Title:
DEPTH ACQUISITION DEVICE, DEPTH ACQUISITION METHOD, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/066637
Kind Code:
A1
Abstract:
A depth acquisition device (1) that can accurately obtain the depth to a photographic subject comprises a memory (200) and a processor (110a). The processor (110a): obtains the intensity of infrared light that is measured by imaging the subject on the basis of the infrared light and is stored in the memory (200); generates a depth image by calculating the distance to the subject as the depth, on the basis of this infrared light intensity; obtains a BW image generated by capturing an image having substantially the same scene, the same viewpoint, and captured at the same time as the IR image on the basis of the intensity of the infrared light, said BW image being stored in the memory (200); detects, from this BW image, an edge area being an area including an edge following a direction perpendicular to the movement direction of the BW image; and corrects the depth of an area to be corrected, being an area inside the depth image corresponding to this edge area.
Inventors:
AZUMA TAKEO
SATO SATOSHI
WAKAI NOBUHIKO
YOSHIOKA KOHSUKE
SHIMIZU NORITAKA
KAWAI YOSHINAO
AMADA TAKAAKI
KAWAI YOKO
MURAI TAKESHI
TAKEUCHI HIROKI
SATO SATOSHI
WAKAI NOBUHIKO
YOSHIOKA KOHSUKE
SHIMIZU NORITAKA
KAWAI YOSHINAO
AMADA TAKAAKI
KAWAI YOKO
MURAI TAKESHI
TAKEUCHI HIROKI
Application Number:
PCT/JP2019/035781
Publication Date:
April 02, 2020
Filing Date:
September 11, 2019
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G01S17/89; G06T7/521
Domestic Patent References:
| WO2017145450A1 | 2017-08-31 | |||
| WO2018131514A1 | 2018-07-19 |
Foreign References:
| JP2018149628A | 2018-09-27 | |||
| JP2011505610A | 2011-02-24 | |||
| US20180041718A1 | 2018-02-08 | |||
| JP2011064498A | 2011-03-31 |
Other References:
LU , J. ET AL.: "Cross-based local multipoint filtering", 2012 IEEE CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION, 16 June 2012 (2012-06-16), pages 430 - 437, XP032232104, Retrieved from the Internet [retrieved on 20191111]
JIANGBO LUKEYANG SHIDONGBO MINLIANG LINMINH N. DO: "Cross-Based Local Multipoint Filtering", IEEE CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION, 2012
DONGBO MINSUNGHWAN CHOIJIANGBO LUBUMSUB HAMKWANGHOON SOHNMINH N. DO: "Fast Global Image Smoothing Based on Weighted Least Squares", IEEE TRANSACTIONS ON IMAGE PROCESSING, vol. 23, no. 12, December 2014 (2014-12-01), XP011564756, DOI: 10.1109/TIP.2014.2366600
See also references of EP 3859394A4
JIANGBO LUKEYANG SHIDONGBO MINLIANG LINMINH N. DO: "Cross-Based Local Multipoint Filtering", IEEE CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION, 2012
DONGBO MINSUNGHWAN CHOIJIANGBO LUBUMSUB HAMKWANGHOON SOHNMINH N. DO: "Fast Global Image Smoothing Based on Weighted Least Squares", IEEE TRANSACTIONS ON IMAGE PROCESSING, vol. 23, no. 12, December 2014 (2014-12-01), XP011564756, DOI: 10.1109/TIP.2014.2366600
See also references of EP 3859394A4
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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