Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

57results about How to "Good uniqueness" patented technology

Obstacle avoidance robot based on visual feature binding and reinforcement learning theory

The invention discloses an obstacle avoidance robot based on visual feature binding and a reinforcement learning theory. Visual feature binding and the reinforcement learning theory are utilized, and depth image information is integrated to learn priori knowledge of complex environment on the basis of a convolutional network and image matching technology; on the basis of a feature binding mechanism, a result is fed back to obstacle avoidance of the obstacle avoidance robot to make a decision intelligently, quickly, efficiently and accurately; an MNIST handwriting dataset is adopted, different control signal meanings are given to numbers 0-9 respectively, a Kinect sensor is utilized to collect RGB images with moving distance containing handwriting pictures in the complex environment, and an image matrix is created and output through gray-scale processing; image matching is performed, pictures after being matched are subjected to binarization processing and substituted into a well-trained image recognition model based on a convolutional neutral network, numbers in front of the sensor are judged finally, and corresponding control signals are transmitted to a robot control module through a host to realize intelligent obstacle avoidance.
Owner:CHINA UNIV OF MINING & TECH +2

Target tracking method with self-restoration capacity based on multi-stage detector

A target tracking method with self-restoration capacity based on a multi-stage detector includes the steps of selecting a plurality of detectors of different types to be connected in series in combination with the concept of cascading Adaboost multi-stage weak classifiers into a strong classifier, selecting a significance detector for first-stage detection, selecting a classifier assembly detecting module for second-stage detection, substituting the classifier assembly detecting module into a random tree to calculate the posterior probability of a positive sample in a probable area detected byfirst-stage detection, selecting a related filtering detector for third-stage detection, calculating the relevance between a sample with the posterior probability larger than a certain threshold andthe positive sample initialized or obtained in the last frame so as to reduce accumulated errors caused by long-term tracking, determining the position with the maximum relevance as the target area inthe current frame through the multi-stage detector, sampling the determined position, supplementing the positive and negative sample number of concentrated removed samples to ensure the reliability and number consistency of the samples, activating a redetection mechanism if the maximum value of the relevance is larger than a certain threshold, and detecting the area near the position again to search for a target.
Owner:BEIHANG UNIV

System and method for measuring three-dimensional volume scattering function of microparticle in water

The invention discloses a system for measuring a three-dimensional volume scattering function of a microparticles in water. The system comprises a parabolic spherical reflector, a sample pool, a telescope group, a photoelectric detector and a computing processing unit, wherein the sample pool is arranged in a reflector cavity of the parabolic spherical reflector, the center position of the sample pool is located in a parabolic spherical focal point of the reflector cavity of the parabolic spherical reflector, incident light is converged at the reflector cavity focal point position, incident to a parabolic spherical surface after being subjected to particle scattering in the sample pool, transformed into parallel scattered light, received by the photoelectric detector after passing through the telescope group, and transmitted to the computing processing unit for processing, and thus, the three-dimensional volume scattering function of the microparticle can be obtained. The invention further discloses a method for measurement by utilizing the system. According to the invention, the problem of detection deviation generated when a plurality of detectors are used for detecting the volume scattering functions of different angles is avoided, the acquired image is good in uniqueness and high in contrast ratio and can be completely fixed in a work process, and the measuring stability is good and the measuring speed is high.
Owner:HUAZHONG UNIV OF SCI & TECH

Titanium dioxide/boron nitride composite material and preparation method and application thereof

The invention relates to a titanium dioxide/boron nitride composite material and a preparation method and application thereof. The preparation method of the titanium dioxide/boron nitride composite material comprises the following steps that boric acid, a carbon source, nitric acid and urea are mixed to be even by using water, mixed liquid is obtained, the mixed liquid is heated to be 300-500 DEGC and subjected to heat preservation for 15-30 minutes, a precursor is obtained, the precursor is subjected to heat preservation for 2-5 hours under a condition of ammonia gas and at the temperature of 700-1000 DEG C, and boron nitride is prepared; and a titanium source and boron nitride prepared in the step (1) are mixed to be even by using an alcohol solvent, then a mixture is obtained, the mixture is subjected to heat preservation for 12-24 hours at the temperature of 150-180 DEG C, and the titanium dioxide/boron nitride composite material is prepared. The prepared boron nitride has a larger specific surface area and a smaller band gap. The prepared titanium dioxide/boron nitride composite material has good adsorption and photocatalytic effects on Rhodamine B, and can rapidly and completely remove Rhodamine B dyestuff.
Owner:UNIV OF SCI & TECH BEIJING

License plate character recognition method based on SIFT operator and chaos genetic algorithm

The invention belongs to a license plate recognition system, and discloses a license plate character recognition method based on an SIFT operator and a chaos genetic algorithm. The method is characterized in that Chinese characters and alphanumeric characters of a license plate are separately recognized, that is, the Chinese characters are recognized by using an SIFT operator feature extraction and template matching method; and the alphanumeric characters are recognized by using a thirteen-point feature extraction method and a support vector machine, and the problem of low overall recognition rate of the license plate characters due to that most of the existing license plate recognition systems adopt a unified character feature extraction and recognition method for recognition is solved. Meanwhile, in order to improve the classification capability of the support vector machine, the method adopts the chaos genetic algorithm to optimize radial basis function parameters and penalty factors, license plate images of different backgrounds are collected and tested and simulated on matlab software, the overall recognition rate of the characters can reach more than 99%, and the chaos genetic algorithm has a higher character recognition rate and a faster convergence rate than a traditional genetic algorithm.
Owner:NORTHEAST DIANLI UNIVERSITY

Selenium-enriched compound microbial organic fertilizer with humic acid coating film and preparation method thereof

The invention discloses a selenium-enriched compound microbial organic fertilizer with a humic acid coating film and a preparation method thereof. The selenium-enriched compound microbial organic fertilizer is prepared by taking fowl manure and furfural residues as main raw materials which are used as carriers of a selenium element and various types of microbial strains, and taking active carbon fine powder, amino acid chelated selenium, a special bacterium agent for composting the organic fertilizer, a JT compound microbial bacterium agent and an EM compound microbial bacterium agent as auxiliary raw materials, and spraying a coating film on product particles by adopting a humic acid based film coating agent. The preparation method comprises the following steps: preparing the main raw materials, preparing the auxiliary raw materials, preparing various types of compound microbial bacterium agents, carrying out three times of biologic fermentation processes, and carrying out subsequent processing. The selenium-enriched organic fertilizer prepared by the invention can be widely used for producing selenium-enriched agricultural products, and the content of the selenium element in the agricultural products is effectively increased; recycling and harmless comprehensive utilization of excrement of large-scale bred livestock and poultry and biomass wastes of a furfural industry is realized, so that the environmental pollution is reduced, and the breeding cost and the production cost of the furfural industry are reduced; and the social and economic benefits of enterprises are improved, and the selenium-enriched compound microbial organic fertilizer has important demonstration and popularization values.
Owner:NINGXIA SHUNBAO MODERN AGRI CO LTD

Complex of helical chain polysaccharide derivative co-loaded single-walled carbon nanotube and nucleic acid as well as preparation method and application of complex

The invention belongs to the technical field of biomedical materials, and discloses a complex of a helical chain polysaccharide derivative co-loaded single-walled carbon nanotube and nucleic acid as well as a preparation method and application of the complex. The preparation method of the complex comprises the following steps: enabling helical chain polysaccharide amylase to react with N, N'-carbonyldimidazole and ethylenediamine in dimethyl sulfoxide to obtain a water-soluble amylase derivative containing primary amino groups, then adding a single-walled carbon nanotube into an aqueous solution, and performing ultrasonic treatment, centrifugation, filtration and freeze drying to obtain an amylase derivative-single-walled carbon nanotube inclusion compound; and then, scattering the inclusion compound into double distilled water, adding nucleic acid, fully vibrating, and then performing incubation to obtain a complex of the helical chain polysaccharide derivative co-loaded single-walled carbon nanotube and nucleic acid. The complex disclosed by the invention combines photo-thermal conversion effects of the inclusion compound and special functions of nucleic acid, and can be used for preparing medicines for photo-thermal and gene combined treatment.
Owner:GUANGZHOU REFORGENE MEDICINE CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products