Abstract: The present application discloses a method and apparatus for positioning a vehicle. An implementation of the method comprises: obtaining laser point cloud data of a laser point cloud collected by a laser radar on a vehicle, and obtaining an initial pose of a center point of the laser radar; calculating a matching probability between projection data corresponding to each sampling pose and map data of a reflected value map respectively; and calculating an optimal pose based on the matching probability between the projection data corresponding to the each sampling pose and the map data of the reflected value map, and determining a position of the vehicle based on the optimal pose.

Abstract: The present disclosure relates to a method of tagging at least one target with an artificial physical tag configured to provide a signature of interest for imaging technology in any region of the electromagnetic spectrum. The method may comprise associating the artificial physical tag to the target.

Abstract: System, methods, and other embodiments described herein relate to identifying surface properties of objects using a light detection and ranging (LIDAR) sensor. In one embodiment, a method includes, in response to scanning a surface of an object using the LIDAR sensor, receiving a reflected waveform as a function of attributes of the surface. The method includes analyzing the reflected waveform according to a surface property model to produce an estimate of the attributes. The surface property model characterizes relationships between reflected waveforms and different surface properties. The method includes providing the estimate as an indication of the surface of the scanned object.

Abstract: Aspects of the present disclosure describe wavelength division multiplexed LiDAR systems, methods, and structures that advantageously provide a wide field of view without employing lasers having a large tuning range.

Abstract: A scanning system includes a light source configured to emit light as a series of one or more light pulses, a scanner configured to direct the one or more light pulses towards a remote target, and a receiver configured to detect light scattered by the remote target. The receiver includes a light detector element disposed on an ASIC that includes multiple comparators disposed in parallel with one another, and corresponding time-to-digital converters (TDCs) coupled to the comparator. Each of the comparators processes a received electrical signal from the light detector element to produce a digital edge signal when the amplitude of the received electrical signal reaches a particular threshold. A corresponding TDC outputs a time delay value associated with a time at which the received electrical signal reaches the particular threshold.

Abstract: The present application generally relates communications and hazard avoidance within a monitored driving environment. More specifically, the application teaches a system and method for improved target object detection in a vehicle equipped with a laser detection and ranging LIDAR system by employing a variable LIDAR pulse rate.

Abstract: An error correcting location system includes a ground station with fixed reference coordinates. The ground station may receive satellite broadcast messages from a plurality of location system satellites. Further, the ground station may determine location coordinates based on the satellite broadcast messages, and compare the location coordinates to the fixed reference coordinates to determine a compensation value. In addition, the ground station may send the compensation value to location system devices. Upon receipt of the compensation value, the location system devices may utilize the compensation value to generate highly accurate location coordinates.

Abstract: A GPS correction data may be provided to user devices through one of a unicast mode and a broadcast mode using a mobile communication network. For transmitting the GPS correction data to a user device through a mobile communication network, the apparatus may include a receiver configured to receive a GPS correction data and store in a memory, at least one processor configured to decide a transmission mode from a unicast mode and a broadcast mode for transmitting the GPS correction data to a user device, and a transmitter configured to transmit the GPS correction data to the user device using the decided transmission mode through the mobile communication network.

Abstract: A distributed navigation system architecture includes a plurality of navigation platforms, each having a universal navigation processor configured to communicate with other universal navigation processors, one or more relative navigation systems configured to provide source information to the navigation platforms, an anchor navigation node disposed on one or more of the plurality of navigation platforms in order to form one or more anchor navigation platforms, the anchor navigation node, including an inertial navigation system, a clock, and one or more absolute navigation systems, configured to determine navigation information based on the inertial navigation system, the clock, the one or more absolute navigation systems and optionally the source information, the one or more anchor navigation platforms providing the navigation information to the other navigation platforms, and a navigation processor system in communication with each of the universal navigation processors in order to provide operating informat

Abstract: A radiation image acquisition system includes a radiation source that outputs radiation toward an object, a scintillator that has an input surface to which the radiation output from the radiation source and transmitted through the object is input, converts the radiation input to the input surface into scintillation light, and is opaque to the scintillation light, an image capturing means that includes a lens portion focused on the input surface and configured to image the scintillation light output from the input surface and an image capturing unit configured to capture an image of the scintillation light imaged by the lens portion and outputs radiation image data of the object A, and an image generating unit that generates a radiation image of the object based on the radiation image data output from the image capturing means.

Abstract: A radiation detector (100) with a scintillator (102), a photosensor (104) and an electronics module (108) is proposed. The electronics module (108) has a current-to-frequency converter (110) with a charge integrator (112) for generating a pulsed signal in having a frequency correlating with a charge generated by the photosensor (104) during a measurement cycle. The electronics module (108) further comprises a current source (120) for generating a frequency offset of the pulsed signal, an interrupting device (134) for interrupting an integration of the charge by the charge integrator (112), and a logic module (124) for determining the frequency of the pulsed signal. Therein, the logic module (124) is configured for determining an off-state of a radiation (404) source and for triggering the interrupting device (134) upon determining the off-state of the radiation source (404).

Abstract: An improved scintillator nanocomposite comprising nanoparticles with scintillating properties and a diameter between 10 and 50 nanometer and a first matrix material comprises is obtained by introducing the nanoparticles into a dispersing medium to form a stable suspension. The dispersing medium is a precursor to the first matrix material, which is cured to form the first matrix material.

Abstract: A radiation detector can include a logic element configured to determine an adjusted value for light emission of a luminescent material. A method of using the radiation detector can include determining an adjusted value of a luminescent material. The adjustment can be based on an inverse correlation between decay times corresponding to signal pulses and values of light emissions corresponding to the signal pulses. In an embodiment, the logic element may be further configured to obtain a measured value of a decay time and a measured value for the light emission, and determining an adjusted value for the light emission can be based on the measured value of the decay time and measured value for the light emission.

Abstract: A radiation imaging apparatus includes: a detection apparatus including a plurality of detection units configured to detect radiation irradiated based on a constant tube voltage; and a calculation unit configured to obtain multiple pieces of energy information of the radiation and calculate a photon count corresponding to each of the pieces of energy information based on the detection result of each of the multiple detection units.

Abstract: A system and method for effective seismic monitoring of large area subsurface reservoirs, for instance, the system comprising: multiple electro acoustic technology assemblies comprising electrical seismic sensing elements, electronic circuits for converting the electrical seismic sensing signals to frequencies, amplification circuitry to amplify the frequencies, an acoustic source that converts the amplified frequencies to an acoustic frequency signal; a fiber optic Distributed Acoustic Sensing (DAS) system comprising a fiber optic cable deployed in the subsurface reservoir and in close proximity to the multiple electro acoustic technology assemblies and exposed to the generated acoustic frequency signals from the acoustic sources of the multiple electro acoustic technology assemblies, a surface based distributed acoustic sensing interrogator connected to the fiber optic cable; a source of electrical power to the multiple electro acoustic technology assemblies.

Abstract: A method can include receiving information associated with an interface between a first medium and a second medium where the information includes sensor data; based on at least a portion of the information, estimating wave properties that include elastic properties, depth-dependent properties and horizontal slowness; and, based on the estimated wave properties, calculating an orientation of a sensor utilized to acquire at least a portion of the sensor data.

Abstract: The computer system and computer-implemented method allow a user to position an interactive cursor my interaction with a user-input device, to select a point anywhere within a 3D seismic data volume that is visible on a display. In response, the computer dynamically calculates a horizon-based stratal slice that includes the user-selected point. A selected attribute rendering from seismic data that is contained within the horizon-based stratal slice is automatically calculated and dynamically shown on a second display.

Abstract: Microseismic-event data can be corrected (e.g., to reduce or eliminate bias). For example, a first distribution of microseismic events that occurred in a first area of a subterranean formation can be determined. The first distribution can be used as a reference distribution. A second distribution of microseismic events that occurred in a second area of the subterranean formation can also be determined. The second area of the subterranean formation can be farther from an observation well than the first area. The second distribution can be corrected by including, in the second distribution, microseismic events that have characteristics tailored for reducing a difference between the second distribution and the first distribution.

Abstract: A method, including: determining, with a computer, a reflectivity spectrum; generating, with a computer, a target spectrum that is a convolution of a roll-off function and the reflectivity spectrum; and filtering, with a computer, seismic data to cause the seismic data to have the target spectrum.

Abstract: In some examples, an unmanned marine surface vessel connected to a three-dimensional array of sensors positioned are deployed in proximity with an obstruction area of a survey environment. The three-dimensional array of sensors positioned in proximity with the obstruction area of the survey environment records signals that are affected by a target structure.

Abstract: Apparatus and methods to generate a two-dimensional image of the well can include control of measurements in a well to generate a log of the well and use of such measurements and/or logs with a log of a reference well. The boundary positions of layers of the well can be correlated with corresponding boundary positions from the reference well. Such apparatus and methods or similar apparatus and methods can be implemented in a variety of applications.

Abstract: Systems and methods are provided for scanning an item utilizing an X-ray scanner in order to facilitate a determination of whether the X-ray radiation penetrated through the entirety of the scanned item. Various embodiments comprise a conveying mechanism, an X-ray emitter, a detector, and an X-ray penetration grid (XPG). The XPG may comprise a radiopaque grid that may serve as a reference for determining whether radiation passes through the scanned item, the grid oriented such that the grid members are neither parallel nor perpendicular to the direction of travel. Such orientation may minimize or eliminate “ghosted” radiation signals included in a visual display of the radiation received by the detector. A scanned item may be oriented with the XPG such that radiation emitted by the X-ray emitter that passes through a portion of the scanned item must also pass through the XPG before being received by the detector.

Abstract: Various implementations directed to a continuous survey using magnetic sensors are provided. In one implementation, a method may include acquiring continuous survey data during an outrun data acquisition using a survey tool disposed within a previously drilled section of a wellbore. The survey tool may have one or more magnetic sensors, and the survey tool may be configured to ascend within the previously drilled section of the wellbore during the outrun data acquisition. The method may further include transmitting the continuous survey data to a computing system, where the computing system may be configured to generate a continuous survey of the previously drilled section of the wellbore based on the continuous survey data.

Abstract: The present invention relates to a passive microwave sounder for a satellite, having a fixed reflection plate.

Abstract: Method, system, apparatus, and computer program product for displaying weather data on a computer display screen. Weather data for use in a flight of an aircraft is received. The weather data is updated at a first rate. The weather data is separated into weather data layers for a plurality of ranges of altitude. Each weather data layer corresponds to a respective one of the plurality of ranges of altitude, and the weather data is separated at the first rate. Embodiments monitor for a selection of at least one of the weather data layers. The monitoring is performed periodically at a second rate, and the second rate is faster than the first rate. Weather data in the selected at least one of the weather data layers is prepared for display and the weather data is output for display on a display screen in the aircraft.

Abstract: Provided are an active energy ray-curable composition which has a low viscosity suitable for coating and also exhibits a high refractive index in terms of a cured product thereof, a cured product thereof, and a plastic lens. The active energy ray-curable composition contains a phenylbenzyl (meth)acrylate (A) and a bicarbazole compound (B) represented by the following structural formula (1) (in the formula, X1 and X2 each independently represent a photopolymerizable functional group, a structural moiety having a photopolymerizable functional group, or a hydrogen atom, provided that at least one of X1 and X2 represents a photopolymerizable functional group or a structural moiety having a photopolymerizable functional group; and R1 and R2 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a bromine atom, or a chlorine atom).

Abstract: Provided is a resin composition that exhibits excellent strength and fluidity. According to one embodiment, the provided resin composition contains a resin containing a repeating unit derived from a compound represented by general formula (1), and also contains a polymer having an end structure represented by general formula (A) and/or contains a compound represented by general formula (B).

Abstract: An optical thin film provided on a base substrate, includes a layer whose main component is ytterbium oxide, and a layer whose main component is magnesium fluoride. The layer whose main component is magnesium fluoride disposed on the layer whose main component is ytterbium oxide. The layer whose main component is magnesium fluoride is positioned opposite from the base substrate with respect to the layer whose main component is ytterbium oxide.

Abstract: Planar optical module (100, 100?) for capturing, converging and collimating incident light (3, 3?) with a variable incident direction comprising: —a first optical arrangement (10) with an optical layer able to converge the incident light-beam (3, 3?), forming thereby a converging light-beam (4, 4?) and —a second optical arrangement (20) placed downstream said first optical arrangement (10), said second optical arrangement (20) having an optical layer collimating said converging light-beam(s) (4, 4?), forming thereby a collimated and concentrated beam (5, 5?), wherein the first and second optical arrangements (10, 20) are movable one relative to the other such that the relative position of first and second optical arrangements (10, 20) allows said collimated and concentrated beam (5, 5?) to have an orientation which is, in a plane perpendicular to the main plane (P) of the planar optical module (100, 100?), predetermined, fixed and independent from the direction of the incident light (3, 3?).

Abstract: A reflector may include an exterior wall, an interior space, one or more interior walls, each interior wall having two ends, a proximal end, and a distal end. Each end of an interior wall may be attached to the exterior wall or to a different interior wall. The interior walls may divide the interior space into two or more sections. The proximal end and the distal end of the reflector may be open. The exterior wall and the interior walls may be configured to reflect light that contacts the exterior wall or interior walls through the distal end of the reflector.

Abstract: A transmission grating includes: first light-transmissive regions having a refractive index of n1, and second light-transmissive regions having a refractive index of n2 that is smaller than n1 Light-reflecting interfaces on which light transmitted through the first light-transmissive regions is incident are in parallel with one another and are inclined such that a line normal to each of light-reflecting interfaces is at an inclination angle ? with respect to the flat light-incident surface and to the flat light-emitting surface, wherein 0°<?<90°. When a thickness of the first light-transmissive regions in a direction perpendicular to the light-reflecting surfaces is t1 and a thickness of the second light-transmissive regions in a direction perpendicular to the light-reflecting surfaces is t2, the thickness t2 is in a range of 0.1/?(n12?n22)1/2 to t1.

Abstract: Provided are a coloring composition capable of producing a film having excellent light fastness, and the like, a method for producing a coloring composition, a color filter, a pattern forming method, a solid-state imaging device, and an image display device. The coloring composition includes a coated pigment in which at least a portion of a surface of a yellow pigment is coated with a resin, a halogenated phthalocyanine pigment, a dispersant having an acid value of 40 mgKOH/g or more, and a curable compound.

Abstract: Heat-blocking filter is a heat-blocking filter to be installed in a window glass of a vehicle. The heat-blocking filter substantially transmits visible light and infrared light in a first wavelength range, and substantially blocks infrared light outside the first wavelength range.

Abstract: An optical phase difference component includes a transparent base with a concave-convex pattern having concave portions and convex portions; a coating layer coating the concave portions and the convex portions of the concave-convex pattern; a gap defined between the convex portions of the concave-convex pattern coated with the coating layer; and a closing layer provided on the concave-convex pattern to connect tops of the convex portions of the concave-convex pattern and to close the gap. A refractive index n1 of each of the convex portions and a refractive index n2 of the coating layer at a wavelength of 550 nm satisfy n2?n1?0.8. The optical phase difference component has a phase difference property of reverse dispersion and a wide viewing angle.

Abstract: A light guide device. The light guide device includes: a light incidence portion and a light guide body, wherein the light incidence portion includes: a first end having an end face with a shape of polygon for receiving an incident light; a second end arranged opposite to the first end and connected to the light guide body, the second end being arranged to direct the incident light from the first end into the light guide body; and a side surface arranged between the first end and the second end, the side surface including at least two sub-surfaces arranged side by side, wherein each of the at least two sub-surfaces extends from one side of the end face of the first end to the second end.

Abstract: A stereo display device includes a light guide plate, light sources, a display module, and first, second, and third lenticular lens arrays. The light guide plate has incident and exit surfaces. The light sources emit a source light towards the incident surface. The first lenticular lens array transforms the source light into directional lights. The light guide plate receives directional lights at the incident surface and reflects the received directional lights out of the exit surface. The second lenticular lens array transforms the reflected directional lights into focused reflected directional lights towards elongated regions of the display module. The display module transforms focused reflected directional lights into sets of pixel light. The display module's elongated regions extend in a first direction and pixels each includes sub-pixels arranged along the first direction. The third lenticular lens array directs the sets of pixel light to viewing zones.

Abstract: A fiber optic shelving system includes a shelf including a plurality of holes, a plurality of fiber optic filaments, each of the plurality of fiber optic filaments having a first end and a second end, and the first end being coupled to one of the plurality of holes, a holder configured to hold the second ends and expose terminal surfaces of the plurality of fiber optic filaments, a first camera configured to capture an image of the terminal surfaces of the plurality of fiber optic filaments, and a second camera configured to capture an image of a side of one or more products on the shelf. The fiber optic shelving system determines a number of products on the shelf based on the captured image of the terminal surfaces of the plurality of fiber optic filaments and the captured image of the side of one or more products on the shelf.

Abstract: In various embodiments, an illumination system is provided. The illumination system may include at least two light guides, which each have an input coupling surface and an output coupling surface, and at least one radiation source having a radiation surface that faces the corresponding input coupling surface provided for a respective light guide. A distance between the input coupling surface of one of the light guides and the radiation surface of the at least one assigned radiation source and the distance between the input coupling surface of a further light guide and the radiation source of the at least one assigned radiation source differ.

Abstract: The present disclosure relates to a backlight module and a liquid crystal display (LCD) device. The backlight module includes a light guide plate is configured with a first area and a second area. A light incident surface is configured on a side of the second area of the light guide plate, wherein the side of the second area is adjacent to the first area. A diffraction grating configured within the first area, and the light source is configured below the diffraction grating. The diffraction grating is configured to diffract light beams emitted from the light source and to guide the light beams to enter the second area of the light guide plate via the light incident surface at a predetermined polar angle.

Abstract: A light-emitting unit includes first light-emitting sections, second light-emitting sections, and first and second light guide plates. The first and second sections, respectively, line up in first and second directions, and emit first and second light individually. The first plate includes first end and front surfaces; guides, along a second direction, a portion of the first light; and outputs the guided portion from the first front surface. The first and second end surfaces, respectively, along the first and second directions and face the first and second sections. The second direction is a direction getting away from the first end surface. The second plate includes second end and front surfaces; guides, along the first direction, a portion of the second light; and outputs the guided portion from the second front surface. The first and second plates are laminated to cause the first and second front surfaces to overlap each other.

Abstract: A backlight unit includes side emitting-type LEDs, a light guide plate, and an LED board. The light guide plate includes a light entering end surface, a light exiting plate surface, and an opposite plate surface. The LED board includes a plate surface attached to an edge of the opposite plate surface. A gap in a range from 0.1 mm to 0.2 mm is provided between light emitting surfaces of the LEDs and the light entering end surface. The edge of each light emitting surface is at a position ?D1 mm inner than an edge of the light entering end surface with respect to a thickness direction of the light guide plate. An edge of each light emitting surface is at a position ?D2 mm inner than an edge of the light entering end surface. ?D1 and ?D2 satisfy relational expressions: ?D2??D1 and ?D2?0.1.

Abstract: Transparent structure comprising a first material having a high first transparency with a scattering property and a second material having a high second transparency, wherein the first and second materials are arranged in a plane with a normal vector and a view through the structure is given in the direction of the normal vector, the structure having a peripheral region, which is configured at least for the most part such that light propagating in the structure at least approximately perpendicular to the normal vector is reflected from the peripheral region back into the structure, and wherein the scattering property is such that light propagating perpendicular to the normal vector by the structure is deflected at least partially to the direction of the normal vector. In addition, a display device, a household appliance and a method for producing a transparent structure are disclosed.

Abstract: Optically transparent lightguides (200) including light extractors (230) with a maximum dimension of a projected area of each light extractor onto the lightguide less than 100 microns are disclosed. Each light extractor may be disposed in a different corresponding area cell (220) The plurality of light extractors extract light uniformly over the entire active region (210). Embodiments with a nearest neighbour distance of at least 100 microns and with an image behind the lightguide are also disclosed.

Abstract: A multiview backlight and a multiview display employ multibeam elements configured to provide a tilted plurality of light beams having different principal angular directions corresponding to different view directions of a plurality of views of the multiview display. Further, the tilted plurality of light beams has a tilt toward a center of a view zone of the multiview display to provide converging views. The multiview backlight includes a light guide and an array of the multibeam elements. The multiview display further includes multiview pixels that include view pixels to modulate the tilted plurality of light beams having the tilt and the different principal angular directions.

Abstract: A LED light source includes a longitudinally extending light guide, at least one LED, and a diffuser. The light guide has a first longitudinally extending light emitting face. The light emitting face having a first end face, a longitudinally spaced apart second end face, and first and second side faces extending between the first and second end faces. The at least one LED is provided at the first end face. The diffuser includes a central panel that is spaced from and facing the first light emitting face. A LED light source having a reflector facing a rear face of the light guide is also disclosed.

Abstract: A luminaire comprises a light guide having light outcoupling elements at one side and a flat light output surface at the other side, which is visible in use of the luminaire. An array of solid state lighting elements is arranged around the edge of the light guide facing the general light output direction. A respective reflector is associated with each solid state lighting element for reflecting light into the light guide. By providing the lighting elements all facing the general light output direction, they can be formed as a single unit, or as a small number of sub-units, thereby simplifying the manufacture. The design of the reflectors, the positioning of the lighting elements, and the design of the light outcoupling elements together may be used to create an asymmetrical light output beam shape. Actuation of different lighting elements may be used to provide different asymmetric light outputs.

Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal panel and a backlight device. The backlight device includes a case with a bottom plate and a side plate, a light guide on the bottom plate, and a light source device. The light source device includes a wiring substrate and a light-emitting element on the wiring substrate. The wiring substrate includes a mounting portion on which the light-emitting element is mounted, a connection wiring portion on a back surface side of the bottom plate, and a joint portion which joints the mounting portion and the connection wiring portion together. The joint portion extends from an inside to an outside of the case through a gap between the side plate of the case and the liquid crystal panel.

Abstract: A light guide plate is provided, including a body. A protruding portion that protrudes outwardly is provided on a lateral surface of the body, and the body is further provided with a slot. The slot is capable of enabling the protruding portion to be deformed elastically to position and fix the body. A backlight source and a display device are further provided.

Abstract: A LED light source includes a longitudinally extending first light guide, a housing, and a cartridge. The first light guide has a longitudinally extending light emitting face. The light emitting face has a first end face and a longitudinally spaced apart second end face. The housing has a first side proximate the first end face of the first light guide. The cartridge is mountable to the first side of the housing and has at least one LED on a first face of the cartridge. The first face extends generally transverse to the first light guide when the cartridge has been mounted to the housing. When the cartridge is mounted to the first side of the housing, the first face of the cartridge is adjacent the first end face. A LED light bulb is also disclosed.

Abstract: A LED light source includes a longitudinally extending light guide having a longitudinally extending light emitting face having a length, a first end face and a longitudinally spaced apart second end face. A LED light source is provided at least at the first end face. The light emitting face has a plurality of light emitting locations provided thereon. The density of the light emitting locations increases from the first end face towards the second end face.