Apparatus for decoding coded video data with reduced memory size
    1.
    发明授权
    Apparatus for decoding coded video data with reduced memory size 失效
    用于以减小的存储器大小解码编码的视频数据的装置

    公开(公告)号:US06243421B1

    公开(公告)日:2001-06-05

    申请号:US08798433

    申请日:1997-02-10

    IPC分类号: H04N712

    摘要: An apparatus for decoding coded video data is provided which is capable of decreasing the storage size of its frame memory while attenuating the drift noise and minimizing lowering of the resolution during the reconstruction of the coded video data. The apparatus comprises a data size reducer for reducing the size of a decoded video data reconstructed by subsampling, pixel differential coding, or other methods, a frame memory for saving a reduced video data released from the data size reducer, and a data size recover for recovering the original size of the decoded video data from the reduced data saved in the frame memory. Accordingly, the storage size of the frame memory is decreased by a combination of compression of pixel data and IDCT processing in a reduced block size and will successfully attenuate unwanted drift noise and minimize declination of the resolution.

    摘要翻译: 提供一种用于对编码视频数据进行解码的装置,其能够减少其帧存储器的存储尺寸,同时在编码视频数据的重建期间减弱漂移噪声并最小化分辨率降低。 该装置包括数据尺寸减小器,用于减小通过子采样,像素差分编码或其他方法重构的解码视频数据的大小,用于保存从数据大小缩小器释放的缩小视频数据的帧存储器,以及用于 从保存在帧存储器中的缩减数据恢复解码的视频数据的原始大小。 因此,通过减少块大小的像素数据的压缩和IDCT处理的组合来减少帧存储器的存储大小,并且将成功地衰减不想要的漂移噪声并最小化分辨率的偏差。

    System for moving object detection in moving picture
    2.
    发明授权
    System for moving object detection in moving picture 失效
    运动图像移动物体检测系统

    公开(公告)号:US6025879A

    公开(公告)日:2000-02-15

    申请号:US909344

    申请日:1997-08-11

    CPC分类号: H04N5/145 H04N19/503

    摘要: A system for detecting a moving object in a moving picture, which can detect a moving object by block directly with a highly-accurate, simple process without completely decoding the compressed moving picture data. The picture block coding mode, the motion compensation mode and the motion vector information (information b) decoded in a variable-length decoder 1 and the texture information d detected by a texture information detector 7 are applied to a moving object detection processor 8. The moving object detection processor 8 judges whether the particular block is a moving object or not using the information b or the combined information b and the texture information d. This judgement is effected by a motion vector, a spatial similarity judgement and a temporal similarity judgement. The moving object detection information e resulting from the judgement is sent to a picture image processor 5 for processing the picture information f. A picture display unit 10 can display a non-moving object and a moving object with different brightness and in different colors.

    摘要翻译: 一种用于检测运动图像中的运动物体的系统,其可以直接用高精度,简单的过程直接检测移动物体,而不完全解码压缩的运动图像数据。 在可变长度解码器1中解码的图像块编码模式,运动补偿模式和运动矢量信息(信息b)以及由纹理信息检测器7检测到的纹理信息d被应用于移动物体检测处理器8。 移动物体检测处理器8使用信息b或组合信息b和纹理信息d来判断特定块是否是运动物体。 该判断由运动矢量,空间相似性判断和时间相似性判断来实现。 由判断得到的移动物体检测信息e被发送到用于处理图像信息f的图像处理器5。 图像显示单元10可以显示不同亮度和不同颜色的不移动物体和运动物体。

    Coding bit rate converting method and apparatus for coded audio data
    3.
    发明授权
    Coding bit rate converting method and apparatus for coded audio data 失效
    用于编码音频数据的编码比特率转换方法和装置

    公开(公告)号:US6134523A

    公开(公告)日:2000-10-17

    申请号:US988101

    申请日:1997-12-10

    CPC分类号: H04J3/1688

    摘要: Coding bit rate converting method and apparatus for coded audio data are disclosed to convert input coded audio data to output coded data of a coding bit rate lower than a target coding bit rate. A control output is taken out when the frame size of the input coded audio data is larger than the frame size determined by the target coding bit rate, and the output coded data is provided as a converted output by controlling parameters defining the frame size of the input coded audio data by the use of the control output in a predetermined procedure until the frame size of the input coded audio data becomes smaller than the frame size determined by the target coding bit rate.

    摘要翻译: 公开了用于编码音频数据的编码比特率转换方法和装置,以将输入的编码音频数据转换为输出比目标编码比特率低的编码比特率的编码数据。 当输入的编码音频数据的帧大小大于由目标编码比特率确定的帧大小时,取出控制输出,并且通过控制定义帧大小的参数来提供输出编码数据作为转换输出 通过使用控制输出以预定的过程输入编码的音频数据,直到输入的编码音频数据的帧大小变得小于由目标编码比特率确定的帧大小。

    Video query and editing system
    4.
    发明授权
    Video query and editing system 失效
    视频查询和编辑系统

    公开(公告)号:US06026389A

    公开(公告)日:2000-02-15

    申请号:US905809

    申请日:1997-08-04

    摘要: A video query and editing system which is capable of querying images without fast-forward and playback operations, to specify an editing start or end point easily, and to lower editing cost of compressed data. An edit control window is displayed (11) first, and then a file for query and editing is selected in query and editing file processing 12. In motion picture query processing 13, image query is performed in macro or micro units for the selected file and then the images to be under the query and editing are displayed. In editing section specification 14, a start point and an end point of a section for the editing are specified out of the images displayed in the motion picture query processing. Editing of a plurality of sections or other files are performed in the same manner as for the above processing if desired. After all the editing sections are determined, the editing sections are played back in editing section playback 17 to confirm the editing parts. Afterward, the images of the corresponding parts are edited in editing 18 to record them as a new file.

    摘要翻译: 一种视频查询和编辑系统,能够无需快进和重放操作查询图像,轻松指定编辑开始或结束点,并降低压缩数据的编辑成本。 首先显示编辑控制窗口(11),然后在查询和编辑文件处理12中选择用于查询和编辑的文件。在运动图像查询处理13中,以所选文件的宏单位或微单位执行图像查询, 然后显示要查询和编辑的图像。 在编辑部分规格14中,从在动态图像查询处理中显示的图像中指定用于编辑的部分的起始点和终点。 如果需要,以与上述处理相同的方式执行多个部分或其他文件的编辑。 在确定所有编辑部分之后,编辑部分将在编辑部分播放17中播放,以确认编辑部分。 之后,相应部分的图像在编辑18中进行编辑,以将其记录为新文件。

    Fast video browsing system
    5.
    发明授权
    Fast video browsing system 失效
    快速视频浏览系统

    公开(公告)号:US5754728A

    公开(公告)日:1998-05-19

    申请号:US691355

    申请日:1996-08-02

    摘要: To provide a fast video browsing system in which a fast playback suitable for keeping track of the contents can be performed by adaptively determining the number of skipped pictures according to the motion vector of picture, and displaying the picture after the skipped pictures. In step S1, pictures to be fast viewed are sequentially inputted, and in step S2, n pictures are skipped. In step S3, the picture after the n skipped pictures is displayed. In step S4, using the picture before or after the displayed picture with respect to time, a motion vector at one frame interval is detected, and in step S5, the number n of skipped pictures is determined from the motion vector. As a result, the number of skipped pictures can be adaptively determined by the motion vector of a picture.

    摘要翻译: 为了提供一种快速视频浏览系统,其中可以通过根据图像的运动矢量自适应地确定跳过的图像的数量,并且在跳过的图像之后显示图像,来执行适合于跟踪内容的快速重放。 在步骤S1中,顺序地输入要快速观看的图像,并且在步骤S2中,跳过n个图像。 在步骤S3中,显示n个跳过的图像之后的图像。 在步骤S4中,使用相对于时间显示的图像之前或之后的图像,检测一帧间隔的运动矢量,并且在步骤S5中,从运动矢量确定跳过图像的数量n。 结果,跳过的图片的数量可以由图片的运动矢量自适应地确定。