111results about How to "Reduce computational intensity" patented technology

Single-camera image processing methods are disclosed for 3D navigation within ordinary moving video. Along with color and brightness, XYZ coordinates can be defined for every pixel. The resulting geometric models can be used to obtain measurements from digital images, as an alternative to on-site surveying and equipment such as laser range-finders. Motion parallax is used to separate foreground objects from the background. This provides a convenient method for placing video elements within different backgrounds, for product placement, and for merging video elements with computer-aided design (CAD) models and point clouds from other sources. If home users can save video fly-throughs or specific 3D elements from video, this method provides an opportunity for proactive, branded media sharing. When this image processing is used with a videoconferencing camera, the user's movements can automatically control the viewpoint, creating 3D hologram effects on ordinary televisions and computer screens.

A method that facilitates identification of features in a scene enables enhanced detail to be displayed. One embodiment incorporates a multi-grid Gibbs-based algorithm to partition sets of endmembers of an image into smaller sets upon which spatial consistency is imposed. At each site within an imaged scene, not necessarily a site entirely within one of the small sets, the parameters of a linear mixture model are estimated based on the small set of endmembers in the partition associated with that site. An, enhanced spectral mixing process (SMP) is then computed. One embodiment employs a simulated annealing method of partitioning hyperspectral imagery, initialized by a supervised classification method to provide spatially smooth class labeling for terrain mapping applications. One estimate of the model is a Gibbs distribution defined over a symmetric spatial neighborhood system that is based on an energy function characterizing spectral disparities in both Euclidean distance and spectral angle.

The invention discloses a generation plan optimizing method in an intermittent energy and conventional energy coordinated dispatching mode, belonging to the technical field of power system dispatching automation. To minimize the generation cost of the system, the coordinated dispatching of an intermittent energy unit and a conventional energy unit is comprehensively considered, and various constraint conditions are taken into consideration to optimize the generation plan of a computing group, thereby ensuring the safe access of intermittent energy such as wind power and the like, and being favorable for improving the intelligence level and decision making ability of the generation dispatching after the access of the intermittent energy. Meanwhile, the method has the characteristics of low computing strength and strong adaptability, and is more suitable for the popularization and application of the dispatching mechanisms with relatively high wind power access power in our country.

The invention discloses a day-ahead optimal scheduling method for a wind-solar storage integrated power generation system. The method comprises the following steps: acquiring various optimization data and determining the optimization space of the wind-solar storage integrated power generation system; building an optimization model taking the maximum total active power as the target according to the grid model of a practical power grid; adding the punishment quantity of the total active power output curve variation relationship to the optimization target to obtain the optimal scheduling model putting smooth power generation curve into consideration; linearizing the nonlinear factors in the model, obtaining the active power generation curve of the wind-solar storage integrated power generation system through solving by the dual simplex method, submitting the active power generation curve to a superior scheduling center; and acquiring the charge-discharge plan of an energy storage device and issuing the plan to subsystems for execution. By adopting the method provided by the invention, the power resource optimal configuration capability is greatly improved.

The invention discloses a method for optimizing a power generation plan in a mode of tracing scheduling of an annual electric quantity progress. The method comprises the following steps of: firstly, calculating a currently-expected power-output plan of a machine set by taking annual progress control as a target; and secondly, optimizing and calculating the power generation plan of the machine set by taking a minimum deviation of the expected power-output plan as the target and considering all kinds of constraint conditions. A reasonable scheduling plan is made by two-stage decision links of expected plan making and optimization of a safety constraint power generation plan, the effective synchronous execution of a contract electric quantity is guaranteed, safe and fair united optimization is realized, and the intelligent level and decision making capacity of power generation scheduling can be improved conveniently. Meanwhile, the method is characterized by low calculation strength and strong adaptability and is more suitable for promotion and application in scheduling institutions at all levels in China.

The invention discloses a visual tracking method and a visual tracking system under a moving background. The visual tracking method comprises the following steps: reading a first frame of a video and labelling a target and a tracking area; circularly and densely acquiring the labelled target and an image of the tracking area, extracting a feature; taking a context area Xi around the target as a basic training sample, adding upper and lower frame constraints, and obtaining a learning classifier increment coefficient a; circularly moving a detection area z in the next frame to obtain a candidate block, substituting into a classifier to achieve that f(z)=(K<z>)<T>a and a target position that (xi, yi)=arg max f(z); returning to the step B, taking a context where the target center (xi, yi) is located as the basic training sample in the step C, obtaining the classifier increment coefficient a, updating a model, and continuing to update the next frame. The visual tracking system comprises a target initializing module, an image feature extracting module, a classifier initial training module, a rapid target detecting module, and a classifier training module. The tracked target can be accurately tracked when the target rapidly moves and the scale changes.

The invention belongs to the technical field of electric power system dispatching automation and relates to a water, fire and light combined optimization power generation scheduling optimization method considering security constraints. According to the water, fire and light combined optimization power generation scheduling optimization method, the objective of the method is to realize minimum power generation cost of a system; comprehensive considerations are given to coordinated scheduling of hydroelectric, thermal power and photovoltaic power generator sets; all kinds of constraint conditions are considered, such that optimal computation is performed power generation scheduling of the generator sets; safe access of new energy such as photovoltaic power generation power can be ensured; the improvement of intelligent level and decision making ability of power generation scheduling after the access of the new energy can be facilitated; and through interactive iteration solution of two sub-problems of optimization calculation and safety correction, the power generation scheduling of the hydroelectric, thermal power and photovoltaic power generator sets, which satisfy a requirement for network safety, can be obtained, and therefore, the performability of the power generation scheduling can be ensured. The water, fire and light combined optimization power generation scheduling optimization method considering security constraints of the invention is advantageous in low calculation strength and strong adaptability, and is more suitable for being popularized and applied to scheduling mechanisms of which photovoltaic power generation power access power is larger in China.

The invention provides an image processing method and system wherein an image is conceptually textured onto the surface of a three dimensional shape via a projection thereonto. The shape and / or the image position are then moved relative to each other, preferably by a rotation about one or more axes of the shape, and a second projection taken of the textured surface back to the image position to obtain a second, processed image. The view displayed within the processed image will be seen to have undergone an aspect ratio change as a result of the processing. The invention is of particular use in simulating the small movements of humans when speaking, and in particular of processing viseme images to simulate such small movements when displayed as a sequence.

The invention relates to a multiple modality medical image registration method based on mutual information sensitive range which mainly comprises, extracting mutual information sensitive area of the image information to be registered, then carrying out the registration of mutual information sensitive area through mutual information maximization, the invention can realize rapid and robust multiple modality medical image registration, and is especially suitable for multiple modality head image registration.

The invention discloses an extinction method of voice reverberation based on Wiener filtering, belonging to the technical field of voice signal processing. The method of the invention includes the four steps of input processing, reverberation analysis, reverberation processing and output processing, wherein, the input processing is to carry out sampling, endpoint detection and framing to a voice signal, the reverberation analysis is to carry out a first deconvolution operation to an onset voice and a reverberation signal thereof, so as to obtain a room impact response message of reverberation environment; the reverberation processing is to carry out filtering to the reverberation signal based on the room impact response message, namely, a second deconvolution operation, so as to obtain a dereverberation signal; the output processing is to carry out voice reconstruction, digital-to-analog conversion and signal transmission to the dereverberation signal, as well as record a dereverberation evaluation index. The method of the invention has good dereverberation effect, lower computation intensity and better timeliness.

The invention discloses a method for grid and province two-stage real-time generation schedule coordinative optimization under a generalized tie line mode. The method is characterized by comprising the following steps that firstly, province scheduling generalized tie line plans are obtained through calculation; secondly, a grid scheduling department issues all the province scheduling generalized tie line plans to corresponding province scheduling departments, and the grid scheduling department obtains a generalized tie line plan of each grid scheduling side directly under the province scheduling through calculation; thirdly, sensitivity information is calculated; fourthly, all kinds of information are read; fifthly, the generalized tie line soft constraint of the corresponding province is added, soft constraint cost is added to a conventional optimization object at the same time, then a province-stage power grid mathematic model is formed, the generalized tie line soft constraint of each grid scheduling side directly under the province scheduling is added, soft constraint cost is added to the conventional optimization target at the same time, then a first area power grid mathematic model is formed, the whole-grid grid scheduling side generalized tie line constraint is added on the basis of the first mathematic model, and a second area power grid mathematic model is formed; sixthly, optimization calculation is started. The method for grid and province two-stage real-time generation schedule coordinative optimization under the generalized tie line mode has the advantages that calculation intensity is low and adaptability is high and is suitable for popularization and application in China scheduling mechanisms of all scales.

The invention relates to a positioning method and a positioning system of a satellite navigation system and a ground receiving system. The positioning method comprises steps that the ground receiving system is used to acquire a carrier double-difference observation value and a pseudo range double-difference observation value of a satellite carrier signal, and a double-difference observation value model is established according to the carrier double-difference observation value and the pseudo range double-range observation value, and float solution of double-difference integer ambiguity and a coordinated factor matrix thereof are acquired; the integer transformation of the float solution and the coordinated factor matrix is carried out, and according to the transformed coordinated factor matrix, the integer least square search of the transformed float solution is carried out to acquire the least square integer solution of the float solution; the integer inverse transformation of the least square integer solution is carried out to acquire the integer solution of the double-difference integer ambiguity; according to the integer solution of the double-difference integer ambiguity, the mobile station of the ground receiving system is located.

The invention relates to a method of voice data actuation image. The method is used to use real time voice data to inspire image. Based on one side, the method includes identifying the top face and the lower face (step 705); the lower face can be inspired based on voice data simplified as vowel aggregation (step 710); the top face and the lower face can be shaked by coordinate transformation model (step 715); the top face and the lower face can be rotated by image coil model (step 720).

A parallel-beam optical tomography system (4) for imaging an object of interest (1) includes a parallel ray beam radiation source (35) that illuminates the object of interest (1) with a plurality of parallel radiation beams (36). After passing through the object of interest (1) the pattern of transmitted or emitted radiation intensities is magnified by a post specimen optical element or elements. An object containing tube (2) is located within an outer tube (32), wherein the object of interest (1) is held within or flows through the object containing tube (2). A motor (34) may be coupled to rotate and / or translate the object containing tube (2) to present differing views of the object of interest (1). One or more detector arrays are located to receive the emerging radiation (68) from the post specimen magnifying optic. Two- or three-dimensional images may be reconstructed from the magnified parallel projection data.

The invention provides an image processing method and system wherein an image is conceptually textured onto the surface of a three dimensional shape via a projection thereonto. The shape and / or the image position are then moved relative to each other, preferably by a rotation about one or more axes of the shape, and a second projection taken of the textured surface back to the image position to obtain a second, processed image. The view displayed within the processed image will be seen to have undergone an aspect ratio change as a result of the processing. The invention is of particular use in simulating the small movements of humans when speaking, and in particular of processing viseme images to simulate such small movements when displayed as a sequence.

The invention discloses a wind power compatibility network safety analysis method for the coordinated dispatching of wind power and conventional energy sources. The method aims to maximize system compatibility, and is implemented based on day-ahead power generation planning input and output data, the predicted power of wind power and a wind power fluctuation confidence interval are read, various kinds of constraint conditions comprising all day-ahead planning constraint conditions of a wind generation set and a conventional energy source machine sets are comprehensively taken into account to include a wind power compatibility analysis feasible region in day-ahead planning and ensure the guiding significance of a wind power compatibility analysis result for the day-ahead planning, and an output expression of the wind generation set is modified respectively to generate two optimal mathematical models to obtain a system wind power fluctuation curve capable of ensuring strict consistency with constrains of safety and the like of a power grid and give an alarm about wind power dispatching safety in advance. In addition, the method has the characteristics of low calculation intensity and high adaptability, and is more suitable for popularization and application in a dispatching organization with higher wind power access power in China.

The invention provides a method for detecting a yaw angle between a tractor and a trailer. The method comprises the following steps that, a detection board is arranged in front of a trailer, a plurality characteristic patterns are arranged in the front face of the detection board, and a camera is arranged in the rear face of the tractor and can be used for shooting at least one characteristic pattern on the detection board at an arbitrary yaw angle; under the situation of no yaw between the trailer and the tractor, and the camera is used for shooting the detection board to calculate an initialtransformation matrix; the characteristic patterns on the detection board are shot by the camera in a vehicle driving process; at least four characteristic points are extracted from each shot characteristic pattern; the current transformation matrix is calculated; and the yaw angle between the tractor and the trailer is calculated. The method is suitable for types of various trailers, including full trailers and semitrailers, has relatively low calculation strength, can realize real time, and can run under an extreme work condition (low light condition).

The invention discloses an intelligent television dock realization method. The method is characterized in that the method is applied to an intelligent television with a display screen. A dock comprises at least one application, and the corresponding application can be directly started through the application in the dock. The method comprises the following steps: when a starting command of the dock is obtained, obtaining a dock list, wherein the dock list is a preset list comprising the application in the dock; and displaying the dock and loading the application in the dock list according to the dock list. Only application information related to the dock is obtained through the dock list, screening of the application related to the dock from all applications of the intelligent television is unnecessary, the efficiency in displaying the application in the dock is higher, the calculating intensity is quite low, and the experience of a user in using the dock is better.

The invention discloses an efficient visual odometer based on inertial assistance. The efficient visual odometer comprises a visual sensor and an inertial sensor which are fixed on a carrier, a prediction value of navigation information of the carrier is calculated by using the value of the inertial sensor, the change amount of the navigation information of the carrier is calculated according to the prediction value and is judged, the predication value is output when the change mount meets a condition, and when the change amount does not meet the condition, the predication value is corrected by using the data of the visual sensor, and the corrected value is output. The efficient visual odometer based on inertial assistance has the following advantages: the motion of the carrier is predicated by the inertial sensor, so the computational intensity of the visual odometer is reduced, and the real-time performance of the above algorithm is improved.

Software method to identify which transistor gates float, and why, in complex, multi-transistor, electronic circuit designs. Transistor gates suspected of floating are analyzed by expanding backwards to build a logical tree representation of the previous predecessor circuit portions which drive that suspect gate. The method checks if the previous level of predecessor circuit node states earlier in the circuit show up more than once with different values, thus indicating by logical conflict that a particular floating suspect gate does not float. It then repeats this back-trace analysis for the next previous level of predecessor circuit portions, further seeking logical conflicts within the expanding logic tree. This is continued until either no predecessor circuit portion that can cause the suspect gate to float is found, or until a portion that does cause the suspect gate to float is found, in which case the suspect gate is identified as a probable floating gate.

The invention discloses a measurement method of subgrade earthwork filling and excavation balance based on tilt photography and BIM. The measurement method comprises the following steps of building abuilding information modeling (BIM) of a road and a bridge; sampling, testing and detecting soil, and obtaining relevant parameters; carrying out the modeling of a three-dimensional real scene model (DEM) in the range of a measurement area before filling and excavation, and processing data; combined with the BIM, using a filling and excavation calculation software system to set relevant parametersand automatically calculating the volume of filling and excavation by the system; after filling and excavation, carrying out the modeling of the DEM and data processing in the range of the measurement area; and combined with the DEM before excavation and filling and the DEM after excavation and filling, using the excavation and filling calculation software system to automatically calculate the volume of excavation and filling. According to the measurement method, actual earthwork filling and excavation balance can be measured more accurate, and thus the cost and accounting of the earthwork filling and excavation balance are more accurate.

Software method to identify which transistor gates float, and why, in complex, multi-transistor, electronic circuit designs. Transistor gates suspected of floating are analyzed by expanding backwards to build a logical tree representation of the previous predecessor circuit portions which drive that suspect gate. The method checks if the previous level of predecessor circuit node states earlier in the circuit show up more than once with different values, thus indicating by logical conflict that a particular floating suspect gate does not float. It then repeats this back-trace analysis for the next previous level of predecessor circuit portions, further seeking logical conflicts within the expanding logic tree. This is continued until either no predecessor circuit portion that can cause the suspect gate to float is found, or until a portion that does cause the suspect gate to float is found, in which case the suspect gate is identified as a probable floating gate.

An improved system for tuning a motor controller is disclosed. The controller gains are initially set based on the measured frequency response for the controlled system. A desired level of performance is defined by setting a desired phase margin and a desired gain margin to be observed in the frequency response. An improved method of determining the frequency response provides for a reduced computational intensity. The initial tuning routine uses the frequency response to set not only controller gains, but also settings for filters in the control module. Having obtained the desired level of performance from the initial tuning, the motor drive executes an adaptive tuning routine while controlling the motor. The adaptive tuning routine tracks changes in the operating performance and adjusts the filter settings or the controller gains to return operation to within the desired level of performance while the motor continues to operate.

The invention belongs to the technical field of dispatching automation of electric power systems and relates to an electricity generating schedule optimizing method considering a pump storage unit. Minimization of the electricity generating cost of the systems is taken as the target, coordinated dispatching of the pump storage unit and a conventional thermal electricity generating unit is comprehensively considered, various constraint conditions are considered for optimizing and calculating electricity generating schedules of the units, and the intelligence level and the decision-making ability of electricity generating dispatching after pumped storage is connected are improved helpfully. Meanwhile, the method has the advantages of being low in calculated strength and high in adaptability, and can be more suitable for being applied to and popularized in dispatching mechanisms, large in installed capacity, of the pump storage unit in our country.

The invention provides a speech data de-reverberation method, so as to reduce the spectrum of reverberation speech in a frequency domain to eliminate reverberation interference. The method comprises the steps that a after fast Fourier transforming is carried out on current speech frame data, complex power calculation is carried out on acquired spectrum coefficients; b a complex power spectrum is used to calculate a spectrum subtraction gain function, and the spectrum subtraction gain function is used to suppress reverberation components in the frequency domain; c: fast Fourier transforming is used to acquire the de-reverberated windowed speech frame data of the time domain, and amplitude compensation processing is carried out; and d a speech frame is output. According to the de-reverberation method and device for speech data, the spectrum of reverberation speech is reduced to eliminate speech reverberation components; and without the prior knowledge of environments and signals and application limits, the method and device have the advantages of low calculation intensity, easy implementing, and can be applied in real-time transmission occasions.

A method of transcoding from H.263 coded video frames to H.261 coded video frames, the method comprising for each INTER coded macro block (MB) of each frame, determining whether a component of the motion vector (MV) of the MB has a half pixel value, if yes, carrying out a MV search using the current H.263 decoded MB and a previous decoded frame to determine a new MV, the MV search being restricted to the vicinity of the H.263 coded MV, and coding the MB into an H.261 format using the new MV.

The invention relates to a wind power compatibility spinning reservation analysis method for the coordinated dispatching of wind power and conventional energy sources. The method aims to maximize system compatibility, and is implemented based on day-ahead power generation planning input and output data, the predicted power of wind power and a wind power fluctuation confidence interval are read, an output expression of a wind generation set is modified by utilizing a valley high-output and peak low-output typical output curve of the wind generation set for typical extreme conditions unfavorable for the absorption of a power grid for the wind power, various kinds of constraint conditions comprising all day-ahead planning constraint conditions of the wind generation set and a conventional energy source machine sets are comprehensively taken into account to include a wind power compatibility analysis feasible region in day-ahead planning and ensure the guiding significance of a wind power compatibility analysis result for the day-ahead planning, and a system wind power fluctuation curve capable of ensuring strict consistency with constrains of spinning reservation and the like is obtained to provide reference indexes for the stable running of wind power dispatching. The method has the characteristics of low calculation intensity and high adaptability, and is more suitable for popularization and application in a dispatching organization with higher wind power access power in China.

The invention belongs to the technical field of dispatching automation of an electric power system, and relates to a power generation schedule optimization method taking a hydroelectric generating set vibration area into account. The power generation schedule optimization method is based on current and real-time power generation schedule planned input and output data and includes the steps of reading the data of system load prediction, new energy prediction, the overhaul schedule, the section limit, set stop information, the set reference schedule and the information of sensitivity of a set to a monitoring element, taking various constraints including the system balance constraint, the set operating constraint, the network safety constraint, the set group constraint and the like into comprehensive consideration, maintaining the data of the output range of the hydroelectric generating set vibration area based on a common optimization model, introducing the constraints of the hydroelectric generating set vibration area and forming a mathematic model taking the constraints of the hydroelectric generating set vibration area into account. The optimization model makes a more reliable, effective and practical set output schedule, improves the execution efficiency of the set schedule, relieves the adjustment pressure of an AGC frequency modulation set and an AGC autonomous control set, improves the closed loop level of the current schedule, the real-time schedule and the AGC, and meets the increasingly lean large power grid safe operation requirement.

The invention provides a preprocessing apparatus for floating car data and a method thereof, wherein the apparatus carries out a preprocessing treatment on the traffic data based on floating cars. The apparatus comprises the following components: an input unit used for inputting traffic data of a plurality of data points; a filtering unit used for filtering temporary parking data point from the input traffic data; and an output unit used for outputting the remaining data points as the traffic data after preprocessing after the filtration of temporary parking data points by the filtering unit. According to the invention, the temporary parking data can be removed to reduce the calculating intensity of subsequent calculation in road condition calculation based on floating cars and raise the calculation speed and accuracy.

The invention discloses a method for designing a tire die on the basis of Excel and CAD (computer aided design) platforms. The method comprises the following four steps of generating a die standard drawing, creating an Excel platform data processing base, inputting data and creating a function relationship, and storing the data. The method can also be widely applied to design work for a plurality of dies, the defect that each die is required to be independently calculated and designed in the traditional die design is effectively avoided, and the working efficiency of die design is greatly improved; meanwhile, on one hand, the calculation intensity of related parameters in the traditional die design is reduced, the traditional requirement on drawing precision of the die is weakened, the workload of drawing is reduced, and the die designing efficiency is greatly improved, on the other hand, while the die is designed, making work, such as making a part production technical table can also be finished, the workload of designing traditional die machine processing working procedures and making a working procedure sheet is avoided, the workload of mechanical processing is reduced, and the working efficiency is improved.