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56results about How to "Reduce computational processing" patented technology

Automatic parking space locking method and system based on video license plate detection

The invention provides an automatic parking space locking method and system based on video license plate detection, and belongs to the technical field of automatic control. The system comprises a front-end device, control devices, parking space locks and a management device. According to the automatic parking space locking method, control ability of the control devices is reported, the front-end device distributes packing spaces for the control devices, and accordingly connection between the front-end device and the control devices is achieved; the front-end device collects video images of the parking spaces, recognizes parking space numbers and carries out periphery detection to judge whether vehicles come in or leave, and the segmented video images are sent to the control devices for license plate recognition; the control devices recognize license plates and compares the license plates with license plates of vehicles allowed to be parked, if the license plates are matched, the parking space locks are controlled to be unlocked, and accordingly automatic control of the parking space locks is achieved. By means of the method and system, automatic locking of the parking space locks is achieved on the basis of the video images, calculation amount in image reorganization and processing can be effectively reduced, and a system is stable and effective.
Owner:ZHEJIANG UNIVIEW TECH CO LTD

Video de-noising processing method and device

The embodiment of the present invention discloses a video de-noising processing method. The method comprises: obtaining the current frame image of the video; when there is an object frame image, performing pixel value difference calculation of the pixel point of the current frame image and the pixel point of the corresponding position in the object frame image, and obtaining the absolute value of the pixel value difference, wherein the object frame image is the frame image outputted after the last one image of the current frame image is subjected to de-noising processing; determining whether the absolute value is larger than a presetting threshold value or not; if it is determined that the absolute value is larger than a presetting threshold value, updating the pixel point of the corresponding position in the objet frame image to the pixel point in the current frame image; and when the current frame image completes the difference calculation of the presetting number of pixel points, outputting the updated object frame image. The present invention further discloses a video de-noising processing device. According to the invention, the technical problem is solved that the video de-noising algorithm cannot satisfy the requirements of low real-time video flow calculation amount and having no delay of a mobile terminal in the prior art.
Owner:GUANGZHOU BAIGUOYUAN NETWORK TECH

Integrated automated testing system based on subsystems

The invention relates to an integrated automated testing system based on subsystems, and is characterized in that a public support system is utilized to perform integration, so that the testing system is divided into the subsystems with different granularities; a communication technology is adopted to realize effective testing and data collection for a plurality of network types; the concept of system on module is adopted in the public support system, so that a central processing unit (CPU), a memory, a storage cell, Flash, an operating system, an IO (Input/Output) and a controlled unit are directly integrated on a hardware module, thus each hardware module constitutes one subsystem which is capable of performing independent operation; the subsystems are incorporated into a common bus by related interfaces, so that each other hardware module in the testing system can carry out interaction with the common bus to realize resource sharing; and among the subsystems, a distributed computing technology is adopted, a plurality of CPUs are cooperated, a plurality of tested objects are subjected to parallel processing, and data is subjected to centralized processing, thus forming the complete automated testing system. The automated testing system has the advantages of low power consumption, miniaturized volume, strong expansion capability and the like.
Owner:NEW SINGULARITY INT TECHN DEV

Keypoint descriptor generation by complex wavelet analysis

ActiveUS8712158B2Accurate and high quality object identificationGood effectThree-dimensional object recognitionRadiologyComputer software
The present invention relates to a method of generating a keypoint descriptor for identifying an object in an image or in a sequence of images, the keypoint descriptor being substantially invariant to a transformation of the object in the image. The method includes receiving object data representing an object for identification in an image; processing said object data to generate at least one basis function representing a feature having undergone at least one transformation or a transformation sequence across several consecutive frames, optionally using transformations that are out of the image plane to recognize objects from multiple views; modifying a prototype wavelet function based on said at least one basis function to generate a plurality of modified wavelet functions; comparing the plurality of modified wavelet functions with the at least one basis function; selecting a modified wavelet function of said plurality of modified wavelet functions based on the comparison of the plurality of modified wavelet functions with the at least one basis function; and processing an input image or input orientation field according to said selected modified wavelet function to generate the keypoint descriptor. The present invention further relates to a method of identifying an object in an image using a keypoint descriptor; and apparatus and computer software for implementing a method in accordance with the present invention.
Owner:ZEBRA TECH CORP

Personalized commodity recommendation method

The invention relates to a personalized commodity recommendation method. The method comprises the steps of receiving a commodity search instruction of a user; If the users are classified, calculatingmulti-dimensional average label information preferred by the users, wherein a recommendation model of the users calculates first multi-dimensional attribute information based on the multi-dimensionalaverage label information, calculates the distance between the first multi-dimensional attribute information and second multi-dimensional attribute information of each commodity in the commodity category, and pushes the commodities with the smaller distance to the users; Otherwise, calculating first multi-dimensional average attribute information based on the second multi-dimensional attribute information of the plurality of commodities, and determining a recommendation model suitable for the user based on the first multi-dimensional average attribute information and the recommendation model of each type of users. According to the recommendation method provided by the invention, firstly, users are clustered, and multi-dimensional commodity label information and commodity attribute information are utilized, so that the recommendation accuracy is high; Besides, when the user is a new user, a recommendation model of the new user is formed by utilizing an existing recommendation model through attention transfer learning, so that the cold start problem is solved.
Owner:HUAZHONG UNIV OF SCI & TECH +2

Parameter identification method of doubly-fed wind power generator

The invention discloses a parameter identification method of a doubly-fed wind power generator, and relates to the field of wind power generation. The parameter identification method comprises the steps of firstly, determining a to-be-identified parameter; secondly, continuously acquiring running data of a doubly-fed wind power generator model at interval, and building a to-be-identified samplingmatrix; thirdly, solving a rough identification vector according to a first solution formula; taking the rough identification vector as a to-be-identified vector of a (N+1)th item in response to sampling items of the running data less than or equal to M; fourthly, solving a fine identification vector according to a second solution formulae in response to the sampling item of the running data larger than M, and taking the fine identification vector as a to-be-identified vector of the (N+1) item; and sending the to-be-identified vector to a doubly-fed wind power generator controller. Previous data is eliminated, so that the calculation processing quantity becomes less; and meanwhile, since a parameter identification system is a gradual-changing system, the father from the current time node,the lower the data accuracy is, the data at the current moment is removed, and the system accuracy is effectively improved.
Owner:中达安股份有限公司

Exhibit attention analysis system and analysis method based on emotion recognition

The invention discloses an exhibit attention analysis system and analysis method based on emotion recognition, and the method comprises the steps: carrying out the preliminary recognition and delineation of a person when the person successively enters a preset range of a current exhibit, and carrying out the continuous tracking and recognition of the person; and judgment is continued in the tracking recognition process, and only when the face of the current person faces the target exhibit and the eye sight range of the person falls onto the target exhibit, the current person is judged to be aneffective target person. And finally, the human face emotion recognition unit performs real human face emotion recognition processing on the human face of the effective target person. In the processing process, the screening range is gradually reduced, the analysis and processing efficiency is remarkably improved, and compared with a traditional attention conclusion method obtained through analysis according to the number of people in a specific region of the booth, the judgment and recognition precision is higher, and the analyzed attention data of the exhibit is more real and reliable.
Owner:北京正和恒基滨水生态环境治理股份有限公司

Integrated automated testing system based on subsystems

The invention relates to an integrated automated testing system based on subsystems, and is characterized in that a public support system is utilized to perform integration, so that the testing system is divided into the subsystems with different granularities; a communication technology is adopted to realize effective testing and data collection for a plurality of network types; the concept of system on module is adopted in the public support system, so that a central processing unit (CPU), a memory, a storage cell, Flash, an operating system, an IO (Input / Output) and a controlled unit are directly integrated on a hardware module, thus each hardware module constitutes one subsystem which is capable of performing independent operation; the subsystems are incorporated into a common bus by related interfaces, so that each other hardware module in the testing system can carry out interaction with the common bus to realize resource sharing; and among the subsystems, a distributed computing technology is adopted, a plurality of CPUs are cooperated, a plurality of tested objects are subjected to parallel processing, and data is subjected to centralized processing, thus forming the complete automated testing system. The automated testing system has the advantages of low power consumption, miniaturized volume, strong expansion capability and the like.
Owner:NEW SINGULARITY INT TECHN DEV
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