Qingdao Pico Technology Co., Ltd.

Hisense Broadband Multimedia Technologies Co., Ltd.

Qingdao Agricultural University

Tao Wu

Jianwei Mu

Qian Shao

Jihong Han

Guangchao Du

Yongzheng Tang

Sitao Chen

Shaoshuai Sui

Benzheng Dong

Fabu Xu

Bangyu Yu

Xiangxun Sun

Sigeng Yang

Peng He

Jun Wang

Liu Yang

Weiwei Liu

Honghao Jiao

Yongxin Yang

Honglong Zhu

Rongbo Fan

Hongning Jiang

Xiaxia Wang

Rongwei Han

Qijing Du

The present disclosure discloses an optical module including a circuit board and a light-emitting assembly. In the light-emitting assembly, a wavelength tuning mechanism is formed of a semiconductor optical amplification chip, a silicon optical chip and a semiconductor refrigerator. The semiconductor optical amplification chip may provide a plurality of wavelengths, and a wavelength selection is carried out by an optical filter in the silicon optical chip; a temperature adjustment for the optical filter is achieved by the semiconductor refrigerator, so as to further adjust a performance of the filter for wavelength selection. The above device is provided in a housing to facilitate packaging of the devices.

Optical module

A rapid cleaning system of milking cups in milking hall is provided. The rapid cleaning system includes a bottom plate, a supporting pipe fixed on the top of the bottom plate, a supporting positioning component fixed on the top of the supporting pipe, a lifting mechanism sliding sleeved with the supporting pipe, and a clamping and fixing mechanism connected to the outer ring of the supporting pipe and the supporting positioning component. A placing platform for the milking cup group is provided, in the process of placing the milking cup group, the milking cup group is cleaned and disinfected.

Rapid cleaning system of milking cups in milking hall

A method and apparatus for recognizing a three-dimensional gesture based on mark points, a device and a storage medium are provided. An image collected by each camera is acquired; for each image, an identifier and a corresponding two-dimensional coordinate position of each mark point in the image are determined; a three-dimensional coordinate position of each mark point in a coordinate system of a corresponding camera is determined according to the two-dimensional coordinate position of each mark point and a calibration parameter of the corresponding camera; the three-dimensional coordinate position is converted to an initial three-dimensional coordinate position in a coordinate system of the designated space; and a target three-dimensional coordinate position of each mark point in the coordinate system of the designated space is determined according to the initial three-dimensional coordinate position of each mark point in each image and the identifier of the corresponding mark point.

Method, apparatus and device for recognizing three-dimensional gesture based on mark points

An optical module includes a shell, a circuit board, a base, a laser assembly and a silicon optical chip. The laser assembly and the silicon optical chip are located on the base. The laser assembly includes an upper box, conductive substrates, laser chips and a light transmitting member. The upper box and the base are combined to provide a cavity. The cavity has an opening and a slot. The laser chips are located on the conductive substrates which are at least partially located in the cavity. The light transmitting member is disposed between the upper box and the base, and is configured to enclose the opening. Light exit surfaces of the laser chips are parallel to a light incident surface of the light transmitting member, and the light incident surface and a light exit surface of the light transmitting member are not parallel.

Optical module having laser chips illuminating a light transmitting member with a parallel incident surface and a non-parallel exit surface

An optical module includes a shell, a circuit board, a base, a laser assembly and a silicon optical chip. The circuit board is disposed between an upper shell and a lower shell of the shell. The base is located on the circuit board or in a through hole of the circuit board. The laser assembly and the silicon optical chip are located on the base. An upper box of the laser assembly and the base are combined to provide a cavity. Conductive substrates of the laser assembly are at least partially located in the cavity. Laser chips of the laser assembly are located on the conductive substrates. An opening of the cavity is located in an optical path where light emitted by the laser chips is emitted to the silicon optical chip, and a slot of the cavity allows the conductive substrates or wires to extend out of the cavity.

Optical module with slotted laser assembly box

An optical module includes a shell, a circuit board, a base, a laser assembly, a silicon optical chip and a protective cover. The laser assembly and the silicon optical chip are located on the base. The protective cover covers on the circuit board. The laser assembly and a wiring region of the laser assembly and/or the silicon optical chip and a wiring region of the silicon optical chip are encapsulated between the protective cover and the circuit board. The shell includes at least one heat conduction column, the at least one heat conduction column is disposed on an inner wall of the shell and is in thermal conductive connection with the laser assembly and/or the silicon optical chip. The protective cover includes at least one escape opening that allow the at least one heat conduction column to pass and enter an inside of the protective cover.

Optical module with structured protective cover

An optical module includes a circuit board, a light transmit-receive device and a data processor. The light transmit-receive device includes a first laser array, a first detector array and a first lens assembly. The first laser array is disposed on the circuit board, and is configured to emit a plurality of channels of optical signals driven by the plurality of channels of low-speed electrical signals. The first detector array is disposed on the circuit board, and is configured to receive the plurality of channels of optical signals from outside of the optical module, and convert the plurality of channels of optical signals into a plurality of channels of electrical signals. The first lens assembly covers the first laser array and the first detector array, and is configured to change a propagation direction of optical signals incident into inside of the first lens assembly.

The present application discloses a method, a device for gesture recognition and an electronic equipment. The method includes: receiving a first gesture trajectory input by a user; obtaining a target scene category according to the first gesture trajectory, wherein the target scene category represents a category of an interactive scene in which the user is located; and obtaining one or more target gesture instructions according to the target scene category and the first gesture trajectory.

Method, device for gesture recognition and electronic equipment

An optical module includes a circuit board, a light emitting device and a data processor. The data processor is disposed on the circuit board. The data processor includes a reverse gearbox and a gearbox. The reverse gearbox is connected to the light emitting device, and is configured to receive a high-speed electrical signal from the circuit board, and decode the high-speed electrical signal into a plurality of channels of low-speed electrical signals. The plurality of channels of low-speed electrical signals drive the light emitting device to emit the plurality of channels of optical signals. The gearbox is connected to the light receiving device, and is configured to receive a plurality of channels of low-speed electrical signals output by the light receiving device, encode the plurality of channels of low-speed electrical signals into a high-speed electrical signal, and transmit the high-speed electrical signal to the circuit board.

An optical module includes: a circuit board with a recess; a laser box disposed in the recess and electrically connected to the circuit board; a fiber ribbon, wherein one end of the fiber ribbon is connected to the laser box; and a silicon photonic chip electrically connected to the circuit board and to the other end of the fiber ribbon. The laser box includes: a flat base disposed in the recess, with one end of the flat base being coupled to the fiber ribbon; a conductive substrate disposed at the other end of the flat base and electrically connected to the circuit board; a laser chip attached on the conductive substrate; and an upper cover including a top plate and side plates, so that the upper cover caps/is covered on the flat base. A fitting between the flat base and the upper cover facilitates assembly of the conductive substrate and the laser chip in the laser box.

The present disclosure discloses a multi-sensor handle controller hybrid tracking method and device, wherein the method includes: acquiring tracking data of a handle controller, the tracking data including optical tracking data, electromagnetic tracking data, and inertial navigation data; constructing a state transition model and an observation model of an extended Kalman filtering iteration strategy according to the tracking data, and performing an extended Kalman filtering fusion on the optical tracking data, the electromagnetic tracking data, and the inertial navigation data; and determining position and orientation information of the handle controller in a space according to the extended Kalman filtering iteration strategy.

Multi-sensor handle controller hybrid tracking method and device

A method and apparatus for determining an exposure parameter of a head-mounted device, and a device are provided. The method includes: acquiring an average real brightness value of a region of interest of the image of the current frame; determining an average predicted brightness value of a region of interest of an image of a next frame if the average predicted brightness value is smaller than a lower limit of a first preset threshold range, sequentially selecting exposure parameter values equal to or greater than a current exposure parameter value, in a target exposure list to form a target exposure sub-list; and if the average predicted brightness value is greater than or equal to an upper limit of the first preset threshold range, sequentially selecting exposure parameter values equal to or smaller than the current exposure parameter value in the target exposure list to form a target exposure sub-list.

Method and apparatus for determining exposure parameter of head-mounted device, and device

A six degrees of freedom (6 DoF) positioning tracking device and method, and an electronic apparatus are provided. The device includes at least three tracking cameras, an inertial navigation unit and a computation processing unit, where the at least three tracking cameras are distributed at preset angles and are configured to obtain image data in a current environment and transmit the image data to the computation processing unit; the inertial navigation unit is configured to obtain state information of the 6 DoF positioning tracking device in the current environment and transmit the state information to the computation processing unit; and the computation processing unit is configured to determine 6 DoF data of the 6 DoF positioning tracking device relative to the current environment according to the image data and the state information.

6DoF positioning tracking device and method, and electronic apparatus

The disclosure provides a gesture recognition method and device, a gesture control method and device and a virtual reality apparatus, the gesture recognition method includes: obtaining a hand image, acquired by each lens of a binocular camera, of a user; recognizing, through a pre-constructed recognition model, a first group of hand bone points from the obtained hand image, to obtain a hand bone point image in which the first group of recognized hand bone points is marked on a hand region of the hand image; obtaining, according to the obtained hand bone point image, two-dimensional positional relations and three-dimensional positional relations between various bone points in a second group of hand bone points as hand gesture data of the user; and recognizing a gesture of the user according to the hand gesture data.

Gesture recognition method and device, gesture control method and device and virtual reality apparatus

Examples are disclosed that relate to controlling of a handle controller in the technical field of virtual reality. In an example, the handle controller includes a handle body and a plurality of light-emitting units coupled to the surface of the handle body, and a method includes: acquiring tracking information obtained by tracking the handle controller in a first time period, wherein the tracking information includes: pose information, position information and acceleration; predicting the motion information of the handle controller in a second time period according to the tracking information, wherein the second time period is located after the first time period; and adjusting the parameter values of light-emitting parameters of the plurality of light-emitting units in the second time period according to the motion information.

Growing community of inventors

Shandong, China

Tao Wu