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106 results about "Reference type" patented technology

In computer programming, data types can be divided into two categories: value types and reference types. A value of value type is the actual value. A value of reference type is a reference to another value.

Method and system for eliminating afterimage defect of static-state image display area

ActiveCN104318893AReduced grayscale attenuation varianceEliminate afterimageStatic indicating devicesReference typeGray level
The invention discloses a method and system for eliminating an afterimage defect of a static-state image display area, and is applied to a self-luminous display apparatus. The static-state image display area comprises at least two sub pixels of the same type yet with different grayscale values. The method comprises: obtaining the first grayscale value of a sub pixel of a reference type corresponding to the static-state image display area, wherein the reference type is any one from RGB types, and the first grayscale value is the maximum grayscale value in the grayscale values of all the sub pixels of the reference type; according to the first grayscale value, determining a second grayscale value, the second grayscale value being greater than or equal to the first grayscale value; and driving a reference sub pixel to work continuously for corresponding reference compensation time, and closing a sub pixel whose grayscale value is equal to the second grayscale value, wherein the reference sub pixel is any one sub pixel of the reference type, whose grayscale value is smaller than the second grayscale value, and the reference compensation time is the continuous work time of the reference sub pixel. By using the technical scheme provided by the embodiments of the invention, once an image of the self-luminous display apparatus generates the afterimage defect problem, the problem can be rapidly eliminated.
Owner:HISENSE VISUAL TECH CO LTD

Method for full reference type video quality assessment, apparatus for full reference type video quality assessment and video quality testing device for full reference type video quality assessment

ActiveCN103731664AImprove accuracyCoarse alignment works wellTelevision systemsTime distortionVideo sequence
The invention discloses a method for full reference type video quality assessments, an apparatus for full reference type video quality assessments and a video quality testing device for full reference type video quality assessments. The method includes that six different spatial parameters are extracted from each of video components of YUV of each ROI of referencing videos and testing videos, so that a pair of difference matrixes can be achieved, utilizing the pair of difference matrixes, time and brightness rough alignment is performed on the referencing videos and the testing videos, and the result of rough alignment can be achieved. According to the result of rough alignment, time, space, brightness and chromaticity precise alignment is performed on the referencing videos and the testing videos, and the result of precise alignment of the pair of video sequences can be achieved. According to the result of precise alignment of the pair of video sequences, the space distortion analysis and the time distortion analysis are conducted to the referencing videos and the testing videos, four space indexes and one time index can be achieved, and a quality assessment result can be achieved according to the four space indexes and the one time index. According to the method, the method for full reference type video quality assessments, the apparatus for full reference type video quality assessments and the video quality testing device for full reference type video quality assessments is capable of getting better result of rough alignment, and the accuracy of the video quality assessment results can be improved.
Owner:MIGU CO LTD

Wide domain all-state electromagnetic environmental monitoring system and method based on multi-parameter collaborative monitoring

InactiveCN106840258APower frequency magnetic field real-time monitoringReal-time monitoring of power frequency magnetic fieldMeasurement devicesElectric field sensorCorrelation analysis
The invention discloses a wide domain all-state electromagnetic environment monitoring system and method based on the multi-parameter collaborative monitoring. The system comprises a multi-parameter detection unit and a monitoring center, the detected electromagnetic environment data are sent to the monitoring center by the multi-parameter detection unit, the multi-parameter detection unit comprises a three dimensional ground reference type electric field sensor probe, a three dimensional magnetic field sensor, a digital type temperature humidity integrated sensor, a digital type pressure sensor and an electret capacitor microphone. The electromagnetic environment monitoring system achieves the integrated monitoring of the power frequency electric field, the power frequency magnetic field, the audible noise, the environmental temperature, the environmental humidity, the air pressure and other parameters, and provides data references for the correlation analysis and design verification of the electromagnetic environment information influence factors; and a full-day 24-hour continuous monitoring is conducted through the research monitoring device continuous power supply assurance unit.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +2

Lightweight design method for large-sized die-casting machine tail boards

The invention discloses a lightweight design method for large-size die-casting machine tail boards. The lightweight design method includes building three-dimensional models through computer-aided cartography (CAC), building a virtual prototype (VPT) through multibody dynamic simulation software to perform simulation and to draw curves of acting force, subjecting existing tail boards, in reference types, of die clamping mechanisms to numerical simulation of static performance and dynamic performance through computer aided engineering (CAE), calculating to obtain the stress, the rigidity and the modal frequency threshold, defining the design space and the non-design space of the tail boards, searching the optimum load transmission path meeting requirements of critical threshold and large-sized tail board lightweight structure meeting requirements of processing technique, and finally building lightweight models by digitizing means, and performing analysis verification so as to realize the lightweight design on the large-sized die-casting machine tail boards. By comprehensive application of multiple digitizing design techniques and variable-density method based topological optimization design techniques, work efficiency of design staff can be improved, weight of the large-sized die-casting machine tail boards can be reduced, and processing feasibility is guaranteed.
Owner:INST OF INTELLIGENT MFG GUANGDONG ACAD OF SCI

Synchronization control method used for space optical remote sensor servo system

ActiveCN104932251AImprove synchronous motion errorSatisfy the requirement that the trajectory remains unchangedAdaptive controlReference typeClosed loop
The invention provides a synchronization control method used for a space optical remote sensor servo system. Position servo commands of a main shaft scanning system and a slave shaft scanning system are designed by utilizing a preset index requirement; a main shaft tracking error controller is designed so that rotating scanning movement control performance of the main shaft system is enabled to meet a preset scanning linearity requirement; a slave shaft tracking error controller is designed so that the closed-loop characteristics of the slave shaft tracking error controller are enabled to be identical to those of the main shaft tracking error controller; and a synchronization error controller is designed so that the stable 0 tracking command of the two-shaft servo system is enabled to be stable, theta<z><cmd>xk<2> is added at the output end of the synchronization error controller and output of the main shaft tracking error controller is subtracted so that a synchronization control closed loop is formed, and synchronization control of the space optical remote sensor two-shaft servo system is completed. Compared with master command reference type synchronization and master-slave reference type synchronization, two-shaft synchronization movement precision is greatly enhanced by the method without influencing movement tracks of a main rotating system.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH
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