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公开(公告)号：US20220263989A1
公开(公告)日：2022-08-18
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
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：US20220329735A1
公开(公告)日：2022-10-13
申请号：US17852585
申请日：2022-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Qingping WANG , Chen SU , Shisheng ZHENG
Abstract: A photographing method, a camera module, and an electronic device relate to the field of photographing technologies and implement a zoom function and reduce hardware costs. The camera module includes a first optical path switching element, a first optical steering element, a first fixed-focus lens group, a second fixed-focus lens group, and an image sensor. The first optical path switching element whose position or working state is variable is configured to change an optical path of the first beam from the first fixed-focus lens group, the first beam with the optical path changed is directed to the image sensor, or the second beam with the optical path changed is directed to the image sensor. The image sensor is configured to receive the first beam with the optical path changed or receive the second beam with the optical path changed, and generate an image.
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公开(公告)号：US20240031675A1
公开(公告)日：2024-01-25
申请号：US18476027
申请日：2023-09-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jingduo TIAN , Xiaoe WANG , Chen YANG , Jinlei ZHANG , Tizheng WANG , Shisheng ZHENG
CPC classification number: H04N23/683 , G06T5/006 , G06V10/761 , H04N23/69 , G06T2207/20132
Abstract: This application provides an image processing method, including: performing stabilization on two adjacent image frames of a video stream acquired by a camera to obtain cropped areas, and performing perspective distortion correction on the cropped areas obtained through stabilization. Because the cropped areas output after stabilization is performed on the two adjacent frames include same or basically same content, it can be ensured that a subsequently generated video is smooth and stable. In this application, position relationships, for perspective distortion correction, between the cropped areas obtained through stabilization are further mapped, so that degrees or effects of perspective distortion correction of the adjacent frames of the subsequently generated video are the same, in other words, degrees of transformation of a same object in the images are the same.
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公开(公告)号：US20230032520A1
公开(公告)日：2023-02-02
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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