141results about How to "Eliminate mismatch" patented technology

The invention discloses a method for acquiring a range image by stereo matching of multi-aperture photographing based on color segmentation. The method comprises the following steps of: (1) carrying out image correction on all input images; (2) carrying out the color segmentation on a reference image, and extracting an area with consistent color in the reference image; (3) respectively carrying out local window matching on the multiple input images to obtain multiple parallax images; (4) removing mismatched points which are generated during the matching by applying a bilateral matching strategy; (5) synthesizing the multiple parallax images into a parallax image, and filling parallax information of the mismatched points; (6) carrying out post-treatment optimization on the parallax image to obtain a dense parallax image; and (7) converting the parallax image into a range image according to the relationship between parallax and depth. By acquiring range information from multiple viewpoint images and utilizing image information provided by the multiple viewpoint images, the invention can not only solve the problem of mismatching brought by periodic repetitive textural features and shelter and the like in the images, but also can improve matching precision and obtain an accurate range image.

A carrier-free semiconductor package and a fabrication method thereof are provided. The fabrication method includes the steps of: providing a carrier having a plurality of electrical contacts formed thereon; mounting at least one chip on the carrier; electrically connecting the chip to the electrical contacts via a plurality of bonding wires; forming a coating layer on each of the electrical contacts to encapsulate a bonded end of each of the bonding wires on the electrical contacts; performing a molding process to form an encapsulant for encapsulating the chip, the bonding wires and the electrical contacts; and removing the carrier, such that bottom surfaces of the electrical contacts are exposed from the encapsulant. This obtains a semiconductor package not having a carrier, and the coating layers can enhance adhesion between the electrical contacts and the encapsulant.

The invention provides a microphone array voice enhancement device with a sound source direction tracking function and a method for the microphone array voice enhancement device. The microphone array voice enhancement device relates to voice signal processing. A microphone array, an adjustable parallel beam former group module, a fixed parameter FIR (Finite Impulse Response) filter module, a fixed parameter signal blocking module, an adaptive noise canceller module and a sound source direction update module are aranged in the devide. The method comprises the following steps of: initializing, forming an adjustable beam, fixing parameter filtering, blocking a signal, carrying out adaptive noise cancelling, and updating a sound source direction. The invention provides an adjustable parallel beam former group combined with a sidelobe canceller structure to achieve real-time tracking of a target sound source direction, embeds the sound source direction tracking function directly to a generalized sidelobe canceller structure, can achieve sound source direction tracking and voice enhancement, thereby overcoming sensibility of an algorithm performance on a DOA (Direction of Arrival) estimation error.

A method of performing friction stir welding is provided herein. More specifically, traditional friction stir welding requires a rotatable head that is forced against a plurality of work pieces to bond the same. The rotational and normal forces generated by the friction stir welding tool are generally reacted by a backing plate, anvil, mandrel or other mechanisms, such hardware are subject to the applied forces and are often supported with additional internal supports. Conversely, a method of performing a friction stir weld is described that omits the need for such a backing member and internal supports as it is performed using a self reacting pin tool.

The invention discloses a geomagnetism-aided navigation method based on match degree, relating to a geomagnetic matching algorithm. The method of the invention calculates the match degree according to a gray correlation coefficient and the weight of a geomagnetic element and measures the similarity degree between the geomagnetic element value corresponding to a position point in a matching region and the geomagnetic element value actually measured by a magnetic sensor, thereby judging a matching point in the matching region and finally carrying out the matching positioning. Compared with the traditional contour matching algorithm, the method of the invention fully utilizes the information of a geomagnetic field vector for carrying out the vector positioning, eliminates the error-matching phenomenon which possibly occurs in the traditional matching algorithm, realizes precise positioning and has good real-time performance.

The invention discloses an image searching/matching method. The method comprises the following steps of: firstly, resolving an initial matching feature point set of two images, then, judging and eliminating error matching feature point pairs, and judging whether the two images are matched according to the number of the correct matching feature point pairs; wherein the step of judging whether the initial matching feature points are the error matching feature point pairs comprises the following procedures of: in the two images, respectively taking the initial matching feature point as a center, dividing each image into more than two regions, and numbering each region; in the two images, respectively describing the global feature of the initial matching feature point by a vector composed of the number of the region where each of the other initial matching feature points is located; comparing the two vectors, if the similarity of the two vectors meets the requirement, the initial matching feature points are the correct matching feature point pairs. The method of the invention not only is adaptive to the image searching in complex conditions, such as image size variation, image embedding, visual angle variation and the like, but also has higher searching efficiency and recognition accuracy. The invention further discloses an image searching/matching system.

A speech recognition method for a robot. The speech recognition method for the robot includes one fundamental acoustic model. Whenever the noisy environment and the speaker are changed, the speech recognition method generates a plurality of parallel acoustic models in which the characteristic for each noisy environment and the characteristic for each speaker are reflected. As a result, the speech recognition method for the robot can freely recognize one of several acoustic models according to individual environments and speakers, such that it can basically remove mismatch between the model training environment and the test environment, thereby improving speech recognition capabilities.

The invention relates to a metallic carbide/carbon composite coating prepared on the surface of a carbon material and a method thereof. The method comprises the following steps: placing the carbon material into a chemical vapor deposition furnace, introducing propylene and nitrogen of which flow rates are 100 to 800sccm and 100 to 2,000sccm respectively into the furnace, simultaneously heating the carbon material to between 700 and 1,300 DEG C at a rate of 1 to 20 DEG C per minute, and preserving the heat for 40 to 120 hours to obtain the carbon material of which surface is deposited with a pyrolytic carbon coating; placing the carbon material into a crucible, covering a mixture of 1 to 1.9 times of assistant and 0.01 to 1.2 times of transition metal powder in terms of the carbon material on the carbon material, heating the carbon material to between 600 and 1,200 DEG C at a rate of 1 to 30 DEG C per minute under the atmosphere of the nitrogen, preserving the heat for 1 to 20 hours, cooling the mixture and then taking out a product, washing the product by water and drying the product to obtain the composite coating. The method can prepare various transition metallic carbide/carbon composite coatings on the surface of the carbon material, the thickness and form of the coating are controllable, the combination of the coating and the carbon material basal body is good, and the properties of high-temperature oxidation resistance and ablation resistance of a base material are improved.

A system and method for automatic elimination of connectivity mismatches during construction of a mask layout block, maintaining the process design rules (DRC Clean) and layout connectivity (LVS Clean) correctness are disclosed. The method includes analyzing a selected polygon or net for connectivity, in a mask layout block and comparing it to a netlist that is associated with the polygon or net. The method includes comparing a physical connection in a mask layout database within a commercial layout editor to a corresponding connection in a schematic netlist and/or external constraints file. A connectivity mismatch is identified if the physical connection in the commercial layout editor database does not match the same connection in the netlist and/or external constraints file. When a mismatch is identified the connectivity error is graphically presented in the mask layout database within commercial layout editor. The method and system also provides an option to automatically correct the connectivity mismatch during the construction of the mask layout block within commercial layout editor using the editor's commands and functions.

The invention discloses an identify recognition method and an identify recognition system. First, a high-resolution palm vein image is acquired through an image acquisition mode combining CCD and FPGA. Then, the original palm vein image is preprocessed, local invariant features of the image are extracted based on training data (acquired during registration) and test data (verified online), the similarity between a test data feature point vector and a training data feature point vector is measured through use of Euclidean distance for feature matching, a decision is made according to the feature matching rate after matching, a decision result is output directly for a palm vein image with high feature matching rate, and for a palm vein image with low feature matching rate, image 3D deflection angle estimation and 3D rotation are carried out, feature selecting and matching is carried out again on the rotated image, and a decision result is then output directly.

The invention discloses a depth image obtaining method for an integrated imaging system. Firstly, multiple views of different viewpoints are generated by utilizing a computer reconstruction method; N views with continues horizontal parallaxes are selected from the views, the left-most or the right-most view is used as a reference image, stereo matching is carried out on the reference image and other views respectively, and (N-1) parallax images are obtained; proportional function fitting is carried out on (N-1) parallax values of each pixel on the basis of the (N-1) parallax images of the reference image, a fitting coefficient is the parallax value between the corresponding pixel and the nearest view, and a depth image of the reference image is obtained through calculation according to the relational expression between the parallax and depth. According to the depth image obtaining method for the integrated imaging system, the process of depth measurement is simplified, the stereo matching process is easy to achieve, mismatching among the views in image edge areas and depth discontinuous areas is lowered, mismatching generated due to noise recording and other factors is eliminated, and the accuracy of the depth image is improved.

In a load-driving semiconductor device, a part of metal interconnection in a metal interconnection layer is used to form a detecting resistor for detecting an output current, and a resistance-measuring pad for measuring a resistance value of the detecting resistor is provided. The load-driving semiconductor device generates a trimmed reference voltage in accordance with the resistance value of the detecting resistor, and controls drive of a load based on a comparison between the reference voltage and a detected voltage according to a voltage drop of the detecting resistor. Therefore, it is possible to provide a load-driving semiconductor device in which a current-detecting resistor for detecting a current that flows through a load is embedded to reduce space required on a substrate and thus reduce cost, and a current can be detected with high accuracy.

A friction stir welding system is provided herein. More specifically, traditional friction stir welding requires a rotatable head that is forced against a plurality of work pieces to bond the same. The rotational and normal forces generated by the friction stir welding tool are generally reacted by a backing plate, anvil, mandrel or other mechanisms, such hardware are subject to the applied forces and are often supported with additional internal supports. Conversely, a friction stir weld system is described that omits the need for such a backing member and internal supports as it is performed using a self reacting pin tool.

A method that includes: modeling a software system having pairs of coupled software components to yield a platform-independent model of pairs of respective platform-independent software component models associated with platform-specific software components; applying a materialization process to the platform-independent model to yield a platform-specific model by selecting respective concrete platform-specific software components for the software component models; analyzing the platform-specific model to identify mismatched pairs of concrete platform-specific software components; re-modeling the platform-specific model such that each identified mismatched pair becomes coupled together via a configurable glue component model which comprises interface maps usable to eliminate the mismatch; configuring the glue component models by determining, in response to a feedback from a user, code snippets associated with any of the interface maps; and transforming the configured glue component model into a computer code in the platform-specific language by assembling all determined code snippets into a single piece of code.

An adaptive motion vector detector adaptively selects the pixels employed in detecting motion vectors between a first frame and a second frame of a video broadcast. The first frame includes a reference block of pixels and the second frame includes a check block of pixels. An analyzing circuit adaptively determines positions of a first subset of pixel values in the reference block based on a variable feature of the reference block. A selecting circuit samples the first subset of pixel values in the reference block and a second subset of pixel values in the check block at the positions determined by the analyzing circuit.

The invention discloses a speaker verification method based on combination of an auto-associative neural network (AANN) and a Gaussian mixture model-universal background model (GMM-UBM), which can improve the performance of a speaker verification system. The invention has the following advantages and effects: the method takes the advantages of the AANN and the GMM into full account, the AANN is embedded into the GMM-UBM, a two-stage learning method is put forward, the parameters of the GMM and the AANN are alternately updated, the maximum likelihood probability is used as the common target for training the GMM and the AANN, thus the AANN can learn the difference among eigenvectors and map the eigenvector set to subspace which increases the likelihood probability, and the learning characteristics of the neural network can further eliminate the mismatch effect of the channel. Experiments show that the speaker verification method can effectively reduce the error recognition rate of the system.

The invention relates to an order production scheduling method and device and computer equipment, and the method comprises the steps: obtaining a first final assembly production scheduling plan according to a target order to be subjected to final assembly production scheduling and a current production line resource; analyzing the first general assembly scheduling plan and the matched materials ofthe finished product to obtain a plurality of matched material production orders; according to the plurality of matched material production orders and a preset constraint rule, obtaining a plurality of first matched material production scheduling plans corresponding to the plurality of matched material production orders; and if an overdue order exists in the plurality of first matching material scheduling plans, adjusting the first matching scheduling plan where the overdue order is located according to an adjustment rule. According to the production scheduling method provided by the invention, linkage production scheduling of the general assembly production scheduling plan and the matched production scheduling plan can be realized, and the problem of overdue orders is eliminated.