49results about How to "Improve coding effect" patented technology

The invention discloses a code printing machine. The code printing machine comprises a platform, an ink gun and a mounting frame, wherein the platform is used for conveying materials, the ink gun is arranged above the platform, and the mounting frame is used for fixing the ink gun. The platform comprises a platform frame, at least two mutually parallel belt wheels and a conveyor belt, wherein the belt wheels are arranged on the platform frame, and the conveyor belt is wound around the belt wheels. The code printing machine further comprises an ink gun connecting block and an adjustment part, wherein the ink gun connecting block and the adjustment part are used for adjusting the height and inclination of the ink gun relative to the mounting frame, the two sides of the ink gun connecting block are connected with the ink gun and the adjustment part respectively, and the adjustment part is fixedly connected to the mounting frame. The positions, on the two sides of the each belt wheel, of the platform frame are respectively provided with a limiting device for limiting the motion path of the materials on the conveyor belt. The adaptability to the outline of a packaging box of the inkjet code printing machine is facilitated, and meanwhile code printing accuracy and code printing efficiency are improved.

The invention provides an H.264 downsizing transcoding method based on texture and motion characteristics, and belongs to the technical field of computer digital video transcoding. The invention specifically comprises the following steps: (1) acquiring the coding information input into the H.264 code stream; wherein, the coding information includes an inter-frame coding mode, motion vectors and discrete cosine transformation coefficients; (2) dividing the motion area and the background area according to the image texture characteristics by means of the motion edge detection; (3) adopting the corresponding inter-frame mode according to the motion characteristics of the macro-blocks located in different areas, particularly, reconstructing the motion vectors by the adaptive motion vector re-sampling method or the align-to-worst weighting method according to the motion difference of the macro-blocks located in the motion area, reconstructing the motion vectors of the macro-blocks located in the background area by the align-to-average weighting method, and carrying out the motion search of the macro-blocks located on the edge of the motion object and the internal macro-blocks. Compared with other methods, the method of the invention can not only guarantee the quality of the transcoded video, but also effectively solve the problem of the downsizing transcoding real-time performance.

The invention requires protecting a rapid calculating method of a sum of absolute transformed difference in video coding (SATD), relating to detection of image of distortion factor in the compression decoding technology. The invention obtains the SATD by simply summing or subtracting related elements of a partitioned matrix of a difference value image block in an original space domain or processes part of Hadamard transformation and calculates the SATD for the part of Hadamard transformation matrix, which saves (partly saves) a calculation process that processing the Hadamard transformation for the related elements of a partitioned matrix of a difference value image block in prior art. The rapid calculating method of the invention is capable of effectively reducing calculation amount of SATD, maintains the original features of the SATD completely. The invention can be applied to replacing the SAD way in the distortion factor measurement selected by the optimal coding way in the sub pixel movement estimation and low calculation complex.

The invention discloses a quick size reduction transcoding method based on a region of interest, and belongs to the technical field of digital video transcoding of computers. The quick size reduction transcoding method comprises the following steps of: (1) acquiring encoded information from an input H.264 encoded code stream, wherein the encoded information comprises an inter-frame encoding mode, a motion vector and a discrete cosine conversion coefficient; and performing size reduction on a video of a pixel from a common intermediate format (CIF) into a quarter common intermediate format (QCIF), namely 176 pixels *144 pixels; (2) dividing a motion region and a background region by use of motion edge detection according to an image texture characteristic; and (3) adopting corresponding inter-frame modes for macroblocks positioned in different regions according to the motion characteristics of the marcoblocks, performing motion vector reconstruction on the macroblocks positioned in the motion region according to motion differences of the macroblocks by respectively selecting an adaptive motion vector down-sampling method or a most severe weighing method, performing the motion vector reconstruction on the macroblocks positioned in the background region by adopting an average weighing method, and performing motion search on the macroblocks positioned on the edge of and in a motion target. By utilizing the quick size reduction transcoding method, the quality of a transcoded video can be guaranteed, and the instantaneity of size reduction transcoding is realized.

The invention discloses a medicine bottle box code printing device with an adjusting support. The medicine bottle box code printing device comprises a transmission track and a code printing device (11) located above the transmission track, the code printing device (11) is arranged on the adjusting support which comprises a transverse rod (10) and two supporting rods (9), the transverse rod (10) and the two supporting rods (9) are mutually connected, the supporting rods (9) are sleeved with the two ends of the transverse rod (10) through chucks (12), the transverse rod (10) is sleeved with the code printing device (11), the transmission track comprises a transmission plate (1) in the shape of a cuboid and supporting legs (3) fixed to the two ends of the transmission plate (1), and the transmission plate (1) is located between the two supporting rods (9). By means of the structure, the medicine bottle box code printing device enables the code printing device (11) to achieve transverse and longitudinal adjustment and accordingly achieves the ideal code printing effect easily.

The invention discloses a video coding Merge mode rapid selection method and a video coding Merge mode rapid selection device based on time-space domain correlation. In the method, a FRUC Merge mode is ended in advance via the information of a time domain and a space domain, computation complexity of the FRUC Merge is simplified according to motion information, so that coding time is greatly reduced while coding quality is ensured. The method and the device provided by the invention are simple and easy to use and simple in structure, and greatly improve practicability of JEM.

The invention discloses a passive optical network link monitoring system and method based on a tunable laser. The system comprises a monitoring server, a tunable laser, a three-port circulator, a wavelength division multiplexer, a fiber grating encoder, an optical receiver and a data acquisition card. The system scans coded wavelengths one by one by adopting the tunable laser at the transmitting end, receives reflected signals of the coded wavelengths in turn by using the single-channel optical receiver at the receiving end, and finally judges the link state of a passive optical network according to the reflected signals of all coded wavelengths, thereby overcoming the defects that the cost is high, it is not conducive to monitoring the capacity expansion of users and that the central wavelength of a fiber grating is affected by the temperature in the prior art.

The invention discloses a height-adjustable coding machine support and a use method thereof. The coding machine support comprises a bottom plate, a supporting rod and a supporting plate. The supporting rod is vertically and fixedly connected to the bottom plate. The supporting plate is fixedly connected to the supporting rod and is parallel to the bottom plate. A coding machine is fixedly connected to the upper end face of the supporting plate. A muff-coupling piece is arranged at one end of the supporting plate, the supporting plate is detachably and fixedly connected to the supporting rod through the muff-coupling piece, and a fastening device is arranged on the muff-coupling piece. According to the coding machine support, as the supporting plate is provided with the muff-coupling piece and the fastening device, the height of the coding machine can be adjusted, the optimal position is found for coding, the coding effect is better, more objects with different heights can be coded, and the application range is wider; the connecting structure is simple, operation is convenient and quick, connection is firm, and the problems that in the prior art, as the height cannot be adjusted, the purpose is single and adaptation is poor are effectively solved; and moreover, the height-adjustable coding machine support has the beneficial effects that the structure is simple, the cost is low, and the use method is simple.

The invention relates to an automatic blank arranging machine which solves the problem that an existing blank arranging machine is low in automation degree. The automatic blank arranging machine comprises a machine frame, the machine frame is provided with a blank conveying mechanism for conveying blank and a tray conveying mechanism for conveying trays, one end of the blank conveying mechanism is provided with a blank fetching device which can transfer the blank from a peripheral device to the blank conveying mechanism, the other end of the blank conveying mechanism extends to the position above the tray conveying mechanism, and a stacking device which can axially move along the tray conveying mechanism in a reciprocating mode and transfer and stack the blank located on the blank conveying mechanism into the trays located on the tray conveying mechanism is arranged on the machine frame. The automatic blank arranging machine has the advantages of being simple in structure, high in automation degree, capable of fetching multiple pieces of blank at a time, high in stability, high in operating efficiency, good in stacking effect, orderly in blank stacking and wide in application range, the blank is not prone to sliding down when being grabbed, and the blank is not prone to adhering when being stacked.

The application provides an image processing method, apparatus and system. The method comprises parsing the code stream to obtain an encoding mode of a current image block to be reconstructed of the current image, a residual signal of the current image block to be reconstructed, and pixels in each reference reconstructed image block corresponding to the current image block to be reconstructed, wherein the encoding mode is an original resolution encoding mode or a down sampling encoding mode, and the current image block to be reconstructed corresponds to M reference reconstructed image blocks;determining a plurality of reference pixels of the current image block to be reconstructed according to the coding mode of the current image block to be reconstructed and pixels in the M reference reconstructed image blocks; generating a prediction signal from the plurality of reference pixels; a reconstruction signal is generated according to the prediction signal and the residual signal, and thecurrent image block to be reconstructed is reconstructed according to the reconstruction signal to obtain the current reconstructed image block. So that the reconstructed image block obtained by thedecoding end has better effect.

The invention discloses an animal product provenance code printing device. The device comprises a bottom plate, the top of the bottom plate is fixedly connected with a movable groove, the top of the bottom plate located on the back face of the movable groove is fixedly connected with a fixing block, the top of the fixing block is fixedly connected with a box body, the portion between the two sidesof the inner wall of the box body is slidably connected with a sliding plate, the top of the inner wall of the box body is fixedly connected with a first motor, the outer surface of an output shaft of the first motor is sleeved with a first belt pulley, the top of the inner wall of the box body located one side of the first motor is rotationally connected with a cam through a supporting rod, andthe front face of the cam is fixedly connected with a second belt pulley. The invention relates to the technical field of animal product provenance code printing devices. The animal product provenancecode printing device and a code printing method thereof have the advantages that the code printing effect is very good, staffs do not need to carry out code printing step by step, the time and the labor are saved, the mass code printing is conveniently carried out on animal products, and thereby the practicability of the code printing device is greatly improved.

The invention discloses a bill number-filling machine. The bill number-filling machine comprises a bottom plate, wherein a fixed plate is installed at one end of the bottom plate; a support seat is installed on the fixed plate; a support is rotationally connected to the support seat; a fixed seat is rotationally connected to the support; a clamping groove is opened in the fixed seat; a code printer is installed in the clamping groove; an inking device for inking the code printer is installed on the support, and a code printer dialing device is installed on the support. The bill number-filling machine is simple in structure, easy to realize and low in manufacturing cost; after ink distribution is realized by the inking device, a code printing effect is realized, and the printed number is clear; moreover, the pressing position of the ode printer is fixed, only paper needs to be placed at a specified position, the location is accurate and reliable, and the operation is convenient and simple.

The invention discloses a code drilling workbench assembly and a code drilling machine, which belong to the technical field of drilling equipment. The code drilling workbench assembly comprises a workbench arranged on a base of a code drilling machine, a conveying assembly and a clamping assembly, wherein the workbench is used for supporting a to-be-machined part, and the conveying assembly is used for conveying the to-be-machined part located on the workbench; the clamping assembly is used for clamping the to-be-machined part supported on the workbench. The code drilling workbench assembly provided by the invention has the effect of conveying the to-be-machined part, can achieve feeding and discharging, is high in automation degree, saves equipment space and is wider in application range;and the code drilling workbench assembly further comprises a clamping assembly, and the clamping assembly can clamp and fix the to-be-machined part on the workbench so as to guarantee the code printing effect. According to the code drilling machine, due to the fact that the code drilling workbench assembly is adopted, the automation degree is high, the code printing effect is good, and the application range is wider.

The invention discloses a 1/4 sub-pixel interpolation method, which comprises the following steps of: dividing the region between two left and right adjacent integer pixel points (A2 and A3) of a sub-pixel point to be interpolated into four equal parts; working out values of a first slope (k1), a second slope (k2), a third slope (k3) and a fourth slope (k4) of four regions between the integer pixel point A2 and the integer pixel point A3 according to the changing law of four adjacent integer pixels (A1, A2, A3 and A4); obtaining an interpolation coefficient corresponding to the sub-pixel point to be interpolated according to the values of the first slope (k1), the second slope (k2), the third slope (k3) and the fourth slope (k4); and performing the interpolation with 1/4 accuracy on the region between a second integer pixel point (A2) and a third integer pixel point (A3) according to the interpolation coefficient. In the invention, the change rate between pixel luminance values is taken into consideration during the interpolation process, and the change between adjacent integer pixels can be well simulated; moreover, the encoding effect is good, and the calculation is convenient.

The invention provides an encoding and decoding method, device and equipment, and the method comprises the steps: building a block vector candidate information list corresponding to a current block ifthe intra-frame block copy is started for the current block, and enabling the block vector candidate information list to comprise at least one specified type of block vector, wherein the specified type of block vector comprises a default block vector and/or a deformed block vector, the deformed block vector is obtained by superposing an offset value on a candidate block vector, the candidate block vector is a block vector of a spatial domain adjacent block of the current block, or a historical block vector in an HMVP list corresponding to the current block, or the block vectors are added intothe block vector candidate information list; and encoding or decoding the current block according to the block vector candidate information list. Through the technical scheme of the invention, the coding performance can be improved.

The invention discloses an auxiliary positioning device of a laser coding machine. The auxiliary positioning device comprises a machine body (1), and the machine body (1) is provided with a conveyingmodule (2), a fixing module (3), a camera module (4) and a management module (5). When the auxiliary positioning device is in operation, the conveying module (2) is arranged on an automatic productionline and conveys a product to a camera scanning area of the laser coding machine, the product is fixed to one position through the fixing module (3), the camera module (4) is used for scanning the image of the product, image information obtained finally through scanning is sent to the management module (5) to be processed, and a positioning adjusting device (6) is arranged on the fixing module (3) to be used for adjusting the placing position of the product. Stable positioning of the product can be achieved, the definition of patterns or words coded by the laser coding machine can be more effectively ensured, and the coding effect is improved.

The invention discloses a commodity quick coding device, which comprises a worktable and a vertical frame welded to the back side of the middle of the worktable. A plurality of conveying rollers arranged at intervals are fixedly mounted on the two sides of the top of the worktable correspondingly, a curved slide way is further mounted at the front end of the worktable through a fixing frame, the bottom end of the curved slide way is located at the top of the front end of the worktable, and a drying mechanism, a coding mechanism, a rotating mechanism and a counting mechanism are further arranged on the worktable; and the drying mechanism comprises a drying box, the drying box is mounted on one side of the top of the worktable through a fixing block, and electric heating pipes are mounted atthe tops of the two sides in the drying box through fixing frames correspondingly. The commodity quick coding device has the functions of pre-treating, drying and dehumidifying commodity outer packages, the coding quality of the commodity outer packages is guaranteed, the coding positions of the commodity outer packages can be precisely adjusted according to the need, the accuracy of the coding positions of the commodity outer packages is guaranteed, and thus the commodity quick coding device is suitable for being widely used and promoted.

The invention discloses a low bit rate video encoding method and system based on conversion downsampling. The method comprises the steps that video signal downsampling is carried out, wherein two-dimensional conversion is utilized for downsampling, and low frequency coefficients and high frequency coefficients are encoded in different methods; low frequency coefficient hybrid encoding frame encoding is carried out, wherein the low frequency coefficients are mapped, rounded down and normalized, and then HEVC encoding is carried out on the low frequency coefficients; high frequency coefficient bit plane encoding and frame segmentation processing are carried out, wherein bit plane encoding scanning is utilized for obtaining the large coefficient in the high frequency coefficients, then frame segmentation processing is utilized for encoding the large coefficient with a macro block as a unit. The low and high frequency encoding rate distribution is effectively achieved through the energy relation. According to the low bit rate video encoding method and system based on conversion downsampling, the significance of low frequency coefficient encoding is ensured, and meanwhile by means of the influences of the large coefficient in the high frequency coefficients on video details, the encoding effect similar to the HEVC is achieved on encoding; in addition, due to downsampling introduction, the encoding resolution ratio is lowered, and the complexity of the whole encoding process is greatly lowered.

The invention discloses a video low-complexity coding method based on panoramic visual perception characteristics, and the method comprises the steps: employing an airspace JND threshold value as an airspace perception factor, obtaining a motion perception factor through a weighted gradient value, and obtaining an average value of space-time weighted perception factors of all pixel points in a maximum coding unit; according to a rate distortion optimization theory, calculating a Lagrange coefficient adjustment factor of the maximum coding unit based on the space-time weighted perception factor, and further obtaining a quantization parameter variation of the maximum coding unit based on the space-time weighted perception factor; meanwhile, the quantization parameter variable quantity based on the dimension weight of the maximum coding unit is calculated; calculating a new coding quantization parameter of the maximum coding unit according to the two quantization parameter variations, and applying the new coding quantization parameter to coding; the method has the advantages that the coding rate can be effectively reduced while the coding quality is ensured, so that the coding complexity can be effectively reduced, the rate distortion performance is remarkably improved, and particularly, the coding effect is better when the initial coding quantization parameter is small.