1392results about How to "Guaranteed clarity" patented technology

The invention discloses a mobile agent-based Internet of things middleware development method, which is used for remarkably improving the application capability of Internet of things middleware and reducing the development cost of Internet of things middleware application for diversified quality of service (QoS) needs of the Internet of things and dynamic network states. To realize a mobile agent-based Internet of things application program, the method is required to be characterized in that: the functions of the whole application program are required to be realized by a mobile agent, and the functions of the mobile agent can be dynamically changed on a network, and can be dynamically inserted into or deleted from hardware equipment to change own functions of the hardware equipment so as to achieve the aim of reprogramming of the network; and the agents can cooperate and communicate with one another. In the method, powerful and flexible Internet of things middleware is constructed to maximally shield the low-level details of the network and completely develop the technical advantages in the aspects of multi-type data sensing, short-distance wireless communication, self-networking, multivariate data cooperative processing and the like.

The invention discloses a glaze and preparation of an embossment phantom glazed brick. The glaze comprises a ground glaze, a surface glaze and an embossment phantom printing glaze, wherein the ground glaze is prepared from a frit b, zirconium silicate, kaolin, calcined kaolin, potassium feldspar powder, fired talc, aluminum oxide powder, quartz powder, carboxymethyl cellulose, sodium tripolyphosphate and water; the surface glaze is prepared from a frit, the frit b, a frit c, kaolin, carboxymethyl cellulose, sodium tripolyphosphate and water; the embossment phantom printing glaze is prepared from parent glaze powder, zinc oxide, tin oxide, cerium oxide and ceramic adhesive roll-printing oil; the parent glaze powder is prepared from the frit c, kaolin, carboxymethyl cellulose, sodium tripolyphosphate and water. The preparation method comprises the following steps: sequentially applying the ground glaze and the surface glaze on a green brick, then printing the embossment phantom printing glaze, performing inkjet printing, and finally firing to obtain the embossment phantom glazed brick. The product disclosed by the invention has unique decorative effect and visual aesthetic feeling; moreover, each indicator can reach the standard requirements, so that the product has relatively strong universality, and is easily popularized in the industry.

The invention relates to a cleaning agent for an automobile windshield, which consists of the following components in percentage by weight: 1 to 50 percent of monobasic alcohol, 1 to 10 percent of ethylene glycol, 0.005 to 0.1 percent of complexing agent, 0.005 to 0.1 percent of cationic surfactant, 0.005 to 0.1 percent of nonionic surfactant, 0.1 to 3 percent of composite corrosion inhibitor, 0.005 to 0.1 percent of colorant and the balance of water. The cleaning agent has cleaning, anti-freezing, anti-fog, anti-corrosion, anti-static, lubricating properties, can effectively remove dust, dirt, spray mark, gum, lac and the like on the windshield, and has high stability of high and low temperature and no damage to the automobile windshield.

The invention discloses a method and device for performing adaptive denoising on a video image. The device comprises a video image reading module, an edge detection module, a filtering mode selection module and a filtering module; the method comprises the following steps of: reading in a frame of video image from a buffer zone, respectively calculating motion vectors between each pixel in the frame of image and the pixel at the same location in a neighboring frame, and respectively executing the edge detection on each pixel in the frame of image; respectively selecting the filtering mode having corresponding intensity for each pixel according to the edge detection result and the calculation result of the motion vector and of each pixel, and then, correspondingly filtering each pixel by a Gaussian similarity filter. The method and the device have obvious denoising effect on various noises of different scene sequences, and can effectively remove noises by combination of a time domain and a space domain.

The invention discloses a method for aerially photographing a crop canopy picture for crop nitrogen analysis and soil fertilization guidance by using an unmanned aerial vehicle. The crop canopy picture is aerially photographed through the unmanned aerial vehicle, meanwhile, aerial latitude and longitude corresponding to the crop canopy picture are obtained, and crop nitrogen analysis and soil fertilization guidance are carried out by combining picture information and latitude and longitude information. According to the obtained method, large-area farmland information can be quickly obtained, influence and limitation of crop growth and farmland environments are avoided, a crop nitrogen state is diagnosed by using color parameters of the picture and the nitrogen fertilizer topdressing index is recommended, the method is accurate and reliable, accurate management of a nitrogen fertilizer is facilitated and better economical and ecological benefits are achieved. The method is fast and simple in operation, stable and reliable in structure, low in operation cost and beneficial to farmland application and popularization; and fine farming of the farmland can be significantly promoted. The aerial photograph equipment of the unmanned aerial vehicle is simple in structure and beneficial to efficient and stable aerial photographing of the crop canopy picture.

The invention discloses an imaging method and an imaging system of dynamic optical fields of multichannel space-time coding apertures, which comprise the steps of establishing a five-dimensional dynamic optical field module of space-time coding, introducing exposure time regarded as a time dimension into coding apertures based on a four-dimensional optical filed, and achieving space-time joint coding of a aperture mode and orthogonal space-time coding apertures based on multiplexing; estimating motion fields, eliminating motion blur, and achieving recovery of motion blur images based on exposure time coding; reestablishing multichannel depth super resolution; and achieving decoupling of motion fields and depth fields and recovering full focus images. Through multiplexing, signal to noise ratio of images and influence of shutter noise are reduced, and optical filed imaging quality is improved. Frequency response characteristics of the exposure time decoding and recovery of the motion blur images can improve definition of images after being recovered, and reestablishment of the depth super resolution improves depth resolution and modifies estimation errors of depth images with low resolution.

The invention relates to a monitoring camera with self-cleaning function based on the Internet of Things, which includes a support and a camera arranged on the support. The bottom of the support is provided with a first groove, and a folding mechanism is provided in the first groove. An adjustment mechanism is provided on the folding mechanism, a second groove is provided on the side wall of the first groove, and a cleaning mechanism is arranged in the second groove. When monitoring, the folding mechanism can store the camera in the support, which plays the role of energy saving protection and prevents dust from being contaminated. When the lens of the camera is polluted, with the cooperation of the folding mechanism and the adjusting mechanism, the camera can be sent into the second groove, and the cleaning mechanism located in the second groove can wipe the lens of the camera. Compared with the existing fixed-installation monitoring camera, the monitoring camera not only saves energy, but also keeps the camera clean at all times, ensuring the clarity of shooting.

The present invention discloses a rapid detection system of a railway tunnel lining surface disease. The system comprises: an image rapid collection unit S1 configured to collect lining section imagesP1-Pn; a section scanning unit S2 configured to convert an overall dimension to first space coordinates (x, y) corresponding to a plurality of pixel points in the lining section images P1-Pn; a mileage and synchronization unit S3 configured to send synchronization triggering signals to the image rapid collection unit S1 and the section scanning unit S2 to allow the two to perform sampling based on a travel distance and obtain mileage data z; a compensation unit S4 configured to obtain a relative displacement d and a deflection angle [Alpha] of a vehicle body relative to an initial state in aprocess of detection of vehicle travel; and an image processing unit S5 configured to form a three-dimensional tunnel lining surface image having geometrical characteristics and spatial positions of diseases. The detection system provided by the invention is convenient to install and high in resolution, can perform correction of a measurement value and can observably improve the tunnel lining surface disease detection efficiency.

The invention discloses a monitoring camera capable of achieving self-cleaning. The monitoring camera comprises a shell, wherein a piston cylinder ix fixedly connected with the upper left corner of the inner cavity of the shell, a piston is connected with the interior of the piston cylinder in a sliding manner, the top end of the piston communicates with a push tube, the top end of the push tube sequentially penetrates through the piston cylinder and the top of the shell and extends to the upper side of the shell, the top end of the push tube communicates with a cleaning cylinder, a connectiontube communicates with the bottom of the inner cavity of the cleaning cylinder, and a pressure valve is fixedly connected with the surface of the connection tube. The invention relates to the technical field of monitoring equipment. The monitoring camera capable of achieving self-cleaning, the air blown in by an air pump in the early stage can be sealed in the piston cylinder and the push tube without being exhausted by using a pressure valve, so that the air can push the piston upwards, and thus a cleaning brush moves to the left side of the camera; the cleaning brush can rotate under the drive of an impeller which moves via the blowing of wind, so that the cleaning brush can clear the surface of the camera, and thus the surface of the camera is clean, and the shooting definition of thecamera can be ensured.

The embodiment of the invention discloses a video coding method and device, equipment and a storage medium, and the method comprises the steps: enabling a server to obtain a to-be-coded target video frame sequence when video coding needs to be carried out, and determining a region of interest in the target video frame image for each target video frame image in the target video frame sequence; andadjusting the initial quantization parameter values of the image block of the region of interest and the image block of the non-region of interest in the target video frame image to obtain a target quantization parameter value, so that the target quantization parameter value of the image block belonging to the region of interest is smaller than the target quantization parameter value of the imageblock belonging to the non-region of interest. Thus, in the process of encoding the target video frame sequence according to the target quantization parameter value to obtain the video stream, more code rates are allocated to the region of interest, the definition is ensured, less code rates are allocated to the non-region of interest, and the flow generated by video encoding is reduced, so that the network transmission bandwidth occupied by the video stream is reduced, and the transmission efficiency is improved.

The invention provides an automatic drawing device and a method, which relates to the technical field of robot drawing. The automatic drawing device and the method of the invention transform unknown environmental information into a two-dimensional dynamic raster map recognizable by a robot. When the robot moves, the raster map follows suit and updates as well, which avoids the multiple times of adjustments seen by manual drawing and the tedious work required to follow the movement of the robot, therefore, reducing the time for the robot to draw greatly. In addition, through the establishment of a quadtree model, moving targets can be clearly defined; with one time path planning on a local part of the raster map, a whole process can be done automatically, achieving high computational efficiency and simple programming. And at the same time, the robot can acquire sufficient cloud data to ensure the clarity of the map.

The invention discloses a high-performance infrared-visible fusion detection method, which comprises the steps of: image preprocessing, which is implemented by carrying out histogram equalization on an infrared image, widening a grayscale level with a large number of pixels in the image, and reducing a grayscale level with a small number of pixels to obtain a clear image; image registration, whichis implemented by detecting edges of the infrared image and a visible light image by means of a Canny operator, then constructing an image scale pyramid to extract a Fast feature point, and performing image registration; image fusion, which is implemented by performing image fusion of infrared and visible light on the images by adopting a fusion algorithm to obtain a grayscale fusion image; and color mapping, which is implemented by adding components of a visible light color image to the grayscale fusion image to obtain a color fusion image. The high-performance infrared-visible fusion detection method can ensure the precision of image fusion while removing noise, maintains the advantages of the infrared image and the visible light image, and ensures image definition.

The invention aims to provide a Tetrolet transform-based multichannel satellite cloud picture fusing method, which comprises the following steps of respectively performing image histogram equalization processing on multichannel cloud pictures to be fused, and respectively performing Tetrolet transform to obtain a low frequency coefficient, a high frequency coefficient and mosaic coverage values corresponding to the low frequency coefficient and the high frequency coefficient; in a low frequency part of a Tetrolet domain, decomposing again by using a Laplacian pyramid, taking a mean value for a top layer, and reconstructing after taking large parts of grey absolute values of other layers; in a high frequency part of the Tetrolet domain, taking a larger part of high frequency coefficient standard deviation in each image mosaic, and taking corresponding values as the mosaic coverage values; obtaining a final fused image through Tetrolet inverse transformation. Experimental results show that the method can be well used for fusing multichannel cloud pictures, the fused image is good in visual effect and can clearly retain typhoon eye and cloud system detail information, a typhoon center is positioned at high accuracy by using a fused result, and the method is suitable for typhoons with eyes and non-eye typhoons.

The embodiment of the invention provides quantum dot ink and a preparation method thereof and relates to the technical field of quantum dots, wherein the preparation method of the quantum dot ink comprises: carrying out ligand exchange on a quantum dot stock solution and a ligand in the argon shield and under the condition of 50-70 DEG C; transferring the solution obtained by ligand exchange into a centrifugal bottle, adding a precipitation promoting additive and a quantum dot dispersion promoting additive, and carrying out centrifugal purification to obtain a quantum dot precipitate, carrying out vacuum drying on the quantum dot precipitate to obtain quantum dot powder; and mixing the vacuum dried quantum dot powder with a non-polar solvent according to a certain mass ratio to obtain the quantum dot ink. According to the quantum dot ink and the preparation method thereof provided by the invention, the prepared quantum dot ink can be used for an ink-jet printing method, and most of quantum dots are about to be remained after a volatile solvent in the ink is volatilized, so that the requirement for the quantity of current carriers in the quantum dots when a photoelectric device is conducted as well as the brightness and the definition when pictures and characters are imaged are guaranteed.

The invention relates to an image processing method, device and terminal, and the method comprises the steps: carrying out the scale change of a first image and a second image, and obtaining space representation sequences at the two scales, wherein the first and second images have overlapping parts; respectively extracting feature points based on pixels in the two space representation sequences, and obtaining feature points of all scales corresponding to the first and second images; carrying out the clustering of the feature points of all scales into different clusters based on the similarity of feature points of the same scale; respectively determining matching points based on the feature points in the clusters in the first and second images; and carrying out jointing and fusion of the two images based on the matching points. According to the embodiment of the invention, the method achieves the effective detection of cracks and grooves on a highway pavement, is high in accuracy, is good in instantaneity, and facilitates the formulation of a repair strategy for a broken pavement.

The invention discloses a male and female graine laser separator and a separation method thereof. The separator comprises an elevated working platform, an egg raising paper positioning system, a graine color image processing system, a laser generation and light deflection scanning and egg launching system, and a computer. The separation method comprises the following steps: starting the separator, resetting the shifted working platform, placing egg raising paper on a negative-pressure adsorption platform, and starting an air pump to absorb the egg raising paper to be flat; starting a color image acquisition program, and controlling a color image sensor to shoot an egg raising paper image and transmit the egg raising paper image to the computer which processes data, gives out a work instruction for launching time-sequence laser pulse to a laser generator and an electric control device, and gives out a work instruction for light deflection scanning to a galvanometric scanning and electric control device, and generating laser beams to shoot female graine; and placing novel egg raising paper after the task is completed, and repeating the steps. The separator can automatically and accurately separate male and female graines with different graine colors at a high speed so as to save labor and improves the separation precision.

The invention relates to an ink-jet penetrated polished semitransparent ceramic sheet. The ink-jet penetrated polished semitransparent ceramic sheet comprises a semitransparent green body containing an ink dyeing assistant agent, and an ink jet penetrating layer penetrating into the semitransparent green body. According to a preparation method, the ink dyeing assistant agent is added into the semitransparent green body, and ink jet penetrating technology is adopted, so that penetration of patterns into the semitransparent green body is realized, polishing is carried out directly after sintering, green body surface particle flatness is excellent, stain resistance is excellent, pattern wear resistance is excellent, and requirements on highlight products are satisfied, adding of a transparent glaze layer onto the surface of the green body is not necessary, cost is reduced, a problem that bonding of the glaze layer with the green body is poor is solved, production deformation cracking is avoided, the preparation method of the green body is simple, adding of non-transparent preform body is unnecessary, and in addition, the semitransparent green body contains the ink dyeing assistant agent, so that the color of the patterns used for decoration is bright, sharpness is high, and decoration requirements can be satisfied preferably.

The invention provides a digital household network multimedia sharing system and a sharing method thereof. The system comprises an intelligent household gateway and a terminal device, wherein the terminal device carries out video coding on a video by using a scalable video coding method to generate a video code stream block with time, space and quality-scalable characteristics and also generate avideo trajectory file; and the terminal device can also set transmission priority of the generated video code stream blocks, and adjust the transmission code rate of the multimedia information streams in a self-adapting mode according to the network conditions. In the sharing method, when the network available bandwidth is reduced, a user can watch smooth video at the client, and the video smoothness can be kept although the video resolution can decrease; and when the network available bandwidth is increased, the client can gradually enhance the video resolution on the premise of keeping the video smoothness. The system is suitable for bandwidth-limited digital household networks, and also suitable for intercommunication among different terminals in isomerous networks.