Patent SG-11201901254U-A (SG)
Title: Method and system for capturing images for wound assessment with self color compensation
Inventor: MING WEI
IPC: G06T15/08
Filed: 2017-05-11
Abstract: EdFig. C 5102: Capture baseline images •with color checker; designate baseline re gions S104: Perform color compensation for captured imaaes using color checker SI07: Retrieve reference color data S109: Com p are baseline regions to registered baseline color data S110: A large number of baseline egions have color difference values ahove a first threshold? yes Sill Display warning message > ne S101: First lime capture? 1 yes S106: Assess wound: register result wound assessment — Siff: Display warning mesmg 5116: Assess wound: register result of wound assessment S103: diapitin, image of wound an d surrounding arcas; designate serene., reference re 'ions S105: Register images and color data of baseline regions and secondary mfernee region, 5 108: Capture baseline images; color compensation: designate baseline regions S112: Capture image of wound and i ts surrounding area; colorcompensatin n iir S113: Is average color diffcrcnce hely, cen semndary reform. r egions and registered color data above a second threshold? ye 3115 Pedmin color compensation for captured wound image using registered and newly captured baseline color data 1-1 *!IC O cc O C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 08 March 2018 (08.03.2018) WIPO I PCT mu °million °nolo olo Ho mil oolloommo oimIE (10) International Publication Number WO 2018/044364 Al (51) International Patent Classification: G06T 15/08 (2011.01) GO6T 11/00 (2006.01) A61B 5/107 (2006.01) GO6T 11/60 (2006.01) A61B 6/00 (2006.01) G06T 15/00 (2011.01) (21) International Application Number: PCT/US2017/032173 (22) International Filing Date: 11 May 2017 (11.05.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/251,968 30 August 2016 (30.08.2016) US (71) Applicant: KONICA MINOLTA LABORATORY U.S.A., INC. [US/US]; 2855 Campus Drive, Suite 100, San Mateo, California 94403 (US). (72) Inventor: MING, Wei; 2855 Campus Drive, Suite 100, San Mateo, California 94403 (US). (74) Agent: CHEN, Ying; Chen Yoshimura LLP, 108 W 2nd Street #514, Los Angeles, California 90012 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, (54) Title: METHOD AND SYSTEM FOR CAPTURING IMAGES FOR WOUND ASSESSMENT WITH SELF COLOR COM- PENSATION (57) : A wound image capture method that uses self color compensation to improve color consistency of the captured image and reliability of color-based wound detection. The method uses the skin tone of parts of the patient's own body for color calibration and compensation. In a data registration process, multiple parts of a new patient's body are imaged as baseline images and color data of the baseline images are registered in the system as reference color data. During subsequent wound image capture and wound assessment process, the same parts of the patient's body are imaged again as baseline images, and the wound and its surrounding areas are also imaged. Color data of the newly capture baseline images are compared to the registered reference color data and used to perform color compensation for the wound image. [Continued on next page] WO 2018/044364 Al MIDEDIMOMMIDIREEMOMMOIEMINHEMOVOIS GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3))