Title:
IMAGE-CAPTURING DEVICE, SUBJECT DEPTH ESTIMATION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2024/004316
Kind Code:
A1
Abstract:
The present invention improves practicality in subject depth estimation through encoded image-capturing. Provided is a subject depth estimation method which involves: acquiring captured unmasked images by capturing a subject in a state where a mask is not present; determining a representative edge direction on the basis of an edge image included in the captured unmasked image; selecting, from among a plurality of masks prepared in advance, a combination of masks of which depth estimation accuracies for an object, which corresponds to an image that represents an edge in the same direction as the representative edge, are relatively the highest; using each mask included in the selected combination of masks to capture the subject and acquire a plurality of captured masked images; and calculating depth estimation values at a plurality of positions in the subject by performing, on the plurality of captured masked images, decoding processes based on point spread functions that are unique to the selected masks, respectively.
Inventors:
TANAKA HITOSHI (JP)
NAKATOGAWA HIRONDO (JP)
AOKI YOSHIRO (JP)
NAKATOGAWA HIRONDO (JP)
AOKI YOSHIRO (JP)
Application Number:
PCT/JP2023/014410
Publication Date:
January 04, 2024
Filing Date:
April 07, 2023
Export Citation:
Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
G01B11/00; G03B9/08; G03B11/00; G06T7/571; H04N23/55; H04N23/60
Foreign References:
| JP2011095027A | 2011-05-12 | |||
| US20080137059A1 | 2008-06-12 | |||
| JP2015154112A | 2015-08-24 |
Other References:
YUICHI TAKEDA, SHINSAKU HIURA, KOSUKE SATO: "Fusion of Depth from Defocus using coded aperture and stereo method", IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, DENSHI JOUHOU TSUUSHIN GAKKAI, JOUHOU SHISUTEMU SOSAIETI, JP, vol. J96-D, no. 8, 1 August 2013 (2013-08-01), JP , pages 1688 - 1700, XP009551652, ISSN: 1880-4535
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (JP)
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