Title:
IMAGE PROCESSING DEVICE, IMAGE PROCESSING METHOD, AND IMAGE PROCESSING PROGRAM
Document Type and Number:
WIPO Patent Application WO/2022/157921
Kind Code:
A1
Abstract:
In the case of performing encoding with a compression ratio greater than a limit compression ratio at which recognition by artificial intelligence is possible, the present invention suppresses a degradation in recognition accuracy. This image processing device comprises: a determination unit which, when encoding image data of each frame of moving image data, determines whether overflow occurs in a virtual buffer; and a change unit which, when the overflow is determined to occur, refers to information to be recognized, and changes, to a quantization value higher than that according to the limit compression ratio, a quantization value of a block at a position corresponding to an area of a recognition target other than a recognition target designated by the information to be recognized from among recognition targets included in the image data.
Inventors:
KUBOTA TOMONORI (JP)
NAKAO TAKANORI (JP)
NAKAO TAKANORI (JP)
Application Number:
PCT/JP2021/002221
Publication Date:
July 28, 2022
Filing Date:
January 22, 2021
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
H04N19/126; H04N19/152; H04N19/167; H04N19/176
Foreign References:
| JP2017168878A | 2017-09-21 | |||
| JPH07184062A | 1995-07-21 | |||
| JP2005005862A | 2005-01-06 |
Other References:
KUBOTA, TOMONORI ET AL.: "Video Data High-Compression Technology Specialized for A1 Analysis -Toward Use in Cloud and 5G", FUJITSU TECHNICAL REVIEW, 19 August 2020 (2020-08-19), pages 1 - 7, Retrieved from the Internet [retrieved on 20210312]
ANONYMOUS: "Development of high-compression technology for video feature values that enables automatic monitoring of large volumes of video using AI ", PRESS RELEASE (TECHNOLOGY), 16 November 2020 (2020-11-16), XP055961543, Retrieved from the Internet
TOMONORI KUBOTA, TAKANORI NAKAO, EIJI YOSHIDA: "A high-compression video coding method for video analysis using Deep Learning", IEICE TECHNICAL REPORT, IE, vol. 119, no. 456 (IE2019-121), 27 February 2020 (2020-02-27), JP , pages 121 - 126, XP009539202, ISSN: 2432-6380
NAKAO, TAKANORI ET AL.: "Video coding method for A1 analysis", IPSJ SIG TECHNICAL REPORT, vol. 2020 -0S, no. 7, 28 February 2020 (2020-02-28), pages 1 - 6, XP009536942, ISSN: 2188- 8795
ANONYMOUS: "Development of high-compression technology for video feature values that enables automatic monitoring of large volumes of video using AI ", PRESS RELEASE (TECHNOLOGY), 16 November 2020 (2020-11-16), XP055961543, Retrieved from the Internet
TOMONORI KUBOTA, TAKANORI NAKAO, EIJI YOSHIDA: "A high-compression video coding method for video analysis using Deep Learning", IEICE TECHNICAL REPORT, IE, vol. 119, no. 456 (IE2019-121), 27 February 2020 (2020-02-27), JP , pages 121 - 126, XP009539202, ISSN: 2432-6380
NAKAO, TAKANORI ET AL.: "Video coding method for A1 analysis", IPSJ SIG TECHNICAL REPORT, vol. 2020 -0S, no. 7, 28 February 2020 (2020-02-28), pages 1 - 6, XP009536942, ISSN: 2188- 8795
Attorney, Agent or Firm:
ITOH, Tadashige et al. (JP)
Download PDF: