39results about How to "Does not cause distortion" patented technology

The invention discloses a method for quantifying surface appearance of a representation film based on multi-scale system theory. The method comprises the following steps: firstly using a scanning probe microscope to acquire a surface appearance image of the film through multistage conversion of scanning size, then judging whether the surface appearance of the film has multi-scale characteristics by using a multi-scale system analysis tool, and determining the characteristic size of a fluctuation structure on the surface of the film; then aiming at the surface appearance image with the multi-scale characteristics, using a two-dimensional wavelet packet analytic method to carry out multi-scale layer decomposition on the surface appearance image; comparing decomposed image group components with characteristic size values in size to determine the reconstruction delivery size corresponding to the decomposed image group components, and then selecting and reconstructing the image group components to obtain surface fluctuation structural image of the film with different characteristic sizes; and finally using a surface roughness method to evaluate a reconstructed image to acquire related quantitative information. The method is suitable for exquisite and perfect quantified representation for the surface appearance of a film material in micro/nano devices.

The invention provides an SACI-TR adaptive cyclic iterative reservation subcarrier (SACI-TR) algorithm for reducing an FBMC-OQAM peak to average ratio, and relates to wireless communication systems. Based on the essential reason for the peak to average ratio of FBMC/OQAM, and based on the characteristics of the signal structure, an adaptive cyclic iterative subcarrier (SACI-TR) algorithm is provided. The algorithm can automatically adjust the iterative threshold and a recursive convergence factor through adaptive learning of input data, reduce the PAPR of an FBMC/OQAM signal with less iterations, and do not cause signal distortion. Further, the algorithm can converge with fewer iterations and reduce the complexity of the system on another level. Theoretical analysis and numerical simulation confirm the performance of the algorithm.

The invention discloses thiazole triphenylamine photosensitive dye and a preparation method thereof. The structural formula of the photosensitive dye can be found in the specification, wherein R1 stands for C1-C10 alkyl or C2-C10 alkenyl; Ar stands for a bridge chain constituted by aryl, heterocyclic ring aryl and the like. According to the thiazole triphenylamine photosensitive dye and the preparation method thereof, thiazolone containing electron-rich heteroatoms such as nitrogen, oxygen and sulfur is introduced into a triphenylamine electron donor, electron donating capability of the donor can be improved, the spectral absorption range of the photosensitive dye can be broadened more effectively, and the photosensitive dye can be used for preparing solar cells, contains no precious metal ruthenium, is low in preparation cost and simple in purification method and has a wide application prospect.

The invention discloses a standard-definition input and high-definition output-based on-board image processing method. The method comprises image enhancement and image fusion, wherein the image enhancement comprises the following steps of: 1, inputting an RGB color image and respectively carrying out following processing on three channel images R, G and B, 2, carrying out gray stretching correction on the image, 3, calculating an overall brightness coefficient and an overall adjustment coefficient of the image, 4, dividing the image into M*M sub-block images, 5, calculating a brightness coefficient and an adjustment coefficient of each sub-block image, 6, correcting the adjustment coefficient of each sub-block image according to the overall adjustment coefficient of the image, 7, calculating an adjustment coefficient of each pixel point, and 8, adjusting the brightness of each pixel point; and the image fusion comprises the following steps of: fusing overlapped areas of two adjacent images through a weighted gradient manner, defining the two adjacent frames to be a first image and a second image, and gradually transiting from the first image to the second image in the overlapped areas through position weighted fusion so as to realize fusion of the two adjacent images.

The invention belongs to the field of biomedical engineering, and relates to a wavelet filteration method for muting a carbon dioxide concentration detection signal. The method comprises the following steps: selecting Mexican Hat as a wavelet basis, and determining the gradations of wavelet decomposition to be 3; then carrying out wavelet decomposition of three gradations on a carbon dioxide concentration signal detected by a carbon dioxide monitor; setting a certain fixed threshold, and carrying out threshold quantization treatment on each high-frequency coefficient of the first gradation to the third gradation; and carrying out wavelet reconstruction of one-dimensional signals according the low-frequency coefficients of the third gradation of wavelet decomposition and the high-frequency coefficients of the first gradation, the second gradation and the third gradation obtained by threshold quantization treatment. The invention can well realize effective separation of the useful part and noise of the signal, thereby causing no signal distortion.

The invention relates to a method of embedding a watermark W in an information signal P, to a corresponding arrangement for embedding a watermark W in an information signal P, to an information signal P with an embedded watermark W and to a storage medium 50 having stored thereon an information signal P with an embedded watermark W. This method is carried out by determining local weight factors lambd(P) for said watermark based on data of said information signal P, wherein said local weight factors lambd(P) are determined such that the embedded watermark W is rendered substantially imperceptible when embedded in said information signal. The watermark W is locally weighted using said determined local weight factors lambd(P). Then said locally weighted watermark is embedded in said information signal P. When determining said local weight factors lambd(P) of said watermark W temporal data of said information signal are taken into account.

The invention discloses an electric connector which is used for electrically connecting a first butt joint component to a second butt joint component. The electric connector comprises an insulating body; at least one differential signal pair which is disposed on the insulating body, and comprises a long signal terminal and a short signal terminal, wherein the length of the long signal terminal isgreater than the length of the short signal terminal, the thickness of the long signal terminal is greater than the thickness of the short signal terminal, and the long signal terminal has a first contact portion, a first guiding portion and a first bend portion which is connected with the first contact portion and the first guiding portion, the short signal terminal has a second contact portion,a second guiding portion, and a second bent portion which is connected with the second contact portion and the second guiding portion. The first contact portion and the second contact portion simultaneously make contact with the first butt joint component, and the first guiding portion and the second guiding portion simultaneously make contact with the second butt joint member.

The invention provides a multi-cavity plasma generator anode, which comprises a compression cavity, a stable combustion cavity, a conduction flow cavity and an accelerating cavity, which are connected in succession; the compression cavity is used to compress plasmas generated by a cathode; the stable combustion cavity can meet the requirement of plasma expansion; the conduction flow cavity provides a good electrically conductive path for conduction electrons; the accelerating cavity is a double-parabola structure formed by an upper-open parabola and a lower-open parabola; and the compression section is used to compress plasmas and improve plasma density, and the accelerating section is used to reduce the resistance of plasmas jetting form the leading end of the anode and increase plasma jetting velocity. The multi-cavity plasma generator anode provided by the invention is different from the traditional plasma generator anode, which adopts a first-compression-and-then-expansion type nozzle. In the invention, a unique multi-cavity anode construction is designed according to the expansion property of plasmas, and therefore the shortcoming of the traditional anode that the anode life is shortened due to too fast ablation rate resulting from the overlap of a conducting zone and an electric arc combustion zone is overcome.

A refrigerator has an inner space enclosed by a heat-insulating housing and has at least one compartment for accommodating articles that are to be cooled, this compartment having a curved edge (8) and being placed in the inner space. A strip (9) placed on the curved edge (8) in the form of a decorative, protective or reinforcing element, maintains its curved shape due to its plastic core (11).

The present invention provides a stereoscopic image reproducing apparatus which provides a user interface appropriate for a 3D image signal, comprising: a user interface (UI) generating unit which generates the user interface; a UI-scaling unit which scales the generated UI in accordance with the mode of the 3D image signal; a first storage unit which stores the scaled UI together with a first position value; a second storage unit which copies the UI stored in the first storage unit, and stores the copied UI together with a second position value in accordance with the mode of the 3D image signal; and an integrated storage unit which integrates the UIs stored in the first storage unit and in the second storage unit in accordance with the position value of each of the UIs, and stores the integrated UIs. Preferably, the UI-scaling unit performs a downscaling process for reducing the generated UI in the horizontal direction when the 3D image signal has a side by side mode. In addition, the UI-scaling unit preferably performs a downscaling process for reducing the generated UI in the vertical direction when the 3D image signal has a top down mode. The present invention thereby provides a user interface which causes no distortion in a stereoscopic image display.

The invention discloses a novel SDI wide dynamic range (WDR) human face capturing camera which includes a housing (2) and a lens (1), wherein the lens (1) is connected with the housing (2) through a lens interface arranged on a housing front panel (5); a control module, a WDR processing module, a wireless communication module, an SDI transmitting module, a CCD sensor and a color filter are arranged in the housing (2); the control module is respectively connected with the WDR processing module, the wireless communication module and the SDI transmitting module; the WDR processing module is also connected with the CCD sensor; the CCD senor is connected with the lens through the color filter; an SDI interface is arranged on a housing rear panel; the SDI interface is connected with the SDI transmitting module. The novel SDI WDR human face capturing camera provided by the invention adopts the SDI interface to transmit video signals, and can obtain clear images in a sharp contrast environment.

The invention discloses a DNA methylation sequencing library and a construction method and a detection method thereof. According to the method, when the sequencing library is established, the double-stranded DNA is not subjected to terminal repair, but is firstly denatured into the single-stranded DNA, and then the single-stranded DNA is used as a library establishment template and is combined with an enzymatic conversion method to establish the DNA methylation sequencing library, so that the phenomenon that a repaired basic group is read by a sequencer due to terminal repair can be avoided, and thus the sequencing data redundancy phenomenon caused by the method is avoided. In addition, the method does not adopt unmethylated dNTPs to carry out terminal repair, and a new methylation level is not introduced to the terminal, so that a distortion phenomenon of the measured methylation level is not caused.

The invention provides a method for improving the signal-to-noise ratio of LC-MS data. The method for improving the signal-to-noise ratio of the LC-MS data comprises the following steps: (A1) obtaining a starting position w1 and an ending position w2 of a chromatographic peak s (t); (A2) dividing the chromatographic peak s (t) into a peak part s1 (t) and a non-peak part s2 (t), and entering the step (B1) and the step (C1) respectively; (B1) designing a primary function according to the chromatographic peak s (t); (B2) obtaining a first layer approximation coefficient a1 and a first layer detail coefficient d1 of the peak part s1 (t); (B3) obtaining a multilayer approximation coefficient an and detail coefficients d1, d2... dn of each layer of the peak part s1 (t); (B4) obtaining an approximate part s1a (t) and a detail part s1b (t) of the peak part s1 (t); performing EMD empirical mode decomposition on the detail part s1b (t); (B5) calculating the energy value of each modal component; (B6) obtaining denoised peak part information s' 1 (t) = s1a (t) + s' 1b (t); (C1) for the non-peak part s2 (t), obtaining an approximate part s2a (t) of the non-peak part s2 (t) according to the mode of the steps (B1)-(B4); and (2) integrating the peak part information s' 1 (t) and the approximate part s2a (t) to obtain the denoised chromatographic peak s' (t). The method has the advantages of good denoising effect and the like.

The invention provides a source-electrode-free high-power field-effect tube complementary output circuit. The circuit mainly comprises a field-effect tube complementary output branch circuit, a first field-effect tube bias branch circuit, a second field-effect tube bias branch circuit, a first voltage-sharing tube stack branch circuit, a second voltage-sharing tube stack branch circuit, a first voltage-sharing tube stack bias branch circuit and a second voltage-sharing tube stack bias branch circuit, wherein the first voltage-sharing tube stack bias branch circuit and the second voltage-sharing tube stack bias branch circuit can bear most voltage and consumption power, so that source electrode resistance of the output terminal of the field-effect tube complementary output branch circuit can be removed and low output impedance can be realized. The source-electrode-free high-power field-effect tube complementary output circuit has high current output capacity and high voltage enduring high power complementary output.

The present invention provides an image display method, comprising: when the first terminal restores the backup file, if the first terminal detects the first image file from the second terminal in the restored backup file, the first terminal A terminal acquires the first resolution of the first image file included in the first image file and the second resolution of the display unit of the first terminal; the first terminal determines whether the second resolution is The same as the first resolution; if the judgment is no, the first terminal obtains a second image file with a resolution of the second resolution according to the first image file; the first terminal obtains the second image file with the second resolution through the The display unit of the first terminal displays the generated second image file. The embodiment of the invention also discloses a terminal. By adopting the invention, the backup image file of the second terminal can be adjusted when the backup image file of the second terminal is restored to the first terminal, and the display effect of the restored image file can be improved.