Title:
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/140873
Kind Code:
A1
Abstract:
An invalid pixel detection unit 32 detects invalid pixels from a non-polarization image and a plurality of polarization images having different polarization directions, the non-polarization image and the polarization images being obtained by imaging using a polarization imaging unit 20. For example, the invalid pixel detection unit 32 detects, from the non-polarization image, a saturated pixel having a pixel value larger than a preset saturation detection threshold value, and a black crushed pixel having a pixel value smaller than a preset black crushing detection threshold value as the invalid pixels. A polarization information generation unit 33 performs polarization information generation processing on the basis of the non-polarization image and the polarization images, switches the polarization information generation processing according to the result of detection of the invalid pixels in the invalid pixel detection unit 32, and generates polarization information without using the invalid pixels, thereby being able to acquire correct polarization information.
Inventors:
HIRASAWA YASUTAKA (JP)
KONDO YUHI (JP)
SUN LEGONG (JP)
ONO TAISHI (JP)
KONDO YUHI (JP)
SUN LEGONG (JP)
ONO TAISHI (JP)
Application Number:
PCT/JP2020/047434
Publication Date:
July 15, 2021
Filing Date:
December 18, 2020
Export Citation:
Assignee:
SONY GROUP CORP (JP)
International Classes:
H04N5/232; H04N5/225; H04N5/369
Domestic Patent References:
| WO2018074064A1 | 2018-04-26 | |||
| WO2017085993A1 | 2017-05-26 | |||
| WO2018074064A1 | 2018-04-26 |
Foreign References:
| JP2018029280A | 2018-02-22 | |||
| JP2017228983A | 2017-12-28 | |||
| JP2009290895A | 2009-12-10 |
Other References:
B. GUNTURKJ. GLOTZBACHY. ALTUNBASAKR. SCHAFERR. MERSEREAU: "Demosaicing: Color filter array interpolation", IEEE SIGNAL PROCESSING MAGAZINE, vol. 22, no. 1, January 2005 (2005-01-01)
Attorney, Agent or Firm:
MIYATA, Masaaki et al. (JP)
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