23 results about "Information optics" patented technology

The invention discloses a pure phase hologram coding method based on an unsupervised learning neural network, and belongs to the technical field of information optics, and the method comprises the steps: obtaining and preprocessing an original target image, taking the intensity of the original target image as the amplitude, and constructing a complex amplitude matrix through combining with an initial phase; randomly selecting parameters from the wavelength training table and the propagation distance training table, and propagating the complex amplitude matrix by adopting an angular spectrum diffraction algorithm to generate a complex amplitude hologram; inputting the hologram into a POH-Net deep neural network model, extracting features and mapping the features into a pure phase hologram; and according to the pure phase hologram, reconstructing an image by using reverse angular spectrum propagation, and optimizing network parameters by using an Adam optimizer by taking the loss between the amplitude of the image and the amplitude of the original target as a loss function until convergence. The method supports rapid pure phase hologram generation in complex scenes of multiple wavelengths, multiple distances and the like, and provides effective technical support for practical application of holographic display and a high-performance CGH system.

The present application relates to the field of information optics, more particularly, to a spatial structure vertical focal field generation method and system. The present application provides a spatial structure vertical focal field generation method, according to the constructed phase map of the spatial structure vertical focal field, the incident light beam is modulated into a cylindrical wave light beam at the light beam modulation, and then the cylindrical wave light beam is focused to generate a spatial structure vertical focal field. Wherein, the phase map only needs to be calculated according to the superposition of the column lens phase or the column lens phase and the flash grid phase, and the calculation amount and calculation time are obviously reduced compared with the iterative calculation of the existing method. The present application solves the problems of large calculation amount and long time consumption of the existing method for generating a spatial structure vertical focal field.

An image processing method is configured to generate an image of an object using an imaging system in virtual space. A unique characteristic of the imaging system is associated with an NFT recorded on a blockchain. The image processing method includes acquiring a characteristic of an optical system included in the imaging system and spatial information on the object and the imaging system; and generating the image using information on the object, the characteristic of the optical system, and the spatial information.

Cookware (1) comprising a cookware body (2) and an electronic device (3) with electronic components (13). At least one electronic component (13) is designed as a display device (6) for the optical display of information. The cookware body (2) comprises a base (12), a wall (22), and a receiving volume (32). The cookware body (2) has, at least partially, a translucent inner layer (9) on an inner surface facing the receiving volume (32). The display device (6) causes an optical display of information on the inner layer (9) so that the information is visible from the receiving volume (32).

Disclosed is a method and a device for rapidly measuring the transmission matrix of an ultra-long optical fiber, belonging to the field of information optics. The solution couples the spatial mode into ultra-long few-mode / multi-mode optical fiber for transmission. By obtaining the common path reference light at the output end of the ultra-long few-mode / multi-mode optical fiber and interfering with the signal light at the output end, the complex amplitude distribution of the signal light field output by the optical fiber is reconstructed, weight coefficients of different modes are obtained by performing overlapping integral on the complex amplitude distribution and the ideal complex amplitude distribution of different spatial modes. The transmission matrix of the ultra-long few-mode / multi-mode optical fiber can be obtained by rapidly switching the mode incident into the ultra-long few-mode / multi-mode optical fiber and sequentially calculating the weight coefficients of the different modes at the output end.

This invention provides an augmented reality system adapted to low-light night vision goggles. The system includes: low-light night vision goggles and an augmented reality device disposed behind the low-light night vision goggles. The augmented reality device includes: a camera module for acquiring scene information; a computing module for generating augmented information based on the scene information; a display module for displaying the augmented information; and an optical module for combining a first ray of light from the objective lens of the low-light night vision goggles (which generates the image formed by the goggles) and a second ray of light generated from displaying the augmented information, converging and presenting them in the human eye. Using this invention, visual perception capabilities under low-light night vision goggles can be improved.

The invention provides an image processing method, device and system and a storage medium, the image processing method is applied to the image processing system, and the image processing system comprises a visual imaging module and a data processing module; the visual imaging module is connected with the data processing module; the visual imaging module comprises a zoom lens group, a micro-nano optical device and an image sensor which are sequentially adjacent in the optical axis direction; the image processing method comprises the following steps: determining an image of a target object through a visual imaging module; the image of the target object is obtained by transmitting light rays emitted by the target object or reflected light rays to the image sensor after the light rays are acted by the zoom lens group and the micro-nano optical device; performing data analysis on the image of the target object through a data processing module to obtain optical information of light of the target object; the optical information comprises at least two of the light intensity, the spectrum, the polarization and the direction of the light, so that the convenience of acquiring the multi-dimensional optical information of the light of the target object by the image processing system is improved.

The utility model relates to the technical field of touch screen detection, in particular to a touch screen flatness efficient detection device which comprises a main body, the top of the main body is fixedly connected with a longitudinal moving assembly, and the side face of the longitudinal moving assembly is fixedly connected with a transverse moving assembly. The laser beam emitted by the laser transceiver is irradiated on the surface of the touch screen, the reflected light is received by the internal receiver, the height information of the surface of the touch screen is calculated by measuring the angle change between the laser beam and the receiver, and the optical measurement technology has the characteristic of high precision. The device can accurately measure the tiny height change of the surface of the touch screen, guarantees the reliability of a detection result, avoids the contact with the surface of the touch screen through a non-contact measurement mode, does not cause any damage to the touch screen, carries out the position adjustment of a measurement unit through a longitudinal moving assembly and a transverse moving assembly, and improves the measurement precision. The two moving modes both adopt a lead screw transmission mode, so that the scanning path of the measuring unit on the surface of the touch screen can be accurately controlled.

The invention relates to a rapid hyperspectral light field Raman body imaging system and method, and the system employs wide-field imaging, combines a multi-dimensional information coding unit with a CCD detector, carries out the integrated coding of the panoramic depth information of a sample, and employs an adjustable spectrum filtering sub-module to achieve the integrated coding of the panoramic depth information of the sample. And high-quality acquisition of three-dimensional space and Raman hyperspectral information under the wavelength required by the sample can be realized only by single exposure. According to the imaging method, a light field Raman body imaging algorithm is provided, data priori of different stages in the light field imaging process is constructed respectively, and the training processes of light field denoising, a supramolecular network and a three-dimensional reconstruction sub-network are guided in sequence, so that rapid and high-fidelity isotropic resolution three-dimensional reconstruction of a low-signal-to-noise-ratio light field image is realized. According to the method, a multi-dimensional image rapid and high-resolution three-dimensional visualization processing technology system integrating traditional optics, information optics and computational optics is constructed, the imaging efficiency and precision are remarkably improved, and efficient three-dimensional information capture and high-quality reconstruction are achieved.

Technology described herein includes a method that includes providing, by an optical light source, a light beam configured to traverse an optical path through a fluid comprising the biological sample in a container. A length of the optical path through the fluid is between 3.3 mm to 5.5 mm, and a center of the light beam is at a height less than 1.6 mm from a bottom interior surface of the container, and a volume of the fluid is less than 120 μL. An optical detector receives optical information after the light beam traverses the optical path. An output of the optical detector is associated with at least one parameter representing the one or more characteristics of the biological sample.

The application discloses a method and device for acquiring optical information of a display screen and a nonvolatile storage medium. The method comprises the following steps: acquiring a position calibration image of the display screen and optical information extraction image of the display screen, wherein the optical information extraction image is used for extracting optical information of the display screen, the position calibration image is used for calibrating the position of a lamp point in the optical information extraction image, or the position calibration image is used for establishing a corresponding relationship between the position of the lamp point in the display screen and the position of the lamp point in the optical information extraction image; and acquiring the optical information of the display screen according to the position calibration image and the optical information extraction image, wherein the optical information comprises at least one of the following: brightness information, chrominance information and luminous flux information. The application solves the technical problem that the optical information extraction is inaccurate due to the inaccurate positioning of the lamp point caused by the influence of the resolution of the display screen, camera error or other factors.

The invention provides a reconfigurable generative all-optical chip, which comprises an optical encoder module, an optical hidden space module and an optical encoder module, and is characterized in that the optical encoder module is used for converting a high-dimensional image light field into a low-dimensional feature light field; the optical hidden space module is used for receiving the low-dimensional feature light field and performing optical processing on the low-dimensional feature light field in an optical hidden space to obtain optical hidden space features; the optical implicit space generator module is used for generating and outputting visual semantic information according to the optical implicit space features; the optical encoder module and the optical encoder module both adopt pluggable assembly structures and can be connected with the optical hidden space module in a pluggable manner and keep an optical path alignment relationship, and flexible switching of different semantic vision generation tasks is realized by replacing different optical encoder modules and optical encoder modules. According to the invention, the optical encoder module and the optical encoder module can be replaced in a pluggable manner to realize flexible task switching, so that multi-task reasoning and rapid upgrading are realized under the condition that the same optical hidden space is shared.

The invention discloses a cloud-based information optical experiment system capable of realizing remote interaction, and relates to the technical field of remote experiments. The system adopts a three-stage architecture of an instrument end, a cloud end and a client end, wherein the instrument end comprises a light source, a multi-stage optical device, a camera, a two-dimensional displacement console and a microcomputer which are arranged along a light path, and is used for executing an information optical experiment and collecting data; the cloud serves as a relay and is responsible for bidirectional forwarding and session management of experimental data and control instructions; and the client provides a remote interaction interface for a user. A user adjusts experimental parameters through the client, controls the displacement and state of the optical device, and issues an instruction to the instrument end for execution through the cloud; experimental images collected by the camera are coded and then distributed to the client side through the cloud side, and low-delay video feedback is achieved. The system is suitable for remotely carrying out information optical experiments such as spatial filtering, Fourier transform and scalar diffraction, effectively overcomes the limitation of a traditional information optical experiment on a site and time, realizes remote, interactive and resource sharing of a real optical experiment, and can remarkably improve the equipment utilization rate and the teaching and scientific research efficiency.

Disclosed is a method and a device for rapidly measuring the transmission matrix of an ultra-long optical fiber, belonging to the field of information optics. The solution couples the spatial mode into ultra-long few-mode / multi-mode optical fiber for transmission. By obtaining the common path reference light at the output end of the ultra-long few-mode / multi-mode optical fiber and interfering with the signal light at the output end, the complex amplitude distribution of the signal light field output by the optical fiber is reconstructed, weight coefficients of different modes are obtained by performing overlapping integral on the complex amplitude distribution and the ideal complex amplitude distribution of different spatial modes. The transmission matrix of the ultra-long few-mode / multi-mode optical fiber can be obtained by rapidly switching the mode incident into the ultra-long few-mode / multi-mode optical fiber and sequentially calculating the weight coefficients of the different modes at the output end.

An electronic device such as a head-mounted device may include a renderer for generating virtual content, displays that generate light containing the virtual content, and optics that direct the light to eye boxes. The optics may include fixed lenses and optionally removable prescription lenses. The device may include gaze tracking sensors that measure eye position information at the eye boxes and that measure binocular gaze information between the eye boxes. The renderer may generate the virtual content according to a rendering configuration. The rendering configuration may be generated based on the eye position information, the binocular gaze information, hardware constraints of the optics, hardware constraints of the display, and / or information about the virtual content to be displayed. The renderer may render the virtual content with a peak resolution that exceeds a collective upper resolution limit of the optics and the display. The rendered virtual content may include foveated virtual content.

Ophthalmic Surgery Visualization System (10) with a device (16) for stereoscopic visualization of an object area with an operating site (12) on a patient eye (14), which includes an image acquisition device (33) for acquiring object area image data containing image data for at least one patient eye registration structure (76), with a computing unit (54), and with a biometric data interface (70) for providing patient eye biometric data, which defines a patient eye model (102) with a model registration structure (76') corresponding to the patient eye registration structure (76) and a model coordinate system (77'), characterized by the fact that The computer unit (54) contains a computer program with a program routine for registering the patient eye model (102) to the patient eye (14) using the patient eye registration structure (76) and the model registration structure (76'), in which the object area image data acquired by means of the image acquisition device (33) are linked with optical imaging parameters of the image acquisition device (33) in order to provide a patient eye coordinate system (77) fixed to the patient eye (14) in the form of data, which is referenced to the model coordinate system (77'), wherein a stereoscopic display device (48) is provided for displaying image information in a stereoscopic visual impression, wherein the computer program has a program routine for calculating stereoscopic display information in the patient eye coordinate system (77),wherein the program routine serves to provide display information data which can be displayed at the display device (48) as a spatially extended structure (122) superimposed on the visualized object area, wherein the device (16) for stereoscopic visualization of an object area includes an adjustable imaging optic with an autofocus system (130) for automatically focusing on a structure (76) of the patient's eye or for automatically focusing on a point (140') in the patient's eye (14) corresponding to a structure (76') of the patient's eye model (102) or to a point (140') in the patient's eye (14) corresponding to a point of interest (140) of the patient's eye model (102), which has a focusing state interface (138) for providing z-focusing and / or xy-scaling of the imaging optics as well as xy-positioning of the device (16) for acquiring stereoscopic image data in a plane perpendicular to an optical axis (21) of a main objective (20) of the imaging optics, wherein the computer program receives information from the group z-focusing, xy-scaling of the imaging optics, xy-positioning from the focusing state interface (138) and receives patient eye biometric data from the biometric data interface and takes this into account for calculating the display information data.

The invention relates to the technical field of optical fiber sensing, and discloses a high-precision dynamic torque real-time measurement system and method based on a fiber bragg grating, and the system employs a polarization maintaining fiber bragg grating fixed along a 45-degree spiral path as a sensing unit, and couples the torque, bending moment, temperature and torsion rate information of a measured object. And the optical detection system divides the returned composite optical signal into a spectrum path and a polarization path for analysis, so as to obtain fast and slow axis reflection wavelengths and polarization crosstalk optical power. A decoupling algorithm model is built in the data acquisition and processing unit; the temperature is separated from the central wavelength by utilizing digital low-pass filtering; calculating a torsion rate according to the polarization crosstalk ratio; and finally, after temperature compensation, solving a binary linear equation set based on the difference between the central wavelength and the birefringence wavelength to obtain a torque and a bending moment. According to the invention, the crosstalk problem in multi-physical-quantity measurement is effectively solved, and synchronous high-precision real-time measurement is realized.

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle flight information acquisition method and system.The method adopts a three-dimensional laser radar, a positioning and orienting system and an optical camera to acquire flight information of an unmanned aerial vehicle, and adopts an embedded computer to communicate with the three-dimensional laser radar, the positioning and orienting system and the optical camera; wherein the three-dimensional laser radar is used for collecting three-dimensional space information in the flight process of the unmanned aerial vehicle; the positioning and orientation system is used for collecting speed information, position information and attitude information in the flight process of the unmanned aerial vehicle; the optical camera is used for collecting optical images of the environment in the flight process of the unmanned aerial vehicle. An embedded computer is adopted to identify the optical image of the environment collected by the optical camera in the flight process of the unmanned aerial vehicle, the position of an obstacle in the environment is obtained, and the distance between the obstacle and the unmanned aerial vehicle is calculated. The problem that the flight information of the unmanned aerial vehicle is difficult to accurately collect in the prior art is solved.

The present application relates to the technical fields of micro-nano information optical grating, and a tilted cemented holographic grating, comprising a prism light guide element, a grating substrate and a volume holographic grating layer arranged on the grating substrate; the volume holographic grating layer has a periodic refractive index modulation structure, and the volume holographic grating layer is connected with the prism light guide element in a tilted cemented manner; the incident light propagating through the prism light guide element is incident on the volume holographic grating layer in a direction satisfying or close to the Bragg matching condition, and is diffracted by the volume holographic grating layer; the present application is provided with the volume holographic grating layer, which is independently prepared on the planar grating substrate, and is cut and then connected with the prism light guide element in a tilted cemented manner, thereby avoiding the technical difficulty of directly coating and exposing the volume holographic grating on the prism inclined surface with a large base angle, and the exposure light path arrangement is more flexible, which is conducive to improving the preparation quality and batch consistency.

The invention provides a hologram regulation and control method based on displacement and inclination operation, and belongs to the technical field of information optics, and the method comprises the steps: determining the regulation and control demands of a reconstruction image space position and a frequency spectrum space position of a to-be-regulated and controlled hologram, and selecting a single or a specific combination from the space domain displacement operation, the frequency domain inclination operation, the frequency domain displacement operation and the frequency domain inclination operation according to the regulation and control requirements, executing the operation on the to-be-regulated and controlled hologram, and generating a regulated and controlled hologram. According to the invention, the problem that the position of the reconstructed image after spectrum separation in the technologies of frequency division multiplexing and the like is misplaced due to the fact that the hologram reconstructed image and the spatial position regulation and control of the spectrum are mutually coupled and image alignment and spectrum separation of the hologram cannot be ensured at the same time in the prior art is solved; and free movement of a hologram reconstruction image space position and a frequency spectrum space position can be realized.

The invention relates to the technical field of target recognition and information optics, in particular to an optical differential imager, an imaging system and an optical differential method.The optical differential imager comprises a micro-nano optical device and an image collector, and the micro-nano optical device is used for conducting phase modulation on an image of an object so as to recover the linear corresponding relation between a frequency spectrum component and an angular spectrum component; the angular spectrum transmittance modulation module is used for carrying out angular spectrum transmittance modulation on the phase-modulated image so as to filter out an angular spectrum low-frequency component of the phase-modulated image; and the image collector is used for collecting a differential image imaged by the micro-nano optical device after optical differential modulation. The system can be easily integrated in any optical imaging system, and the quality and the size of the imaging system are hardly influenced; and when the lens is integrated with an imaging system, the field angle and the resolution of the original imaging system cannot be reduced.

This invention provides a 2D / 3D display fusion-based remote surgical guidance system, comprising: a surgical acquisition end for acquiring three-dimensional light field information and two-dimensional image information of the surgical area; a data processing end for receiving two-dimensional image information and external guidance information, and generating two-dimensional enhanced information; a surgeon's workstation including a first display unit for reconstructing a three-dimensional light field scene based on the three-dimensional light field information; a second display unit for projecting the two-dimensional enhanced information; and an optical fusion unit for optically superimposing the two-dimensional enhanced information onto the corresponding spatial position of the three-dimensional light field scene for fusion display. By superimposing the two-dimensional enhanced information, including the enhanced information from external guidance, onto the corresponding spatial position of the three-dimensional light field scene through the optical fusion unit, three-dimensional anatomical depth and high-resolution two-dimensional guidance details can be perceived without switching between two-dimensional and three-dimensional display modes, compensating for the single-viewpoint resolution loss of simple three-dimensional light field display and improving surgical efficiency.

A large field of view hologram calculation method based on carrier frequency multiplexing relates to the technical field of information optics. Firstly, the size of the 3D input image is preprocessed. Therefore, the original large field of view input image is layered and cut into a sub-input image sequence with a size not greater than that of the hologram. Secondly, the sub-hologram of the sub-input image sequence is solved by using the hologram diffraction propagation calculation method. Thirdly, the x-y offset distance of the cut sub-hologram reconstruction is calculated according to each layer of the large field of view input image, and the diffraction propagation deflection carrier frequency factor corresponding to each sub-hologram is calculated. Fourthly, each sub-hologram is multiplied by the corresponding carrier frequency factor, and the spatial multiplexing of each sub-hologram multiplied by the corresponding carrier frequency factor is superimposed to form the final hologram. The present application realizes that the size of the input image can be greater than that of the hologram.