An apparatus for classifying the motion of a movable treatment device having at least one inertial sensor, a motion pattern classification device configured to discriminate between two or more motion classes contained in a set of motion classes of the movable treatment device, and an interface for providing inertial sensor data from the inertial sensor to the motion pattern classification device. The inertial sensor data represents a movement of the movable treatment device, wherein the motion pattern classification device comprises at least one neural network configured to receive and classify the inertial sensor data with respect to the motion classes contained, each associated with at least one class member selected based on the motion of the movable treatment device.

A method and an apparatus for performing a localization of a movable treatment device having an inertial sensor and configured to treat a target surface. A motion pattern recognition device discriminates between two or more motion patterns contained in a set of motion patterns. An interface provides at least one inertial sensor data from the inertial sensor to the motion pattern recognition device. At least one inertial sensor data represents a movement of the movable treatment device. A neural network is configured to receive the at least one inertial sensor data and to map the at least one inertial sensor data to at least one motion pattern contained in the set of motion patterns associated with one or more different zones of the target surface so that the mapping of the at least one inertial sensor data with the at least one motion pattern indicates an estimation of the location of the device with respect to at least one zone of the target surface.

An apparatus for performing a localization of a movable treatment device having at least one inertial sensor and configured to treat the target surface. The apparatus has a motion pattern classification device configured to discriminate between two or more motion classes contained in a set of motion classes, and an interface for providing, from the inertial sensor to the motion pattern classification device, inertial sensor data representing a movement of the movable treatment device. The motion pattern classification device has a neural network configured to receive and classify inertial sensor data with respect to the motion classes associated with one or more different zones relating to the target surface so that the classification of inertial sensor data indicates an estimation of the location of the movable treatment device with respect to the one or more zones of the target surface.

There is provided a personal care apparatus that is configured to connect to a display apparatus. The personal care apparatus comprises a first control unit configured to: determine a current operation mode of the personal care apparatus as a usage mode or a control mode, and detect a first predetermined user maneuver. The first predetermined user maneuver corresponds to a control operation of the personal care apparatus in the usage mode and corresponds to a control operation of the display apparatus in control mode. When the first predetermined user maneuver is detected, the first control unit is further configured to: perform the control operation of the personal care apparatus if the determined current operation mode is the usage mode, or transmit a control signal corresponding to the control operation of the display apparatus to the display apparatus if the determined current operation mode is the control mode.

An oral care device such as an oral care implement or a toothbrush. The oral care device may include a handle and a head. The head may have a plurality of cleaning elements extending therefrom. The head may comprise a channel and a plurality of electrodes may be located within the channel. The electrodes may be coupled to a power source. The electrodes may be used to generate a chemical agent via the application of an electrical potential across the electrodes when in communication with an electrolyte. The chemical agents may include ozone, hydrogen peroxide, peroxide, chlorine hypochlorite, ions, peroxides, and/or other chemical agents.

Embodiments of the present invention embody motion detection via a camera for mobile platform video gaming and exercise, in either integrated or separately attachable components. The system includes an oral care device. The oral care device, such as a toothbrush, includes one or more targets. Each target designates a specific area of the toothbrush, such as back side, a front side, a brush head or a brush end. A target can be a color or a tag, and can be removably coupled or integrally formed with the toothbrush. The system also includes an application configured to detect the targets, to determine that a property of any of the targets has changed. Based on at least the determination, the application is configured to monitor progress of brushing and to control an element in the application.

A method, system, and device for measuring and evaluating hair loss over time is disclosed. A instrumented comb device includes a power source, a controller, and associated sensors. The controller receives signals from the sensors, including a contact sensor to detect contact with a scalp and obtain a hair count, and a magnetic compass to determine location on the scalp. The controller includes one or more processors that acquire and record the detected contact information and determined location information as the comb device is stroked over a scalp, and measure hair density based on the contact information and location information. The instrumented comb can communicate with a remote information system or a mobile device for auxiliary processing and display. Machine learning of the remote information system allows for recognizing hair density or prediction of future trends in hair density over time using data recorded by the sensors.

An oral care implement has a front side and a back side opposite the front side and an overall length extension between mutually opposite proximal and distal ends. A head of the implement, disposed at the proximal end, has at least one cleaning element extending from the front side. A handle is at least partially made from a material having a density higher than that of the head's material. The handle's cross-sectional area, extending substantially perpendicular to the overall length extension, has a height extension between the front and back sides. The implement has a center of gravity situated below an axis of rotation when the oral care implement is placed with its back side on a surface. The center of gravity is closer to the back side than to the front side of the implement when measured along the height extension of the handle.

An oral care implement has an overall length extension extending between a proximal end and a distal end, the distal end being opposite the proximal end. The oral care implement comprises a head at the proximal end and a handle, the handle being at least partially made from a material having a density being higher than the density of the material of the head. The oral care implement has a center of gravity located at a distance measured from the distal end, and the ratio of said distance to the overall length extension of the oral care implement is from about 0.30 to about 0.45, preferably from about 0.35 to about 0.42, further preferably from about 0.38 to about 0.41.

A method for estimating a pose of an oral hygiene device including a pattern and a plurality of groups of visual markers relative to a location includes (i) receiving image data reproducible as an image of at least a portion of the oral hygiene device; (ii) analyzing the image data to identify a region of interest within the image; (iii) identifying, using at least one of the one or more processors, all candidate visual markers within the region of interest; (iv) obtaining a first proposed three-dimensional pose of the oral hygiene device; (v) validating the first proposed three-dimensional pose of the oral hygiene device; and (vi) obtaining a second proposed three-dimensional pose of the oral hygiene device based on the validated first proposed three-dimensional pose.