120 results about "Visible range" patented technology

A method and a system have been developed to calibrate the total spectral radiance factor (TSRF) obtained from different instruments. A broad-band light source covering the whole visible range as well as the fluorescence excitation wavelengths is used to measure the TSRF, and one or more narrow-band light sources outside of the fluorescent band is used to measure fluorescent spectral radiance factor (FSRF) separately. After that, the TSRF is adjusted by the FSRF, and a calibrated TSRF can be obtained. This can be applied to characterize Optical Brightening Agents (OBAs) as well as other fluorescent materials without requiring any moving part of the instrument to do the calibration.

The invention discloses a local refresh and cache collaborative drawing refresh method based on MFC, and the method specifically comprises the steps: recording the change of elements based on a state monitoring mechanism of picture elements, automatically recognizing the change elements and related elements during user interaction or data change, and generating a picture change region; according to the original display range of the change element and the scaling and rolling offset of the current view, coordinate conversion, overlapping merging and visual range cutting are carried out on the change area, and a minimum refreshing range is obtained; executing redrawing in sequence in the refreshing range; maintaining a local cache bitmap for a visible area by using a graphic operator, and based on a mapping relationship between screen coordinates and cache coordinates, only performing cache updating on a failure area, and directly multiplexing a cache in a non-failure area; and when the elements move, the attributes are modified, rolled, zoomed or the resolution is changed, performing differential failure marking on the corresponding local cache region, and realizing cache reconstruction through combination of redrawing and cache zooming.

This disclosure relates to the field of rendering technology, providing a method, apparatus, electronic device, and storage medium for rendering fog effects in a virtual scene. The method includes: in response to a target object entering a fog effect area, determining a pre-set visible range of the target object within the fog effect area; determining, based on the visible range, a decal component for simulating a target fog effect within the visible range and a mesh model matching the size of the visible range; attaching the decal component and the mesh model to the target object so that the decal component and the mesh model move with the target object within the fog effect area, forming a fog effect mask for the virtual scene outside the visible range; and controlling the rendering and display of the target fog effect determined based on the decal component, and the virtual scene under the influence of the target fog effect, on the target object's terminal device when the target object moves within the fog effect area. This method significantly enhances the fog effect rendering.

The embodiment of the invention provides a satellite transit signal coverage analysis method and related equipment, and belongs to the technical field of satellites. The method comprises the steps of obtaining two rows of orbit element sets of a target satellite; performing transit analysis of the target time point according to the two rows of orbit element sets to obtain a satellite orbit state of the target satellite at the target time point; performing static geometric coverage analysis according to the satellite orbit state to obtain a first signal coverage area of the target satellite at the target time point; querying a sky visual field graph according to the first signal coverage area, and determining sky visual field information in the first signal coverage area; the sky visible range graph is constructed based on a digital elevation model and field measurement data; and correcting the first signal coverage area according to the sky visual field information to obtain a second signal coverage area. According to the invention, the satellite transit signal coverage analysis precision can be improved.

To provide an apparatus and a method for estimating the degree of steaming of tea leaves, capable of objectively estimating the degree of steaming of steamed leaves, and to provide a method for producing tea leaves.SOLUTION: A steaming degree estimation device for tea leaves includes first measurement means for measuring light intensities of reflected light at a plurality of specific wavelengths by irradiating a plurality of tea leaf samples each having a known steaming degree with light in a visible region, prediction model creation means for creating a steaming degree prediction model representing a correspondence relationship between the light intensities of the reflected light at the plurality of specific wavelengths measured by the first measurement means and the known steaming degrees in the plurality of tea leaf samples, storage means for storing the steaming degree prediction model created by the prediction model creation means, and second measurement means for measuring a light intensity of reflected light at a specific wavelength by irradiating target tea leaves whose steaming degree is to be estimated with light in a visible region. And a steaming degree estimation means for obtaining the steaming degree of the target tea leaves corresponding to the light intensity of the reflected light measured by the second measurement means.SELECTED DRAWING: Figure 4

The utility model discloses an intelligent electronic display instrument which comprises a bus electronic stop board base, a bus electronic stop board box body is fixedly installed on the outer surface of the upper end of the bus electronic stop board base, and a first electronic display screen is fixedly installed on the outer surface of the front end of the bus electronic stop board box body. A second electronic display screen is arranged on the upper portion of the electronic bus stop board box body, a turnover assembly is connected between the second electronic display screen and the electronic bus stop board box body, and the turnover assembly comprises a first fixing block, a second fixing block, a protective shell, a motor, a driven shaft, a connecting arm, a connecting rod, a worm gear and a worm. According to the intelligent electronic display instrument, through the arrangement of the first electronic display screen and the second electronic display screen, the double screens are unfolded at morning and evening peaks to enlarge the visual range, the folding is performed at night to reduce the wind resistance, and through the arrangement of the overturning assembly, the second electronic display screen is conveniently driven to overturn.

The large-scale artificial synaptic device arrays based on the organic molecule-nanowire heterojunctions with tunable photoconductivity are proposed and demonstrated. The organic thin films of p-type 2,7-dioctyl[1]benzothieno[3,2-b][1] benzothiophene (C8-BTBT) or n-type phenyl-C61-butyric acid methyl ester (PC61BM) are used to wrap the InGaAs nanowire parallel arrays to configure two different type-I heterojunctions, respectively. Due to the difference in carrier injection, persistent negative photoconductivity (NPC) or positive photoconductivity (PPC) are achieved in these heterojunctions. The irradiation with different wavelengths (solar-blind to visible ranges) can stimulate the heterojunction devices, effectively mimicking the synaptic behaviors with two different photoconductivities. Evidently, these photosynaptic devices are illustrated with retina-like behaviors and capabilities for large-area integration, which reveals their promising potential for artificial visual systems.

A status information presentation program according to the present invention makes a head-mounted display–type computer that includes a first communication unit, a storage unit, and a display present status information for a vehicle that includes a second communication unit. The status information presentation program makes the computer execute processing (S10) that acquires first user information about the vehicle or a passenger of the vehicle and situation information for the vehicle via the first communication unit, processing (S20) that determines whether an identifier for the computer that is stored at the storage unit and the first user information satisfy prescribed conditions, processing (S30) that determines the status of the vehicle on the basis of the situation information for the vehicle when the prescribed conditions are satisfied, and processing (S40) that presents the status information for the vehicle within a first prescribed region of the display that corresponds to a visible range for a second user that is wearing the computer but outside a second prescribed region of the display that corresponds to a central field of view for the second user.

The embodiment of the invention discloses a method for calculating a visible window of a satellite. The method comprises the following steps of: establishing a time dynamic stepping function about a distance and stepping time between a simulated earth station and the satellite; judging whether the current distance is greater than the farthest distance; if not, controlling the satellite to move according to the preset stepping time when the satellite is in the visible range at the current moment T0 until the distance between the earth station and the satellite at the first moment T1 is greater than the farthest distance, and subtracting the current moment T0 from the first moment T1 to obtain the time range and duration of the visible window; if yes, the current distance is substituted into the time dynamic stepping function to obtain the corresponding stepping time when the satellite is not in the visible range at the current moment T0, and the satellite is controlled to move according to the corresponding stepping time until the distance between the earth station and the satellite at the second moment T2 is smaller than or equal to the farthest distance.

In one embodiment, a lighting system includes one or more light sources, one or processors, and a non-transitory computer-readable medium storing instructions that, when executed by the one or more processors, causes the one or more processors to: receive a lighting profile for an individual or device within visible range of the lighting system, and control the one or more light sources according to the lighting profile. In another embodiment, a method of operating a lighting system includes receiving, from an individual or a device within a visible range of the individual or device, a lighting profile, and controlling one or more lights of the lighting system according to the lighting profile.

The invention provides a vehicle control method and a vehicle, and relates to the technical field of rearview mirror control. According to the method, when the driving state of a target vehicle meets a preset condition and an obstacle exists around the target vehicle, a target type determination process is executed to screen whether an exterior rearview mirror needs to be adjusted or not. The target type of the obstacle is identified, which can distinguish the degree of influence of different types of obstacles on the visual field. And determining an overturning angle based on the target type and the situation data of the obstacle, and controlling the exterior rearview mirror to overturn to the overturning angle. And based on the target type and the situation data, the adjusting direction and the adjusting amplitude of the exterior rearview mirror are controlled, and the self-adaptability of blind area compensation is achieved. According to the scheme, the obstacle can fall into the visible range in the exterior rearview mirror to be observed by a driver, and the driving safety can be remarkably improved.

A vehicle head-up display control method, apparatus and system, and a computer-readable storage medium. A vehicle comprises a first display screen, a second display screen, a third display screen and a projection display screen, wherein the projection display screen comprises a first projection display region, a second projection display region and a third projection display region, and display content of the first display screen, display content of the second display screen and display content of the third display screen are respectively projected onto the first projection display region, the second projection display region and the third projection display region. The method comprises: acquiring an in-vehicle image collected by an image collection apparatus, and on the basis of the acquired in-vehicle image, determining an optimal screen visible range of a driver; receiving a first input, wherein the first input is used for selecting at least one of a first display screen, a second display screen and a third display screen for projection display; and on the basis of the optimal screen visible range of the driver, controlling the display screen, which is selected by means of the first input, to perform projection display.

The embodiment of the invention provides a map information acquisition method and a related device, the method can be applied to the field of intelligent driving, and the method comprises the following steps: acquiring an image under a perspective view angle, inputting the image under the perspective view angle into a machine learning model, generating map information corresponding to the image under the perspective view angle through the machine learning model, and displaying the map information corresponding to the image under the perspective view angle. The map information indicates a map in a first range under an overlook view angle, the first range is in positive correlation with a visible range of an image under a perspective view angle, a scheme for online construction of the map information is provided, and compared with a thought that the visible range of the image under the perspective view angle is not concerned and the map information in a fixed size range is constructed, the scheme is more efficient and more reliable. According to the method and the device, the images seen through the perspective view angle are displayed in the map information as much as possible, so that the accuracy of the obtained map information is improved.

This invention relates to optical wireless communication systems that use radiation beams for communication. In such systems aiming at the communication partner is not easy especially if the distance between the communication devices is longer and radiation in the non-visible range is used. It is proposed to use an adaptive signal quality indicator in order to provide installing persons and users with a quick and deterministic way of aligning the communication devices.

The invention belongs to the technical field of metering, and particularly relates to an airflow total temperature sensing part measuring head and an error decoupling analysis method, the airflow total temperature sensing part measuring head comprises a stagnation chamber and a thermocouple arranged in the stagnation chamber, and the airflow total temperature sensing part measuring head further comprises a spiral shielding sheet fixedly installed in the stagnation chamber; a spiral airflow channel is formed between the spiral piece of the spiral shielding piece and the inner surface of the stagnation chamber, and the spiral shielding piece completely shields the visible range between the hot contact of the thermocouple and the external environment.

The invention relates to a method for temporally differentially detecting the spectrum of a test object, comprising providing a first conversion pigment which is designed to convert light having a first spectral distribution in the visible range into light having a second spectral distribution in the infrared range. The first conversion pigment is excited by a light pulse in the first spectral distribution range during a first time period and a fraction of the light in the first spectral distribution range which is reflected or transmitted by the test object is detected during a first time interval. During a second time period which follows, a fraction of the converted light which is reflected or transmitted by the test object is detected. According to the invention, the first time interval is selected such that it is substantially within the luminescence lifetime of the first conversion pigment in the first time period.

The invention discloses a vehicle head-up display control method, device and system and a computer readable storage medium, a vehicle comprises a first display screen, a second display screen, a third display screen and a projection display screen, and the projection display screen comprises a first projection display area, a second projection display area and a third projection display area. The display content of the first display screen, the display content of the second display screen and the display content of the third display screen are respectively projected to a first projection display area, a second projection display area and a third projection display area. Determining an optimal screen visible range of the main driver according to the acquired in-vehicle image; receiving a first input, wherein the first input is used for selecting at least one of the first display screen, the second display screen and the third display screen for projection display; and controlling the display screen selected by the first input to perform projection display according to the optimal screen visible range of the main driver.

This invention relates to the field of computer technology, and more particularly to a source code hierarchy location method, electronic device, and medium. The method first obtains the code line hierarchy information of a code file, then determines the target level corresponding to the target code line, the code range corresponding to the target level, and the code range of all target sub-levels based on the code line hierarchy information. Finally, it displays code lines within the visible range that belong to the target level, the code range corresponding to the target level, and the code range of the target sub-levels using different display identifiers. This invention enables rapid and accurate location of the code level of interest to the user.

The invention comprises a method for managing cropland, comprising the steps of: (1) optically measuring level zero data with an orbiting satellite, the level zero data comprising: first reflected cropland radiation, in a visible range of 400 to 1,000 nm; second cropland radiation in a near-infrared range of 1,000 to 3,000 nm; third radiation in a range of 3,000 to 5,000 nm; and emitted radiation, in a thermal infrared range of 8,000 to 12,000 nm; (2) processing, on-board the orbiting satellite, the level zero data comprising a first data storage size, to yield cropland condition information comprising a second data storage size of less than one percent of the first data storage size; (3) receiving from the orbiting satellite to a ground-based communication system the cropland condition information; and (4) relaying at least a portion of the cropland condition information to a farmer within twenty-four hours.

The invention relates to a non-destructive method for determining the percentage of recycled polyethylene terephthalate in a preform (12), characterized in that the method comprises: - a first step (E1) of measuring a first representative value of a transmission factor (T(λ1)) of a wall (16) of said preform (12) for at least a first determined wavelength (λ1) located in the visible range; - a second step (E2) of measuring a second representative value of a transmission factor (T(λ2)) of a wall (16) of said preform (12) for at least a second determined wavelength (λ2) located in the near-infrared; - a third step (E3) of calculating a value (rrPET) representative of the percentage of recycled polyethylene terephthalate present in the preform (12) as a function of the first and second values ​​(T(λ1), T(λ2)) measured during the first step (E1) and the second step (E2). Figure for the abbreviation: Figure 5

The invention relates to the technical field of image processing, and discloses a shadow rendering method and device, equipment and a storage medium. The shadow rendering method comprises the following steps: projecting the contour of a foreground image matting to a virtual ground in a preset virtual three-dimensional scene to generate a shadow projection; comparing visual depths of overlapped pixels in the shadow projection and the foreground matting to adjust a visible range of the shadow projection; and carrying out color mixing on the shadow projection in the visible range and the overlapped pixels of the virtual ground so as to render the shadow projection in the visible range to a preset virtual three-dimensional scene. By means of the method, the shadow effect of foreground image matting can be rendered in the virtual three-dimensional scene, and the sense of reality of shadow rendering and the real-time rendering efficiency are improved.

This positioning system comprises an antenna that receives a satellite signal from a satellite, and a receiver that decodes the satellite signal received by the antenna to generate satellite information, the satellite information including at least a satellite position viewed from the antenna and a reception signal intensity. The positioning system further comprises: a visible range calculation unit that obtains a distribution of satellite positions at which the reception signal intensity is equal to or greater than a predetermined threshold and calculates a visible range from the distribution; and a positioning result output unit that outputs a positioning result on the basis of the satellite information of the satellite in the visible range. This makes it possible to achieve highly accurate positioning with a simple configuration.

The application discloses an air-cooled island finned tube bundle micro-deformation detection method and system, and belongs to the technical field of object deformation measurement. The method comprises the following steps: based on the spatial position of a support member and a platform structure in observation point cloud data, and combined with detection equipment position and posture information and observation ray distribution data, wedge blind area range data is constructed; based on the observation point cloud data and reference geometric model data, the actual center line of each finned tube is extracted and compared with the corresponding reference center line to obtain geometric feature change data of the finned tube bundle; based on the geometric feature change data, micro-deformation index data of the finned tube bundle is calculated; based on the observation ray distribution data and the wedge blind area range data, directional observable reliability is generated; based on the wedge blind area range data and the directional observable reliability, directional compensation is performed on the micro-deformation index data; the application can cover the external visible range of the finned tube bundle and the accessible range of the wedge-shaped limited area, and improve the reliability and timeliness of micro-deformation monitoring.

The application relates to a method for an electronic side mirror vehicle turning field of view expansion system, the electronic side mirror vehicle turning field of view expansion system comprising a coupling parent vehicle and a coupling child vehicle, the included angle between the coupling parent vehicle and the coupling child vehicle being theta, one end of the coupling child vehicle being provided with a center point O point, the O point being movably connected with the coupling parent vehicle, the coupling parent vehicle being provided with a C point, the C point being provided with a sensing unit, the O point being taken as a coordinate origin, the movement direction of the coupling child vehicle being taken as an X axis direction, and a Y axis direction being perpendicular to the X axis direction in a horizontal plane, the coupling parent vehicle being provided with the sensing unit, a control unit and a display unit which are sequentially electrically connected, and the control unit displaying an adjusted field of view region on the display unit through the sensing unit. The electronic side mirror vehicle turning field of view expansion system has the advantages of eliminating a field of view blind area, motor-adjusting a visible range, cutting an image, improving universality and the like.

A video display apparatus includes: an imager that captures a video of surroundings of a vehicle; a transparent display panel installed in a window glass of the vehicle; an identification unit that identifies, from the captured video, a visible range where a passenger views an outside as a range displayed on the transparent display panel; an operation unit that is operable on a surface of the transparent display panel; a recording controller that records the captured video in a storage; a replay controller that replays the recorded video; and a display controller that causes the transparent display panel to display a video of the identified range, wherein when operation is started, the replay controller causes the transparent display panel to display a video at a start of the operation, and when an operation direction is along a travelling direction, the replay controller replays, in a reverse direction, the recorded video.

To achieve high-precision positioning with a simple configuration. [Solution] A positioning system comprising an antenna that receives satellite signals from satellites, and a receiver that decodes the satellite signals received by the antenna and generates satellite information, wherein the satellite information includes at least the satellite position as seen from the antenna and the received signal strength, and further comprises a visible range calculation unit that determines the distribution of satellite positions where the received signal strength is above a predetermined threshold and calculates a visible range from the distribution, and a positioning result output unit that outputs a positioning result based on the satellite information of satellites within the visible range.

This disclosure provides a method for clustering point light sources, a rendering method, and a computer program product. The method includes: acquiring a point light source dataset corresponding to a target geographic region, wherein the point light source dataset includes the identifier, location, and radius of each point light source, and the number of point light sources is two or more; establishing an association between the identifier of each point light source and the geographic grid obtained by pre-dividing the target geographic region based on the location range of each point light source and the geographic grid obtained by pre-dividing the target geographic region; determining the target geographic grid related to the visible range of the view frustum based on the location range of the geographic grid, the view frustum parameters, and the camera pose; using the point light sources associated with the target geographic grid as point light sources to be processed, and clustering the point light sources to be processed based on the view frustum parameters, the location and radius of the point light sources to be processed, and the preset number of blocks of the view frustum clipping plane, wherein one cluster corresponds to one block of the clipping plane, and the number of point light sources in each cluster does not exceed a preset number threshold.

A stereoscopic image display of the disclosure includes a display panel and a parallax barrier. The display panel includes a plurality of pixels and displays a plurality of parallax images forming a stereoscopic image. The parallax barrier is disposed facing the display panel and includes a shielding part having a surface on which a pattern of design is formed and a plurality of openings through which light emitted from the display panel passes. In an environment in which the stereoscopic image is observed, a spatial frequency of the pattern of design is set within a visible range determined based on a contrast sensitivity function.

[Problem] To provide technology for assisting in alignment. [Solution] Constructed is an ophthalmic device comprising: a measurement optical system that measures a subject eye on the basis of reflected light output from the subject eye in response to incident light input to the subject eye; a relative position detection optical system that detects the relative position of the subject eye, which is present within a prescribed range where detection is possible, with respect to the measurement optical system; a visual target optical system that guides light output from a visual target to a prescribed range where the visual target is visible; and a switching unit that switches the visual target being viewed by the subject eye when the subject eye moves from outside to inside of a prescribed range which constitutes at least a portion of the range where detection is possible.