36 results about "Illumination problem" patented technology

The invention discloses a newborn-painful-expression recognition method based on dual-channel-characteristic deep learning. The newborn-painful-expression recognition method includes the steps that firstly, newborn facial images are grayed, and a Local Binary Pattern (LBP) specific chromatogram is extracted; secondly, grayscale images of the parallelly-input newborn facial images and the characteristics of two channels of LBP characteristic images of the grayscale images are deeply learned with a dual-channel convolutional neural network; finally, the fusion characteristics of the two channels are subjected to expression classification through a classifier based on a softmax, and expressions are divided into the calmness expression, the crying expression, the mild pain expression and the acute pain expression. According to the newborn-painful-expression recognition method, the grayscale images and the characteristic information of the two channels of the LBP characteristic images of the grayscale images are combined, the expressions such as the calmness expression, the crying expression, the mild pain expression and the acute pain expression can be effectively recognized, the quite-good robustness of the illumination problem, the noise problem and the shielding problem of the newborn facial images is achieved, and a new method and way are provided for developing a newborn-painful-expression recognition system.

A more effective larynx or vocal fold examination is facilitated when an image recording device, preferably a color image recording device comprising three modes is made available, a face-recording recording mode with a low recording frequency or image repetition frequency, respectively, but with a high resolution, a further face-recording recording mode with a higher image repetition frequency but with a lower resolution, and a one-dimensional, for example, row-recording mode also having a higher image repetition frequency. By the switchability of the image recording device between those modes the examining doctor is capable of first getting an overview by means of the slower image recording mode, wherein this may also be done in color, as due to the slower recording frequency this mode is not subject to the illumination problems like the high-speed camera.

The invention discloses a dark channel prior and variation Retinex-based underwater image enhancement method. The underwater image enhancement method comprises the following steps of based on the meanvalue and the variance of each channel, linearly stretching on an original degraded underwater image in the RGB color space so as to correct the color cast; subjecting the image after being subjectedto color cast correction to defogging treatment based on the dark channel prior theory, removing the influence of backward scattering, and improving the contrast ratio of the image; converting the processed image from the RGB color space to the lab color space, and solving the uneven illumination problem on an L component by using a variable Retinex model; recombining the enhanced L component with a component a and a component b, and converting the image back to the RGB color space to obtain a final enhanced image. According to the invention, the problems of color degradation, low contrast ratio, fuzzy details and uneven illumination in an underwater image are solved. Meanwhile, the visual quality of underwater degraded images is improved.

The invention relates to a method for obtaining human face illumination invariant images based on multiscale anisotropic diffusion, belonging to the field of image processing technologies. The invention is based on a Lambertian convex surface model for decomposing the human face image to a small-scale feature image and a large-scale feature image. The small-scale feature image can be regarded as the ideal human face illumination invariant feature image. The core is characterized in that new descriptors with inconsistent intervals are introduced for strengthening edge retention capability of an anisotropic diffusion algorithm to low frequency domain images so as to greatly weaken image halo effect of the algorithm; meanwhile, a new transfer coefficient is provided, and noised caused by edge sharpening is reduced; and an anisotropic diffusion constraint is introduced, and the method is more suitable for treating the illumination problem of the human body image. Experiments show that the invention can obtain good treatment effect even in extremely poor lighting conditions and can effectively improve robustness of face recognition or face certification to changes in lighting conditions.

The invention provides a construction method for non-negative feature extraction and face recognition application, which comprises the following steps: characterizing loss degree by cosine measure; characterizing loss degree after matrix decomposition by cosine measure between matrices; and determining loss degree by cosine measure between matrices. A method for constructing an objective functioncomprises that step of characterizing a loss degree by a cosine measure to form an objective function; obtaining an update iteration formula: the objective function is transformed to form the optimization problem to be solved, and the updated iterative formula of the algorithm is obtained by constructing auxiliary function. The invention has the advantages that: 1. the illumination problem encountered in the face recognition process is solved; 2. the convergence of the algorithm proposed by the invention is not only proved in theory by using auxiliary function, but also verified in experiment,and our algorithm has higher convergence; 3. compared with the related algorithm in the face database with illumination influence, the result shows that the algorithm of the invention has certain superiority.

The invention discloses a self-adaptive exposure control method and system for a subcutaneous vein imaging machine. The self-adaptive exposure control method and system for the subcutaneous vein imaging machine can be used for solving the following problems but not limited to the following near-infrared light illumination problems which are caused by individual differences of puncture objects, different actual operation conditions and inconsistent conditions such as imaging distances and angles of different areas of portions, pending to be punctured, of the puncture objects.

The invention relates to fiberglass reinforced plastic, in particular to transparent variable flame retardant fiberglass reinforced plastic. The transparent variable flame retardant fiberglass reinforced plastic comprises a transparent flame retardant glass plate layer containing fiber glass and a transparent variable layer. The transparent variable layer is prepared with substance comprising copal gum, photochromic glass micropowder and an initiator according to 100:20-90:1-5 by weight. The preparation method of the transparent variable flame retardant fiberglass reinforced plastic comprises the following steps: the transparent flame retardant glass plate layer is prepared; the mixture of the transparent variable layer is prepared; and the transparent variable layer is prepared. As the technical solution is adopted, the illumination problem in buildings is solved so that the light intensity in the buildings can change with the illumination, thus meeting the requirement of illumination, improving the safety of the buildings and producing great economic benefits.

The invention discloses a stair ladder structure including a brightness control device, a step tread face and a step vertical face perpendicular to the step tread face. A skirting line for lighting isarranged on the connection of the step tread face and the step vertical face, and is provided with a vertical face illuminating light bar used for illuminating the step vertical face and a tread faceilluminating light bar used for illuminating the step tread face; the brightness control device detects the step tread face to indicate pressure by a pressure sensor; and when the pressure sensor returns to a pressure value, the brightness control device lowers the brightness of the tread face illuminating light bar and the vertical face illuminating light bar. The illumination problem of an archbridge is solved through arranging the light bars on the steps.

The invention relates to the technical field of solar lamps, in particular to a split type solar lamp. The split type solar lamp comprises a lamp holder, a lamp head and a hook, wherein the lamp head is installed on the lamp holder in detachable mode, a handle and a switch are arranged on the lamp holder, a thin film solar panel is installed on the surface of the lamp holder, and a storage battery is installed in the lamp holder. According to the split type solar lamp, the lamp head can be separated from the lamp holder, the thin film solar panel covers the surface of the lamp holder, the storage battery is arranged in the lamp holder, and the lamp holder can be hung outdoors so as to be charged. When the split type solar lamp is used, the lamp head is installed on the lamp holder for indoor illumination, and therefore the split type solar lamp is practical and convenient, solves illumination problems of old wood houses, and solves the problem that the old wood houses catch fire due to circuit aging.

The invention relates to the technical field of automotive headlamps, and particularly to an automobile lamp used for replacing an H4 lamp bulb. The automobile lamp comprises a first light emitting diode, a second light emitting diode, a lens, a reflecting element, a radiator, an additional radiator and a positioning disc, wherein the first light emitting diode and the second light emitting diodeare distributed above and below the radiator separately; the reflecting element is distributed right above the light emitting diodes; the lens is arranged at the front end of the radiator; and the additional radiator is arranged at the rear end of the radiator. According to the automobile lamp used for replacing the H4 lamp bulb provided by the invention, the diffused illumination problem of the dipped headlight is effectively solved by the first light emitting diode through the condensation of the additionally mounted lens, the preinstalled reflecting mirror and the shading mechanism on the radiator, the light source is clear and distinct, not dazzling, uniform in brightness, little in light dissipation, clear in the cut-off line, small in size and simple in structure; besides, the H4 halogen bulb can be directly replaced, that the original headlamp assembly does not need to be improved or redesigned, the service life can reach 40,000 hours or longer, and the cost is greatly saved.

The invention discloses a method for achieving illumination of a highway tunnel without an artificial light source. The method is characterized by including the steps that no artificial light source is arranged in the whole highway tunnel, a sunshade with the segmented transition light transmittances is arranged outside a tunnel portal, and a hollow-out portion is arranged on the sunshade; the illumination problem in the tunnel is solved through the sunshade and reflecting signs in the tunnel. The danger level is reduced to the largest extent according to the eye adaptation time and economic conditions, the light-transmitting material and the light-transmitting area of a safety area are designed to gradually change according to the illumination transition rate which the eyes can adapt to naturally, so that a driver drives a car comfortably, and the method is the embodiment that highways are designed in the people-oriented principle. The method can be adaptive to long-sized highway tunnels at various areas, especially long-sized highway tunnels with large illumination changes, and has the advantages that the structure is simple, arrangement is convenient, and the use effect is good.

The invention discloses a control method for improving the output utilization rate of a photovoltaic cell panel. The control method is based on a direct-current-side switching topological structure ofa photovoltaic grid-connected system. The overall topological structure of the photovoltaic grid-connected system is as follows: a photovoltaic array and an inverter are connected by a switching device including an on-off device, a controller, and a signal acquisition processor. The control method comprises: a photovoltaic system parameter and a direct-current-side real-time current and voltage are obtained; numerical values of output powers of N series of cell panels are grouped and a cell panel output utilization rate objective function is constructed; and the switching device switches theinverter path number automatically based on the objective function, so that the photovoltaic system works in an optimal state all the time. According to the invention, in order to solve the low illumination problem and partial shadow problem of the cell panel, the control method enables the direct-current-side circuit to be switched to improve the output utilization rate of the photovoltaic cell panel.

The invention discloses a novel intelligent control system for a power distribution cabinet. The interior of the cabinet body is provided with a separator plate, and the separator plate is provided with vent holes. The separator plate is of an elastic telescoping structure, and has various forms. The interior of the cabinet body is also provided with an illumination unit which is disposed on a side surface, close to the bottom surface of the cabinet body, of the separator plate; a detection unit which is used for detecting the opening or closing state of a cabinet door; an adjustment unit which is used for adjusting the form of the separator plate; and a control unit which is used for obtaining the state of the cabinet door through the detection unit, and controlling the operation of the illumination unit and the adjustment unit according to a state instruction of the cabinet door. The interior of the cabinet body is provided with the separator plate with the alterable form and the illumination unit, and the state of the separator plate and the illumination mode of the illumination unit are adjusted according to the opening or closing state of the cabinet door, thereby solving an illumination problem when the cabinet door is opened and a ventilation problem when the cabinet door is closed. Meanwhile, when the cabinet door is opened, a platform for placing tools is provided fora worker, and a complete and convenient use environment is provided for the worker during the maintenance of the power distribution cabinet.

The invention discloses an active mutual induction lamp group, The invention relates to the technical field of electronic lamps and luminaires, comprising a housing, a solar panel, a control panel, anLED and a battery, wherein the solar panel is fixed on the housing to receive external sunlight, the solar panel is connected with the control panel and the control panel is electrically connected with the LED and the battery; As that us enters the courtyard at night, When a single lamp senses the body, The light is on, At that same time, After receiving the working signal, other lamps in the active mutual induction lamp group spaced within a certain range also start to work, and at the same time, an operation indication signal is sent out when the lamps are lit, which is then transmitted tolamps in other ranges of the lamp group, and the lamps in the whole lamp group are lit up at the first level, so as to improve the overall brightness and narrow illumination problem.

Disclosed is technology addressing lighting issues using a signature perforated design diffuser panel that provides a dual purpose—artistic and artificial light source. Stated differently, the disclosed technology provides diffused lighting while creating a signature geometric perforated pattern. When turned off, the technology is wall art, and, when turned on, it is wall art that provides a signature lighting experience. Embodiments also include the same diffuser technology used to modify and condition natural light sources (e.g. sun light).

The invention discloses a plant illumination area light source with high light mixing uniformity. The plant illumination area light source comprises two parts including a cooler part with a good cooling effect and a light source module; the light source module comprises LED lamp beads, a diffuse reflection baseboard, a peripheral frame, light mixing elements and an emergence panel, wherein the light mixing elements are installed on the LED lamp beads and made of PMMA; the LED lamp beads are driven by an external dual-modulation technique driving peripheral circuit, wherein the dual-modulationtechnique driving peripheral circuit is a driving peripheral circuit combining PAM and PWM, and integrates advantages of high luminous efficiency of PAM and flexible dimming performance of PWM. On thecondition that average current is not changed, the current peak value is adjusted to make up for color temperature drift, so that a lamp outputs light with stability, accuracy and high efficiency. Existing problems are solved mainly from the view of optics, the LED plant illumination area light source which is scientific and reasonable is invented, and the invention of the lamp provides a scientific and effective solution to the plant illumination problems of plant factories.

Light-storing illumination biopsy forceps comprise the biopsy forceps and a light supplier which is internally provided with an LED (light emitting diode) lamp so as to provide a light source. The light-storing illumination biopsy forceps are characterized in that a catheter at the head of the biopsy forceps is provided with a light emitting powder layer for storing and emitting light; the light supplier is provided with an insertion hole; the head of the biopsy forceps together with the light emitting powder layer is inserted in the insertion hole of the light supplier so as to store light; and the light supplier comprises a shell with one insertion hole, a switch arranged on the shell, a circuit board arranged in the inner cavity of the shell, a series of LED lamps uniformly distributed on the inner wall of the insertion hole, and a base for fixing the light supplier, wherein the LED lamps are welded on the circuit board and the circuit board is electrically connected with an external power supply through a power line. In order to solve the poor illumination problem of the existing biopsy forceps, the invention provides the light-storing illumination biopsy forceps and the light-storing illumination biopsy forceps have the characteristics of being simple, convenient and reliable to operate, excellent in illumination effect, and the like.

The invention discloses a solar outdoor electric control box with an internal illumination function. The solar outdoor electric control box comprises a box body, a box door, a solar battery panel, a storage battery, a metal hose pipe, an LED (light emitting diode) lamp and a contact switch, wherein the solar battery panel is arranged above the box body, the storage battery is arranged in the box body, the contact switch is arranged at the right upper part of the interior of the box body, the metal hose pipe is connected with the storage battery, the LED lamp is connected with the metal hose pipe, the solar battery panel, the contact switch, the storage switch and the LED lamp are respectively connected by conducting wires to form a closing circuit, and the conducting wire between the storage battery and the LED lamp is arranged in the metal hose pipe. The solar outdoor electric control box has the advantages that the illumination problem in maintenance of the electric control box at night is effectively solved; by arranging the metal hose pipe, the LED lamp can irradiate the light to any position of the electric control box, and the convenience in use is realized; by arranging the solar battery panel, the energy-saving and environment-friendly effects are realized.

The invention discloses a guardrail anti-collision device with overspeed warning and lighting, which includes: a host computer and several lower computers; the host computer includes: an upper-level microprocessor, and an upper-level lighting module respectively connected with the upper-level microprocessor, Upper-level power supply module, upper-level speed measurement module, upper-level communication module and upper-level optical sensor; the lower computer includes: a secondary microprocessor, and a secondary lighting module, a secondary power supply module, and a secondary A communication module and a secondary optical sensor; the upper communication module of the upper computer is wirelessly connected with the secondary communication module of the lower computer, and the secondary communication modules of the lower computer are connected wirelessly. The present invention can not only solve the lighting problem of the curve, but also solve the problem of light pollution on the road surface of the viaduct; the present invention has an overspeed warning function, prompting the driver to reduce the speed to pass safely; car accident.

The invention belongs to the field of communication, and specifically relates to an intelligent illumination control system and method for a narrow and long gallery. The system comprises the following modules: a signal receiving module, a positioning module, a comparison module, and an output module. The method comprises the following steps: transmitting a signal to a PLC; enabling the forwarding and reverse address registers of a sensor to be arranged as 1; judging the moving direction of a moving object; sequentially starting lamps in front of the moving object through the PLC according to the moving direction of the moving object, and sequentially turning off lamps behind the moving target. The system and method has the following beneficial effects: 1, the system is simple in structure, and is convenient in installation; 2, the system is low in cost, and solves an illumination problem of the moving target during bidirectional movement in the narrow and long gallery.

The invention relates to an illumination stretcher. The illumination stretcher can be used for solving the stretcher illumination problem under the conditions that patients are transferred when the light ray is insufficient or patients are transferred at night by virtue of assembled LED (Light-Emitting Diode) lamps, is beneficial to patient condition observation and various operations, can be used for gaining time for rescuing the lives of the patients, simultaneously regulating the direction by virtue of universal wheels and enlarging the illumination range of the LED lamps, and is simple in installation.

The present invention provides an unpackaged LED flashlight driver chip, a manufacturing method of an unpackaged LED flashlight driver chip, and an unpackaged LED flashlight, wherein the method includes: providing a P-type well, an NMOS source drain, and a PMOS source. A drain, a lead hole, and a metal lead substrate; a protective layer including a light-shielding metal layer is formed on the substrate. The non-encapsulated LED flash driver chip produced by the above method can not only not affect the appearance and brightness of the terminal product, but also can effectively solve the problem of increased leakage current of the driver chip due to illumination.

The invention relates to an illumination wheelchair. The illumination wheelchair can be used for solving the wheelchair illumination problem under the conditions of insufficient light ray or at night by virtue of assembled LED (Light-Emitting Diode) lamps, simultaneously is beneficial to patient condition observation and the execution of various technical operations, is simple in installation and is economical.

The invention aims to solve the defect of low utilization ratio in the vehicle training field which can not be used at night during the consecutive 24 hours of a day, provides a lighted sign post and a lighted rail in the vehicle training field at night, and solves the sign and the illumination problems in vehicle training at night. The lighted sign post and the lighted rail of the invention is made from a super-bright white light LED which is made into a light source lighted sign post, thereby playing a role of sign and illumination in a certain range, and satisfying the sign and the illumination of the vehicle training field which is poor in light at night. Because the LED is a good energy-saving material, the electric power consumption of the lighted sign post and the lighted rail is inappreciable. The effect of one vehicle training field can be doubled as a result of the adoption of the energy-saving special lighted post and the lighted rail, thereby greatly relieving the field problem of a driving school.

The invention relates to an illumination threshing machine. According to the invention, the illumination problem that rush harvesting is generated at night or when light is inadequate is solved through installing an LED (light-emitting diode) illuminating lamp on the top of the illumination threshing machine. The illumination threshing machine is suitable for installation of a small-size threshing machine.

The invention discloses illuminable slippers. The rear of the middle of a sole of a slipper is embedded with a tiny battery; the middle on the front of the upper surface of the slipper is provided with an illuminating lamp bead; and the illuminating lamp bead and the tiny battery are connected with upper and lower ends of a spring switch in the middle of the sole of the slipper through leads. The illuminable slippers can effectively solve the illumination problem when a user goes to the bathroom at night, and effectively reduce power consumption at night.

The invention discloses a novel intelligent control system for a power distribution cabinet. The interior of the cabinet body is provided with a separator plate, and the separator plate is provided with vent holes. The separator plate is of an elastic telescoping structure, and has various forms. The interior of the cabinet body is also provided with an illumination unit which is disposed on a side surface, close to the bottom surface of the cabinet body, of the separator plate; a detection unit which is used for detecting the opening or closing state of a cabinet door; an adjustment unit which is used for adjusting the form of the separator plate; and a control unit which is used for obtaining the state of the cabinet door through the detection unit, and controlling the operation of the illumination unit and the adjustment unit according to a state instruction of the cabinet door. The interior of the cabinet body is provided with the separator plate with the alterable form and the illumination unit, and the state of the separator plate and the illumination mode of the illumination unit are adjusted according to the opening or closing state of the cabinet door, thereby solving an illumination problem when the cabinet door is opened and a ventilation problem when the cabinet door is closed. Meanwhile, when the cabinet door is opened, a platform for placing tools is provided fora worker, and a complete and convenient use environment is provided for the worker during the maintenance of the power distribution cabinet.

The invention relates to a method for obtaining human face illumination invariant images based on multiscale anisotropic diffusion, belonging to the field of image processing technologies. The invention is based on a Lambertian convex surface model for decomposing the human face image to a small-scale feature image and a large-scale feature image. The small-scale feature image can be regarded as the ideal human face illumination invariant feature image. The core is characterized in that new descriptors with inconsistent intervals are introduced for strengthening edge retention capability of an anisotropic diffusion algorithm to low frequency domain images so as to greatly weaken image halo effect of the algorithm; meanwhile, a new transfer coefficient is provided, and noised caused by edge sharpening is reduced; and an anisotropic diffusion constraint is introduced, and the method is more suitable for treating the illumination problem of the human body image. Experiments show that theinvention can obtain good treatment effect even in extremely poor lighting conditions and can effectively improve robustness of face recognition or face certification to changes in lighting conditions.

The invention mainly relates to a lamp holder, in particular to a combined lamp holder convenient to disassemble and assemble. The combined lamp holder comprises an upright (1) and a base plate (2), and is characterized in that the upright (1) comprises a rod head (11) and a rod section (12), wherein the rod head (11) comprises a bent section and a straight section; the rod section (12) is a straight rod; a base plate interface (21) is arranged at the upper part of the base plate (2); and the upright (1) is perpendicularly inserted into the base plate interface (21). Through the adoption of the combined lamp holder, the height of the upright can be adjusted by adjusting the number of the pairs of connecting pieces and rod sections, so as to solve the illumination problem under various complex conditions, which facilitates disassembly as well as mass storage and transportation and achieves portability.

The invention belongs to the LED application field, and especially relates to an illumination circuit and explosion-proof lamp with a gas alarm function; the illumination circuit is respectively controlled by an illumination switch and a detection switch, so illumination and alarm functions can be singly used or combined for usage; the explosion-proof lamp having the illumination circuit with gas alarm function can be used for explosion-proof place inspection tours, so illumination problems in inspection can be solved, and combustible gas leakage detection and alarm function can be provided, thus further improving perception degree for dangers by work people; the work people can timely take prevention measures and inform other work people to flee from the dangerous place, thus ensuring work people life and public property safety, and reducing losses.