505 results about "Hand motion" patented technology

A simple user interface for touchless control of electrically operated equipment. Unlike other systems which depend on distance to the sensor or sensor selection this system depends on hand and or finger motions, a hand wave in a certain direction, or a flick of the hand in one area, or holding the hand in one area or pointing with one finger for example. The device is based on optical pattern recognition using a solid state optical matrix sensor with a lens to detect hand motions. This sensor is then connected to a digital image processor, which interprets the patterns of motion and outputs the results as signals to control fixtures, appliances, machinery, or any device controllable through electrical signals.

When a vehicle navigation system is manipulated by taking pictures of a user hand motion and gesture with a camera, as the number of apparatuses and operational objects increases, the associated hand shapes and hand motions increase, thus causing a complex manipulation for a user. Furthermore, in detecting a hand with the camera, when the image of a face having color tone information similar to that of a hand appears in an image taken with a camera, or outside light rays such as sun rays or illumination rays vary, detection accuracy is reduced. To overcome such problems, a manipulation input device is provided that includes a limited hand manipulation determination unit and a menu representation unit, whereby a simple manipulation can be achieved and manipulation can accurately be determined. In addition, detection accuracy can be improved by a unit that selects a single result from results determined by a plurality of determination units, based on images taken with a plurality of cameras.

A Micro Inertial Measurement Unit (IMU) which is based on MEMS accelerometers and gyro sensors is developed for real-time recognition of human hand motions, especially as used in the context of writing on a surface. Motion is recorded by a rate gyro and an accellerometer and communicated to a Bluetooth module, possibly to a computer which may be 20 to 30 feet or more from the sensor. The motion information generated and communicated is combined with appropriate filtering and transformation algorithms to facilitate a complete Digital Writing System that can be used to record handwriting on any surface, or on no surface at all. The overall size of an IMU can be less than 26 mm×20 mm×20 mm, and may include micro sensors, a processor, and wireless interface components. The Kalman filtering algorithm is preferably used to filter the noise of sensors to allow successful transformance of hand motions into recognizable and recordable English characters. The immediate advantage is the facilitation of a digital interface with both PC and mobile computing devices and perhaps to enable wireless sensing.

A system and method of enhancing guitar instruction based on Tablature Plus encoding of playing techniques within a MIDI file or other data structure, that may be rendered on an associated player application that provides multimedia output of the piece being played including a number of playing techniques. The system hardware for encoding the information includes string motion monitoring, and optionally a hand motion and finger positioning sensor, such as a data glove or a video motion capture system, for simultaneously registering the actions of the guitarist while playing the piece. The software comprises algorithms for determining note pitch and duration, and for extracting playing techniques from the data being collected. Multimedia player software is also described which renders a visual and audio output for the Tablature Plus encoded file, wherein the encoded playing techniques are represented within the display output. The system is adaptable to instruction for any instrument.

A liquid lens, according to the electrowetting principle, is used in an imaging system to affect the optical axis of the imaging system. In particular, a seal compartment having a first side and an opposing second side is used to dispose a liquid lens on the first side. A plurality of electrode areas are disposed adjacent to the first side and a common electrode is disposed adjacent to the second side. In order to compensate for undesirable image shifting due to hand motion, different voltage levels are applied to the plurality of electrode areas so that the electric field applied on the liquid lens is non-uniform, causing deformation of the liquid lens. The voltage levels are determined such that the shift in the optical axis due to the deformation of the liquid lens substantially cancels out the motion-induced image shift.

The invention relates to a robot remote control device and a robot system. The robot remote control device comprises a spectacle-frame type handset device and a ring controller, wherein the handset device is used for acquiring head motion data and eye motion data of a user, generating a corresponding control instruction according to the acquired head motion data and the acquired eye motion data and transmitting the control instruction; the ring controller is used for acquiring hand motion data of the user and transmitting the acquired hand motion data to the headset device; and the headset device generates a corresponding control instruction according to the acquired hand motion data and transmits the control instruction. In the robot system and the robot remote control device, the headset device is made into a spectacle-frame shape and is used for acquiring the head and eye motion data and generating the corresponding control instruction, the ring controller is used for acquiring the hand motion data and generating the corresponding control instruction, and the spectacle-frame type headset device and the ring controller worn on a finger are convenient to carry and control the robot by user operation.

The invention relates to a dexterous hand teleoperation control method based on Kinect human hand motion capturing. The hardware for realizing the method comprises a Kinect sensor, a computer and a remote robot dexterous hand system. A mixing movement outline model is used for tracking the outline of the hand, hand posture tracking is realized through a particle filter algorithm, the far-end situation is observed through feedback image information transmitted by a robot in real time, and therefore a specific operation task is implemented. Through the movement outline model combining depth information and YCbCr skin color detection space technology, the problem that a real solution can not be obtained easily when an image contains high noise or a target is provided with a weak boundary is solved. A particle filter posture detection method based on template matching is adopted, and the human hand three-dimensional posture with high-dimensional characteristics can be detected and estimated. Through a master-slave operation combining a manual control mode and a program mode, convenience and rapidness are realized, and the guiding performance and usability of human-machine interaction are represented.

The invention relates to a set of virtual performance system based on hand motion induction, which comprises a data acquisition glove, a machine vision module, a transmission module, a processing module and a peripheral device, wherein the data acquisition glove induces hand motion; the machine vision module induces hand position information; the transmission module transmits information acquired by the data acquisition glove and the machine vision module to the processing module; the processing module identifies the motion performed by a musical instrument from the received hand information, and generates performance sound and specific scene of the musical instrument; and the peripheral device feeds back the sound and the scene to an operator. The invention provides a virtual musical instrument for carrying out human-computer interaction by using the glove, which has the same or similar play skill as a real musical instrument, so that the operator can naturally and flexibly carry out virtual performance; and simultaneously the performance sound and the specific scene of the musical instrument are fed back to the operator, so that the operator can carry out performance more directly and naturally.

The invention relates to a split type minimally-invasive surgery instrument aid system, and solves the technical problems that in an existing minimally-invasive surgery operation process, operation ofa surgical tool is complicated, the flexibility is low, when a doctor operates the surgical tool, hand motion does not coordinate with eye motion, and when the hands of the doctor shake, the surgicalquality can be affected. The split type minimally-invasive surgery instrument aid system comprises a main operating console and a slave operating device, and the main operating console is used for collecting information of the hand motion of the doctor and controlling motion of the slave operating device. The split type minimally-invasive surgery instrument aid system is widely used in the technical field of medical devices.

A system and method of enhancing guitar instruction based on Tablature Plus encoding of playing techniques within a MIDI file or other data structure, that may be rendered on an associated player application that provides multimedia output of the piece being played including a number of playing techniques. The system hardware for encoding the information comprises a pickup head for registering string motion, and optionally a hand motion and finger positioning sensor, such as a data glove, for simultaneously registering the actions of the guitarist while playing the piece. The software comprises algorithms for determining note pitch and duration, and for extracting playing techniques from the data being collected. Multimedia player software is also described which renders a visual and audio output for the Tablature Plus encoded file, wherein the encoded playing techniques are represented within the display output.

In an apparatus and method for controlling an interface, a user interface (UI) may be controlled using information on a hand motion and a gaze of a user without separate tools such as a mouse and a keyboard. That is, the UI control method provides more intuitive, immersive, and united control of the UI. Since a region of interest (ROI) sensing the hand motion of the user is calculated using a UI object that is controlled based on the hand motion within the ROI, the user may control the UI object in the same method and feel regardless of a distance from the user to a sensor. In addition, since positions and directions of view points are adjusted based on a position and direction of the gaze, a binocular 2D/3D image based on motion parallax may be provided.

A system and method are disclosed for controlling presentations and videoconference using hand motions and/or laser dots from a laser pointer. A camera captures video of an area relative to content displayed on a display device from a content source. A control unit is communicatively coupled to the content source, the display device, and the camera. The control unit receives captured video from the camera. The control unit detects a hand motion by a presenter or a laser dot from a laser pointer that occurs within the captured video and determines the location within the captured video of at least one control for controlling the presentation or videoconference. The control unit determines if the detected hand motion or laser dot occurs within the determined location of the at least one control, and the control unit controls the content source based on the determined control.

Disclosed are a wearable mobile phone capable of detecting EMG changed by hand motion of a user and a control method of an input unit of the wearable mobile phone. The wearable mobile phone includes an EMG measuring unit 10 having a plurality of EMG measuring sensors 11 for detecting the EMG changed by hand motion of a user, and made in a ring shape to be worn on a wrist of the user, an EMG transferring unit 20 connected to the EMG measuring unit 10 for transferring the EMG measured by the EMG measuring unit, an EMG determining unit 30 mounted to one side of the EMG transferring unit 20 for receiving EMG from the EMG transferring unit to determine the hand motion and extract an input signal for the mobile phone corresponding to the hand motion, and a mobile phone functioning unit 40 receiving the input signal from the EMG determining unit for functioning the mobile function and having an antenna and a sound transferring device. The wearable mobile phone allows the user to input wanted information related to operation of the mobile phone, without using input keys, which can miniaturize the mobile phone and easily carry the mobile phone.

A system includes a wearable device including sensors arranged at different locations on the wearable device. Each sensor measures electrical signals transmitted from a wrist or arm of a user. A position computation circuit is coupled to the sensors. The position computation circuit computes, using information derived from the electrical signals with a machine learning model, an output that describes a hand position of a hand of the wrist or arm of the user.

The invention provides a novel movement imagery electroencephalogram control-based intelligent wheelchair system, and aims to provide a service auxiliary motion tool for paralyzed patients or elderly people and help them to take free activities outdoors. The system consists of a portable electroencephalogram acquisition system, a signal processing device, an interface circuit and an electric wheelchair, which are connected in turn. The portable electroencephalogram acquisition system is a set of simple and practicable electroencephalogram acquisition system and is used for recording electroencephalogram signals under user imaginary left and right hand motion tasks; the signal processing device is a signal processing module which operates on a laptop, extracts imagery motion-related electroencephalogram characteristics and identifies the subjective intention of the user; the interface circuit converts the identified subjective intention of the user into four paths of voltage signals; and the electric wheelchair receives the four paths of control voltage signals and controls the operating conditions of left and right rear wheel motors. The intelligent wheelchair system implementing mode can be applied to other application fields of direction control.

The invention relates to a method and a system for gesture recognition. The method comprises steps of transmitting a structure light plane through an infrared structure light transmitting unit; receiving an induced image formed by infrared light signals which are reflected by a user through an infrared structure light sensor; acquiring the depth information of the induced image through a depth image processing unit; selecting and recording the information, i.e., the hand motion track information, which is close to the infrared structure light transmitting unit of the depth information through a hand target following unit; and recognizing the hand motion track information through a gesture recognition unit and determining corresponding user gesture control commands. By the aid of the method and the system, the user dynamic hand gesture can be separated from a complex background, based on space direction dividing recognition, the gesture recognition is completed, the gesture modeling and learning process are not conducted in advance and the user experiment is improved.

An improved hand-worn signaling device is disclosed that comprises at least one light-emitting assembly on the palmar side of the hand and at least one light-emitting assembly on the dorsal side of the hand; in one embodiment of the invention, the palmar light-emitting assembly is red and the dorsal light-emitting assembly is green. One embodiment of the device also comprises a controller that detects hand motions by the user and activates the appropriate light-emitting assembly in response. In another embodiment, the controller detects the angle of the user's wrist or knuckles, and activates the appropriate light-emitting assembly depending on the angle of the user's joints. In another embodiment, the controller detects the spatial orientation of the user's hand, and activates the appropriate light-emitting assembly depending on whether the user's hand is positioned vertically with the fingers pointing straight up (the “stop” position) or in any other orientation. An interlock switch that prevents inadvertent activation, and a feedback device that enables the user to tell which light-emitting assembly is on, are also disclosed.

A walking rehabilitation and exercise machine in the form of an elliptical style machine closely replicates the mechanical foot motions of walking, while incorporating hand motion to help a disabled or injured person retrain muscles in a proper walking gait and improve physical fitness. The device includes an electrically adjustable seat, independent left or right electrically adjustable stride and an electric flywheel drive to assist the operator.