公开(公告)号：US20150071363A1

公开(公告)日：2015-03-12

申请号：US14539423

申请日：2014-11-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lina SUN ,  Shan GAO ,  Fuzheng YANG

IPC: H04N19/85 ,  H04N19/124

CPC classification number: H04N19/85 ,  H04N17/004 ,  H04N19/124 ,  H04N19/154

Abstract: Embodiments of the present invention provide a method and an apparatus for assessing video quality. The method includes: determining an actual quantization parameter and a critical quantization parameter of the target video according to a target video, where the critical quantization parameter is a maximum quantization parameter of the target video in a case in which a distortion is not evidently identifiable by human eyes; and determining quality of the target video according to the actual quantization parameter and the critical quantization parameter. According to the method and apparatus of the present invention, a critical quantization parameter of a target video is determined, and the actual quantization parameter is compared with the critical quantization parameter, which can accurately determine whether subjective quality of the target video changes strictly monotonically relative to the used actual quantization parameter, so that the video quality can be assessed accurately.

Abstract translation: 本发明的实施例提供了一种用于评估视频质量的方法和装置。 该方法包括：根据目标视频确定目标视频的实际量化参数和关键量化参数，其中临界量化参数是目标视频的最大量化参数，在失真不能被明显识别的情况下 人眼 以及根据实际量化参数和临界量化参数确定目标视频的质量。 根据本发明的方法和装置，确定目标视频的临界量化参数，并将实际的量化参数与临界量化参数进行比较，这可以准确地确定目标视频的主观质量是否严格单调变化 到使用的实际量化参数，使得可以准确地评估视频质量。

公开(公告)号：US20220150433A1

公开(公告)日：2022-05-12

申请号：US17582358

申请日：2022-01-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yifan FU ,  Shan GAO ,  Jiantong ZHOU ,  Jing XIAO

IPC: H04N5/378 ,  H04N5/3745 ,  H04N5/351

Abstract: This application provides a pixel collection circuit comprising an optical-to-electrical converter circuit configured to convert a collected optical signal into an analog signal; an analog-to-digital converter circuit configured to: receive the analog signal from the optical-to- electrical converter circuit; and perform analog-to-digital conversion on the analog signal to obtain a digital signal; a differential circuit configured to: receive the digital signal from the analog-to-digital converter circuit; and obtain a difference signal between a digital signal of a previous triggering moment and the digital signal of a current triggering moment; the previous triggering moment and the current triggering moment are determined by at least a digital clock signal; a comparison circuit configured to receive the difference signal from the differential circuit, and output a pulse signal. A digital component is used to implement the pixel collection circuit in the dynamic vision sensor, so as to reduce noise, reduce interference, and facilitate debugging.

公开(公告)号：US20150097971A1

公开(公告)日：2015-04-09

申请号：US14570992

申请日：2014-12-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Shan GAO ,  Lina SUN ,  Qingpeng XIE

IPC: H04N17/00

CPC classification number: H04N17/004 ,  H04N19/154 ,  H04N21/2402

Abstract: Embodiments of the present invention provide a multimedia quality monitoring method, and a device. The method includes: determining reference quality of multimedia according to reference video quality and reference audio quality of the multimedia; acquiring multimedia distortion quality that is after video distortion and/or audio distortion of the multimedia occur/occurs; and determining quality of the multimedia according to the reference quality of the multimedia and the multimedia distortion quality. Therefore, accuracy of a multimedia quality monitoring result is improved.

Abstract translation: 本发明的实施例提供一种多媒体质量监测方法和装置。 该方法包括：根据多媒体的参考视频质量和参考音频质量确定多媒体的参考质量; 获取在出现/发生多媒体视频失真和/或音频失真之后的多媒体失真质量; 并根据多媒体的参考质量和多媒体失真质量确定多媒体的质量。 因此，提高了多媒体质量监控结果的准确性。

公开(公告)号：US20210006839A1

公开(公告)日：2021-01-07

申请号：US17025246

申请日：2020-09-18

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xiaomu LU ,  Jianle CHEN ,  Shan GAO ,  Haitao YANG

IPC: H04N19/82 ,  H04N19/176

Abstract: Embodiments of this application disclose a picture filtering method and apparatus, and a video codec, relate to the field of video coding technologies, and may be applied to, for example, but is not limited to, a deblocking filtering scenario, to help improve video coding performance. The picture filtering method may include: determining, based on dimension information of a to-be-filtered current picture block, a target filter used to filter the current picture block, where the dimension information of the current picture block includes the width or height of the current picture block; and performing filtering processing on the current picture block by using a target filter. The technical solutions disclosed in the embodiments of this application are applicable to a next-generation video coding technology.

公开(公告)号：US20150035996A1

公开(公告)日：2015-02-05

申请号：US14518164

申请日：2014-10-20

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Shan GAO ,  Lina SUN ,  Qingpeng XIE

IPC: H04N17/00 ,  H04N21/234 ,  H04N7/64 ,  H04N17/02 ,  H04N21/44

CPC classification number: H04N17/004 ,  H04N17/02 ,  H04N19/89 ,  H04N21/23418 ,  H04N21/44008

Abstract: In a method for evaluating media quality, media reference quality and rebuffering event distortion quality are obtained, final media quality are determined according to the obtained media reference quality and rebuffering event distortion quality, where a parameter of the rebuffering event distortion quality includes at least one of the following: the number of rebuffering events, a duration of the rebuffering event, a multiple rebuffering event interaction impact parameter, initial media quality, and a factor describing media content complexity. When media quality is calculated, impact of the multiple rebuffering event interaction impact parameter, the initial media quality, and the factor describing media content complexity on the media quality is considered, thereby making a media quality evaluation result more accurate.

Abstract translation: 在评估媒体质量的方法中，获得媒体参考质量和回退事件失真质量，根据所获得的媒体参考质量和再生事件失真质量来确定最终媒体质量，其中，回退事件失真质量的参数包括至少一个 以下内容：重新绑定事件的数量，重新绑定事件的持续时间，多重缓冲事件交互影响参数，初始媒体质量以及描述媒体内容复杂性的因素。 当媒体质量得到计算时，考虑到多重回滚事件交互影响参数的影响，初始媒体质量以及描述媒体内容对媒体质量复杂度的因素，从而使媒体质量评估结果更准确。

公开(公告)号：US20150009406A1

公开(公告)日：2015-01-08

申请号：US14492508

申请日：2014-09-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Lina SUN ,  Shan GAO ,  Qingpeng XIE

IPC: H04L29/06 ,  H04N9/64

CPC classification number: H04L65/80 ,  H04N9/64 ,  H04N17/004

Abstract: The present invention discloses a method and an apparatus for evaluating multimedia quality. The method includes: obtaining reference quality of a video and final quality of the video of a multimedia sequence, and reference quality of an audio and final quality of the audio of the multimedia sequence; determining reference quality of the multimedia sequence; determining a distortion value of the multimedia sequence according to the reference quality of the video, the final quality of the video, the reference quality of the audio, and the final quality of the audio; and determining multimedia quality of the multimedia sequence according to the reference quality of the multimedia sequence and the distortion value of the multimedia sequence. The method and apparatus for evaluating multimedia quality can directly reflect distortion of a multimedia sequence, accord with a subjective feeling of a person, and therefore can accurately and effectively evaluate the multimedia quality.

Abstract translation: 本发明公开了一种评估多媒体质量的方法和装置。 该方法包括：获得视频的参考质量和多媒体序列的视频的最终质量，以及多媒体序列的音频的音频和最终质量的参考质量; 确定多媒体序列的参考质量; 根据视频的参考质量，视频的最终质量，音频的参考质量以及音频的最终质量确定多媒体序列的失真值; 以及根据多媒体序列的参考质量和多媒体序列的失真值确定多媒体序列的多媒体质量。 用于评估多媒体质量的方法和装置可以直接反映多媒体序列的失真，符合人的主观感觉，因此可以准确有效地评估多媒体质量。

公开(公告)号：US20200304801A1

公开(公告)日：2020-09-24

申请号：US16894268

申请日：2020-06-05

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shan GAO ,  Weiwei XU ,  Huanbang CHEN ,  Haitao YANG

IPC: H04N19/139 ,  H04N19/56 ,  H04N19/573 ,  H04N19/176

Abstract: An inter prediction method includes parsing, by a processor, a bitstream to obtain a location of a target adjacent image block of a current image block. The method further includes obtaining a preset correspondence between an adjacent image block location and a motion vector precision, wherein in the preset correspondence, locations of at least two adjacent image blocks correspond to different motion vector precisions. The method further includes determining, based on the location of the target adjacent image block and the preset correspondence, a target motion vector precision corresponding to the target adjacent image block. The method further includes determining a motion vector predictor of the current image block based on the location of the target adjacent image block and the target motion vector precision.

公开(公告)号：US20190273950A1

公开(公告)日：2019-09-05

申请号：US16233932

申请日：2018-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zhao WANG ,  Siwei MA ,  Shan GAO ,  Haitao YANG

IPC: H04N19/96 ,  H04N19/176

Abstract: A decoding method includes: parsing a data stream, and if partitioning an image block with a size of 2N×2N using a quadtree partition pattern is allowed, processing a 2N×N first subimage block and a 2N×2N second subimage block or an N×2N first subimage block and an N×2N second subimage block in a constraint subimage processing mode, wherein an image block partition pattern obtained for the partitioned second subimage block and the partitioned first subimage block is different from an image block partition pattern obtained after the 2N×2N image block is partitioned using the quadtree partition pattern, where the 2N×N first subimage block and the 2N×N second subimage block or the N×2N first subimage block and the N×2N second subimage block are obtained by partitioning the image block with the size of 2N×2N .

公开(公告)号：US20160140724A1

公开(公告)日：2016-05-19

申请号：US14941475

申请日：2015-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Mengqi JI ,  Shan GAO ,  Haiyan YANG

IPC: G06T7/00

CPC classification number: G06T7/11 ,  G06K9/38 ,  G06K9/62 ,  G06K9/6277 ,  G06T7/136 ,  G06T7/143 ,  G06T7/194 ,  G06T2207/10024

Abstract: Embodiments of the present invention provide an image processing method and apparatus, where the method includes: determining a Gaussian mixture model of a first area in a first image, where the first area belongs to a background area of the first image, and the first image is a first frame of image in a video; determining a distance from a first pixel in a second image to the Gaussian mixture model; and when the distance from the first pixel to the Gaussian mixture model is less than or equal to a first preset threshold, determining that the first pixel belongs to a background area of the second image. In the embodiments of the present invention, an area to which a pixel belongs can be directly determined according to a distance from the pixel to a Gaussian mixture model, so that image foreground segmentation can be completed efficiently.

Abstract translation: 本发明的实施例提供了一种图像处理方法和装置，其中所述方法包括：确定第一图像中的第一区域的高斯混合模型，其中第一区域属于第一图像的背景区域，第一图像 是视频中第一帧图像; 确定从第二图像中的第一像素到高斯混合模型的距离; 并且当从第一像素到高斯混合模型的距离小于或等于第一预设阈值时，确定第一像素属于第二图像的背景区域。 在本发明的实施例中，可以根据从像素到高斯混合模型的距离直接确定像素所属的区域，从而可以有效地完成图像前景分割。

公开(公告)号：US20230361082A1

公开(公告)日：2023-11-09

申请号：US18341880

申请日：2023-06-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Shan GAO ,  Jifeng ZHU ,  Dian LEI

IPC: H01L25/065 ,  H01L23/00 ,  H01L25/00

CPC classification number: H01L25/0657 ,  H01L24/32 ,  H01L24/16 ,  H01L24/73 ,  H01L25/50 ,  H01L2225/06541 ,  H01L2224/32146 ,  H01L2224/16146 ,  H01L2224/73253 ,  H01L2924/37001

Abstract: A chip stacking structure includes a plurality of chips that are sequentially stacked and a first redistribution layer arranged on an active side of each chip. The plurality of chips include a first chip and a second chip that are located on an outermost side. Passive sides of the first chip and the second chip both face an outer side, and the chip stacking structure further includes a second redistribution layer arranged on the passive side of the first chip or the second chip. The second redistribution layer is electrically connected to at least one first redistribution layer through a first via hole.