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公开(公告)号：US20240087142A1
公开(公告)日：2024-03-14
申请号：US17914444
申请日：2021-03-12
发明人： Timur ALMAEV , Anthony BROWN , William Westwood PRESTON , Robert Lindsay TRELOAR , Michel François VALSTAR , Ruediger Zillmer
CPC分类号： G06T7/248 , A46B15/0006 , G06T7/74 , G06V10/56 , G06V20/41 , G06V20/46 , G06V40/165 , G06V40/171 , G06V40/20 , A46B2200/1066 , G06T2207/10016 , G06T2207/10024 , G06T2207/30036 , G06T2207/30201 , G06T2207/30204
摘要： A method of tracking a user's toothcare activity comprises receiving video images of a user's face during, e.g. a toothbrushing session, and identifying, in each of a plurality of frames of the video images, predetermined features of the user's face. The features include at least two invariant landmarks associated with the user's face and one or more landmarks selected from at least mouth feature positions and eye feature positions. Predetermined marker features of a toothcare appliance, e.g. a brush in use are identified in each of the plurality of frames of the video images. From the at least two invariant landmarks associated with the user's nose, a measure of inter-landmark distance is determined. An appliance length normalised by the inter-landmark distance is determined. From the one or more landmarks selected from at least mouth feature positions and eye feature positions, one or more appliance-to-facial feature distances each normalised by the inter-landmark distance is determined. A appliance-to-nose angle and one or more appliance-to-facial feature angles is determined. Using the determined angles, the normalised appliance length and the normalised appliance-to-facial feature distances, each frame is classified as corresponding to one of a plurality of possible tooth regions being brushed.
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公开(公告)号：US20220104612A1
公开(公告)日：2022-04-07
申请号：US17426454
申请日：2020-01-23
IPC分类号： A46B15/00
摘要： A method of identifying a toothbrush user from among a plurality of different toothbrush users comprises obtaining data indicative of toothbrush motion relative to at least two axes of the toothbrush and filtering the motion data to extract motion data over a predetermined frequency range, such as within a predetermined frequency passband. A motion component distribution of the filtered motion data is determined, and the motion component distribution is compared with a plurality of user-specific motion component distributions to establish the data as indicative of one of said plurality of users. Toothbrushing data captured by a multi-user toothbrush motion tracking system can thereby be ascribed to a correct user within a cohort of users of the system.
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公开(公告)号：US11068051B2
公开(公告)日：2021-07-20
申请号：US16065214
申请日：2016-12-19
申请人： Conopco, Inc.
发明人： Steven David Benford , Anthony Brown , Nils Jäger , Brian Patrick Newby , Adam Thomas Russell , Louise Mary Schofield , Katharine Jane Shaw , Paul Robert Tennent , Michel François Valstar , Ruediger Zillmer
摘要： An augmented mirror comprising: a partially silvered mirrored surface; a screen underneath the mirrored surface; a camera; and a computer module for receiving data from the camera and for providing graphical images to the screen, wherein the field of view over which visual information is processed is reduced to visual information from within a visual corridor, the visual corridor corresponding to a subset of the field of view of the camera.
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公开(公告)号：US10963047B2
公开(公告)日：2021-03-30
申请号：US16065207
申请日：2016-12-19
申请人： Conopco, Inc.
发明人： Steven David Benford , Brian Patrick Newby , Adam Thomas Russell , Katharine Jane Shaw , Paul Robert Tennent , Robert Lindsay Treloar , Michel François Valstar , Ruediger Zillmer
摘要： An augmented mirror for use with one or more user objects, the augmented mirror comprising: a partially silvered mirrored surface; a screen underneath the mirrored surface; a camera including a depth scanner; and a computer module for receiving data from the camera and for providing graphical images to the screen; wherein the sole means of communication with the computer module is via the one or more user objects.
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