System and method for tiled multiresolution encoding/decoding and communication with lossless selective regions of interest via data reuse
    8.
    发明授权
    System and method for tiled multiresolution encoding/decoding and communication with lossless selective regions of interest via data reuse 有权
    用于平铺多分辨率编码/解码和通过数据重用与无损选择性感兴趣区域进行通信的系统和方法

    公开(公告)号:US06904176B1

    公开(公告)日:2005-06-07

    申请号:US09999760

    申请日:2001-10-31

    IPC分类号: G06K9/32 G06K9/36 H04N7/26

    摘要: A method and apparatus for processing an image is described. In one embodiment, the method comprises: receiving a portion of an encoded version of a downsized image and one or more encoded residual images, decoding the portion of the encoded version of the downsized image to create a decoded portion of the downsized image, decoding a portion of at least one or more encoded residual images, enlarging the decoded portion of the portion of the downsized image, and combining the enlarged and decoded portion of the downsized image with a first decoded residual image to create a new image.

    摘要翻译: 描述用于处理图像的方法和装置。 在一个实施例中,该方法包括:接收缩小尺寸图像的编码版本的一部分和一个或多个编码残差图像,对经缩小尺寸图像的编码版本的部分进行解码,以创建缩小图像的解码部分,解码 至少一个或多个编码残差图像的部分,放大缩小图像的部分的解码部分,以及将缩小尺寸图像的放大和解码部分与第一解码剩余图像组合以创建新图像。

    Hybrid wavelet and JPEG system and method for compression of color images
    9.
    发明授权
    Hybrid wavelet and JPEG system and method for compression of color images 有权
    混合小波和JPEG系统和彩色图像压缩方法

    公开(公告)号:US06389160B1

    公开(公告)日:2002-05-14

    申请号:US09289458

    申请日:1999-04-09

    IPC分类号: G06K900

    CPC分类号: G06T9/007

    摘要: A data encoder and method encodes color image data. The image data include Y, U and V data. A data image quality level is selected, which corresponds to a compression ratio. The Y data is encoded using a wavelet or wavelet-like compression method in accordance with the selected data image quality level. When the compression ratio is less than a threshold value, indicating a low compression ratio, the U and V data are compressed using a JPEG compression method. Otherwise the U and V data are compressed using the wavelet or wavelet-like compression method. The encoded image data includes an indication of which compression method was used to encode the U and V data. When encoded image data is decoded by a data decoder, the decoder determines which compression method was used to encode the U and V data, and then decodes the encoded image data accordingly.

    摘要翻译: 数据编码器和方法对彩色图像数据进行编码。 图像数据包括Y,U和V数据。 选择对应于压缩比的数据图像质量等级。 根据选择的数据图像质量水平,使用小波或小波样压缩方法对Y数据进行编码。 当压缩比小于阈值时,表示低压缩比,使用JPEG压缩方法压缩U和V数据。 否则,使用小波或小波压缩方法压缩U和V数据。 编码图像数据包括用于对U和V数据进行编码的压缩方法的指示。 当编码图像数据被数据解码器解码时,解码器确定使用哪种压缩方法对U和V数据进行编码,然后相应地解码编码图像数据。

    Encoding video at multiple resolution levels
    10.
    发明授权
    Encoding video at multiple resolution levels 失效
    以多个分辨率级别编码视频

    公开(公告)号:US08270469B2

    公开(公告)日:2012-09-18

    申请号:US11639780

    申请日:2006-12-15

    IPC分类号: H04N7/12

    摘要: A method and related system of encoding or re-encoding video is disclosed. In the method, video data comprising a sequence of frames is received. For a respective frame in the sequence of frames, a multi-level frame is generated comprising the respective frame and a plurality of copies of the respective frame. Each copy has an associated video resolution level that is a member of a predefined range of video resolution levels, ranging from a highest video resolution level to a lowest video resolution level. The multi-level frame is encoded.

    摘要翻译: 公开了编码或重新编码视频的方法和相关系统。 在该方法中,接收包括帧序列的视频数据。 对于帧序列中的相应帧,生成包括相应帧和相应帧的多个副本的多级帧。 每个副本具有相关联的视频分辨率级别,其是预定范围的视频分辨率级别的成员,范围从最高视频分辨率级别到最低视频分辨率级别。 多级帧被编码。