15 results about "Haptic rendering" patented technology

In an example haptic rendering method, an implicit neural representation model of haptic data is obtained. An interaction input is provided to the model, the interaction input including at least a starting point, a direction, and a speed. An interaction output is obtained from the model, where the interaction output represents a value of at least one haptic parameter at each of a plurality of points along a trajectory defined by the interaction input.

The invention relates to the technical field of medical simulation, in particular to an ablation needle puncture training auxiliary system, and aims to solve the problems of insufficient tactile feedback and low fineness when an existing ablation needle puncture training system simulates a needle tip to penetrate through multiple layers of biological tissues so as to improve the'needle feeling 'cognition and fine operation skills of doctors. The system is characterized by comprising a physical interaction module, a virtual simulation module, a central processing module and a visual presentation module, a high-fidelity virtual tissue model is constructed, real-time multi-mode tactile feedback is combined, and an accurate needle-tissue interaction mechanical simulation and multi-dimensional tactile rendering algorithm is adopted. By the adoption of the technical scheme, the problem of a touch gap is effectively solved, the authenticity and effectiveness of simulation training are improved, and the precision and safety of clinical puncture operation are remarkably improved.

Systems and methods are presented herein for balancing rendering of haptics and graphics of a version of media content from a server at a client device. At a server, a request is received for a media asset for interaction on a haptic enabled device. Based on the request, haptic feedback settings of the haptic enabled device associated with the request are determined. The server transmits to the haptic enabled device a version of the media asset comprising haptic feedback rendering criteria compatible with the haptic enabled device. The version of the media asset is comprised of graphics and haptics rendering criteria transmittable over a current network connection strength between the server and the haptic enabled device and also incorporates user interaction data. The haptic enabled device renders the version of the media asset based on the haptic feedback settings.

A haptic rendering device and corresponding rendering method allow to render a haptic effect defined in a haptic signal comprising information representative of an immersive scene description. The immersive scene comprises information representative of at least one element of the scene and information representative of a haptic object, comprising a type of haptic effect, at least one parameter of the haptic effect, and a haptic volume or surface where the haptic effect is active. The parameter of the haptic effect may be a haptic texture map. A corresponding syntax is proposed.

This invention relates to a head-mounted haptic rendering method and its implementation device, belonging to the field of haptic feedback technology in human-computer interaction. It includes controlling m-linear vibrators positioned in the forehead region of a head-mounted support structure via a control module; generating corresponding driving signals according to a preset haptic rendering mode, the driving signals including driving frequency, driving voltage, and time delay parameters; controlling each linear vibrator to vibrate according to the driving signals to render a haptic effect with spatial direction and positional awareness in the user's forehead region. Advantages include achieving directional frictional haptic rendering, multi-position collision haptic positioning, enhanced haptic realism and immersive experience, flexible control, strong scalability, novel structure that is easy to implement and integrate, good engineering feasibility, and applicability in fields such as virtual reality, augmented reality, human-computer interaction, gaming, and remote interaction, demonstrating high application value and promotion potential.

A haptic rendering device and corresponding rendering method allow to render a haptic effect defined in a haptic signal comprising information representative of an immersive scene description. The immersive scene comprises information representative of at least one element of the scene and information representative of a haptic object, comprising a type of haptic effect, at least one parameter of the haptic effect, and a haptic volume or surface where the haptic effect is active. The parameter of the haptic effect may be a haptic texture map. A corresponding syntax is proposed.

A data structure storing information representative of an immersive experience comprises information representative of the haptic capabilities of a reference haptic rendering device. Therefore, haptic signals may be adapted to the capabilities of a different rendering device with different haptic capabilities. Such adaptation may be performed directly at the rendering stage by the rendering device itself. A transcoding process allows the generation of a new data structure for a rendering device with different haptic capabilities.

This invention discloses a human body surface palpation simulation training system based on multimodal AI interaction, belonging to the fields of medical simulation training and human-computer interaction technology. The system includes: a photoelectric-triboelectric fusion tactile perception and feedback unit, a palpation-specific micro-tactile feature library, an AI dynamic tactile rendering engine, and a hardware clock synchronization module. The photoelectric-triboelectric fusion tactile perception and feedback unit integrates modules such as multispectral imaging, synchronously collects four types of palpation data, and generates corresponding feedback. The feature library stores multi-dimensional features of real clinical palpation. The AI ​​engine is based on the Transformer architecture, combines the collected data and the feature library, and generates driving signals through calculation formulas. The synchronization module uniformly controls the sampling timing of each module. This invention integrates multiple modules to synchronously collect multi-dimensional palpation data, constructs a real clinical palpation feature library, and combines a customized AI algorithm that is deeply integrated with hardware to achieve high-fidelity, low-latency three-dimensional tactile simulation, ensuring the consistency of tactile feedback across different devices.

The invention relates to the technical field of cooking robots, and discloses a cooking robot-oriented real-time 3D sensing and decision-making service platform, which comprises a sensing layer, a data fusion layer, a decision-making layer, a vibration feedback closed-loop touch rendering and action fine tuning layer and a mechanical arm controller. The sensing layer synchronously collects optical 3D point cloud and acoustic vibration data; the data fusion layer extracts vibration characteristics, calculates a hardness index and humidity estimation, and forms an attribute enhanced point cloud; the decision-making layer outputs initial action parameters through a finite state automaton based on the geometric and vibration characteristic change rate; the fine tuning layer verifies correction parameters through active excitation and response; and the mechanical arm executes and feeds back data to form continuous closed-loop control. According to the invention, the bidirectional piezoelectric element is introduced through the sensing layer to collect acoustic vibration data, so that the effect of expanding the sensing ability to the internal elasticity and moisture change of the food material on the basis of the traditional optical 3D point cloud can be achieved.

A wearable, low power, compact ultrasonic haptic device that focuses ultrasound at or below the skin's surface using a piezocomposite transducer consisting multiple arrayed acoustic pixels, each acoustic pixel comprising an array of piezocomposite pillars separated by an epoxy and topped by a metal electrode. The high efficiency of the piezocomposite transducer facilitates sufficient production of ultrasonic energy directed at a focal point at or below the surface the skin to stimulate a tactile sensation.

A haptic rendering system and a haptic rendering method. The haptic rendering system comprises a display panel, a touch structure, a piezoelectric actuator, and a control module; the touch structure is located on the display panel and is configured to detect a touch position of a touch operation; the piezoelectric actuator is located on the display panel; the control module is communicationally connected to the display panel, the touch structure, and the piezoelectric actuator, separately; and the control module is configured to extract the touch position detected by the touch structure, determine a touch mode of the touch operation according to a change in the touch position, and output different driving voltages to the piezoelectric actuator according to the touch mode, so that the piezoelectric actuator drives the display panel to generate different vibrations, thereby achieving different haptic rendering effects. Therefore, the haptic rendering system can improve the realism of human-computer interaction and the immersive experience of a user.

The invention discloses a wearable multi-mode tactile rendering device, system and method, and belongs to the field of tactile feedback, and the device processes a to-be-rendered multi-channel multi-mode tactile signal through a main controller, converts the to-be-rendered multi-channel multi-mode tactile signal into a control instruction for driving a vibration feedback module and a force feedback module, and outputs the control instruction to the vibration feedback module and the force feedback module. The main controller has the functions of data analysis, time sequence management, synchronous scheduling and the like at the same time, and a multi-channel multi-mode tactile signal to be rendered can be quickly mapped into tactile output in the wearable glove through the main controller, so that real-time interaction of a virtual object or a remote operation environment is realized; a nonlinear vibration signal processing method is adopted by the main controller, and the problem of perception distortion caused by linear mapping of vibration signals is solved; a unified scheduling mechanism is adopted, a time synchronization constraint mark is introduced, the consistency of vibration feedback and force feedback in a time domain is ensured, and the problem of time sequence mismatch caused by multi-mode independent control is solved.

This invention provides a haptic rendering device and a corresponding rendering method. [Solution] The device and method enable rendering of tactile effects defined in a tactile signal that includes information representing an immersive scene description. The immersive scene includes information representing at least one element of the scene, and information representing a tactile object, including the type of tactile effect, at least one parameter of the tactile effect, and a tactile volume or surface on which the tactile effect is active. The parameter of the tactile effect may be a tactile texture map. A corresponding syntax is proposed.

This invention proposes an embodied interactive smart accessory system based on affective computing and haptic feedback. It comprises a wearable biofeedback and haptic interaction device, a mobile computing device, and a cloud device. The wearable biofeedback and haptic interaction device is responsible for collecting data from electrical activity data (EDA), photoplethysmography (PPG), and inertial measurement unit (IMU), and executing haptic rendering commands. The mobile computing device handles Bluetooth communication, signal preprocessing, affective feature extraction, haptic rendering algorithm calculation, and communication with the cloud device. The cloud device runs a large language model, receives affective vectors, and generates personalized content. This invention addresses the lack of human touch in AI interaction by introducing an affective computing closed loop; and it resolves safety concerns in outdoor AR experiences through spatialized haptic navigation. This design aligns more closely with the scientific principles of embodied cognition, providing a more natural interface for human-machine symbiosis.