation method 失效

    公开(公告)号：US07079710B2

    公开(公告)日：2006-07-18

    申请号：US10040438

    申请日：2002-01-09

    申请人： Hiroki Nagashima ,  Kozo Akiyoshi ,  Nobuo Akiyoshi

    发明人： Hiroki Nagashima ,  Kozo Akiyoshi ,  Nobuo Akiyoshi

    IPC分类号： G06K9/32

    CPC分类号： H04N19/54 ,  G06K9/4609 ,  G06K9/6206

    摘要： An image input unit acquires a first image and a second image. A matching processor computes a pixel matching between the images so that corresponding points are obtained on the second image with respect to lattice points of a mesh defined on the first image. A result thereof is recorded as a corresponding point file. An intermediate image generator generates an intermediate image of the first image and the second image based on the corresponding point file. Since the corresponding point file is composed of corresponding lattice points alone rather than corresponding pixels or the like, the amount of data is relatively small, and thereby allows efficient implementation of and application to various image effects, motion picture compression, on-line commodity presentation, and mobile applications.

    Method and apparatus for generating pseudo-three-dimensional images
    4.
    发明授权
    Method and apparatus for generating pseudo-three-dimensional images 失效
    用于产生伪三维图像的方法和装置

    公开(公告)号：US07009606B2

    公开(公告)日：2006-03-07

    申请号：US10386547

    申请日：2003-03-13

    申请人： Masaki Hiraga ,  Kensuke Habuka

    发明人： Masaki Hiraga ,  Kensuke Habuka

    IPC分类号： G06T15/00

    CPC分类号： G06T13/00 ,  G06T15/005 ,  G06T2210/44

    摘要： Provided is a pseudo-three-dimensional image generating technique by which a further increased large amount of CG images is generated and drawn. A pseudo-three-dimensional image generating apparatus includes a first processing unit and a second processing unit. When moving pictures that contain a three-dimensional object model are generated, the first processing unit generates key frames, selected at certain or varied intervals, of the moving pictures by CG. The second processing unit interpolates these key frames by an image processing, so as to generate intermediate frames. The timing of the key frames and intermediate frames are adjusted in a buffer memory and are then outputted to a display apparatus.

    摘要翻译： 提供了一种伪三维图像生成技术，通过该技术生成和绘制进一步增加的大量CG图像。 伪三维图像生成装置包括第一处理单元和第二处理单元。 当生成包含三维对象模型的图像时，第一处理单元通过CG生成以某些或多个间隔选择的运动图像的关键帧。 第二处理单元通过图像处理内插这些关键帧，以产生中间帧。 关键帧和中间帧的定时在缓冲存储器中进行调整，然后输出到显示装置。

    Image interpolation method and apparatus therefor
    7.
    发明授权
    Image interpolation method and apparatus therefor 有权
    图像插值方法及其装置

    公开(公告)号：US07298929B2

    公开(公告)日：2007-11-20

    申请号：US11237901

    申请日：2005-09-29

    申请人： Kozo Akiyoshi ,  Nobuo Akiyoshi ,  Yoshihisa Shinagawa

    发明人： Kozo Akiyoshi ,  Nobuo Akiyoshi ,  Yoshihisa Shinagawa

    IPC分类号： G06K9/32

    CPC分类号： G06T3/4007 ,  G06T7/246

    摘要： An image interpolation method and apparatus by which to quickly generate and display motion pictures using a small amount of data. An image input unit inputs a first image and a second image. A matching processor computes a pixel matching between those images so that a corresponding point is obtained on the second image with respect to a lattice point of a mesh on the first image. The matching processor stores the matching results recorded as a corresponding point file. An intermediate image generator generates an intermediate image between the first image and the second image based on the corresponding point file. In particular, in generating the intermediate image, an attribute of the pixels on one image may be used as such without the attribute being interpolated between pixels of each image. Thus, when generating intermediate images, only one image and a smaller corresponding point file can be used.

    摘要翻译： 一种用于使用少量数据快速生成和显示运动图像的图像插值方法和装置。 图像输入单元输入第一图像和第二图像。 匹配处理器计算那些图像之间的像素匹配，使得相对于第一图像上的网格的格点在第二图像上获得相应的点。 匹配处理器存储记录为相应点文件的匹配结果。 中间图像生成器基于对应的点文件生成第一图像和第二图像之间的中间图像。 特别地，在生成中间图像时，可以使用一个图像上的像素的属性，而不会在每个图像的像素之间内插属性。 因此，当生成中间图像时，可以仅使用一个图像和较小的对应点文件。

    Image coding method and apparatus and image decoding method and apparatus
    8.
    发明授权
    Image coding method and apparatus and image decoding method and apparatus 失效

    公开(公告)号：US07050637B2

    公开(公告)日：2006-05-23

    申请号：US10092205

    申请日：2002-03-07

    申请人： Kozo Akiyoshi ,  Nobuo Akiyoshi

    发明人： Kozo Akiyoshi ,  Nobuo Akiyoshi

    IPC分类号： G06K9/36

    CPC分类号： H04N19/33 ,  H04N19/51 ,  H04N19/89

    摘要： An image coding and decoding technology for digital movie or video that provides for error checking within the digital video files. The digital video is coded in a data stream that includes key frames and correspondence data between key frames as well as additional correspondence data between somewhat separated key frames. During decoding, an intermediate image generator generates an intermediate frame or frames by interpolation, based on key frame data and correspondence data file between key frames. If an error detector detects an error in an input coded data stream, an error controller instructs the intermediate image generator to perform an error avoidance processing which may include substituting another key frame for an error-containing key frame or use of the additional correspondence data to create the intermediate key frame or frames for an error-containing correspondence data file, and so forth.

    Multiresolutional critical point filter and image matching using the same
    10.
    发明授权
    Multiresolutional critical point filter and image matching using the same 失效
    多元临界点滤波器和使用相同的图像匹配

    公开(公告)号：US6018592A

    公开(公告)日：2000-01-25

    申请号：US848099

    申请日：1997-04-28

    申请人： Yoshihisa Shinagawa ,  Tosiyasu Laurence Kunii

    发明人： Yoshihisa Shinagawa ,  Tosiyasu Laurence Kunii

    IPC分类号： G06T1/00 ,  G06K9/46 ,  G06K9/64 ,  G06K9/68 ,  G06T5/20 ,  G06T7/00 ,  G06K9/56 ,  G06T3/40

    CPC分类号： G06K9/6206 ,  G06K9/4609 ,  G06K9/4671 ,  G06K9/6857

    摘要： A multiresolutional filter called a critical point filter is introduced. This filter extracts a maximum, a minimum, and two types of saddle points of pixel intensity for every 2.times.2 (horizontal x vertical) pixels so that an image of a lower level of resolution is newly generated for every type of a critical point. Using this multiresolutional filter, a source image and a destination image are hierarchized, and source hierarchical images and destination hierarchical images are matched using image characteristics recognized through a filtering operation.

    摘要翻译： 引入了称为临界点滤波器的多分辨率滤波器。 该滤波器针对每2×2（水平x垂直）像素提取像素强度的最大值，最小值和两种类型的鞍点，使得对于每种类型的临界点新生成较低分辨率的图像。 使用该多分辨率滤波器，源图像和目的图像被分层，并且使用通过滤波操作识别的图像特征来匹配源分层图像和​​目的地分层图像。