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公开(公告)号：US09704066B2
公开(公告)日：2017-07-11
申请号：US14664662
申请日：2015-03-20
Applicant: Microsoft Technology Licensing, LLC
Inventor： Lihua Zhu , Sridhar Sankuratri , Shir Aharon , B. Anil Kumar , Jeroen E. van Eesteren
CPC classification number: G06K9/6268 , G06K9/4642 , G06K9/6267
Abstract: Techniques are described for performing multi-stage image classification. For example, multi-stage image classification can comprise a first classification stage and a second classification stage. The first classification stage can determine an overall classification for an input image (e.g., based on a relative entropy result calculated for the input image). The second classification stage can be performed by dividing the image into a plurality of blocks and classifying individual blocks, or groups of blocks, based on a classification model that is specific to the overall classification of the image determined in the first classification stage.
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公开(公告)号：US20180234686A1
公开(公告)日：2018-08-16
申请号：US15955558
申请日：2018-04-17
Applicant: Microsoft Technology Licensing, LLC
Inventor： Lihua Zhu , Sridhar Sankuratri , B. Anil Kumar , Yongjun Wu , Sandeep Kanumuri , Shyam Sadhwani , Gary J. Sullivan
IPC: H04N19/182 , H04N21/2343 , H04N9/64 , H04N1/64 , H04N19/186 , H04N19/80 , H04N19/70 , H04N19/59 , H04N19/30 , H04N19/88
CPC classification number: H04N19/182 , H04N1/646 , H04N9/64 , H04N19/186 , H04N19/30 , H04N19/59 , H04N19/70 , H04N19/80 , H04N19/88 , H04N21/234327 , H04N21/234363
Abstract: Video frames of a higher-resolution chroma sampling format such as YUV 4:4:4 are packed into video frames of a lower-resolution chroma sampling format such as YUV 4:2:0 for purposes of video encoding. For example, sample values for a frame in YUV 4:4:4 format are packed into two frames in YUV 4:2:0 format. After decoding, the video frames of the lower-resolution chroma sampling format can be unpacked to reconstruct the video frames of the higher-resolution chroma sampling format. In this way, available encoders and decoders operating at the lower-resolution chroma sampling format can be used, while still retaining higher resolution chroma information. In example implementations, frames in YUV 4:4:4 format are packed into frames in YUV 4:2:0 format such that geometric correspondence is maintained between Y, U and V components for the frames in YUV 4:2:0 format.
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公开(公告)号：US20160330471A1
公开(公告)日：2016-11-10
申请号：US15107712
申请日：2014-01-03
Applicant: Lihua ZHU , Gary SULLIVAN , Jizheng XU , Sridhar SANKURATRI , Anil B. KUMAR , Feng WU , MICROSOFT TECHNOLOGY LICENSING, LLC
Inventor： Lihua Zhu , Gary J. Sullivan , Jizheng Xu , Sridhar Sankuratri , B. Anil Kumar , Feng Wu
Abstract: Innovations in the area of prediction of block vector (“BV”) values improve encoding or decoding of blocks using intra block copy (“BC”) prediction. For example, some of the innovations relate to use of a default BV predictor with a non-zero value. Other innovations relate to use of a selected one of multiple BV predictor candidates for a current block. Still other innovations relate to use of a skip mode in which a current intra-BC-predicted block uses a predicted BV value.
Abstract translation: 块矢量（“BV”）值的预测区域的创新改进了使用块内复制（“BC”）预测的块的编码或解码。 例如，一些创新涉及使用非零值的默认BV预测变量。 其他创新涉及使用当前块的多个BV预测变量候选者中的一个。 其他创新涉及使用当前BC内预测块使用预测的BV值的跳过模式。
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公开(公告)号：US20150181236A1
公开(公告)日：2015-06-25
申请号：US14642608
申请日：2015-03-09
Applicant: Microsoft Technology Licensing, LLC
Inventor： Paul Johan Hsieh , Denis Sergeyevich Shchepetov , Sridhar Sankuratri , Damien Gerard Saint Macary
IPC: H04N19/61
CPC classification number: H04N19/619 , G06K9/36 , G06T9/00 , G06T9/007 , H04N19/60
Abstract: An invention is disclosed for performing differencing of graphical data in post-transform space for a remote presentation session. Graphical data is transformed from a first representation to a second representation (e.g. with a DWT), and then a difference is taken of the post-transform data and the post-transform data of the frame that preceded the current frame. This difference is then encoded and transmitted to a client, which decodes it, and creates a representation of the graphical data using the delta, and a previously determined representation of the previous frame. By performing differencing in post-transform space, fidelity of the remote presentation session is retained while it may decrease bandwidth. This may occur because the entropy of the delta representation is usually lower than a non-delta representation while the scheme retains the identical data of the final decoded image of the non-delta version of the same compression scheme.
Abstract translation: 公开了一种用于在远程呈现会话的后变换空间中执行图形数据的差异的发明。 将图形数据从第一表示变换到第二表示（例如，具有DWT），然后对当前帧之前的帧的后变换数据和后变换数据进行区别。 然后将该差异编码并发送到客户端，客户端对其进行解码，并使用增量和先前确定的前一帧的表示来创建图形数据的表示。 通过在后变换空间中执行差分，保留远程呈现会话的保真度，同时可以减少带宽。 这可能是因为Δ表示的熵通常低于非增量表示，而该方案保留相同压缩方案的非增量版本的最终解码图像的相同数据。
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公开(公告)号：US20240146955A1
公开(公告)日：2024-05-02
申请号：US18404749
申请日：2024-01-04
Applicant: Microsoft Technology Licensing, LLC
Inventor： Lihua Zhu , Gary J. Sullivan , Jizheng Xu , Sridhar Sankuratri , B. Anil Kumar , Feng Wu
Abstract: Innovations in the area of prediction of block vector (“By”) values improve encoding or decoding of blocks using intra block copy (“BC”) prediction. For example, some of the innovations relate to use of a default BV predictor with a non-zero value. Other innovations relate to use of a selected one of multiple BV predictor candidates for a current block. Still other innovations relate to use of a skip mode in which a current intra-BC-predicted block uses a predicted BV value.
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Patent Agency Ranking
公开(公告)号：US11910005B2
公开(公告)日：2024-02-20
申请号：US17751392
申请日：2022-05-23
Applicant: Microsoft Technology Licensing, LLC
Inventor： Lihua Zhu , Gary J. Sullivan , Jizheng Xu , Sridhar Sankuratri , B. Anil Kumar , Feng Wu
Abstract: Innovations in the area of prediction of block vector (“BV”) values improve encoding or decoding of blocks using intra block copy (“BC”) prediction. For example, some of the innovations relate to use of a default BV predictor with a non-zero value. Other innovations relate to use of a selected one of multiple BV predictor candidates for a current block. Still other innovations relate to use of a skip mode in which a current intra-BC-predicted block uses a predicted BV value.
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公开(公告)号：US10469863B2
公开(公告)日：2019-11-05
申请号：US15107712
申请日：2014-01-03
Applicant: Microsoft Technology Licensing, LLC
Inventor： Lihua Zhu , Gary J. Sullivan , Jizheng Xu , Sridhar Sankuratri , B. Anil Kumar , Feng Wu
Abstract: Innovations in the area of prediction of block vector (“BV”) values improve encoding or decoding of blocks using intra block copy (“BC”) prediction. For example, some of the innovations relate to use of a default BV predictor with a non-zero value. Other innovations relate to use of a selected one of multiple BV predictor candidates for a current block. Still other innovations relate to use of a skip mode in which a current intra-BC-predicted block uses a predicted BV value.
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公开(公告)号：US09386319B2
公开(公告)日：2016-07-05
申请号：US14019436
申请日：2013-09-05
Applicant: Microsoft Technology Licensing, LLC
Inventor： Lihua Zhu , Sridhar Sankuratri , Arjun Dube , B. Anil Kumar , Nadim Abdo
IPC: G06K9/36 , H04N19/44 , G06F3/14 , H04N19/117 , H04N19/86 , G06T9/00 , H04N19/136 , H04N19/182 , H04N19/17 , H04N19/167 , H04N19/27
CPC classification number: H04N19/44 , G06F3/1454 , G06T9/00 , G09G2340/02 , G09G2350/00 , H04N19/117 , H04N19/136 , H04N19/167 , H04N19/17 , H04N19/182 , H04N19/27 , H04N19/86
Abstract: Methods and systems for processing graphical data received at a computing system from a remote source are described. One method includes decoding received graphical content, the received graphical content including an image being compressed using a plurality of codecs, wherein decoding the received graphical content includes creating a decoded image. The method also includes, based on quality of the received graphical content, selecting from among a plurality of filters to apply to the decoded image. The method further includes applying a plurality of filters to at least a portion of the decoded image.
Abstract translation: 描述了用于处理在计算系统从远程源接收的图形数据的方法和系统。 一种方法包括解码接收到的图形内容，所接收的图形内容包括使用多个编解码器进行压缩的图像，其中解码所接收的图形内容包括创建解码图像。 该方法还包括基于所接收的图形内容的质量，从多个滤波器中进行选择以应用于解码图像。 该方法还包括将多个滤波器应用于解码图像的至少一部分。
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公开(公告)号：US09332277B2
公开(公告)日：2016-05-03
申请号：US14642608
申请日：2015-03-09
Applicant: Microsoft Technology Licensing, LLC
Inventor： Paul Johan Hsieh , Denis Sergeyevich Shchepetov , Sridhar Sankuratri , Damien Gerard Saint Macary
CPC classification number: H04N19/619 , G06K9/36 , G06T9/00 , G06T9/007 , H04N19/60
Abstract: An invention is disclosed for performing differencing of graphical data in post-transform space for a remote presentation session. Graphical data is transformed from a first representation to a second representation (e.g. with a DWT), and then a difference is taken of the post-transform data and the post-transform data of the frame that preceded the current frame. This difference is then encoded and transmitted to a client, which decodes it, and creates a representation of the graphical data using the delta, and a previously determined representation of the previous frame. By performing differencing in post-transform space, fidelity of the remote presentation session is retained while it may decrease bandwidth. This may occur because the entropy of the delta representation is usually lower than a non-delta representation while the scheme retains the identical data of the final decoded image of the non-delta version of the same compression scheme.
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公开(公告)号：US10523953B2
公开(公告)日：2019-12-31
申请号：US15955558
申请日：2018-04-17
Applicant: Microsoft Technology Licensing, LLC
Inventor： Lihua Zhu , Sridhar Sankuratri , B. Anil Kumar , Yongjun Wu , Sandeep Kanumuri , Shyam Sadhwani , Gary J. Sullivan
IPC: H04N19/182 , H04N9/64 , H04N19/70 , H04N19/30 , H04N19/186 , H04N19/80 , H04N19/59 , H04N19/88 , H04N1/64 , H04N21/2343
Abstract: Video frames of a higher-resolution chroma sampling format such as YUV 4:4:4 are packed into video frames of a lower-resolution chroma sampling format such as YUV 4:2:0 for purposes of video encoding. For example, sample values for a frame in YUV 4:4:4 format are packed into two frames in YUV 4:2:0 format. After decoding, the video frames of the lower-resolution chroma sampling format can be unpacked to reconstruct the video frames of the higher-resolution chroma sampling format. In this way, available encoders and decoders operating at the lower-resolution chroma sampling format can be used, while still retaining higher resolution chroma information. In example implementations, frames in YUV 4:4:4 format are packed into frames in YUV 4:2:0 format such that geometric correspondence is maintained between Y, U and V components for the frames in YUV 4:2:0 format.
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