利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.023 秒)

    Optimized Filter Selection for Reference Picture Processing
    3.
    发明申请
    Optimized Filter Selection for Reference Picture Processing 有权
    参考图像处理的优化滤波器选择

    公开(公告)号：US20130194505A1

    公开(公告)日：2013-08-01

    申请号：US13877140

    申请日：2011-09-19

    申请人： Peshala V. Pahalawatta ,  Yuwen He ,  Alexandros Tourapis

    发明人： Peshala V. Pahalawatta ,  Yuwen He ,  Alexandros Tourapis

    IPC分类号： H04N5/21

    CPC分类号： H04N19/117 ,  H04N5/21 ,  H04N19/147 ,  H04N19/176 ,  H04N19/39 ,  H04N19/52 ,  H04N19/597 ,  H04N19/82

    摘要： Reference processing may be used in a video encoder or decoder to derive reference pictures that are better correlated with a source image to be encoded or decoded, which generally yields better coding efficiency. Methods for filter selection for a reference processing unit adapted for use in a video codec system are discussed. Specifically, methods for filter selection based on performing motion estimation and obtaining distortion/cost information by comparing reference pictures, either processed or non-processed, with the source image to be encoded are discussed.

    摘要翻译： 可以在视频编码器或解码器中使用参考处理来导出与要编码或解码的源图像更好相关的参考图像，这通常产生更好的编码效率。 讨论了适用于视频编解码系统的参考处理单元的滤波器选择方法。 具体地，讨论了基于执行运动估计的滤波器选择的方法，并且通过将被处理或未处理的参考图像与待编码的源图像进行比较来获得失真/成本信息。

    Filtering for image and video enhancement using asymmetric samples
    5.
    发明授权
    Filtering for image and video enhancement using asymmetric samples 有权
    使用不对称样本过滤图像和视频增强

    公开(公告)号：US09503757B2

    公开(公告)日：2016-11-22

    申请号：US13574241

    申请日：2011-01-07

    申请人： Peshala V. Pahalawatta ,  Alexandros Tourapis ,  Athanasios Leontaris

    发明人： Peshala V. Pahalawatta ,  Alexandros Tourapis ,  Athanasios Leontaris

    IPC分类号： H04N19/117 ,  H04N19/85 ,  H04N19/80 ,  H04N19/597 ,  H04N19/48 ,  H04N19/33 ,  H04N19/31

    CPC分类号： H04N19/85 ,  H04N19/31 ,  H04N19/33 ,  H04N19/48 ,  H04N19/597 ,  H04N19/80

    摘要： Filtering lower quality images or sequences of images with higher quality images or sequences of images. The filtering is utilized in a post-process, decoded, or encoded images including multiple sets of images that are filtered and/or combined. Different image features including, for example, quality, frequency characteristics, temporal resolution, spatial resolution, number of views, or bit-depth are present in the images. In one embodiment, the filtering comprises a multi-hypothesis filtering and the confidence value comprises a difference between the filtered sample and samples lying within a filter support. The post processes images are then stored or distributed.

    摘要翻译： 用更高质量的图像或序列的图像过滤较低质量的图像或图像序列。 该过滤被用于后处理，解码或编码的图像，包括经过滤和/或组合的多组图像。 在图像中存在包括例如质量，频率特性，时间分辨率，空间分辨率，视图数量或位深度的不同图像特征。 在一个实施例中，滤波包括多假设滤波，置信值包括滤波样本与位于滤波器支持中的样本之间的差。 然后存储或分发后处理图像。

    Directed Interpolation and Data Post-Processing
    8.
    发明申请
    Directed Interpolation and Data Post-Processing 有权
    定向插值和数据后处理

    公开(公告)号：US20120026288A1

    公开(公告)日：2012-02-02

    申请号：US13255308

    申请日：2010-04-20

    申请人： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin Stec

    发明人： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin Stec

    IPC分类号： H04N13/00 ,  H04N7/26

    CPC分类号： H04N19/80 ,  H04N13/10 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/17 ,  H04N19/172 ,  H04N19/40 ,  H04N19/423 ,  H04N19/587 ,  H04N19/597 ,  H04N19/70 ,  H04N19/86

    摘要： An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bit-stream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.

    摘要翻译： 编码装置评估要应用于视频流的多个处理和/或后处理算法和/或方法，并且以编码的比特流或以编码的比特流或者编码比特流的方式/算法，类别或类别的方法/ 作为与编码比特流相关的副信息。 解码装置或后处理器利用信号通知的算法或基于信号方法或算法选择算法/方法。 该选择基于例如在解码器/后处理器和/或执行成本上的算法/方法的可用性。 视频流可以包括例如下采样多路复用立体图像，并且所选择的算法可以包括有助于恢复下采样图像的任何上变频和/或纠错技术。

    Conversion of interleaved data sets, including chroma correction and/or correction of checkerboard interleaved formatted 3D images
    10.
    发明授权
    Conversion of interleaved data sets, including chroma correction and/or correction of checkerboard interleaved formatted 3D images 有权
    交织数据集的转换，包括色差校正和/或棋盘格交错格式化3D图像的校正

    公开(公告)号：US09264690B2

    公开(公告)日：2016-02-16

    申请号：US13062109

    申请日：2009-09-03

    申请人： Peshala V. Pahalawatta ,  Alexandros Tourapis

    发明人： Peshala V. Pahalawatta ,  Alexandros Tourapis

    IPC分类号： H04N13/00 ,  H04N9/64 ,  H04N9/78

    CPC分类号： H04N13/139 ,  H04N9/646 ,  H04N9/78 ,  H04N13/15 ,  H04N13/161 ,  H04N13/178

    摘要： Conversion of interleaved data and/or correction of color samples or other data are corrected by recognizing an underlying arrangement or format of different data sets within a data stream and a conversion process applied that causes bleeding between the sets. The data sets are, for example, separate channel views of a 3D display, and the corruption occurs, for example, upon up-conversion of color samples that take into account both views together rather than individually. The invention is embodied, for example, as part of a playback device, display, or as a stand alone converter box that corrects the corrupted samples by at least one of substitution, filtering, or interpolation with appropriately selected samples (e.g., neighboring samples of a same view).

    摘要翻译： 通过识别数据流内的不同数据集的底层布置或格式以及应用导致组之间出血的转换处理来校正交织数据的转换和/或颜色样本或其他数据的校正。 数据集是例如3D显示器的单独的通道视图，并且例如，在将两个视图相结合而不是单独地考虑两者的颜色样本的上转换时，发生损坏。 本发明例如被实现为回放设备，显示器或作为独立的转换器盒的一部分，其通过用适当选择的样本（例如，替代，滤波或内插）中的至少一个来校正被破坏的样本 同一视图）。