公开(公告)号：US12262063B2

公开(公告)日：2025-03-25

申请号：US17934141

申请日：2022-09-21

Applicant: QUALCOMM Incorporated

Inventor： Gopi Madhan Dabbadi ,  Rosali Patro ,  Shengqi Yang ,  Sandeep Nellikatte Srivatsa ,  Ashish Mishra

IPC: H04N11/02 ,  H04N19/154 ,  H04N19/176 ,  H04N19/182 ,  H04N19/85

Abstract: Systems and methods for decoding are described. A decoder system is configured to retrieve, from the grain array stored within the on-chip memory, noise pixel data associated with at least one reconstructed video pixel. The decoder system is configured to apply noise data to the at least one reconstructed video pixel to generate at least one output video pixel. The noise data is determined based on the noise pixel data.

公开(公告)号：US11997298B2

公开(公告)日：2024-05-28

申请号：US17880396

申请日：2022-08-03

Applicant: QUALCOMM Incorporated

Inventor： Vikrant Mahajan ,  Sandeep Nellikatte Srivatsa ,  Ashish Mishra

IPC: H04N19/44 ,  H04N19/423 ,  H04N19/80

CPC classification number: H04N19/44 ,  H04N19/423 ,  H04N19/80

Abstract: Video decoding systems and techniques are described. A decoder reads first video data from a first block of a video frame. The decoder retrieves neighboring video data from a line buffer. The neighboring video data is from a neighboring block that neighbors the first block in the video frame. The decoder processes the first video data and the retrieved neighboring video data using a constrained directional enhancement filter (CDEF) to generate filtered first video data. The decoder upscales the filtered first video data using an upscaler to generate upscaled filtered first video data. The decoder upscales the retrieved neighboring video data using the upscaler to generate upscaled neighboring video data, for instance after generating the filtered first video data. The decoder processes the upscaled filtered first video data and the upscaled neighboring video data using a loop restoration (LR) filter to generate output video data.

公开(公告)号：US12120356B2

公开(公告)日：2024-10-15

申请号：US17875317

申请日：2022-07-27

Applicant: QUALCOMM Incorporated

Inventor： Vikrant Mahajan ,  Sandeep Nellikatte Srivatsa ,  Ashish Mishra ,  Lingfeng Li ,  Apoorva Nagarajan

IPC: H04N19/86 ,  H04N19/176

CPC classification number: H04N19/86 ,  H04N19/176

Abstract: Video decoding systems and techniques are described. The decoder applies a deblocking (DB) filter to the plurality of sub-blocks of a block of video data to generate a DB-filtered plurality of sub-blocks. The decoder applies the DB filter to one or more lines (e.g., columns) of pixels in an additional sub-block of the block to generate a DB-filtered portion of the additional sub-block. The one or more lines of pixels in the additional sub-block are filtered without filtering an entirety of the additional sub-block using the DB filter. The additional sub-block is adjacent to at least one of the plurality of sub-blocks. The decoder applies a constrained directional enhancement filter (CDEF) to the DB-filtered plurality of sub-blocks and the DB-filtered portion of the additional sub-block to generate a CDEF-filtered plurality of sub-blocks.

公开(公告)号：US20240214563A1

公开(公告)日：2024-06-27

申请号：US18069076

申请日：2022-12-20

Applicant: QUALCOMM Incorporated

Inventor： Vikrant Mahajan ,  Sandeep Nellikatte Srivatsa ,  Ashish Mishra ,  Apoorva Nagarajan ,  Divya Goswami

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/30

CPC classification number: H04N19/117 ,  H04N19/176 ,  H04N19/30

Abstract: A device for upscale filtering video data includes one or more processors configured to generate a number of upscaled pixels that is an integer multiple of one half of a size of a filter used to upscale filter the video data. The device may then store the remaining pixels to be used to upscale filter a subsequent, right-neighboring block. In this manner, the device may avoid generating upscaled pixels that will result in being unaligned with the block and that may not be output due to being unaligned.

公开(公告)号：US10356440B2

公开(公告)日：2019-07-16

申请号：US14503920

申请日：2014-10-01

Applicant: QUALCOMM Incorporated

Inventor： Ashish Mishra ,  Vikash Kumar

IPC: H04N19/423 ,  H04N19/625 ,  H04N19/44 ,  H04N19/61 ,  H04N19/91 ,  G06F17/16 ,  H04N19/426

Abstract: As the quality and quantity of shared video content increases, video encoding standards and techniques are being developed and improved to reduce bandwidth consumption over telecommunication and other networks. One such technique for compressing videos involves transforming image data into an alternate, encoding-friendly domain (e.g., by a two-dimensional discrete cosine transform). Transform modules may be implemented to perform these transformations, which may occur during both video encoding and decoding processes. Provided are exemplary techniques for improving the efficiency and performance of transform module implementations.

公开(公告)号：US10091530B2

公开(公告)日：2018-10-02

申请号：US14503669

申请日：2014-10-01

Applicant: QUALCOMM Incorporated

Inventor： Ashish Mishra ,  Arindam Mohanta

IPC: H04N19/61 ,  H04N19/119 ,  H04N19/146 ,  H04N19/176 ,  H04N19/52 ,  H04N19/593 ,  H04N19/182 ,  H04N19/82 ,  H04N19/436

Abstract: As the quality and quantity of shared video content increases, video encoding standards and techniques are being developed and improved to reduce bandwidth consumption over telecommunication and other networks. One technique to reduce bandwidth consumption is intra-prediction, which exploits spatial redundancies within video frames. Each video frame may be segmented into blocks, and intra-prediction may be applied to the blocks. However, intra-prediction of some blocks may rely upon the completion (e.g., reconstruction) of other blocks, which can make parallel processing challenging. Provided are exemplary techniques for improving the efficiency and throughput associated with the intra-prediction of multiple blocks.

公开(公告)号：US20160100193A1

公开(公告)日：2016-04-07

申请号：US14503920

申请日：2014-10-01

Applicant: QUALCOMM Incorporated

Inventor： Ashish Mishra ,  Vikash Kumar

IPC: H04N19/625 ,  H04N19/423 ,  H04N19/44 ,  H04N19/61 ,  G06F17/16 ,  H04N19/91

CPC classification number: H04N19/625 ,  G06F17/16 ,  H04N19/423 ,  H04N19/427 ,  H04N19/44 ,  H04N19/61 ,  H04N19/91

Abstract: As the quality and quantity of shared video content increases, video encoding standards and techniques are being developed and improved to reduce bandwidth consumption over telecommunication and other networks. One such technique for compressing videos involves transforming image data into an alternate, encoding-friendly domain (e.g., by a two-dimensional discrete cosine transform). Transform modules may be implemented to perform these transformations, which may occur during both video encoding and decoding processes. Provided are exemplary techniques for improving the efficiency and performance of transform module implementations.

Abstract translation: 随着共享视频内容的质量和数量的增加，正在开发和改进视频编码标准和技术，以减少电信和其他网络的带宽消耗。 用于压缩视频的一种这样的技术涉及将图像数据变换成替代的编码友好域（例如，通过二维离散余弦变换）。 可以实现变换模块以执行这些转换，这可能在视频编码和解码过程中发生。 提供了用于提高变换模块实现的效率和性能的示例性技术。

公开(公告)号：US20160100191A1

公开(公告)日：2016-04-07

申请号：US14503669

申请日：2014-10-01

Applicant: QUALCOMM Incorporated

Inventor： Ashish Mishra ,  Arindam Mohanta

IPC: H04N19/61 ,  H04N19/593 ,  H04N19/176 ,  H04N19/146 ,  H04N19/52 ,  H04N19/119

CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/146 ,  H04N19/176 ,  H04N19/182 ,  H04N19/436 ,  H04N19/52 ,  H04N19/593 ,  H04N19/82

Abstract: As the quality and quantity of shared video content increases, video encoding standards and techniques are being developed and improved to reduce bandwidth consumption over telecommunication and other networks. One technique to reduce bandwidth consumption is intra-prediction, which exploits spatial redundancies within video frames. Each video frame may be segmented into blocks, and intra-prediction may be applied to the blocks. However, intra-prediction of some blocks may rely upon the completion (e.g., reconstruction) of other blocks, which can make parallel processing challenging. Provided are exemplary techniques for improving the efficiency and throughput associated with the intra-prediction of multiple blocks.

Abstract translation: 随着共享视频内容的质量和数量的增加，正在开发和改进视频编码标准和技术，以减少电信和其他网络的带宽消耗。 降低带宽消耗的一种技术是帧内预测，​​其利用视频帧内的空间冗余。 每个视频帧可以被分割成块，并且帧内预测可以应用于块。 然而，一些块的帧内预测可能依赖于其他块的完成（例如，重构），这使得并行处理具有挑战性。 提供了用于提高与多个块的帧内预测相关联的效率和吞吐量的示例性技术。

公开(公告)号：US10580112B2

公开(公告)日：2020-03-03

申请号：US16046785

申请日：2018-07-26

Applicant: QUALCOMM Incorporated

Inventor： Sandeep Nellikatte Srivatsa ,  Anish Kumar ,  Vikash Kumar ,  Ashish Mishra

IPC: G09G5/393 ,  G06T1/60 ,  H04N21/426 ,  G06T1/20 ,  H04N21/443 ,  H04N19/423

Abstract: Certain aspects of the present disclosure provide techniques for scalably and efficiently converting linear image data into multi-dimensional image data for multimedia applications. In one example, a method for managing image data includes receiving a line of image data in a linear format via a system bus of width T, wherein the image data's native format is a tile format of H lines per tile; forming H subsets of image data from the line of image data in the linear format; writing the H subsets of image data to a memory comprising BN=H banks of BW=T/BN pixel width, wherein each subset of the H subsets is written to a different bank of the BN banks; and outputting the H subsets of image data in the tile format.

公开(公告)号：US12132928B2

公开(公告)日：2024-10-29

申请号：US17929548

申请日：2022-09-02

Applicant: QUALCOMM Incorporated

Inventor： Gopi Madhan Dabbadi ,  Yasutomo Matsuba ,  Sandeep Nellikatte Srivatsa ,  Ashish Mishra

IPC: H04N19/513 ,  H04N19/433 ,  H04N19/55 ,  H04N19/573

CPC classification number: H04N19/521 ,  H04N19/433 ,  H04N19/55 ,  H04N19/573

Abstract: Systems and techniques are provided for processing video data. For example, an apparatus may obtain one or more first sets of collocated motion vector data and one or more second sets of collocated motion vector data, associated with a respective first and second block of video data included in a current frame of video data. The apparatus may project the one or more first sets of collocated motion vector data into a first projected motion field associated with a first buffer and project the one or more second sets of collocated motion vector data into the first projected motion field associated with the first buffer. Based on projecting the one or more first sets and one or more second sets of collocated motion vector data, the apparatus may decode the first block of video data based on the first projected motion field associated with the first buffer.