# US 11,896,385 B2 · Digital imaging systems and methods of analyzing pixel data of an image of a shaving stroke for determining pressure being applied to a user's skin

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- Number: US 11,896,385 B2
- Document ID: US11896385B2
- Status: Granted
- Kind: B2
- Application number: 17/825,262
- Filed: 2022-05-26
- Published: 2022-09-08
- Granted: 2024-02-13
- Earliest claimed: 2020-07-02
- Assignees: The Gillette Company
- Applicants: The Gillette Company LLC
- Inventors: Leigh Knight; Susan Clare Robinson; Sean Patrick Wheeler; Kevin David Cowley
- Web page: https://patentgrep.com/patent/US11896385B2

## CPC

- A61B 5/445: {Evaluating skin irritation or skin trauma, e.g. rash, eczema, wound, bed sore}
- G06T 7/00: Image analysis
- A61B 5/7278: {Artificial waveform generation or derivation, e.g. synthesizing signals from measured signals}
- B26B 21/4031: {characterised by special geometric shaving parameters, e.g. blade span or exposure}
- G06T 7/0012: {Biomedical image inspection}
- G06T 2207/20081: Training; Learning
- G06T 2207/20084: Artificial neural networks [ANN]
- G06T 2207/30088: Skin; Dermal
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H)

## Abstract

Digital imaging systems and methods are described for analyzing pixel data of an image of a shaving stroke for determining pressure being applied to a user's skin. A plurality of training images of a plurality of individuals are aggregated, each of the training images comprising pixel data of a respective individual when shaving with a shaving razor. A pressure model, trained with the pixel data, is operable to determine pressure being applied to the respective individual's skin. An image of a user when shaving with the shaving razor is received and analyzed, by the pressure model, to determine a user-specific pressure being applied to the user's skin by the shaving razor when a user shaving stroke is taken. A user-specific electronic recommendation to address at least one feature identifiable within the pixel data is generated and rendered, on a display screen of a user computing device.

## Claims

### Claim 1

A digital imaging method of analyzing pixel data of an image of a shaving stroke for determining pressure being applied to a user's skin, the digital imaging method comprising the steps of:
a. aggregating, at one or more processors communicatively coupled to one or more memories, a plurality of training images of a plurality of individuals, each of the training images comprising pixel data of a respective individual when shaving with a shaving razor;
b. training, by the one or more processors with the pixel data of the plurality of training images, a pressure model operable to determine pressure being applied to the respective individual's skin by a shaving razor when a shaving stroke is taken;
c. receiving, at the one or more processors, at least one image of a user when shaving with the shaving razor, the at least one image captured by a digital camera, and the at least one image comprising pixel data of at least a portion of the shaving razor applied to the user's skin;
d. analyzing, by the pressure model executing on the one or more processors, the at least one image captured by the digital camera to determine a user-specific pressure being applied to the user's skin by the shaving razor when a user shaving stroke is taken;
e. generating, by the one or more processors based on the user-specific pressure, at least one user-specific electronic recommendation designed to address at least one feature identifiable within the pixel data comprising the at least the portion of the shaving razor applied to the user's skin;
f. rendering, on a display screen of a user computing device, the at least one user-specific recommendation, wherein the at least one user-specific electronic recommendation comprises a product recommendation for a manufactured product;
g. generating, by the one or more processors, a modified image based on the at least one image, the modified image depicting how the user's skin is predicted to appear after treating the at least one feature with the manufactured product; and
h. rendering, on the display screen of the user computing device, the modified image.

### Claim 2 (depends on 1)

The digital imaging method of claim 1, wherein the at least one user-specific electronic recommendation is displayed on the display screen of the user computing device with a graphical representation of the user's skin as annotated with one or more graphics or textual renderings corresponding to the user-specific pressure.

### Claim 3 (depends on 1)

The digital imaging method of claim 1, wherein the at least one user-specific electronic recommendation is rendered in real-time or near-real time, during, or after the user shaving stroke is taken.

### Claim 4 (depends on 1)

The digital imaging method of claim 1, wherein the at least one user-specific electronic recommendation is displayed on the display screen of the user computing device with instructions for treating, with the manufactured product, the at least one feature identifiable in the pixel data comprising the at least the portion of the shaving razor applied to the user's skin.

### Claim 5 (depends on 1)

The digital imaging method of claim 1, further comprising the steps of:
initiating, based on the product recommendation, the manufactured product for shipment to the user.

### Claim 6 (depends on 1)

The digital imaging method of claim 1, wherein the at least one user-specific electronic recommendation is displayed on the display screen of the user computing device with instructions for treating, with the shaving razor, the at least one feature identifiable in the pixel data comprising the at least the portion of the shaving razor applied to the user's skin.

### Claim 7 (depends on 1)

The digital imaging method of claim 1, wherein the pressure model is an artificial intelligence (AI) based model trained with at least one AI algorithm.

### Claim 8 (depends on 1)

The digital imaging method of claim 1,
wherein the pressure model is further trained, by the one or more processors with the pixel data of the plurality of training images, to output one or more location identifiers indicating one or more corresponding body area locations of respective individuals, and
wherein the pressure model, executing on the one or more processors and analyzing the at least one image of the user, determines a location identifier indicating a body area location of the user's body or body area.

### Claim 9 (depends on 8)

The digital method of claim 8, wherein the body area location comprises the user's cheek, the user's neck, the user's head, the user's groin, the user's underarm, the user's chest, the user's back, the user's leg, the user's arm, or the user's bikini area.

### Claim 10 (depends on 1)

The digital method of claim 1, wherein training, by the one or more processors with the pixel data of the plurality of training images, the pressure model comprises training the pressure model to detect an amount of depression of the user's skin to determine the user-specific pressure being applied to the user's skin by the shaving razor when the shaving stroke is taken.

### Claim 11 (depends on 1)

The digital method of claim 1, wherein training, by the one or more processors with the pixel data of the plurality of training images, the pressure model comprises training the pressure model to detect an angle of a razor cartridge with respect to a razor handle of the shaving razor to determine the user-specific pressure being applied to the user's skin by the shaving razor when the shaving stroke is taken.

### Claim 12 (depends on 1)

The digital method of claim 1, wherein training, by the one or more processors with the pixel data of the plurality of training images, the pressure model comprises training the pressure model to detect an amount of depression of the user's skin in combination with an angle of a razor cartridge with respect to a razor handle of the shaving razor to determine the user-specific pressure being applied the a user's skin by the shaving razor when the shaving stroke is taken.

### Claim 13 (depends on 1)

The digital method of claim 1, wherein training, by the one or more processors with the pixel data of the plurality of training images, the pressure model comprises training the pressure model to detect an amount of depression of the user's skin in combination with a direction in which a razor handle of the shaving razor is oriented relative to a body area of the user to determine the user-specific pressure being applied the a user's skin by the shaving razor when the shaving stroke is taken.

### Claim 14 (depends on 1)

The digital method of claim 1, wherein training, by the one or more processors with the pixel data of the plurality of training images, the pressure model comprises training the pressure model to detect an amount of depression of the user's skin in combination with a hand grip pattern of the user on a razor handle of the shaving razor to determine the user-specific pressure being applied the a user's skin by the shaving razor when the shaving stroke is taken.

### Claim 15 (depends on 1)

The digital method of claim 1, further comprising:
receiving, at the one or more processors, a new image of the user when shaving with the shaving razor, the new image captured by the digital camera, and the new image comprising pixel data of at least a portion of the shaving razor applied to the user's skin;
analyzing, by the pressure model executing on the one or more processors, the new image captured by the digital camera to determine a new user-specific pressure being applied to the user's skin by the shaving razor when a new user shaving stroke is taken;
generating, based on the new user-specific pressure, a new user-specific electronic recommendation or comment regarding at least one feature identifiable within the pixel data of the new image; and
rendering, on a display screen of a user computing device of the user, the new user-specific recommendation or comment.

### Claim 16 (depends on 15)

The digital imaging method of claim 15, wherein a delta pressure value is generated based on a comparison between the new user-specific pressure and the user-specific pressure, wherein the new user-specific recommendation or comment is further based on the delta pressure value, and wherein the delta pressure value, a representation of the delta pressure value, or a comment based on the delta pressure value, is rendered on the display screen of the user computing device.

### Claim 17 (depends on 1)

The digital method of claim 1, wherein the one or more processors comprises at least one of a server or a cloud-based computing platform, and the server or the cloud-based computing platform receives the plurality of training images of the plurality of individuals via a computer network, and wherein the server or the cloud-based computing platform trains the pressure model with the pixel data of the plurality of training images.

### Claim 18 (depends on 17)

The digital method of claim 17, wherein the server or a cloud-based computing platform receives the at least one image comprising the pixel data of at the least a portion of the shaving razor applied to the user's skin, and wherein the server or a cloud-based computing platform executes the pressure model and generates, based on output of the pressure model, the user-specific recommendation and transmits, via the computer network, the user-specific recommendation to the user computing device for rendering on the display screen of the user computing device.

### Claim 19 (depends on 1)

The digital method of claim 1, wherein the user computing device comprises at least one of a mobile device, a tablet, a handheld device, a desktop device, a home assistant device, a personal assistant device, or a retail computing device.

### Claim 20 (depends on 1)

The digital method of claim 1, wherein the user computing device receives the at least one image comprising the pixel data of the at least a portion of the shaving razor applied to the user's skin, and wherein the user computing device executes the pressure model and generates, based on output of the pressure model, the user-specific recommendation, and renders the user-specific recommendation on the display screen of the user computing device.

### Claim 21 (depends on 1)

The digital method of claim 1, wherein the at least one image comprises a plurality of images.

### Claim 22 (depends on 21)

The digital method of claim 21, wherein the plurality of images are collected using a digital video camera.

### Claim 23 (depends on 1)

The digital method of claim 1, wherein the shaving razor is a wet razor, a dry shaver, or an electric razor.

### Claim 24

A digital imaging system configured to analyze pixel data of an image of a shaving stroke for determining pressure being applied to a user's skin, the digital imaging system comprising:
an imaging server comprising a server processor and a server memory;
an imaging application (app) configured to execute on a user computing device comprising a device processor and a device memory, the imaging app communicatively coupled to the imaging server; and
a pressure model trained with pixel data of a plurality of training images of individuals and operable to determine pressure being applied to a respective individual's skin by a shaving razor when a shaving stroke is taken,
wherein the pressure model is configured to execute on the server processor or the device processor to cause the server processor or the device processor to:
receive at least one image of a user when shaving with the shaving razor, the at least one image captured by a digital camera, and the at least one image comprising pixel data of at least a portion of the shaving razor applied to the user's skin,
analyze, by the pressure model, the at least one image captured by the digital camera to determine a user-specific pressure being applied to the user's skin by the shaving razor when a user shaving stroke is taken,
generate, based on the user-specific pressure, at least one user-specific electronic recommendation designed to address at least one feature identifiable within the pixel data comprising the at least the portion of the shaving razor applied to the user's skin,
render, on a display screen of the user computing device of the user, the at least one user-specific recommendation, wherein the at least one user-specific electronic recommendation comprises a product recommendation for a manufactured product,
generate, by the one or more processors, a modified image based on the at least one image, the modified image depicting how the user's skin is predicted to appear after treating the at least one feature with the manufactured product, and
render, on the display screen of the user computing device, the modified image.

### Claim 25

A tangible, non-transitory computer-readable medium storing instructions for analyzing pixel data of an image of a shaving stroke for determining pressure being applied to a user's skin, that when executed by one or more processors cause the one or more processors to:
a. aggregate, at one or more processors communicatively coupled to one or more memories, a plurality of training images of a plurality of individuals, each of the training images comprising pixel data of a respective individual when shaving with a shaving razor;
b. train, by the one or more processors with the pixel data of the plurality of training images, a pressure model operable to determine pressure being applied to the respective individual's skin by a shaving razor when a shaving stroke is taken;
c. receive, at the one or more processors, at least one image of a user when shaving with the shaving razor, the at least one image captured by a digital camera, and the at least one image comprising pixel data of at least a portion of the shaving razor applied to the user's skin;
d. analyze, by the pressure model executing on the one or more processors, the at least one image captured by the digital camera to determine a user-specific pressure being applied to the user's skin by the shaving razor when a user shaving stroke is taken;
e. generate, by the one or more processors based on the user-specific pressure, at least one user-specific electronic recommendation designed to address at least one feature identifiable within the pixel data comprising the at least the portion of the shaving razor applied to the user's skin;
f. render, on a display screen of a user computing device, the at least one user-specific recommendation, wherein the at least one user-specific electronic recommendation comprises a product recommendation for a manufactured product;
ci. generate a modified image based on the at least one image, the modified image depicting how the user's skin is predicted to appear after treating the at least one feature with the manufactured product; and
h. render, on the display screen of the user computing device, the modified image.