公开(公告)号：US20240248182A1

公开(公告)日：2024-07-25

申请号：US18532875

申请日：2023-12-07

Applicant: SK hynix Inc. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Min Hyuk KIM ,  Daniel S. Jeon

IPC: G01S7/487 ,  G01S7/4865 ,  G01S17/894

CPC classification number: G01S7/487 ,  G01S7/4866 ,  G01S17/894

Abstract: Detecting a multi-path interference component in a time-of-flight (ToF) camera may be performed by generating a confidence map in which a distortion area attributable to a multi-path interference component included in a reflection modulation signals is specified, where the reflection modulation signals is generated when two modulation signals emitted from a light source to a subject return to the ToF camera after being reflected by the subject. Correcting the multi-path interference component corrects distortion attributable to a multi-path interference component, which may include correcting only the distortion area specified in the confidence map. Detecting the multi-path interference component in a ToF camera includes collecting the reflection modulation signal at a plurality of different times, calculating amplitudes and offsets of the collected reflection modulation signals, determining whether a multi-path interference component is included in the reflection modulation signal, and generating the confidence map.

公开(公告)号：US20230010725A1

公开(公告)日：2023-01-12

申请号：US17540632

申请日：2021-12-02

Applicant: SK hynix Inc. ,  Korea Advanced Institute of Science and Technology

Inventor： Min Hyuk KIM ,  Daniel S. JEON

IPC: G06T5/00 ,  G06T5/50 ,  G06T5/40 ,  G06T7/00 ,  H04N5/232 ,  G01S17/894

Abstract: A method of reduce the impact of noise on a depth image produced using a Time Of Flight (TOF) camera uses an infrared image produced from one or more phase-specific images captured by the TOF camera to determine whether to move pixels in the depth image from one phase section to another.