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Title:
SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/281802
Kind Code:
A1
Abstract:
This disclosure relates to a signal processing device and signal processing method that make it possible to accurately acquire distance information when there is a transparent subject. This signal processing device comprises an acquisition unit for acquiring histogram data for the time of flight of light that has been emitted onto a subject, a transparent subject determination unit for determining whether the subject is a transparent subject on the basis of peak information indicated by the histogram data and three-dimensional coordinates of the subject calculated on the basis of the histogram data, and an output unit for outputting color information for the subject or corrected three-dimensional coordinates of the subject on the basis of the transparent subject determination result of the transparent subject determination unit. This invention can be applied to, for example, a signal processing device for correcting distance information acquired by a direct ToF sensor.

Inventors:
FUJIOKA MOTONOBU (JP)
MORIUCHI YUSUKE (JP)
NAKAMURA KENICHIRO (JP)
SASAKI TAKAYUKI (JP)
MIHARA HAJIME (JP)
Application Number:
PCT/JP2022/007088
Publication Date:
January 12, 2023
Filing Date:
February 22, 2022
Export Citation:
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Assignee:
SONY GROUP CORP (JP)
International Classes:
G01S17/894; G01S7/487; G06T7/00; G06T7/90
Domestic Patent References:
WO2020071465A12020-04-09
Foreign References:
JP2019032305A2019-02-28
JP2002328169A2002-11-15
JP2019053073A2019-04-04
US20170366737A12017-12-21
JP2019029938A2019-02-21
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (JP)
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