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1. 发明公开

EP3849168A1 DYNAMIC VISION SENSOR 审中-实审
公开(公告)号：EP3849168A1
公开(公告)日：2021-07-14
申请号：EP19864611.9
申请日：2019-09-10
申请人： HUAWEI TECHNOLOGIES CO., LTD.
发明人： XIAO, Zhaolei , ZHOU, Jiantong , FANG, Yuntan , GAO, Shan , WU, Zhenhua , XIAO, Jing
IPC分类号： H04N5/225
摘要： This application provides a dynamic vision sensor. The sensor converts an optical signal into an electrical signal by using a photoelectric conversion unit, to generate a photovoltage; performs second-order difference on the photovoltage by using a second-order differential circuit; and generates a second-order event signal based on a result of second-order difference. A camera including the sensor can generate an image based on the second-order event signal, where the image represents a change of a light change speed. In this way, redundant background information can be reduced when the camera is moving.

2. 发明授权

EP3051773B1 MULTI-PATH AUXILIARY STREAM CONTROL METHOD, CONTROL DEVICE, NODE AND SYSTEM 有权
公开(公告)号：EP3051773B1
公开(公告)日：2020-09-16
申请号：EP13896107.3
申请日：2013-10-25
申请人： Huawei Technologies Co., Ltd.
发明人： XIAO, Jing , WANG, Jing , WU, Jiaoli
IPC分类号： H04L29/08 , H04L29/06 , H04N7/15

3. 发明公开

EP2765769A1 IMAGE PROCESSING METHOD AND IMAGE PROCESSING DEVICE 审中-公开
标题翻译：图像处理方法和图像处理设备
公开(公告)号：EP2765769A1
公开(公告)日：2014-08-13
申请号：EP12884091.5
申请日：2012-09-10
申请人： Huawei Technologies Co., Ltd
发明人： XIAO, Jing , WANG, Jing
IPC分类号： H04N5/262
CPC分类号： H04N7/15 , H04N5/23238 , H04N5/262 , H04N7/142
摘要： Embodiments of the present invention provide an image processing method and an image processing device. The image processing method includes: determining a first width and a second width, where the second width is the width of a gap between display devices of target images on N screens, the first width is the width of a blind spot between source images corresponding to the N screens, N is an integer greater than 1, and the N screens are of a same size and are arranged side by side at a same height; and when the first width is different from the second width, adjusting the source images according to the determined first width and second width so as to obtain the target images, so that no mismatch exists in the stitched target images on the N screens. According to the embodiments of the present invention, the width of a blind spot between source images and the width of a gap between display devices of target images are acquired, and the source images are adjusted according to the acquired width values so as to obtain stitched target images without a mismatch, thereby improving a sense of reality of telepresence.
摘要翻译：本发明的实施例提供图像处理方法和图像处理装置。该图像处理方法包括：确定第一宽度和第二宽度，其中第二宽度是N个屏幕上的目标图像的显示设备之间的间隙的宽度，第一宽度是源图像之间的对应于 N个屏幕，N为大于1的整数，N个屏幕大小相同，并排排列在同一高度; 当所述第一宽度不同于所述第二宽度时，根据确定的所述第一宽度和所述第二宽度调整所述源图像，以获得所述目标图像，以使得所述N个屏幕上的所述拼接的目标图像中不存在失配。根据本发明的实施例，获取源图像之间的盲区的宽度和目标图像的显示装置之间的间隙的宽度，并且根据获取的宽度值来调整源图像以获得缝合目标图像没有不匹配，从而提高了网真的真实感。

4. 发明公开

EP3993384A1 PIXEL ACQUISITION CIRCUIT, DYNAMIC VISION SENSOR, AND IMAGE ACQUISITION APPARATUS 审中-实审
公开(公告)号：EP3993384A1
公开(公告)日：2022-05-04
申请号：EP20847374.4
申请日：2020-07-06
申请人： Huawei Technologies Co., Ltd.
发明人： FU, Yifan , GAO, Shan , ZHOU, Jiantong , XIAO, Jing
IPC分类号： H04N5/217 , H04N5/341
摘要： This application provides a pixel collection circuit, a dynamic vision sensor, and an image capture device. The pixel collection circuit includes an optical-to-electrical converter circuit, an analog-to-digital converter circuit, a differential circuit, and a comparison circuit. The optical-to-electrical converter circuit is configured to convert a collected optical signal into an analog signal. The analog-to-digital converter circuit is 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. The differential circuit is 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. The comparison circuit is configured to receive the difference signal from the differential circuit, and output a pulse signal. In this application, 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.

5. 发明公开

EP3923562A1 ELECTRONIC DEVICE AND IMAGE PROCESSING METHOD 审中-实审
公开(公告)号：EP3923562A1
公开(公告)日：2021-12-15
申请号：EP20848121.8
申请日：2020-04-08
申请人： Huawei Technologies Co., Ltd.
发明人： XIAO, Jing , DING, Jianxin
IPC分类号： H04N5/225
摘要： Embodiments of this application provide an electronic device and a picture processing method. The electronic device includes a rear cover, a front-facing camera, a rear-facing camera, and a light reflective apparatus. The light reflective apparatus may be switched between a usage state and an idle state. The picture processing method includes: controlling the light reflective apparatus to switch from the idle state to the usage state, when an operation that a user enables the front-facing camera is detected, where the usage state of the light reflective apparatus indicates that the light reflective apparatus is located on an object-facing side of the rear-facing camera and is configured to reflect a picture in a direction in which the front-facing camera is located, so that the rear-facing camera captures the picture reflected by the light reflective apparatus; separately obtaining a picture captured by the front-facing camera and a picture captured by the rear-facing camera; processing the picture captured by the rear-facing camera; and fusing the picture captured by the front-facing camera and a picture obtained by processing the picture captured by the rear-facing camera. In this application, a field of view of a picture taken by the front-facing camera can be increased with relatively low costs.

6. 发明公开

EP2966816A1 METHOD AND RELATED DEVICE FOR ADJUSTING TRANSMISSION BANDWIDTH OF MEDIA STREAM 有权
标题翻译：方法及相应设备用于调整的媒体流的传输带宽
公开(公告)号：EP2966816A1
公开(公告)日：2016-01-13
申请号：EP13882078.2
申请日：2013-10-17
申请人： Huawei Technologies Co., Ltd.
发明人： XIAO, Jing , YANG, Weiwei , WEI, Haitao , REN, Jungang
IPC分类号： H04L12/911
CPC分类号： H04L47/11 , H04L47/2416 , H04L65/80 , H04N21/2385 , H04N21/2402 , H04N21/637 , H04N21/6437
摘要： The present invention discloses a method for adjusting media stream transmission bandwidth and a related apparatus. A media stream sending end acquires scores that are given, according to identifiers of multiple media streams, by a media stream receiving end to the media streams, where the multiple media streams are transmitted at a same transmission port, and these identifiers are described based media stream content; when it is detected that congestion occurs or congestion is resolved, the media stream sending end performs transmission bandwidth adjustment on a corresponding media stream according to these scores, and therefore media stream transmission bandwidth adjustment may be performed, based on the media stream content, on the multiple media streams transmitted at the same transmission port.
摘要翻译：本发明盘松动用于调整媒体流传输带宽和相关设备的方法。媒体流发送端取得的分数没有给出，雅丁到多个媒体流的标识，由媒体流接收端的媒体流，其中所述多个媒体流是在一个相同的传输端口反mitted，和合成标识符描述的基于媒体流内容; 当检测没有拥塞的发生或拥塞得到解决，所述媒体流发送端上的相应mediastream雅丁到合成分数进行发送带宽调整，因此媒体流传输带宽调整可以基于媒体流内容进行，上多个媒体流同时传输端口反式mitted。

7. 发明公开

EP3890322A1 VIDEO CODER-DECODER AND CORRESPONDING METHOD 审中-公开
公开(公告)号：EP3890322A1
公开(公告)日：2021-10-06
申请号：EP19898034.4
申请日：2019-12-16
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Haitao , ZHAO, Yin , ZHAO, Riyang , LI, Zhongliang , XIAO, Jing
IPC分类号： H04N19/176
摘要： This application relates to the field of video coding technologies, and discloses a video coder and a corresponding method, to help improve video coding performance. In this application, encoding and decoding are collectively referred to as coding. A video coding method includes: determining a block split policy of a current picture block based on a size relationship between the width and the height of the current picture block; applying the block split policy to the current picture block to obtain a coding block; and reconstructing the obtained coding block to reconstruct the current picture block.

8. 发明公开

EP3869504A1 VOICE USER INTERFACE DISPLAY METHOD AND CONFERENCE TERMINAL 无效
公开(公告)号：EP3869504A1
公开(公告)日：2021-08-25
申请号：EP19894084.3
申请日：2019-11-13
申请人： Huawei Technologies Co., Ltd.
发明人： ZHENG, Minghui , XIAO, Jing , WANG, Geng , ZHAO, Guangyao
IPC分类号： G10L15/26
摘要： A voice user interface display method and a conference terminal are provided. The method includes: When voice information input by a user into the conference terminal is received, a voice of the user is collected. A user voice instruction may be obtained based on the voice information input by the user. Identity information of the user may be obtained in real time based on the voice of the user. Further, user interface information that matches the user may be displayed based on the identity information of the user, the user voice instruction, and a current conference status of the conference terminal. The method improves diversity of display of the user interface information, and improving user experience in using the conference system.

9. 发明授权

EP2879379B1 METHODS, DEVICES AND SYSTEM FOR MEDIA NEGOTIATION IN A MULTI-STREAM MEETING 有权
公开(公告)号：EP2879379B1
公开(公告)日：2020-01-22
申请号：EP13834438.7
申请日：2013-06-24
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Weiwei , WEI, Haitao , REN, Jungang , XIAO, Jing
IPC分类号： H04L29/06 , H04N7/15 , H04M3/56

10. 发明授权

EP3054424B1 IMAGE RENDERING METHOD AND APPARATUS 有权
公开(公告)号：EP3054424B1
公开(公告)日：2019-06-05
申请号：EP14863897.6
申请日：2014-04-24
申请人： Huawei Technologies Co., Ltd.
发明人： HUANG, Chuanna , XIAO, Jing , ZHAO, Guangyao
IPC分类号： G06T15/50 , H04N7/15

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