公开(公告)号：US12289536B2

公开(公告)日：2025-04-29

申请号：US17992801

申请日：2022-11-22

Applicant: INVENSENSE, INC.

Inventor： Sebastien Riccardi ,  Pierre Grenet ,  Jerome Lachaux

IPC: H04N23/80 ,  H04N23/68 ,  H04N23/81

Abstract: Systems and methods are disclosed for capturing stabilized images. Motion of the mobile device is determined so that the relative position of the lens and image sensor may be adjusted to compensate for unintended motion. The relative position of the lens and image sensor may be periodically reset in response to a synchronization signal in between capturing images.

公开(公告)号：US11381745B2

公开(公告)日：2022-07-05

申请号：US16752009

申请日：2020-01-24

Applicant: InvenSense, Inc.

Inventor： Pierre Grenet ,  Sebastien Riccardi ,  Joe Youssef

IPC: H04N5/232 ,  G06T7/80 ,  G06T7/20

Abstract: Systems and methods of correcting for signal drift in optical image stabilization of a portable device. An accelerometer is used to obtain an acceleration signal corresponding to acceleration of the portable device. A gravity component is removed from the accelerometer signal to obtain a proper acceleration signal. A double integration is performed on the proper acceleration signal to obtain a translation signal. A drift component of the translation signal is estimated. The estimated drift component is used to generate a drift correction signal. A phase compensation signal is determined based on a plurality of phase responses of a plurality of components of the optical image stabilization system. The drift correction signal and the phase compensation signal are applied to an actuator controller which controls movement of a lens within the portable device as part of the process for optical image stabilization.

公开(公告)号：US20230199326A1

公开(公告)日：2023-06-22

申请号：US17992801

申请日：2022-11-22

Applicant: INVENSENSE, INC.

Inventor： Sebastien Riccardi ,  Pierre Grenet ,  Jerome Lachaux

IPC: H04N5/228

CPC classification number: H04N23/80 ,  H04N23/6815 ,  H04N23/6812 ,  H04N23/681 ,  H04N23/81

Abstract: Systems and methods are disclosed for capturing stabilized images. Motion of the mobile device is determined so that the relative position of the lens and image sensor may be adjusted to compensate for unintended motion. The relative position of the lens and image sensor may be periodically reset in response to a synchronization signal in between capturing images.

公开(公告)号：US11412142B2

公开(公告)日：2022-08-09

申请号：US16751908

申请日：2020-01-24

Applicant: InvenSense, Inc.

Inventor： Pierre Grenet

IPC: H04N5/232 ,  G06T7/80 ,  G06T7/20

Abstract: Systems and methods of optically stabilizing an image. A lens obtains optical image information corresponding to an image. An image sensor converts the optical image information into electrical image information. A rotation signal related to rotational movement of a camera unit is generated using a first motion sensor that provides a signal related to rotation when the camera unit is rotated. A translation signal related to translational movement of the camera unit is generated using a second motion sensor that provides a signal related to translation when the camera unit undergoes translational movement. The translation signal is modified using the rotation signal to generate a corrected translation signal that compensates for lens movement which is different from second motion sensor movement. The corrected translation signal controls an actuator that adjusts a lens position with respect to the image sensor, based on rotation and translation experienced by the camera unit.