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290results about How to "Increase constraints" patented technology

3D real-scene copying device having high cost performance

ActiveCN103971404AIncrease silhouetteConstraints for adding silhouettesImage analysis3D modellingVision sensorVisual perception
A 3D real-scene copying device having high cost performance comprises a monocular multi-view stereoscopic vision sensor used for shooting a reconstructed object and a microprocessor used for performing image process and 3D real-scene copying on the reconstructed object; the monocular multi-vies stereoscopic vision sensor comprises a hopper-shaped mirror cavity, a shell, an objective table, a high-definition camera and a semi-spherical LED light source; the microprocessor comprises an image reading module, an image processing module, an image enhancing module, a three-dimensional point cloud obtaining module and a point cloud reconstructing module, the image reading module is used for reading an image, comprising five views, of the reconstructed object, the image processing module is used for segmenting the foreground of the reconstructed object from the image comprising the five views and performing rotation transformation and distortion correction on the image comprising the five views by means of a standardization result of the sensor, the image enhancing module is used for homogenizing the image brightness, in each view, of the reconstructed object, the three-dimensional point cloud obtaining module is used for extracting real three-dimensional coordinate values and color values of points on the surface of the reconstructed object, and the point cloud reconstructing module is used for performing three-dimensional reconstruction on point cloud data.
Owner:ZHEJIANG UNIV OF TECH

Deformation-controllable frame filling wall and construction method thereof

The invention discloses a deformation-controllable frame filling wall which is mainly composed of a frame 1, a filling wall 2, deformation control parts 3, horizontal tie bars 4, restraint columns 5 and horizontal connection beams 12. The deformation-controllable frame filling wall is characterized in that the frame 1 is composed of a frame upper beam 6, a frame lower beam 7, a frame left column 8 and a frame right column 9, the filling wall 2 is a brickwork filling wall which is built by bricks (clay bricks and hollow bricks) or concrete building blocks, the deformation control parts 3 are arranged at positions where four corners of the filling wall contact with joints of the frame, the filling wall 2 is connected with the frame left column 8 and the frame left column 9 through a flexible material 10, and connected with the frame upper beam 6 and the frame lower beam 7 through an elastic connection material 15, the restraint columns 5 are arranged at positions where the filling wall 2 is connected with the flexible material 10, and the horizontal tie bars 4 which are arranged in the height direction of the filling wall are connected with the restraint columns. When the height of the filling wall is large, horizontal tie beams 12 can be arranged in the filling wall, and two ends of the horizontal tie beams 12 are connected with the restraint columns 5.
Owner:INST OF ENG MECHANICS CHINA EARTHQUAKE ADMINISTRATION

Improved anti-crack construction technique for aerated concrete block wall

The invention discloses an improved anti-crack construction technique for an aerated concrete block wall. The technological process of the improved anti-crack construction method comprises the steps of construction preparation; drawing of a masonry block arrangement map according to the spatial size of a filler wall; leveling of frame columns or a shear wall, snapping of axes, and scribing and brick layer lines; arrangement of tie bars; line hanging, mortar laying and construction; construction of skew bricks when construction is conducted to the position 130 mm away from the beam bottom; pipeline laying; repairing treatment of the wall; spraying of a special interface treating agent through a machine; nailing of a steel wire gauze; alignment and bar embedding; plastering of the bottom layer; plastering of the surface layer; and water spraying for curing. The improved anti-crack construction technique for the aerated concrete block wall has the characteristics that construction operation is easy and convenient, comprehensive cost is reduced, the construction period is shortened, the anti-crack requirement of the wall is met, and accordingly the quality of the wall is improved; and the improved anti-crack construction technique for the aerated concrete block wall has extremely good application prospects.
Owner:轩重建筑节能科技(上海)有限公司

Suction type foundation used on sea-bottom

The invention discloses a submarine suction foundation which comprises a barrel shape body. The lateral of the upper end of the barrel shape body is provided with a circular stable disk which is formed into an integrated 'T'-shaped structure together with the barrel shape body. The invention arranges the circular stable disk at the barrel shape body of the suction foundation and presses the stable disk directly onto a soil body surface surrounding the foundation when anchoring the foundation so as to ensure part of the soil body to form an integration more closely with the foundation and to connectively move together with the foundation when the foundation is movably loaded by a horizontal ice force and so on. Therefore, the problems that formerly, as the soil surrounding the barrel foundation gets closer to the barrel foundation, the soil receives bigger disturbance and the softening degree and the liquefaction degree become more and more serious are eliminated; the disturbance brought by the barrel foundation can be more evenly and extensively distributed into the soil surrounding the barrel foundation; the softening degree of the soil body is reduced; the liquefaction of soil mass is eliminated; and thereby the stability of the foundation and the reliability of the anchorage in the submarine soil are guaranteed.
Owner:INST OF MECHANICS - CHINESE ACAD OF SCI

Three-dimensional human face animations editing and synthesis a based on operation transmission and Isomap analysis

The invention discloses a method for compiling and compounding 3D face animation based on sport communication and Isomap analysis. Firstly, the method requires a user to choose a control point in the 3D face model and designate the restriction conditions of expression action in a two-dimension plane; the system trains a prior probability model according to the data of face animation, spreads less user restriction to the other parts of face grids so as to generate completed lively face expression; then modeling to 3D face animation knowledge is carried out by Isomap learning algorithm, key frames designated by the user are combined, smooth geodesic on the higher order surfaces is fitted, and new face animation serial is generated automatically. The method of the invention can lead the compiling of face expression to be carried out only in the two-dimension projection space and the compiling of face expression is easier; owing to the restriction of the prior probability model, 3D face expression satisfying the principle of anthropotomy can be obtained, the new face animation serial can be obtained by combining the key frames designated by the user, and the production of face expression animation is simplified.
Owner:ZHEJIANG UNIV

Transient electromagnetic inversion method based on transverse smooth constraint

The invention discloses a transient electromagnetic inversion method based on transverse smooth constraint and is applied to the earth exploration field. The method comprises steps that S1, a primary pulse magnetic field is emitted to the underground, a secondary magnetic field excited by induction eddy current generated by an underground conductive geologic body under the excitation action of the primary pulse magnetic field is measured, secondary magnetic field data acquired through measurement is taken as observation data; S2, an initial inversion model is constructed; S3, a mismatching functional between the observation data and forward theory data is constructed; S4, a vertical constraint functional for constraining electric parameter change of the conductive geologic body is constructed; S5, a transverse constraint functional for constraining electric parameter change of the conductive geologic body among measurement points is constructed; S6, an inversion target function is constructed on the basis of the mismatching functional, the vertical constraint functional and the transverse constraint functional; and S7, the initial inversion model is taken as initial conditions, an electric parameter corresponding to a smallest inversion target function value is solved, and the underground structure is reconstructed according to the electric parameter. The method is advantaged in that the underground structure acquired on the basis of inversion imaging results is more accurate and reliable.
Owner:INST OF ELECTRONICS CHINESE ACAD OF SCI

Piezoresistive acceleration sensor with full-bridge micro-beam structure

ActiveCN103235155AStrain amplificationIncreased Vibration ConstraintsAcceleration measurement using interia forcesCantilevered beamElectrical resistance and conductance
The invention discloses a piezoresistive acceleration sensor with a full-bridge micro-beam structure. The piezoresistive acceleration sensor with the full-bridge micro-beam structure comprises a framework, a cantilever beam, micro-beams and a mass block, wherein the cantilever beam is arranged on the axis of symmetry of the mass block; and four micro-beams are symmetrically distributed on the edge of the mass block by taking an axis on which the cantilever beam is positioned as the axis. The structure is provided with the four micro-beams, piezoresistive sensitive resistors are arranged on the four micro-beams, and the four piezoresistive sensitive resistors form a Wheatstone full-bridge circuit; on one hand, the stress of the cantilever beam is amplified to improve the sensitivity; on the other hand, the four piezoresistive sensitive resistors are all arranged in a chip, influence on the circuit due to resistance value drifting caused by the measurement environment temperature variation can be mutually offset in the full-bridge circuit, and therefore, the temperature stability is improved; and restriction on the mass block vibration is increased by the four micro-beams to improve the first-order resonant frequency.
Owner:XIAMEN NIELL ELECTRONICS
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