21 results about "Raster scan" patented technology

We present a ground-based laser system for searching, ranging, and tracking that actively illuminates small resident space objects (RSOs) in low Earth orbit (LEO) and observes position and transit-time of reflections, enabling orbital custody of most one-to-few centimeter-sized objects. A diode-pumped alkali laser (DPAL) augmented with mode-locking and Q-switching serves as an illuminator and offers exceptionally high spectral brightness due to its output beam's sub-nanosecond pulse duration and picometer-level spectral linewidth. Kilohertz fast-rastering enables interrogations of distinct few-meter-sized sky-patches at megahertz rates. Paired on the observation side with one or more telescopes outfitted with Faraday anomalous dispersion optical filters (FADOFs), image intensifiers, multi-pixel arrays, and nanosecond timing, the combined system could offer nearly background-free discoveries of RSOs every hour, even during daytime. Periodically re-flashing previously discovered objects to maintain orbit custody expends only a small fraction of total observing time.

Systems and methods of microscopy include and / or apply a laser light source configured to produce an excitation light; a modulator configured to modulate the excitation light to produce a modulated light; a pulse compressor configured to compress a pulse of the modulated light to produce a pre-compensated light; a beam scanner configured to raster scan the pre-compensated light on a sample; a detector configured to receive a light signal from the sample and produce a detection signal; and a lock-in amplifier configured to receive the detection signal and perform an electronic heterodyne amplification of the detection signal.

A method for decoding a picture from a bitstream. The method includes decoding a tile partition structure from one or more syntax elements in the bitstream. The method includes determining a number of tiles N in the picture. The method includes decoding a number of partitions in the picture, wherein each partition comprises an integer number of tiles. The method includes deriving a size and / or location for a current partition, wherein deriving the size and / or location for the current partition comprises: decoding one or more location syntax elements for the current partition from the bitstream, deriving a top-left position of the current partition as a location of a first tile in raster scan order that is not included in one or more previously derived partition, and deriving the size and / or the location of the current partition from a value of the one or more location syntax element together with a size and / or location of the one or more previously derived partition. The method includes using the derived size and / or location to decode the picture.

This invention relates to the field of automotive parts processing, specifically disclosing an intelligent control method for the intermediate coating process of new energy vehicle body panels. This method is applied to a 7-axis painting robot equipped with a high-voltage electrostatic rotary cup, a seventh-axis walking guide, and a vision system. The method includes the following steps: S1. Installing a structured light grating module on the wrist of the 7-axis painting robot near the high-voltage electrostatic rotary cup; S2. Obtaining the model information of the new energy vehicle body panel to be painted and the mounting trigger information of a preset mounting frame, controlling the structured light grating module to perform grating scanning on the entire surface of the body panel, acquiring a first image containing three-dimensional surface information, and simultaneously acquiring a second image of the two-dimensional texture of the body panel surface; S3. Performing multi-scale wavelet transform on the first image. The technical solution of this invention can detect defects in the primer coating process, locate potential points affecting the adhesion of the intermediate coating, and ensure the adhesion stability and integrity of the intermediate coating film.

The invention relates to an optical device (100) for a polarisation lidar system (200), to a method, to a polarisation lidar system (200), to a computer program product, and to a signal processing unit (70). The device comprises an optical transmitting unit (10) for emitting a pulsed, polarised light beam (14) for rasterised scanning of an environment (110) and an optical receiving unit (30) having photodetectors for receiving a backscattered light beam (36). The receiving unit (30) determines an intensity of the backscattered light beam (36) in two polarisation planes. A signal processing unit (70) processes signals from the photodetectors. The signal processing unit (70) is designed to simultaneously generate, from the same signals, both spatial information of the environment (110) from a temporal correlation of the pulsed light beam (14), and the backscattered light beam (36), and to determine a polarisation of the backscattered light beam (36) at least for localising and / or classifying an aerosol or a plurality of aerosols.

This document discloses a method for performing multiple operations within a region of a part using an end effector of a robot, and a robot performing the method. The method includes collecting a spatial representation of the part and aligning a predetermined raster scan pattern for movement of the end effector relative to the part with the spatial representation of the part. The method further includes defining multiple normal vectors for the part at multiple predetermined operating positions for end effector operations. The method also includes moving the end effector relative to the part and along the predetermined raster scan pattern. The method further includes orienting the end effector such that an operating device of the end effector faces each operating position along a corresponding normal vector and performing a corresponding operation among the multiple operations using the operating device.

A method for generating synthetic image data to imitate raw camera data from a mosaic filter sensor. The mosaic filter sensor comprises an array of sensor pixels and a mosaic filter designed as a periodic mosaic of color filters of different colors, arranged such that each sensor pixel in the array is covered by exactly one color filter. The method includes positioning and spatially orienting a virtual camera in a three-dimensional virtual environment on a computer system and simulating the imaging of colored light onto sensor pixels of a mosaic filter sensor integrated into the virtual camera by a camera lens. The brightness and color values ​​of the light imaged onto each sensor pixel are defined from a native color space of the virtual environment, depending on the position and spatial orientation of the virtual camera.The process further includes generating synthetic image data by simulating the mosaic filter sensor integrated into the virtual camera. This is achieved by deriving pixel brightness values ​​for the sensor pixels based on the brightness and color value of the light imaged onto each sensor pixel. For the mosaic filter sensor simulation, a mapping table is created for each filter color present in the mosaic filter. In each mapping table, a pixel brightness measure is assigned to a multitude of color values ​​from a raster scan of the native color space. For the sensor pixels of the simulated mosaic filter sensor, the filter color of the color filter covering each sensor pixel is checked, and the mapping table assigned to that filter color is consulted.By reading out the pixel brightness measure assigned to the respective color value, the pixel brightness of the respective sensor pixel is derived as a function of the color value of the light imaged onto the sensor pixel.

This invention relates to the field of optical path diffraction optical element technology, specifically to an optical path device and control method for sintering nylon powder using a DOE (Diffraction Optical Array) beam shaping device. The device includes a fiber laser, a collimator, a DOE beam shaping device, a grating scanning mirror, and an F-theta field mirror, all coaxially arranged along the optical axis of laser propagation. The DOE device shapes the laser beam into a ring-shaped spot with an energy distribution uniformity ≥95%, overcoming the limitations of Gaussian spot energy concentration and completely eliminating sintering defects such as keyholes, over-burning, and spatter. The surface roughness Ra of the nylon sintered sample is reduced from 5.8 μm to below 4.0 μm, significantly improving molding accuracy. The core parameters of the DOE are optimized based on the characteristics of nylon powder and the sintering temperature window of 160℃~180℃, achieving stable sintering of 0.1~0.3 mm thick powder layers. The overall sintering efficiency is improved by more than 30% compared to traditional methods, significantly broadening the process window.

According to one aspect, a method is provided for applying film grain to a picture decoded from a bitstream. The method includes decoding region information from syntax elements in the bitstream. The method includes deriving, based on the region information, a number of regions in the picture, wherein the number of regions is at least two. The method includes deriving, based on the region information, a region raster-scan order for a first region of the at least two regions. The method includes decoding the first region, wherein the decoding of the first region comprises applying film grain to the first region in accordance with the region raster-scan order.

This utility model discloses a highly adaptable fixture for a grating scanner, including a base with a support platform inside and a clamping mechanism. The clamping mechanism includes guide grooves, sliders, dovetail grooves, dovetail sliders, and a fixing plate. The upper surface of the support platform has evenly distributed guide grooves, with sliders slidably connected inside each guide groove. Dovetail grooves are formed on the inner walls of the long sides of the guide grooves, and dovetail sliders are fixedly connected to the outside of each slider. The dovetail sliders are slidably connected to the inside of adjacent dovetail grooves. The top of each slider is bolted to a fixing plate. A microcontroller is installed outside the base, and the input terminal of the microcontroller is electrically connected to an external power source. This highly adaptable fixture for a grating scanner can adapt to workpieces of various shapes. The fixing plate clamps the workpieces simultaneously from different directions, improving the accuracy of clamping and positioning, and ensuring high-precision scanning.

A method comprises removing a portion of molding compound from a side of a package structure by a laser ablation process to create an opening that exposes a portion of a conductive clip, depositing solder paste on the exposed portion of the conductive clip, and reflowing the solder paste. The laser ablation process in one example is a pulsed laser ablation process that includes raster scanning a laser along a portion of the side of the package structure to create the opening. Depositing the solder paste in one example includes performing a dispense process or a screening process that deposits solder paste in the opening onto the exposed portion of the conductive clip.

Methods, systems, or apparatuses for storage and access of micro-scaling numerics (MX) format data in memory. The approach may involve organizing MX data into tiled formats that match the read capabilities of consuming hardware blocks, interleaving scaling data with floating-point data, storing floating-point data in raster scan order, and storing scaling data in sub-tiles packed in multiples of a memory line size. A constant product of tile x-size and format size may be maintained across different MX format sizes, ensuring consistent memory utilization. This method may affect memory management for MX format data.

A multi-beam charged particle inspection system and a method of operating a multi-beam charged particle inspection system for wafer inspection with high throughput and with high resolution and high reliability comprise a mechanism for reduction and compensation of a scanning induced aberration, such as a scanning distortion of a collective multi-beam raster scanner for beamlets propagating at an angle with respect to the optical axis of the multi-beam charged particle inspection system.

According to the present invention, in a first step S101, a treatment region to be treated is divided into a plurality of divided regions. Next, in a second step S102, in the divided region, a laser beam is scanned and irradiated such that the entirety of the divided region is irradiated with the laser beam. For example, a spot beam of the laser beam focused to a desired beam diameter is raster-scanned and irradiated on a plane of the target divided region.

Synthetic image data is generated by deriving the pixel brightness of the sensor pixels, which depends on the brightness and color values ​​of the light mapped onto the sensor pixels, using a simulation of a mosaic filter sensor. [Solution] For each filter color generated within the mosaic filter, a mapping table is created to assign to the filter color (24). In each mapping table, a pixel brightness scale is assigned to a number of color values ​​from the raster scan of the original color space (28). For the sensor pixels of the simulated mosaic filter sensor, the filter color of the color filter covering the sensor pixels is examined (30), and the mapping table assigned to the filter colors is referenced (32). Using the readout of the pixel brightness scale assigned to the color values ​​(34), the pixel brightness of the sensor pixels is derived depending on the color values ​​of the light mapped onto the sensor pixels (36).

A single molecule detection method based on grating scanning recognition, in which a large number of capture beads are scattered on a bead retaining plate (or a detection chip). At least part of the capture beads are specifically bound with an analyte, and each analyte is bound with a luminescent substance. Grating ports of a grating detection device are used to scan the capture beads column by column from the capture beads arranged at one end. The number of the capture beads bound with a marker is synchronously counted. The capture beads on the whole bead retaining plate are scanned through transverse relative movement between the grating ports and the capture beads. The total number of analytes can be obtained after scanning is completed. In the present invention, the number of detected substances is obtained in real time by counting the capture beads while scanning, in combination with the number of capture beads with a marker, which greatly improves the detection speed.

The invention relates to an optical device (100) for a polarization lidar system (200), a method therefor, a polarization lidar system (200), a computer program product for such a system, and a signal processing unit (70) for an optical device (100) of a polarization lidar system (200). The device comprises an optical transmitter unit (10) with a laser source (12) for emitting a pulsed, polarized light beam (14) for raster scanning of an environment (110), an optical receiver unit (30) with photodetectors (32, 34) for receiving a light beam (36) backscattered from the environment (110), wherein the optical receiver unit (40) is configured to determine the intensity of the backscattered light beam (36) in at least two polarization planes, and a signal processing unit (70) for processing signals from the photodetectors (32, 34).wherein the signal processing unit (70) is configured both to generate spatial information of the environment (110) from a temporal correlation of the pulsed light beam (14) and the backscattered light beam (36) and to determine a polarization of the backscattered light beam (36) at least for the localization and / or classification of one or more aerosols.