89results about How to "Avoid comparison" patented technology

A liquid crystal device of the present invention performs transmissive display using light from an illumination devices 111 and 112 in a dark environment, and reflective display using light reflected by a transflective layer 123 provided on the inner side of a liquid crystal cell in a bright environment. A retardation plate is provided adjacent to a polarizer 109 and an illumination device so that the rotational direction of polarization of the light emitted from the illumination device is the same as that of the polarization of the light reflected by the transflective layer in a dark display state.

In a method of driving an organic-electroluminescence display device, when a small white pattern is displayed at the same position of the black background for a long time, burn-in of the white-pattern displayed portion is prevented without a feeling of a sense of the contrast lack. The organic-electroluminescence display device includes an organic-electroluminescence element panel, and an input-signal processing circuit into which an image signal is to be input. The input-signal processing circuit includes a luminance detection circuit for detecting average luminance of the input image signal, and a luminance control circuit. The luminance control circuit, when, as an image on the organic-electroluminescence element panel, a high-luminance pattern continues to be displayed longer than a time-interval T1 on a low average-luminance screen, lowers the luminance of the pattern down to a predetermined value with a time-interval T2 after T1.

A safety controller executes a control program in two processing units to detect processor failure by comparison of the execution in each unit. This comparison is made rapid by synchronizing the input variables at the beginning of the task and comparing output variables at a conclusion of the task, avoiding line-by-line comparison of input and output variables. Intermediate variables, that are neither input nor output values, are compared at a less frequent interval.

The invention discloses an image generation method based on a face recognition technology and an apparatus. A specific embodiment of the method comprises the following steps: carrying out face identification on a source image and extracting a plurality of face characteristic points; comparing the face characteristic points to image material characteristic points and screening an image material which matches with the face characteristic points, wherein the image material characteristic points are extracted from the image material; according to the screened image material, splicing a face image. By using the method and the apparatus, browsing and operation processes of a user can be reduced and conversion from a real face image to a cartoon image is completed.

The present invention provides a light-emitting element and a light-emitting device which have high contrast, and specifically, provides a light-emitting device whose contrast is enhanced, not by using a polarizing plate but using a conventional electrode material. Reflection of external light is suppressed by provision of a light-absorbing layer included between a non-light-transmitting electrode and a light-emitting layer. As the light-absorbing layer, a layer is used, which is obtained by adding a halogen atom into a layer including an organic compound and a metal oxide. Further, the light-absorbing layer is formed also over a region in which a thin film transistor for driving a light-emitting element is formed, a region in which a wiring is formed, and the like, and thus light is extracted from the side opposite to the region in which the TFT is formed, thereby reducing reflection of external light.

The present invention provides an IPS-type transflective liquid crystal display device in which a contrast is not inverted between a transmissive portion and a reflective portion. The transflective liquid crystal display device includes a liquid crystal display panel having a pair of substrates and liquid crystal which is sandwiched between the pair of substrates, wherein the liquid crystal display panel includes the plurality of sub pixels each of which includes a transmissive portion and a reflective portion, each sub pixel of the plurality of sub pixels includes a pixel electrode which is formed on one substrate out of the pair of substrates and a counter electrode which is formed on the one substrate, and an electric field is generated between the pixel electrode and the counter electrode thus driving the liquid crystal. Further, each sub pixel is configured such that the pixel electrode is formed in common with respect to the transmissive portion and the reflective portion and the counter electrode is formed independently with respect to the transmissive portion and the reflective portion.

A method of modelling real objects represented in an image of the terrestrial surface, in particular buildings, on the basis of a geographically referenced image, the image being produced by an aerial or space sensor associated with a physical picture-capture model, comprises at least the following steps: choosing a parametric model of the external surface of the said real object; for several suites of parameters of the said model: projecting the parametrized model into the image by applying the physical picture-capture model, and evaluating the fit between the projected model and the radiometric characteristics of the image; and determining the parameters of the model for which the fit is the best so as to model the said object with these parameters. The method of modelling applies notably to teledetection, digital geography, to the construction of urban 3D databases or their updating.

The invention relates to an absolute calibration method of using spherical wave front for calibrating a Hartmann-Shack sensor, and the calibration method can very accurately calibrate physical parameters and measurement precision of the Hartmann-Shack sensor. The absolute calibration method is characterized in that the absolute calibration method utilizes the corresponding relationship between thespherical wave front and output of the sensor for precisely calibrating the physical parameters of the sensor, and uses the spherical wave front to replace plane wave front used in the traditional calibration to be used as a reference beam for calibrating the Hartmann-Shack sensor. As the radii of curvature of the spherical wave front and lattice image features output by the sensor are in one-to-one relationship, actual values of the physical parameters of the Hartmann-Shack sensor can be precisely calibrated by precisely controlling the radius of curvature of the spherical wave front to be measured and mutually linking information of the images output by the sensor when in different radii of curvature with the corresponding information of the radius of curvature of the spherical wave front. The spherical wave front is used for replacing the plane wave front to be used as the reference beam for removing systematic errors; as the self-errors of the plane wave front are eliminated, theabsolute calibration method is conductive to improving the measurement precision of the Hartmann-Shack sensor.

In a surface light source device of side light type applied to a liquid crystal display device, etc., more specifically a surface light source device of side light type having a directivity emitting characteristic, a bright-and-dark-band contrast which is generated in a vicinity of an incidence surface is prevented. In a surface light source device of side light type, light diffusible areas composed on main-and-supplementary diffusible areas are formed on a slanted surface and an emitting surface of a light guide plate having a directivity emitting characteristic. A silver sheet is fixed to a projected portion of a prism sheet along an upper edge, and an illumination light which arrives at the upper edge from a fluorescent lamp is blocked so that the strong brightening of the upper edge is prevented. An illumination light form a lower edge is blocked by a reflector or a frame and reflected diffusively. The light diffusible area may be formed on one of the slanted surface and the emitting surface. Moreover, the light diffusible area may be formed on an additional element such as a reflection sheet.

The invention discloses a tubular pile pull-out test device with a single dowel bar structure. The tubular pile pull-out test device comprises a base, an upper plate, a dowel bar, a centre hole jack and a main beam, wherein the main beam is arranged on the ground through buttresses; the base is positioned below the main beam and is used for connecting the top of a tubular pile sample; the upper plate is positioned above the main beam; the centre hole jack is arranged on the main beam and props against the bottom of the upper plate; the lower end of the dowel bar is connected with the base; the upper end of the dowel bar penetrates through the centre hole jack and is connected with the upper plate. The tubular pile pull-out test device not only has the advantage that in the prior art, a tubular pile pull-out test device can be recycled after being manufactured at one step, but also solves the problem that the pull-out forces of a plurality of dowel bars are inconsistent, facilitates the improvement of the accuracy of the test result, and avoids the pull-out force detection, comparison and adjustment of the dowel bars, thereby improving the testing efficiency.

The invention provides a method for quickly detecting a shot boundary, comprising the following steps that: firstly, a video frame inside a lens is removed from an original frame sequence OFS to obtain a recorded frame sequence RFS according to changes of a brightness variance feature of the video frame; meanwhile, a partial lens gradation existed in a video is determined according to a concave shaped parabola of the brightness variance feature; then, a pixel pair difference, a color histogram difference feature, an edge histogram difference feature and so on are selected from the RFS as accordances for a video continuity detection; then, a support vector machine is adopted to perform a shot cut detection; finally, the shot cut detection is performed for the rest video sequence by adopting a method of reducing temporal resolution. The method for quickly detecting a shot boundary improves the processing speed for the shot boundary detection, and guarantees a recall ratio and the accuracy of an operation at the same time.

The invention discloses a real-time audio comparison method for judging whether two signals are same contents. The real-time audio comparison method comprises the steps: initially synchronizing two audio signals, and periodically comparing two audios; respectively reading audios from the two audio signals for N seconds to sample two groups of audio sampling sequences to be synchronized; aligning two audio sampling sequences by moving a time delay value, wherein the moving of the time delay value at the time is coarse synchronization; backwards taking synchronous test audio sequences with the lengths of M from the same time point of the two audio sampling sequences so as to obtain feature value sequences of the two synchronous test audio sequences, wherein the time delay values are respectively D0, D1 and D2; respectively calculating relevance values L0, L1 and L2 of feature values of the two synchronous test audio sequences; regularly sampling audio signals of the two audios, and calculating an MEL cepstrum feature value and the relevance of two sampled audio sequences; if the relevance is still greater than a threshold A, indicating that contents of the two audios are still kept consistent within the period of time.

A power grid peak load clustering extraction method based on Pearson coefficient and MapReduce parallel computing comprises the following steps: 1, conducting data cleaning and abnormal data restoration on a load data set, and then conducting dimensionality reduction on the load data set; 2, storing the data set subjected to dimension reduction in a Hadoop distributed file system line by line, anddividing the data set into slices to form sub-data sets; 3, reading each slice sub-data set in the step 2 by using a MapReduce computing architecture, and selecting an initial clustering center by using a Pearson correlation coefficient as a similarity criterion through a parallel model; and 4, allocating the clustering calculation task to the Map task node in the MapReduce, and combining the initial clustering center in the step 3 to complete parallel clustering of the data set. The method is more suitable for power load big data processing derived from more and more vigorous development information times.

A transflective liquid crystal display device with a reflective mode using external light and a transmissive mode using a light source comprising a light source (11) used in the transmissive mode, a liquid crystal panel (12), arranged over the light source, for operating as display element and a diffusing optical element (13), arranged over the liquid crystal panel, for having a scattering state in the reflective mode and having a non-scattering state in the transmissive mode.

The invention is suitable for the technical field of artificial intelligence, and provides a face recognition method and device, terminal equipment and a medium, and the method comprises the steps: collecting a to-be-detected picture, and extracting a to-be-detected face in the to-be-detected picture; if the to-be-detected human face is not shielded, adopting a preset first feature library to recognize the to-be-detected human face which is not shielded, wherein first human face feature information which is not shielded is stored in the first feature library; and if the to-be-detected face isshielded, adopting a preset second feature library to identify the shielded to-be-detected face, wherein shielded second face feature information is stored in the second feature library, and the first face feature information and the second face feature information are extracted from an unshielded face picture. By means of the method, the accuracy of shielded face recognition can be improved.

The invention provides a method for accurately calculating the volume of a cubic object based on a depth image, and the method comprises the steps: obtaining the depth image and a gradient image of the cubic object, carrying out the classification of pixel points in the depth image, and obtaining an edge point image and segmented images of the upper surface, the left vertical plane and the right vertical plane of the cubic object; carrying out edge line detection on the edge point graph, clustering and merging all detected edge lines to obtain a collinear edge line group set, extracting angular points according to the longest edge line of each group, and pairing the angular points; determining the upper surface and the overall contour of the cubic object; obtaining a contour edge line of the upper surface and determining an upper surface quadrangle according to the contour edge line; calculating the length and the width of the cubic object according to the quadrangle on the upper surface, fitting four vertical planes, accurately calculating the length, the width and the height of the cubic object, and calculating the volume of the cubic object. The method is applied to the logistics industry, the problems of volume measurement limitation and time consumption of targets such as cubic object-shaped packages can be solved, and the package sorting efficiency is improved.

The invention discloses a tablet computer based on-site inspection recording system. The system comprises a setting module, a document creating module, a document viewing module, a document exporting module, a document importing module and a merging module. Tablet computers are used for recording and managing on-site inspection results, and accordingly working efficiency of on-site inspection can be improved greatly; background importing is facilitated, workload of after-event data electronization is also reduced, and probable mistakes and omissions of the inspection results are decreased. Meanwhile, the system provides a handwritten signature function, non-repudiation the same as paper documents is realized, and a sufficient guarantee is provided for validity and identity of the inspection results.