GENERATION OF HIGH DYNAMIC RANGE IMAGES FROM LOW DYNAMIC RANGE IMAGES
    3.
    发明申请
    GENERATION OF HIGH DYNAMIC RANGE IMAGES FROM LOW DYNAMIC RANGE IMAGES 审中-公开
    低动态范围图像的高动态范围图像的生成

    公开(公告)号:US20130107956A1

    公开(公告)日:2013-05-02

    申请号:US13807157

    申请日:2011-06-30

    IPC分类号: H04N7/26

    摘要: An approach is provided for generating a high dynamic range image from a low dynamic range image. The generation is performed using a mapping relating input data in the form of input sets of image spatial positions and a combination of color coordinates of low dynamic range pixel values associated with the image spatial positions to output data in the form of high dynamic range pixel values. The mapping is generated from a reference low dynamic range image and a corresponding reference high dynamic range image. Thus, a mapping from the low dynamic range image to a high dynamic range image is generated on the basis of corresponding reference images. The approach may be used for prediction of high dynamic range images from low dynamic range images in an encoder and decoder. A residual image may be generated and used to provide improved high dynamic range image quality.

    摘要翻译: 提供了用于从低动态范围图像生成高动态范围图像的方法。 使用以输入图像空间位置集合的形式的输入数据和与图像空间位置相关联的低动态范围像素值的颜色坐标的组合的映射来执行生成,以以高动态范围像素值的形式输出数据 。 该映射是从参考低动态范围图像和相应的参考高动态范围图像生成的。 因此,基于相应的参考图像生成从低动态范围图像到高动态范围图像的映射。 该方法可用于从编码器和解码器中的低动态范围图像预测高动态范围图像。 可以产生残余图像并用于提供改善的高动态范围图像质量。

    GENERATION OF HIGH DYNAMIC RANGE IMAGES FROM LOW DYNAMIC RANGE IMAGES IN MULTIVIEW VIDEO CODING
    4.
    发明申请
    GENERATION OF HIGH DYNAMIC RANGE IMAGES FROM LOW DYNAMIC RANGE IMAGES IN MULTIVIEW VIDEO CODING 有权
    多动态视频编码中低动态范围图像的高动态范围图像的生成

    公开(公告)号:US20130108183A1

    公开(公告)日:2013-05-02

    申请号:US13808232

    申请日:2011-07-05

    IPC分类号: G06T9/00

    摘要: Several approaches are disclosed for combining HDR and 3D image structure analysis and coding, in particular an encoding apparatus for encoding a first view high dynamic range image and a second view high dynamic range image comprising: first and second HDR image receivers (203, 1201) arranged to receive the first view high dynamic range image and a second view high dynamic range image; a predictor (209) arranged to predict the first view high dynamic range image from a low dynamic range representation of the first view high dynamic range image; and a view predictor (1203) to predict the second view high dynamic range image from at least one of the first view high dynamic range image, a low dynamic range representation of the second view high dynamic range image, or a low dynamic range representation of the first view high dynamic range image.

    摘要翻译: 公开了用于组合HDR和3D图像结构分析和编码的几种方法,特别是用于编码第一视图高动态范围图像和第二视图高动态范围图像的编码装置,包括:第一和第二HDR图像接收器(203,1201) 布置成接收第一视图高动态范围图像和第二视图高动态范围图像; 预测器(209),布置成从第一视图高动态范围图像的低动态范围表示预测第一视图高动态范围图像; 和从第一视图高动态范围图像,第二视图高动态范围图像的低动态范围表示或低动态范围图像的低动态范围表示中的至少一个来预测第二视图高动态范围图像的视图预测器(1203) 第一视图高动态范围图像。

    Generation of high dynamic range images from low dynamic range images in multiview video coding
    5.
    发明授权
    Generation of high dynamic range images from low dynamic range images in multiview video coding 有权
    在多视点视频编码中从低动态范围图像生成高动态范围图像

    公开(公告)号:US09098906B2

    公开(公告)日:2015-08-04

    申请号:US13808232

    申请日:2011-07-05

    摘要: Several approaches are disclosed for combining HDR and 3D image structure analysis and coding, in particular an encoding apparatus for encoding a first view high dynamic range image and a second view high dynamic range image comprising: first and second HDR image receivers (203, 1201) arranged to receive the first view high dynamic range image and a second view high dynamic range image; a predictor (209) arranged to predict the first view high dynamic range image from a low dynamic range representation of the first view high dynamic range image; and a view predictor (1203) to predict the second view high dynamic range image from at least one of the first view high dynamic range image, a low dynamic range representation of the second view high dynamic range image, or a low dynamic range representation of the first view high dynamic range image.

    摘要翻译: 公开了用于组合HDR和3D图像结构分析和编码的几种方法,特别是用于编码第一视图高动态范围图像和第二视图高动态范围图像的编码装置,包括:第一和第二HDR图像接收器(203,1201) 布置成接收第一视图高动态范围图像和第二视图高动态范围图像; 预测器(209),布置成从第一视图高动态范围图像的低动态范围表示预测第一视图高动态范围图像; 和从第一视图高动态范围图像,第二视图高动态范围图像的低动态范围表示或低动态范围图像的低动态范围表示中的至少一个来预测第二视图高动态范围图像的视图预测器(1203) 第一视图高动态范围图像。

    GENERATION OF DEPTH INDICATION MAPS
    6.
    发明申请
    GENERATION OF DEPTH INDICATION MAPS 审中-公开
    深度指示剂的产生

    公开(公告)号:US20130222377A1

    公开(公告)日:2013-08-29

    申请号:US13881091

    申请日:2011-10-25

    IPC分类号: G06T15/00

    摘要: An approach is provided for generating a depth indication map from an image. The generation is performed using a mapping relating input data in the form of input sets of image spatial positions and a combination of color coordinates of pixel values associated with the image spatial positions to output data in the form of depth indication values. The mapping is generated from a reference image and a corresponding reference depth indication map. Thus, a mapping from the image to a depth indication map is generated on the basis of corresponding reference images. The approach may be used for prediction of depth indication maps from images in an encoder and decoder. In particular, it may be used to generate predictions for a depth indication map allowing a residual image to be generated and used to provide improved encoding of depth indication maps.

    摘要翻译: 提供了一种用于从图像生成深度指示图的方法。 使用以输入图像空间位置集合的形式的输入数据和与图像空间位置相关联的像素值的颜色坐标的组合的映射来执行生成,以深度指示值的形式输出数据。 从参考图像和相应的参考深度指示图生成映射。 因此,基于对应的参考图像生成从图像到深度指示图的映射。 该方法可用于从编码器和解码器中的图像预测深度指示图。 特别地,其可以用于生成深度指示图的预测,允许生成残差图像并用于提供深度指示图的改进编码。

    Encoder, decoder, bit-stream, method of encoding, method of decoding an image pair corresponding with two views of a multi-view signal
    8.
    发明授权
    Encoder, decoder, bit-stream, method of encoding, method of decoding an image pair corresponding with two views of a multi-view signal 有权
    编码器,解码器,比特流,编码方法,对应于多视点信号的两个视图的图像对进行解码的方法

    公开(公告)号:US09344702B2

    公开(公告)日:2016-05-17

    申请号:US13814348

    申请日:2011-08-04

    摘要: A method of encoding an image pair (L,R) corresponding with two views of a multi-view signal, the method comprising generating a first combined image (LeRo) based on a first low pass filtered version of a first image of the image pair and a first low-pass filtered version of the second image of the image pair, generating a base-layer (LR-bas) by encoding the first combined image (LeRo), generating first and second disparity based predictors (LpredD,RpredD) and respectively associated first and second block-based displacement vectors (LHvec,RHvec) associated with the image information encoded in the base layer (LeRo′), the first and second block-based displacement vectors (LHvec,RHvec) being generated using disparity information present in the first and second images (L,R), the image information encoded in the base-layer (LeRo′) and the respective first and second images (L,R), generating an enhancement-layer (LR-enh; L-enh,R-enh) by encoding the first and second images (L,R) using the first and second disparity based predictors (LpredD, RpredD).

    摘要翻译: 一种编码对应于多视点信号的两个视图的图像对(L,R)的方法,所述方法包括基于图像对的第一图像的第一低通滤波版本生成第一组合图像(LeRo) 以及图像对的第二图像的第一低通滤波版本,通过对第一组合图像(LeRo)进行编码产生基本层(LR-bas),产生第一和第二基于视差的预测变量(LpredD,RpredD)和 与基底层(LeRo')中编码的图像信息相关联的第一和第二基于块的位移矢量(LHvec,RHvec),使用存在的差异信息生成的第一和第二基于块的位移矢量(LHvec,RHvec) 在第一和第二图像(L,R)中,编码在基层(LeRo')中的图像信息和相应的第一和第二图像(L,R),产生增强层(LR-enh; L- enh,R-enh)通过使用第一和第二图像(L,R)进行编码 第一和第二个基于视差的预测因子(LpredD,RpredD)。

    Image compression and decompression
    10.
    发明授权
    Image compression and decompression 有权
    图像压缩和解压缩

    公开(公告)号:US08582666B2

    公开(公告)日:2013-11-12

    申请号:US12519369

    申请日:2007-12-11

    IPC分类号: H04N7/12 H04N11/02 H04N11/04

    摘要: Clusters of pixels are defined for use in image compression and decompression. The image information used to define the clusters may include pixel values at predetermined positions relative to a pixel or related motion vectors, gradients, texture etc. During compression of images the image information relative to pixels is examined to determine the cluster to which it belongs. Thus pixels can be classified according to the cluster for their image information. In an embodiment the definitions of the clusters are selected dynamically, dependent on image content. For each cluster a control parameter set is computed for a post-processing operation, such as filter coefficients for filtering or statistical data for locally generating texture. The control parameter set is selected dependent on the image content so that, when the post-processing operation is applied to the image after decompression it will improve image quality for the pixels that are classified as belonging to the cluster. The compressed image and the control parameter sets are transmitted to a decompression apparatus. Upon decompression, the image information that represents the decompressed image is examined to classify pixels according to the clusters and the different control parameter sets for the selected clusters are used to control post-processing at the locations of the pixels.

    摘要翻译: 像素集合被定义用于图像压缩和解压缩。 用于定义聚类的图像信息可以包括相对于像素或相关运动矢量,渐变,纹理等的预定位置处的像素值。在压缩图像期间,检查相对于像素的图像信息以确定其所属的簇。 因此,像素可以根据集群的图像信息进行分类。 在一个实施例中,根据图像内容动态地选择簇的定义。 对于每个群集,计算用于后处理操作的控制参数集,例如用于过滤的滤波器系数或用于局部产生纹理的统计数据。 根据图像内容来选择控制参数集,使得当解压缩之后将后处理操作应用于图像时,其将改善被归类为属于集群的像素的图像质量。 压缩图像和控制参数集合被发送到解压缩装置。 在解压缩时,检查表示解压缩图像的图像信息,以根据簇分类像素,并且使用用于所选择的聚类的不同控制参数集来控制像素位置处的后处理。