公开(公告)号：US20100128789A1

公开(公告)日：2010-05-27

申请号：US12451264

申请日：2008-04-25

Applicant: Joel Sole ,  Yu Huang ,  Joan Llach

Inventor： Joel Sole ,  Yu Huang ,  Joan Llach

IPC: H04N7/30 ,  H04N7/26 ,  H04N7/64

CPC classification number: G06T7/2006 ,  G06T5/005 ,  G06T7/194 ,  G06T7/215 ,  G06T2207/10016

Abstract: A method for processing a video sequence having a plurality of frames includes the steps of: extracting features from each of the frames, determining correspondences between the extracted features from two of the frames, estimating motion in the video sequence based on the determined correspondences, generating a background mosaic for the video sequence based on the estimated motion, and performing foreground-background segmentation on each of the frames based on the background mosaic.

Abstract translation: 一种用于处理具有多个帧的视频序列的方法包括以下步骤：从每个帧中提取特征，确定来自两帧中提取的特征之间的对应关系，基于所确定的对应度估计视频序列中的运动，产生 基于估计运动的视频序列的背景马赛克，以及基于背景马赛克对每个帧执行前景背景分割。

公开(公告)号：US09214030B2

公开(公告)日：2015-12-15

申请号：US12451264

申请日：2008-04-25

Applicant: Joel Sole ,  Yu Huang ,  Joan Llach

Inventor： Joel Sole ,  Yu Huang ,  Joan Llach

IPC: H04N7/30 ,  H04N7/26 ,  H04N7/64 ,  G06T7/20 ,  G06T5/00

CPC classification number: G06T7/2006 ,  G06T5/005 ,  G06T7/194 ,  G06T7/215 ,  G06T2207/10016

Abstract: A method for processing a video sequence having a plurality of frames includes the steps of: extracting features from each of the frames, determining correspondences between the extracted features from two of the frames, estimating motion in the video sequence based on the determined correspondences, generating a background mosaic for the video sequence based on the estimated motion, and performing foreground-background segmentation on each of the frames based on the background mosaic.

Abstract translation: 一种用于处理具有多个帧的视频序列的方法包括以下步骤：从每个帧中提取特征，确定来自两帧中提取的特征之间的对应关系，基于所确定的对应度估计视频序列中的运动，产生 基于估计运动的视频序列的背景马赛克，以及基于背景马赛克对每个帧执行前景背景分割。

公开(公告)号：US08159606B2

公开(公告)日：2012-04-17

申请号：US12460814

申请日：2009-07-24

Applicant: Joel Sole ,  Joan Llach

Inventor： Joel Sole ,  Joan Llach

IPC: H04N7/01 ,  H04N11/20

CPC classification number: G06T3/4007

Abstract: A method and apparatus are provided for reversible, polynomial based image scaling. The apparatus includes a video scaler for performing image scaling from a first base resolution image to a higher resolution image, and from the higher resolution image to a second base resolution image. The first and the second base resolution images are equal on a pixel-by-pixel basis for an entirety of the first and the second base resolution images. A scaling function used for the image scaling is based on a polynomial function having two or more degrees.

Abstract translation: 提供了一种用于可逆的，基于多项式的图像缩放的方法和装置。 该装置包括用于执行从第一基本分辨率图像到较高分辨率图像以及从较高分辨率图像到第二基本分辨率图像的图像缩放的视频缩放器。 对于第一和第二基本分辨率图像的整体，第一和第二基本分辨率图像在逐个像素的基础上是相等的。 用于图像缩放的缩放函数基于具有两度或更多度的多项式函数。

公开(公告)号：US20100026887A1

公开(公告)日：2010-02-04

申请号：US12460814

申请日：2009-07-24

Applicant: Joel Sole ,  Joan Llach

Inventor： Joel Sole ,  Joan Llach

IPC: H04N7/01

CPC classification number: G06T3/4007

Abstract: A method and apparatus are provided for reversible, polynomial based image scaling. The apparatus includes a video scaler for performing image scaling from a first base resolution image to a higher resolution image, and from the higher resolution image to a second base resolution image. The first and the second base resolution images are equal on a pixel-by-pixel basis for an entirety of the first and the second base resolution images. A scaling function used for the image scaling is based on a polynomial function having two or more degrees.

Abstract translation: 提供了一种用于可逆的，基于多项式的图像缩放的方法和装置。 该装置包括用于执行从第一基本分辨率图像到较高分辨率图像以及从较高分辨率图像到第二基本分辨率图像的图像缩放的视频缩放器。 对于第一和第二基本分辨率图像的整体，第一和第二基本分辨率图像在逐个像素的基础上是相等的。 用于图像缩放的缩放函数基于具有两度或更多度的多项式函数。

公开(公告)号：US10080024B2

公开(公告)日：2018-09-18

申请号：US13697562

申请日：2011-05-13

Applicant: Qian Xu ,  Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu

Inventor： Qian Xu ,  Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Xiaoan Lu

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/157 ,  H04N19/105 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/134 ,  H04N19/61 ,  H04N19/593 ,  H04N19/12 ,  H04N19/132

CPC classification number: H04N19/157 ,  H04N19/105 ,  H04N19/12 ,  H04N19/132 ,  H04N19/134 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

Abstract: Methods and apparatus are provided for intra coding a block having pixels assigned to groups. An apparatus includes a video encoder for encoding a block in a picture using intra prediction by dividing pixels within the block into at least a first group and a second group and encoding the pixels in the first group prior to encoding the pixels in the second group. A prediction for at least one of the pixels within the second group is obtained by evaluating the pixels within the first group and the second group.

公开(公告)号：US09743081B2

公开(公告)日：2017-08-22

申请号：US13382800

申请日：2010-07-07

Applicant: Joel Sole ,  Yunfei Zheng ,  Qian Xu ,  Peng Yin ,  Xiaoan Lu

Inventor： Joel Sole ,  Yunfei Zheng ,  Qian Xu ,  Peng Yin ,  Xiaoan Lu

IPC: H04N19/00 ,  H04N19/117 ,  H04N19/147 ,  H04N19/46 ,  H04N19/196 ,  H04N19/174 ,  H04N19/82 ,  H04N19/86

CPC classification number: H04N19/117 ,  H04N19/147 ,  H04N19/174 ,  H04N19/196 ,  H04N19/46 ,  H04N19/82 ,  H04N19/86

Abstract: Methods and apparatus are provided for collaborative partition coding for region based filters. An apparatus includes a video encoder (100) for encoding image data for a plurality of regions in a picture. The video encoder (100) includes multiple filters for filtering the image data based on region partition information for the plurality of regions. The region partition information for the plurality of regions is shared between the multiple filters.

公开(公告)号：US09723330B2

公开(公告)日：2017-08-01

申请号：US12998721

申请日：2009-11-18

Applicant: Jun Xu ,  Joel Sole ,  Peng Yin ,  Yunfei Zheng

Inventor： Jun Xu ,  Joel Sole ,  Peng Yin ,  Yunfei Zheng

IPC: H04N7/12 ,  G06K9/36 ,  H04N19/86 ,  H04N19/70 ,  H04N19/61 ,  H04N19/117 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/18 ,  H04N19/80

CPC classification number: H04N19/86 ,  H04N19/117 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/18 ,  H04N19/61 ,  H04N19/70 ,  H04N19/80

Abstract: Methods and apparatus are provided for sparsity-based de-artifact filtering for video encoding and decoding. An apparatus includes an encoder (400) for encoding at least a portion of an image by grouping regions within the portion based on a grouping metric, transforming the grouped regions, adaptively performing de-artifact filtering on the transformed regions using a de-artifacting filter (413) included in the encoder, inverse transforming the de-artifacted regions to create replacement regions, and restoring the replacement regions to positions with the image from which the regions were taken prior to the grouping.

公开(公告)号：US09510009B2

公开(公告)日：2016-11-29

申请号：US13698468

申请日：2011-05-17

Applicant: Liwei Guo ,  Peng Yin ,  Yunfei Zheng ,  Joel Sole ,  Qian Xu ,  Xiaoan Lu

Inventor： Liwei Guo ,  Peng Yin ,  Yunfei Zheng ,  Joel Sole ,  Qian Xu ,  Xiaoan Lu

IPC: H04N19/139 ,  H04N19/44 ,  H04N19/52 ,  H04N19/70

CPC classification number: H04N19/52 ,  H04N19/139 ,  H04N19/44 ,  H04N19/567 ,  H04N19/70

Abstract: Methods and apparatus are provided for adaptive motion vector candidate ordering for video encoding and decoding. An apparatus includes a video encoder for encoding a block in a picture by selecting an order of motion vector predictor candidates for the block responsive to a characteristic available at both the video encoder and a corresponding decoder. The characteristic excludes a mode in which the block is partitioned.

Abstract translation: 提供了用于视频编码和解码的自适应运动矢量候选排序的方法和装置。 一种装置包括：视频编码器，用于响应于在视频编码器和对应的解码器上可用的特性，选择图像中的块的运动矢量预测器候选的顺序来对图像中的块进行编码。 该特征排除块分割的模式。

公开(公告)号：US09049443B2

公开(公告)日：2015-06-02

申请号：US13138287

申请日：2009-10-21

Applicant: Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Cristina Gomila

Inventor： Joel Sole ,  Peng Yin ,  Yunfei Zheng ,  Cristina Gomila

IPC: H04N7/12 ,  H04N11/02 ,  H04N19/137 ,  H04N19/196 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/147 ,  H04N19/46 ,  H04N19/122 ,  H04N19/61 ,  H04N19/463 ,  H04N19/136 ,  H04N19/86

CPC classification number: H04N19/136 ,  H04N19/119 ,  H04N19/12 ,  H04N19/122 ,  H04N19/137 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/197 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70 ,  H04N19/86

Abstract: There are provided methods and apparatus for transform selection in video coding. An apparatus includes a video encoder for encoding at least a block in a picture by selecting a transform to apply to a residue of the block from a set of two or more available transforms. The transform is selected based on at least one of an inter prediction mode used to predict at least one reference for the block, one or more values corresponding to a motion vector, a value of a residue of one or more previously encoded blocks, a value of prediction data for the block, one or more transform selections of one or more neighboring reconstructed blocks, and a quantization step applied to transform coefficients for the residue of the block.

Abstract translation: 提供了视频编码中的变换选择的方法和装置。 一种装置包括：视频编码器，用于通过从一组两个或多个可用变换中选择适用于块的残差的变换来对图像中的至少块进行编码。 基于用于预测块的至少一个参考的帧间预测模式，对应于运动矢量的一个或多个值，一个或多个先前编码块的残差的值，值 用于块的预测数据，一个或多个相邻重构块的一个或多个变换选择，以及应用于变换块的残差的系数的量化步长。

公开(公告)号：US09020287B2

公开(公告)日：2015-04-28

申请号：US13138860

申请日：2010-03-26

Applicant: Qian Xu ,  Yunfei Zheng ,  Joel Sole ,  Peng Yin ,  Xiaoan Lu

Inventor： Qian Xu ,  Yunfei Zheng ,  Joel Sole ,  Peng Yin ,  Xiaoan Lu

IPC: G06K9/36 ,  H04N19/82 ,  H04N19/159 ,  H04N19/176 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61 ,  H04N19/117 ,  H04N19/174

CPC classification number: H04N19/82 ,  H04N19/117 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

Abstract: There are provided method and apparatus for filter parameter determination and selection responsive to variable transforms in sparsity-based de-artifact filtering. An apparatus includes an encoder for encoding picture data for at least a portion of a picture. The encoder includes a sparsity-based de-artifact filter for performing sparsity-based de-artifact filtering on the portion. One or more filter parameters for the sparsity-based de-artifact filtering are determined and selected responsive to variable transforms.

Abstract translation: 提供了响应于基于稀疏度的去神器过滤中的可变变换的滤波器参数确定和选择的方法和装置。 一种装置包括：编码器，用于编码图像的至少一部分的图像数据。 编码器包括基于稀疏度的去伪造过滤器，用于在该部分上执行基于稀疏度的去伪造过滤。 响应于可变变换确定和选择用于基于稀疏度的去伪造过滤的一个或多个过滤器参数。