97 results about "3d sensing" patented technology

Information from execution of a vision processing module may be used to control a 3D vision system.

This invention relates to one mobile robot 3D sensor method, which comprises steps of environment information acquiring, environment information self adapting filter, environment coordinate exchanging and 3D sensing. This invention gets robot environment information through one sense platform composed of 2D laser radar, rotation bench and step motor. This invention also provides one dynamic self-adaptive filter to realize dynamic filter noise removing aim for environment information interference.

A mobile device has an inertial measurement unit (IMU) that senses linear and rotational movement, a touch screen including (i) a touch-sensitive surface and (ii) a 3D sensing unit, and a state change determination module that determines state changes from a combination of (i) an output of the IMU and (ii) the 3D sensing unit sensing the hovering object. The mobile device may include a pan/zoom module. A mobile device may include a natural language processing (NLP) module that predicts a next key entry based on xy positions of keys so far touched, xy trajectory of the hovering object and NLP statistical modeling. A graphical user interface (GUI) visually highlights a predicted next key and presents a set of predicted words arranged around the current key above which the object is hovering as selectable buttons to enable entry of a complete word from the set of predicted words.

An approach is provided for detecting EM waves using a photodetector coupled to an amplifier stage. The amplifier stage uses capacitive feedback to reduce or cancel intrinsic capacitance of the photodetector. A variety of capacitance structures may be used to provide the capacitive feedback such as shielded capacitors and capacitor arrays. The amplifier stage may be either single-ended or fully differential, depending upon the requirements of a particular application. Noise cancellation circuitry may also be included to reduce noise and offset sources present in the amplifier stage. The approach is applicable to a variety of contexts and applications. Example applications include, without limitation, detection of both brightness and Time of Flight (TOF) in 3D sensing applications. The approach may also be used to detect EM wave intensity in 2D sensing systems and, in general, for any application requiring simultaneously high speed and high sensitivity EM detection.

An apparatus and method for controlling an object are provided. Motions of fingers present in a 3-dimensional (3D) sensing area are detected, and a pointer or an object being displayed is controlled corresponding to the detected motions. Therefore, input of a control signal may be achieved without a direct touch on a display device such as a terminal, thereby preventing leaving marks on a screen of the display. In addition, since the motions of fingers are detected within the 3D sensing area, not on a 2-dimensional (2D) plane, more types of input motions may be used.

The present invention relates to the real-time measurement method of the 3D profile and deformation of object in high speed motion based on stroboscopic light source projecting structure in Fourier transformation contour process in 3D sensing technology. Equilateral grating structure modulating template is imaged on the moving object surface instantaneously with stroboscopic light source, serial deformation stripe patterns in different times are recorded with video camera, the deformation stripe patterns are then processed via Fourier transformation process to restore the 3D profiles of the moving object in different times precisely, and digital information, such as object deformation, etc. may be obtained through further data analysis. The real-time measurement method may be used in measurement and research of various periodic motion and non-periodic motion, and has the advantages of being precise, fast and timely.

A detector for determining a position of at least one object, in particular for 3D-sensing concepts, is disclosed. The detector comprises a longitudinal optical sensor (110) for determining a longitudinal position of an object by a light beam traveling from the object to the detector and a transversal optical detector (112) which may be designed as an imaging device or a position sensitive detector. The longitudinal sensor (110) has at least two PN structures or PIN structures (138, 140). Each of the PN structures or PIN structures is located between two electrode layers (144), thereby forming photodiodes (146) having a longitudinal sensor region (148) each. Longitudinal sensor signals from the photodiodes (146) are, given the same total power of illumination, are dependent on a beam cross-section of the light beam in the longitudinal sensor regions (148). As an alternative, instead of the transversal optical detector (112) the photodiodes (146) of the longitudinal optical sensor (110) may be adapted to operate as one-dimensional position sensitive detectors each, for determining a transversal x-coordinate and a transversal y-coordinate, respectively.

The invention provides a method for reducing frame crosstalk of a 3D television. The method comprises the following steps of: carrying out odd or even line separation on each video frame to expand each video frame into two video frames; increasing the refresh rate of a display system by over one time; and outputting the expanded video frame image. The synchronous display of a 3D two-frame image corresponding to the parity line is changed into asynchronous display, so that the crosstalk at the junction of the parity lines is effectively avoided, the thorough separation of an image signal optical path system transmitted by the parity line is realized, the 3D display effect is effectively improved, the 3D sense judgment of a user is enhanced and the comfortableness for watching is improved.

The invention relates to a wavelength conversion system used for streak tube laser radar 3D multispectral sensing, in particular to a multispectral sensing wavelength conversion system based on an optical fiber array and belongs to the field of photo-electronic imaging. The multispectral sensing wavelength conversion system based on the optical fiber array comprises a receiving optical system, a spectro-grating, a spatial light modulator, the optical fiber array, a micro-lens array, a APD array, a transimpedance amplifier array, a differential receiving amplifier array, a vertical cavity surface laser array and a computer. The problem of manufacturing of a large-array detector is solved by introducing the spatial light modulator and the optical fiber array, and the crosstalk influence generated when all channels of a photo-electronic detector receive echo pulses is reduced. According to the multispectral sensing wavelength conversion system, the echo signals of different wavelengths are converted into peak-wavelength signals which a streak tube positive electrode material can respond to, multi-wavelength conversion for streak tube laser radar multispectral sensing is achieved, and the multispectral sensing wavelength conversion system can be widely applied to the multispectral 3D sensing imaging technology.

The invention is a domain uniqueness-based method for realizing high efficiency structural light, producing a high efficiency coding phototemplate for a light projector in the structural light system and using the phototemplate for 3D reconstruction and comprising the steps of: (1) selecting different colors to compose a code set; (2) selecting elements from the code set, expressing each optical lattice by one color, making special code combination to produce the phototemplate and composing adjacent optical lattices into a coded word, which has the domain uniqueness; (3) corresponding the coded words to input and output beams of the light projector one to one; (4) corresponding the obtained image to the phototemplate to calculate the 3D coordinates. And a device for realizing the high efficiency structural light comprises light projector, vidicon and microprocessor, where the microprocessor comprises color set module, coding module, code word decoding module and 3D coordinates calculating module. The invention has high 3D sensing speed, high reconstructing efficiency and low use cost.

A method for preparing the stereoscopic artistic picture features that the computer is used for painting, spray painting, or printing, and its raw material is a combination of the soft material (paper, cloth, or leather) and the plastic metallic sheet (aluminum sheet or iron sheet), resulting in low cost, high preparing speed, and strong 3D sensing.

The invention relates to a laser sensor package structure. The laser sensor package structure comprises a PCB substrate, a vertical-cavity surface-emitting laser chip, a base, and a diffractive optical element (DOE), wherein the vertical-cavity surface-emitting laser chip is attached to the PCB substrate, the base is installed above the PCB substrate, the vertical-cavity surface-emitting laser chip is at the lower part inside the base, a placement cavity for placing the DOE is arranged above the base, the bottom of the placement cavity is provided with a glue tank for pasting the DOE through glue, a flange higher than the bottom of the glue tank is formed inside the glue tank, and the DOE is placed in the placement cavity and then is pasted and fixed through glue in the glue tank. The gluetank and the flange cooperate with each other so as to prevent glue overflow, deviation and inclination, and laser emitted by the chip is guaranteed to be emitted vertical to the DOE, use demands like human face recognition and 3D sensing are met, and air holes can release expansion gas effectively so as to prevent base cracking to cause DOE inclination.

The invention relates to a probe sensing method and device based on the light beam scanning confocal detection technology, and belongs to the technical field of size measurement. A laser beam is input into a fiber probe at the inlet end of the fiber probe via a lens, the input beam is reflected by a fiber grating structure in the fiber probe and then output at the inlet end of the fiber probe, the output beam of the fiber probe is focused to photoelectric detectors via the output beam, so that the transverse photoelectric detector is used to detect the position of focused light spots and further to detect the transverse displacement of the probe, the axial photoelectric detector is used to detect the light intensity of the focused light spots and further to measure the axial displacement of the probe, and thus, 3D sensing is completed. The method and device are characterized in that the probe is convenient to prepare and easy to realize miniaturization, the detected light intensity is high, the light intensity is easy to detect, 3D detection and demodulation are realized, and the resolution is high.

Provided is a 3D depth sensing system and method of providing an image based on a hybrid sensing array. The 3D sensing system including a light source configured to emit light, a hybrid sensing array comprising a 2D sensing region configured to detect ambient light reflected from an object and a 3D depth sensing region configured to detect the light emitted by the light source and reflected from the object, a metalens on the hybrid sensing array, the metalens being configured to direct the ambient light reflected from the object towards the 2D sensing region, and to direct the light emitted by the light source and reflected from the object towards the 3D depth sensing region, and a processing circuit configured to combine 2D image information provided by the 2D sensing region and 3D information provided by the 3D depth sensing region to generate a combined 3D image.

The invention discloses a vision following method based on monocular gesture recognition. Through the recognition for a feature gesture, an accurate space bias rate of a robot and an initial position is acquired in real time, the accurate tracking is easily realized and the following action is more natural. An accurate distance between a tracking object and the robot is acquired under an initial state; through the recognition for the feature gesture, an accurate relative distance between the robot and people can be acquired in real time; the tracking precision is relatively high. According to the following method, the accuracy rate is higher than the accuracy rate of color lump following; the cost of the following method is greatly lower than that of a 3D sensing scheme; the tracking accuracy is greatly improved; the user interaction is smooth; the operation key points can be easily mastered; the use is convenient.

The invention relates to the technical field of garment processing and discloses a suit jacket production process. The process comprises the steps as follows: (1) fabric processing; (2) tailor forming; (3) jacket body sewing; (4) shoulder seaming; (5) pocket production; (6) sleeve seaming; (7) shoulder pad stitching; (8) lining cloth combination. During shoulder seaming, 1 cm straight silk insertion strips are printed and bonded at the front neck, lapel, lapel turning position and forking position according to net lines, odd-numbered marking lines with bright colors penetrate through the straight silk insertion strips and parallel to one another, and 1 cm main and auxiliary insertion strips are bonded at the back neck. During sewing, folds are produced due to tension of threads, the threads can act on the insertion strips due to addition of the insertion strips, the straight silk insertion strips and main and auxiliary insertion strips adopted in the scheme can have setting and anti-fold functions, so that deformation of sewn parts can be prevented, and stiffness and 3D sense of a suit are enhanced.

Depth cameras may be placed within an elevator car hoistway to capture depth images of the elevator rope. 3D sensing software may be used to identify the rope within the depth images and assign tracking points to locations along the rope. Tracked images are saved over time and compared to prior tracked images to determine the movement of tracked points between images. Movement of tracked points may be used to determine the velocity, acceleration, frequency of wave motion, and other characteristics of the rope during a period of time. When measured characteristics exceed specified thresholds, the system may take one or more actions to mitigate the undesirable behavior or provide notification of the undesirable behavior.

A time-of-flight 3D imaging system includes a time-of-flight measurement device, an illuminator, and an imaging sensor. The illuminator and the imaging sensor have adjustable optics to vary the field of illumination of the illuminator and the field of view of the imaging sensor.

The present invention relates to the field of robot technology, and in particular discloses an adaptive flexible medical care robot system, which includes a torso, at least a pair of mechanical arms, a base that can move in all directions at the bottom of the torso, and a 3D sensing function on the torso. Navigation operating system; the navigation operating system is connected to the base, and the torso is provided with a driving combination connected to the mechanical arm. The invention can replace medical staff to carry patients, transport medical supplies, etc., and reduce the workload of medical staff.

The invention discloses a hazardous and harmful gas detecting device and a using method thereof, and relates to the technical field of hazardous and harmful gas detecting. The hazardous and harmful gas detecting device provided by the invention comprises a detector and a controller, wherein the detector is an unmanned aerial vehicle (UAV) flight detecting device; the detector comprises a housing;a toxic gas detecting and alarming instrument is fixed on an inner surface of the housing; a combustible gas detecting and alarming instrument is fixed on the inner surface of the housing; a detectionswitching circuit is fixed on the inner surface of the housing; and a signal transmitting circuit is fixed on the inner surface of the housing. According to the invention, the detecting device is designed as a structure of combining UAV detection with remote control; a flight positioning system is composed of a smart chip, a GPS positioning system, a 3D sensing system, a visual positioning systemand an inertial measurement unit (IMU), and is cooperated with the controller to perform remote control, so that the hazardous and harmful gas detecting device can detect hazardous and harmful gasesin different height spaces, improves credibility of a detection range and detection results, ensures safety of personnel, and is flexible and convenient to use.

A method and an apparatus for measuring a distance of an object. For achieving this, a first light source(102a, 202a) and a second light source(102b, 202b) can be configured to emit first light and asecond light toward the object to illuminate the object. The emission of the first light and second light can be configured such that the two lights converge at a first point and diverge at a second point. An optical sensor(100, 200, 700) can be used to capture a first image of the object illuminated by the first light, and capture a second image of the object illuminated by the second light. An image difference between the first image and the second image of the object can be determined. The distance of the object with respect to the first point can then be determined based on the image difference and a distance difference between the first point and the second point.

The invention relates to a gesture recognition device comprising a control module; a gesture sensing module which is used for collecting the position data of the user gesture; a computing module whichis used for analyzing and processing the position data of the user gesture and other data; a gesture recognition module which is used for recognizing the user gesture according to the position data of the user gesture; and a communication module, wherein the gesture sensing module comprises a 3D sensing device.