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公开(公告)号：US20220207747A1
公开(公告)日：2022-06-30
申请号：US17698650
申请日：2022-03-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chen Su , Huanwen Peng , Shuiran Peng , Yihua Zeng , Shisheng Zheng
Abstract: This application provides an image distortion correction method and an apparatus. The method includes: performing optical distortion correction on a collected source image, to obtain a first corrected image, where the first corrected image includes a background region and a portrait in which stretching deformation occurs, and the portrait in which stretching deformation occurs includes at least a first human body region in which stretching deformation occurs and a second human body region in which stretching deformation occurs; and performing algorithm constraint correction on the first human body region, the second human body region, and the background region, to obtain a second corrected image, where constraint terms used for the algorithm constraint correction respectively constrain the first human body region, the second human body region, and the background region.
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Patent Agency Ranking
公开(公告)号：US10552971B2
公开(公告)日：2020-02-04
申请号：US15561287
申请日：2015-05-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xinggang Gu , Shaojun Chen , Shisheng Zheng
Abstract: A method can measure the size of an object using a terminal having two cameras. The method includes obtaining, by a terminal using a first camera, a first image that includes a to-be-measured object, and obtaining, using a second camera, a second image that includes the to-be-measured object, where the first camera and the second camera are disposed in a same plane. The method also includes comparing locations of the to-be-measured object in the first image and in the second image, so as to obtain a total location offset of the to-be-measured object. Additionally, the method includes receiving a measurement point selection instruction entered by a user based on the first image, and calculating a distance between selected measurement points according to the total location offset, a distance between a center of the first camera and a center of the second camera, and a focal length of the first camera.
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公开(公告)号：US20230162332A1
公开(公告)日：2023-05-25
申请号：US18147391
申请日：2022-12-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chen Yang , Xiaoe Wang , Tizheng Wang , Chen Su , Zhaolei Xiao , Jingduo Tian , Shisheng Zheng
CPC classification number: G06T5/006 , G06T17/00 , G06T19/20 , H04N23/632 , G06T2219/2004 , G06T2219/2021 , G06T2200/24 , G06T2207/30201
Abstract: An image transformation method includes obtaining a first image for a target scenario by using a front-facing camera, where the target scenario includes a face of a target person; obtaining a target distance between the face of the target person and the front-facing camera; and when the target distance is less than a preset threshold, performing first processing on the first image to obtain a second image. The first processing includes performing distortion correction on the first image based on the target distance. The face of the target person in the second image is closer to a real appearance of the face of the target person than the face of the target person in the first image.
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公开(公告)号：US12108161B2
公开(公告)日：2024-10-01
申请号：US17965083
申请日：2022-10-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolei Chen , Jinxin Huang , Changcai Lai , Hongqi Hu , Changjiu Yang , Shisheng Zheng
Abstract: This application discloses a photographing apparatus and method, and relates to the field of image processing. When a high-quality image in a low illumination environment is obtained, costs are reduced, a size is reduced, and product compatibility is improved. The method includes: controlling a light filtering unit to: transparently transmit visible light in incident light and block infrared light in the incident light in a first image exposure interval, transparently transmit the infrared light in the incident light in a first time period of a second image exposure interval, and block the incident light in a second time period of the second image exposure interval; performing, by using an image sensor to obtain a first image, and performing photoelectric imaging on a light ray to obtain a second image; and synthesizing the first image and the second image, to generate a first target image.
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公开(公告)号：US11930260B2
公开(公告)日：2024-03-12
申请号：US17730426
申请日：2022-04-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qingping Wang , Hongqi Hu , Ruihua Li , Changcai Lai , Shisheng Zheng , Yanlin Song
CPC classification number: H04N23/55 , G02B5/0883 , G02F1/163 , G03B19/12
Abstract: An optical path switching method is applied to a surveillance module. The method includes: determining a target magnification; and (i) when the target magnification is less than or equal to a maximum magnification of a camera, setting a magnification of the camera to the target magnification, determining that a reflection element is at a first location or in a first working state, and performing image capture by using the camera alone; or (ii) when the target magnification is greater than a maximum magnification of the camera, setting a magnification of the camera to a first magnification, determining that the reflection element is at a second location or in a second working state, and performing image capture by using both the camera and a teleconverter, where a product of the first magnification and a magnification of the teleconverter is the target magnification. The method increases a surveillance distance while reducing costs.
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公开(公告)号：US20180130219A1
公开(公告)日：2018-05-10
申请号：US15561287
申请日：2015-05-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xinggang Gu , Shaojun Chen , Shisheng Zheng
CPC classification number: G06T7/593 , G01B11/02 , G06T7/62 , G06T2207/10012 , G06T2207/10028 , G06T2207/20101
Abstract: A method can measure the size of an object using a terminal having two cameras. The method includes obtaining, by a terminal using a first camera, a first image that includes a to-be-measured object, and obtaining, using a second camera, a second image that includes the to-be-measured object, where the first camera and the second camera are disposed in a same plane. The method also includes comparing locations of the to-be-measured object in the first image and in the second image, so as to obtain a total location offset of the to-be-measured object. Additionally, the method includes receiving a measurement point selection instruction entered by a user based on the first image, and calculating a distance between selected measurement points according to the total location offset, a distance between a center of the first camera and a center of the second camera, and a focal length of the first camera.
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