公开(公告)号：EP4373122A2

公开(公告)日：2024-05-22

申请号：EP24164298.2

申请日：2020-04-24

申请人： Microsoft Technology Licensing, LLC

发明人： LEI, Maria Cheng ,  JAIN, Vishal ,  DANGI, Vikramaditya

IPC分类号： H04N23/67

CPC分类号： G06F3/011 ,  G06F3/012 ,  G06F3/017 ,  G03B13/36 ,  G02B27/017 ,  H04N23/675 ,  H04N23/67 ,  H04N23/60

摘要： An adjustable-focus PV (picture/video) camera in a mixed-reality head-mounted display (HMD) device operates with an auto-focus subsystem that is configured to be triggered based on location and motion of a user's hands to reduce the occurrence of auto-focus hunting during camera operations. The HMD device is equipped with a depth sensor that is configured to capture depth data from the surrounding physical environment to detect and track the user's hand location, movements, and gestures in three-dimensions. The hand tracking data from the depth sensor may be assessed to determine hand characteristics - such as which of the user's hands or part of a hand is detected, its size, motion, speed, etc. - within a particular region of interest (ROI) in the field of view of the PV camera. The auto-focus subsystem uses the assessed hand characteristics as an input to control auto-focus of the PV camera to reduce auto-focus hunting occurrences.

公开(公告)号：EP4369247A1

公开(公告)日：2024-05-15

申请号：EP22837030.0

申请日：2022-07-07

申请人： Hangzhou Hikrobot Co., Ltd.

发明人： JIN, Yiming

IPC分类号： G06K7/10 ,  H04N17/00

CPC分类号： G02B7/08 ,  G02B7/36 ,  G03B13/36 ,  H04N23/67 ,  H04N23/673 ,  G06K7/10811 ,  G06K7/1417

摘要： The embodiments of the present application disclose a focusing method, apparatus, and storage medium, belonging to the technical field of image acquisition. In the embodiments of the present application, automatic focusing is performed according to the image sharpness scores and code reading scores of the lens of the code reading camera at different positions. Since the code reading scores can characterize the code reading success rate of the code reading camera, the embodiments of the present application actually evaluates the focusing effect of the lens at different positions by combining the image sharpness and code reading effect of the code reading camera, to determine the optimal position of the lens and further complete automatic focusing. This not only ensures the sharpness of the image acquired by the code reading camera after focusing is completed, but can also ensure the code reading success rate of the code reading camera after focusing is completed.