公开(公告)号：US20230055829A1

公开(公告)日：2023-02-23

申请号：US17892405

申请日：2022-08-22

Applicant: Analog Devices, Inc.

Inventor： Charles MATHY ,  Brian C. DONNELLY ,  Nicolas LE DORTZ ,  Sefa DEMIRTAS

IPC: G06T7/80 ,  G01S7/497 ,  G01S17/89

Abstract: An image processing system having on-the-fly calibration uses the placement of the imaging sensor and the light source for calibration. The placement of the imaging sensor and light source with respect to each other affect the amount of signal received by a pixel as a function of distance to a selected object. For example, an obstruction can block the light emitter, and as the obstruction is positioned an increasing distance away from the light emitter, the signal level increases as light rays leave the light emitters, bounce off the obstruction and are received by the imaging sensor. The system includes a light source configured to emit light, and an image sensor to collect incoming signals including reflected light, and a processor to determine a distance measurement at each of the pixels and calibrate the system.

公开(公告)号：US20200302159A1

公开(公告)日：2020-09-24

申请号：US16898721

申请日：2020-06-11

Applicant: Analog Devices, Inc.

Inventor： Atulya YELLEPEDDI ,  Kaushal SANGHAI ,  John Robert McCARTY ,  Brian C. DONNELLY ,  Nicolas Le DORTZ ,  Johannes TRAA

IPC: G06K9/00 ,  G06T7/70 ,  H04S7/00

Abstract: Far field devices typically rely on audio only for enabling user interaction and involve only audio processing. Adding a vision-based modality can greatly improve the user interface of far field devices to make them more natural to the user. For instance, users can look at the device to interact with it rather than having to repeatedly utter a wakeword. Vision can also be used to assist audio processing, such as to improve the beamformer. For instance, vision can be used for direction of arrival estimation. Combining vision and audio can greatly enhance the user interface and performance of far field devices.