公开(公告)号：US11852806B2

公开(公告)日：2023-12-26

申请号：US17157530

申请日：2021-01-25

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Jie Cao ,  Qun Hao ,  Guoliang Li ,  Mingyuan Tang ,  Chun Bao ,  Zixiong Wu

IPC: G02B26/10 ,  A61B5/00 ,  G02B26/08 ,  H04N9/31 ,  G09G3/02

CPC classification number: G02B26/101 ,  A61B5/0064 ,  G02B26/0833 ,  G09G3/025 ,  H04N9/3135 ,  A61B2562/028

Abstract: A method for controlling hybrid scanning based on a miniature reflecting device, which includes: loading parameters for determinant scanning and circular scanning, setting a scanning start point, and performing determinant scanning; performing low-pass filtering on received sampling data to filter an outlier in a sampling process, and performing singular value determining, to determine whether there is a valid connected domain within a scanning field of view; determining, as a target of interest, a valid connected domain with a maximum quantity of singular values, and obtaining a geometric center of the target of interest by calculating an average value of driving voltages corresponding to the singular values; performing circular scanning by using the geometric center as a scanning center, determining, in a process of scanning an outermost ring, whether singular values are centrosymmetrically distributed on the ring, to fine-tune the scanning center till the singular values are centrosymmetrically distributed on the ring.

公开(公告)号：US12126911B2

公开(公告)日：2024-10-22

申请号：US17726293

申请日：2022-04-21

Applicant: Beijing Institute of Technology

Inventor： Jie Cao ,  Qun Hao ,  Huan Cui ,  Yingqiang Zhang

IPC: H04N5/232 ,  G02B5/02 ,  H04N5/225 ,  H04N23/56 ,  H04N23/698

CPC classification number: H04N23/698 ,  G02B5/0284 ,  H04N23/56

Abstract: An omnidirectional ghost imaging system based on a mechanism of bio-inspired retina-like includes a projection system, a collimating lens, a spectroscope, a curved mirror, a bucket detector, a data acquisition card and an arithmetic system. According to the application, the logarithmic polar mapping characteristic of the bio-inspired retina-like structure is utilized to generate an annular pattern sequence of the bio-inspired retina-like, and the pattern sequence is utilized to modulate a light source. After being reflected by the target around the curved mirror, the light is projected onto the curved mirror and diffusely reflected. According to the reversible characteristics of the optical path, the light after diffuse reflection is reflected to the original light source by the half mirror and half lens, and the reflected light intensity with target information is received by the bucket detector.