公开(公告)号：US20190179164A1

公开(公告)日：2019-06-13

申请号：US15835813

申请日：2017-12-08

Applicant: Nokia Technologies Oy

Inventor： Hong Jiang

IPC: G02B27/42 ,  G06T1/00 ,  G06T5/50 ,  G02B27/00 ,  G02B26/08

Abstract: An method is provided including determining a first set of aperture patterns and a second set of aperture patterns for performing measurements with an imaging device such that for each aperture pattern in the first set of aperture patterns there exists a complementary aperture pattern in the second set of aperture patterns, wherein the imaging device comprises a sensor and an aperture assembly having a plurality of aperture elements; performing a measurement for each respective aperture pattern in the first set and in the second set by changing a property associated with one or more of the plurality of aperture elements in accordance with the respective aperture pattern; and processing the performed measurements to extract information about an image.

公开(公告)号：US11624804B2

公开(公告)日：2023-04-11

申请号：US17066057

申请日：2020-10-08

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Ian Davis ,  Walter Etter ,  Hong Jiang

IPC: G01S5/24

Abstract: A system, apparatus, method and computer program product determine the location of a receiver, such as one or more sensors, carried by a device, e.g., a robot. In a method, an audio signal is received in response to a predetermined audio signal provided by at least two audio source devices. For the audio signal that is received from a respective audio source device, the method estimates a first impulse response between the respective audio source device and the receiver. For the first impulse response estimated between each respective audio source device of the at least two audio source devices and the receiver, the method removes one or more reflections from the first impulse response to create direct path information. The method also includes determining a location of the receiver based at least in part upon the direct path information.