Patent SG-11201809183X-A (SG)
Title: Bi-frequency dental examination
Inventor: DE JOSSELIN DE JONG ELBERT
IPC: G06T7/00
Filed: 2017-04-13
Abstract: Rinidifferent excitawn tamps filter Patient's teeth. Patient' s mouth W O 1717 / 8889 Al (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (10) International Publication Number (43) International Publication Date WO 2017/178889 Al 19 October 2017 (19.10.2017) WIPO I PCT 111111111111110111011111111111010111110 010111EHH1101110111111111110111111 (51) International Patent Classification: A61B 1/06 (2006.01) A61B 5/00 (2006.01) A61B 1/24 (2006.01) G06T 7/00 (2017.01) (21) International Application Number: PCT/IB2017/000513 (22) International Filing Date: 13 April 2017 (13.04.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/321,968 13 April 2016 (13.04.2016) US (71) Applicant: INSPEKTOR RESEARCH SYSTEMS B.V. [NL/NL]; Gooilandseweg 10, 1406 LL Bucsum, OT (NL). (72) Inventor: DE JOSSELIN DE JONG, Elbert; Gooiland- seweg 10, 1406 LL Bussum, OT (NL). (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, 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)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h)) (54) Title: BI-FREQUENCY DENTAL EXAMINATION (57) : A system and a method for improving visibility of newly decaying or carious tissue are described. Light having a lower peak wavelength (such as 405 nm) illuminates dental tissue, and an image is captured. Light having a higher peak wavelength (such as 450 nm) then illuminates the same dental tissue, and a second image is captured. The images are aligned, and an output im- age is created based on at least one of the first image and the second image, modified in certain areas as a function of the relation - ships between the red values of the first image (R1) and the second image (R2) at that location and the green values of the first image (G1) and the second image (G2) at that location. The function may use the ratios R2:R1 and G1 :G2, such as a function of the product of those ratios, to determine the color adjustment that is applied.