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    Fisheye image compression method, fisheye video stream compression method and panoramic video generation method
    1.
    发明公开
    Fisheye image compression method, fisheye video stream compression method and panoramic video generation method 审中-公开

    公开(公告)号：US20240331202A1

    公开(公告)日：2024-10-03

    申请号：US18577380

    申请日：2022-07-07

    申请人： ARASHI VISION INC.

    发明人： Guo Wang ,  Wenjie Jiang

    IPC分类号： G06T9/00 ,  G06T3/08 ,  G06T3/40 ,  G06T5/50

    CPC分类号： G06T9/00 ,  G06T3/08 ,  G06T3/40 ,  G06T5/50 ,  G06T2207/20221

    摘要： The fisheye image compression method comprises: acquiring positioning information of a render region of a decoding end; identifying a fisheye render region and a fisheye non-render region in fisheye image according to the positioning information, wherein and compressing the fisheye image to obtain a compressed image compression ratio of the fisheye render region in the compressed image is less than the compression ratio of the fisheye non-render region therein, and/or the fisheye render region is not compressed. By means of the method, the image transmission bandwidth can be saved by image compression; moreover, the compression ratio of a compressed fisheye render region is relatively small, or a fisheye render region is subjected to lossless compression, such that a finally rendered picture cannot be excessively compressed, thereby avoiding a reduction in the quality of the picture and ensuring the definition of a picture in a render region.

    Camera
    2.
    外观设计
    Camera 有权

    公开(公告)号：USD1019730S1

    公开(公告)日：2024-03-26

    申请号：US29825254

    申请日：2022-01-30

    申请人： ARASHI VISION INC.

    设计人： Jingkang Liu ,  Lingwu Huang

    摘要： FIG. 1 is a front, bottom and left side perspective view of a camera showing our new design;
    FIG. 2 is a front, top and right side perspective view of FIG. 1;
    FIG. 3 is a front, top and left side perspective view of FIG. 1;
    FIG. 4 is a front elevational view of FIG. 1;
    FIG. 5 is a rear elevational view of FIG. 1;
    FIG. 6 is a left side elevational view of FIG. 1;
    FIG. 7 is a right side elevational view of FIG. 1;
    FIG. 8 is a top plan view of FIG. 1; and,
    FIG. 9 is a bottom plan view of FIG. 1.

    Camera
    4.
    外观设计
    Camera 有权

    公开(公告)号：USD998678S1

    公开(公告)日：2023-09-12

    申请号：US35515384

    申请日：2022-09-29

    申请人： ARASHI VISION INC.

    设计人： Wen Su ,  Jingkang Liu ,  Fei Gao ,  Meihua Cao

    摘要： 1. Camera
    1.1 : Front
    1.2 : Back
    1.3 : Left
    1.4 : Right
    1.5 : Top
    1.6 : Bottom
    1.7 : Perspective
    The broken lines depict portions of the camera in which the design is embodied that form no part of the claimed design.

    Anti-shake method for panoramic video, and portable terminal
    5.
    发明授权
    Anti-shake method for panoramic video, and portable terminal 有权

    公开(公告)号：US11388339B2

    公开(公告)日：2022-07-12

    申请号：US16981688

    申请日：2019-03-15

    申请人： ARASHI VISION INC.

    发明人： Cong Chen ,  Jingkang Liu ,  Wenjie Jiang ,  Yibin Guo

    IPC分类号： H04N5/225 ,  H04N5/232 ,  G03B37/00 ,  G06T5/00

    摘要： The present invention provides an anti-shake method for a panoramic video, which comprises: obtaining, in real time, an output video frame, a fisheye image corresponding thereto, a pixel timestamp in the video frame, and a corresponding camera gyroscope timestamp; synchronizing the pixel timestamp in the video frame with the corresponding camera gyroscope timestamp, and calculating a rotation matrix of the camera movement in the camera gyroscope timestamp; smoothing the camera movement and establishing a coordinate system of a smooth trajectory; correcting the fisheye image distortion; and rendering the fisheye image by means of forward rendering to generate a stable video. According to the present invention, the rolling shutter distortion of a panoramic video sequence can be corrected, the image distortion caused by the rolling shutter of a CMOS can be corrected, and the rolling shutter is eliminated, thereby achieving a better anti-shake effect of a video image.

    METHOD FOR TRACKING TARGET IN PANORAMIC VIDEO, AND PANORAMIC CAMERA
    7.
    发明申请
    METHOD FOR TRACKING TARGET IN PANORAMIC VIDEO, AND PANORAMIC CAMERA 有权

    公开(公告)号：US20210227132A1

    公开(公告)日：2021-07-22

    申请号：US15733866

    申请日：2019-05-16

    申请人： ARASHI VISION INC.

    发明人： JINLIN CAI ,  WENJIE JIANG ,  CONG CHEN

    IPC分类号： H04N5/232

    摘要： The present invention relates to the field of panoramic cameras, and provides a method for tracking a target in a panoramic video, and a panoramic camera. The method is used to track a target in a panoramic video on the basis of a multi-scale correlation filter, and employs automatic electronic pan-tilt-zoom technology. The present invention provides more robust tracking, faster processing speeds, a greater range of application in different tracking scenarios, and can be used to ensure that a tracked target is always at the center of the screen.

    Method and system for panoramic video stabilization, and portable terminal
    8.
    发明授权
    Method and system for panoramic video stabilization, and portable terminal 有权

    公开(公告)号：US10812718B2

    公开(公告)日：2020-10-20

    申请号：US16481454

    申请日：2018-02-05

    申请人： ARASHI VISION INC.

    发明人： Jinlin Cai ,  Wenjie Jiang ,  Jingkang Liu

    IPC分类号： H04N5/232 ,  G06T7/277 ,  G06T3/60

    摘要： The present application is applicable in the field of videos. Provided are a method and system for panoramic video stabilization, and a portable terminal. The method comprises: acquiring in real time the timestamp of a current state, an accelerometer count value, and an angular velocity value of a portable terminal; estimating the rotation vector of the current state by utilizing an Extended Kalman Filtering combined with the accelerometer count value and the angular velocity value; calculating a current rotation matrix via the Rodrigues' rotation formula on the basis of the rotation vector of the current state; and rotating a panoramic image on the basis of the current rotation matrix and producing a stabilized video frame. The present invention allows the stabilization of a jittering video frame and alleviates VR motion sickness.