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56 results about "Separate analysis" patented technology

Method and device for evaluating visual positioning accuracy of circular target, storage medium and processing equipment

ActiveCN108596980AResolve separabilityAddressing Difficulties in Quantitative EvaluationImage analysisSystems designEllipse
The invention relates to a method and a device for evaluating visual positioning accuracy of a circular target, a storage medium and processing equipment. The method comprises the steps of: setting anoriginal state of the circular target relative to a camera; projecting a continuous circular curve of the circular target to an image plane to obtain an elliptic curve; performing grid discretizationon the elliptic curve according to image resolution, performing simulation superposition on imaging errors through a monte carlo method to generate a discrete pixel point set curve with random errors; performing arc section extraction, ellipse fitting and spacial circle pose recognition on the discrete pixel point set curve to obtain a deviation spacial pose state of the circular target; performing comparison to obtain an error amount between the deviation spacial pose state of the circular target and the original state of the circular target, and determining the positioning accuracy according to the error amount. The method of the invention solves the problem of difficult separate analysis and quantitative evaluation due to multiple error sources which are coupled in visual positioning of the circular target, and can provide important support for selection and utilization of characteristics of the circular target in design of a monocular vision measurement system.
Owner:中国人民解放军63920部队

Segmental detection method for multi-task resource conflict

The invention discloses a segmental detection method for a multi-task resource conflict. The method comprises the following steps of: establishing a set {M1} of time points of resource occupation of each task according the resource occupation time of each task; combining superposed time points in the {M1}, and sequencing into a set {M2} of the time points; and computing the resource occupation amount in each resource use time interval in {M2} to obtain data: the resource use amount in each time interval, a maximum resource use amount and an interval with the maximum use amount, a minimum resource use amount and an interval with the minimum use amount, and the presence of a resource conflict and a time interval in which the conflict exists. The method can be used for dynamically detecting the conflict situation of item resources, and can be used for rapidly and accurately positioning item resource conflicts, and prompting a manager by being specific to time intervals in which conflicts exist. The segmental detection method has the advantages that the algorithm complexity is low; comprehensive detection data in resource conflict intervals can be obtained; and separate analysis of each resource is realized, and synchronous analysis of a plurality of resources is realized while a parallel processing technology is supported.
Owner:北京神舟航天软件技术股份有限公司

Public building intelligent monitoring system

The invention discloses a public building intelligent monitoring system. The intelligent monitoring system comprises a monitoring front end, a monitoring center, basic intelligent analysis, intelligent face recognition and a security and protection system, the monitoring front end comprises a camera system and an audio system; the monitoring center comprises a central control center, a sub-controlroom and a storage device, and the monitoring center enables the control center, the sub-control room and the monitoring front end in the monitoring system to be in signal communication through a network architecture. The basic intelligent analysis comprises modeling backgrounds and foregrounds, separating analysis targets or persons from the backgrounds, extracting and tracking foreground targets, and performing intelligent behavior analysis and application in combination with business logics; wherein the intelligent face recognition comprises front-end face camera collection, intelligent face recognition and client presentation; the security and protection system comprises an intrusion alarm subsystem, a video monitoring subsystem and an entrance and exit subsystem which are mutually coordinated. The public building intelligent monitoring system has the effect of intelligently monitoring the public building.
Owner:北京市亚太安设备安装有限责任公司

Monitoring method and system for small aircrafts and floating objects

The invention discloses a monitoring method and a monitoring system for small aircrafts and floating objects. The monitoring method comprises the steps of: acquiring video image information photographed by all cameras in a monitoring region in real time; carrying out separate analysis and processing on the acquired video image information of each camera, and identifying all the small aircrafts and floating objects in the video image information; carrying out three-dimensional space reconstruction on the video image information having the small aircrafts and the floating objects, and positioning three-dimensional coordinates of all the small aircrafts and floating objects, and recording moving trajectories of all the small aircrafts and floating objects; and analyzing the moving trajectory of one single small aircraft or floating object, predicting a future moving trajectory of the same, and sending alarm information when a predicted trajectory of one single small aircraft or floating object is about to pass through a control region. The monitoring method and the monitoring system can be used for monitoring all the small aircrafts and floating objects in the control airspace in a visual, omnidirectional and uninterrupted manner, ensure the safety of the control region, and have good application prospect.
Owner:ANHUI POLYTECHNIC UNIV

Method for analyzing and distinguishing sea surface excessive oil by ozone oxidization deriving liquid chromatogram coupling technique

The invention provides a method for analyzing and identifying the overflowing oil on the sea by using the ozone oxidation derivation liquid chromatographic coupling technology; the method adopts the pre-column derivatization technology, namely the ozone oxidation derivation process to lead the structural characteristic of an oil fingerprint unit to be obvious without being effected by weathering and biodegradation, and has identical unit information and high representation and high reliability; the liquid chromatography is characterized by high speed, high efficiency, high sensitivity, good repeatability and simple structure, etc.; then a differential refraction detector and a ultraviolet absorption detector are provided so as to obtain an oil fingerprint-chromatogram with detailed oil fingerprint unit information by separating analysis of the ozone oxidation derivation technology coupled with the liquid chromatographic technology; the analysis and identification for the types of the overflowing oil and the overflowing oil source can be carried out by comparing the oil fingerprint-chromatograms of the overflowing oil sample, the overflowing oil source and standard oil products.
Owner:OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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