6 results about "Facial geometry" patented technology

Techniques are provided for measuring interpupillary distance (IPD) using a mobile device application that integrates with augmented reality (AR) eyewear. The mobile application guides users through a measurement process using the device's camera and sensors to capture facial data. Computer vision algorithms analyze the data to determine IPD measurements while considering facial geometry and depth perception. The system provides real-time positioning feedback and allows manual entry of known IPD values. Measurements are stored in user profiles rather than on AR devices, enabling cross-device synchronization. The integration of IPD measurement into the initial device setup process, combined with flexible measurement options and profile-based storage, provides an accessible solution that maintains accuracy while eliminating the need for specialized measurement hardware.

The invention relates to a three-dimensional face high-fidelity texture generation method based on a multi-view high-definition image, and the method comprises the steps: constructing a three-dimensional face triangular mesh model through employing a camera fusion weight and an external parameter based on the cosine square of a view angle, and solving a texture mixed weight of each camera to a mesh triangular patch; the cylindrical UV expansion method is used for adapting to the geometrical characteristics of the human face, so that the texture stretching distortion can be obviously reduced; high-frequency detail reservation and low-frequency hue smooth transition are achieved through a frequency-band-divided texture fusion strategy, a high-quality texture source is optimized in cooperation with view angle cosine square weight and depth shielding detection, and fusion joints and detail dilution are avoided.

A facemask assembly can include an interior air filter that is replaceable and / or contains biocidal elements. The filter can capture exhaled H2O to activate silver ions creating a biocidal environment. In some embodiments, at least part of the facemask is made via additive manufacturing. A facemask frame assembly can create a pleated filter to increase surface area and bring the filter material closer to the mouth and nose. The facemask can include a facial skirt customized to the facial geometry of the wearer. The facemask can have a permanently sealed filter than can withstand boiling and autoclaving temperatures so the mask system can be sterilized without disassembly. In some embodiments, the facemask has a visible display of how many times the facemask has been sterilized. In some embodiments, the mask includes a RFID device that can transmit how many times the facemask has been sterilized.

Systems and methods to custom-design gaskets for a virtual reality (VR) interface, wherein the VR interface includes a head mounted display (HMD) to be worn by users are disclosed. Exemplary implementations may obtain facial geometry information for a user's face; generate a representation of the surface of the user's face, based on the facial geometry information; align the representation with a representation of the HMD; generate a model of a three-dimensional gasket that fits between the representation of the surface of the user's face and the representation of the HMD; export and / or present the model of the three-dimensional gasket; and / or perform other steps. Such custom-designed gaskets may provide an improved fit with better optical alignment when compared to mass-produced gaskets.

Abstract A patient interface, such as a nasal cannula, for delivering breathable gas to a user is disclosed. The interface includes a body configured to be positioned on a user’s face and one or more nasal prongs fluidly connected to a gas supply for insertion into, or directing gas toward, the user’s nares. The body incorporates at least one force- or movement-responsive element configured to react to forces or movements experienced in a first region of the interface. The element is deformable or articulated and operates to isolate, absorb, dampen, or otherwise reduce transfer of such forces or movements to other regions of the interface. This localised response stabilises the position of the nasal prongs relative to the nares, maintaining a desired therapy delivery configuration despite external disturbances or changes in facial geometry. The responsive element may comprise hinges, pivots, joints, or regions of preferential flexibility or deformation, and may be arranged, for example, in a bridge region between body portions. Multiple elements may be combined to provide coordinated responses. The interface thereby enhances comfort and positional stability during use. Abstract

The application discloses a kind of fusion visible light and infrared image live face detection method and system, it is first through parallel network in the extraction visible light and infrared feature, generate a face semantic mask chart that can accurately segment out eye, nose and other key areas simultaneously.Secondly, using the mask chart as anchor point, guide model to the regionalization feature pooling of visible light and infrared feature map, to obtain each semantic region independent, aligned feature vector.Finally, through cross-modal attention mechanism, these regional features are compared one by one, and through inconsistency amplification module to actively find and highlight the region that texture and temperature distribution do not match.This method forces the model to perform fine-grained logical verification, ensuring that the heat distribution accurately matches the facial geometry, thereby effectively identifying high-level fake attacks with temperature distribution that do not match real physiological features.