266results about How to "No loss of quality" patented technology

Described are computer-based methods and apparatuses, including computer program products, for statistical multiplexing of compressed video streams. A deadline of a packet of a compressed video stream is computed based on a program clock reference value of the packet. A plurality of packets, which includes the packet, is sorted based on deadlines corresponding to the packets. A next packet from the sorted plurality of packets is selected, the next packet having a corresponding deadline nearest to a system clock time. The next packet is transmitted.

This invention discloses a noise elimination device and method, which uses two microphones to form two zero point along front and back heart shape microphone to make the main microphone one path of signals composed of aim sound and the other path of signal main comprises noise and then adopts frequency area self-adapting filter; through adjusting filter gains to control whole device wave beam indication range; finally through single channel to remove noise to delete main microphone signal noises.

The invention discloses a video coding and network transmission method and a video forwarding server. The video coding and network transmission method comprises the steps of A, carrying out coding on each frame of image, generating standard code stream according to preset display standards, the lowest bandwidth capable of playing the standard code stream smoothly is defined as a standard bandwidth; B, judging real-time bandwidths, dissociating at least one frame image from the frame images displayed by the standard code stream each second by adopting the mode of dropping frames initiatively if the real-time bandwidths are lower than the standard bandwidth, generating sending code stream transmitted outwards, adding at least one frame of image data from the dissociated frame data by adopting an initiative frame adding mode if real-time bandwidth is increased after the frames are dissociated, and transmitting the standard code stream outwards if the real-time bandwidths are larger than or equal to the standard bandwidth. According to the video coding and network transmission method and the video forwarding server, the image quality of each frame is not lowered, the smooth displaying of videos can be guaranteed, therefore, the video quality of different bandwidth situations can be improved, and extra communication cost cannot be increased.

The invention provides a multi-frame quality enhancement method and device for a lossy compressed video, and the method comprises the steps: employing m frames correlated with an i-th frame for the quality enhancement of the i-the frame of a decomposed video stream, so as to play the i-the frame after quality enhancement, wherein the m frames belong to the video stream, and each of the m frames and the i-th frame respectively have the same pixels, or the corresponding numbers of pixels are greater than a preset threshold value, and m is a natural number greater than one. In a specific application, the method can employ a peak quality frame for enhancing a non-peak quality frame between two peak quality frames. The above method alleviates the quality fluctuation between a plurality of frames in a play process of the video stream, and enables the quality of all frames in the video after the lossy compression to be improved.

The invention discloses a construction method for a land arrangement of a rolling ground by topsoil stripping and backfilling. The construction method comprises the following steps of: firstly, carrying out a land division, selecting the lands needing to be arranged, and dividing the lands into multiple sections; then carrying out a topsoil stripping, carrying out the topsoil stripping from the middle section to the lands on two sides, and uniformly piling the stripped topsoil on two sides of the lands; then carrying out a land flattening; flattening and reshaping the lands which are processed by the topsoil stripping and protecting side slopes; finally, carrying out a topsoil backfilling, and carrying out the uniform topsoil backfilling from two sides of the land to the middle of the flattened land. The construction method provided by the invention effectively guarantees that: the agricultural acreage is not reduced, the topsoil resource is not lost, the topsoil space match is optimized, the configuration of soil body is good, the quality of the soil is not reduced and the production of the crop is increased; and the construction efficiency of the method is higher.

The invention relates to compound printing ink, in particular to ester-soluble polyurethane compound printing ink and a preparation method thereof. The compound printing ink comprises the following components by weight percentage: 27 to 32 percent of modified polyurethane resin, 6 to 15 percent of vinyl chloride-vinyl acetate copolymer liquid, 8 to 33 percent of a pigment, 0.4 to 0.8 percent of a dispersing agent, 0.3 to 0.5 percent of wax powder, 0.2 to 0.8 percent of an antistatic agent, 0.2 to 0.5 percent of an anti-precipitating agent, 0.5 to 1.5 percent of an adhesive force reinforcing agent, 10 to 25 percent of propyl acetate, 5 to 15 percent of ethyl acetate, and 10 to 20 percent of butyl acetate. The compound ink prepared in the invention has the advantages as follows: the tinting strength is high; the color is bright; the transparency is high; the printing adaptability is high, so that the compound printing ink can be widely applied to high-low speed printing of plastic flexible packaging composite materials such as PET, NY and BOPP; the adhesive force to various plastic film base materials is great, and firmness is achieved; resistance to corrosion of acid, alkali and the like is high; hot adhesion phenomena are avoided; the water resistance is high; the temperature resistance is high, so that the compound printing ink can meet the processing requirements of follow-up processes such as boiling, high-temperature cooking, food refrigerating, and is high in storage stability.

The invention relates to a method for preparing an apiolin molecularly imprinted polymer, comprising the following steps: dissolving apiolin and a functional monomer of 1 mol fraction of template molecule according to the mole ratio of 1:4-1:10 in 40 parts by volume of butylene oxide of a pore-foaming agent; vibrating away from light at constant temperature for 6h; then adding ethylene dimethacrylate as a crosslinking agent, the amount of which is 4-7 times of that of the monomer, and azodiisobutyronitrile as an initiating agent, the quality of which is 1 percent of that of the monomer and thecrosslinking agent, and completely mixing; sealing after N2 is introduced to remove oxygen; carrying out thermal-initiated polymerization at the temperature of 40-60 DEG C for 24-48h, and then obtaining a rod-shaped solid polymer; rubbing and then sieving the polymer; utilizing a methanol/acetic acid (v/v=6:4) eluent to elute so as to remove the template molecule; putting in a vacuum drying cabinet and then drying until constant weight, and then obtaining the apiolin molecularly imprinted polymer. The apiolin molecularly imprinted polymer prepared by the method has specific identification ability and selective adsorption performance on apiolin. Compared with common sorbents, the polymer has the advantages of accuracy, rapidness and sensitivity. Moreover, the polymer has high percent recovery, good repeatability and long service life, thereby having wide application prospects.

The invention provides a dynamic zoning method of a side backlight zoning control system, which comprises the following steps of: A, dividing out a plurality of primary display sub-zones according the backlight zoning condition; B, dividing out a plurality of temporary zones in the primary display sub-zones; C, according to image data in the primary sub-zones, dynamically merging the temporary zones into the primary display sub-zones to generate a plurality of secondary display sub-zones; and D, carrying out processing and dynamic backlight control on the image data according to the condition of the secondary display sub-zones. In the method, according to image contents in the primary display sub-zones, part of a region at the junction of each two adjacent primary display sub-zones is dynamically merged into a certain side so as to form the secondary display sub-zone of which the size is unequal to the sizes of the primary display sub-zones and ensure a zoning mode of a liquid crystal screen more reasonable, and thus, the energy consumption can be further saved and the quality of an image cannot be lost.

The invention discloses an automatic soft rock disintegration screening instrument and a testing method thereof. According to the automatic soft rock disintegration screening instrument, a transparent outer barrel (7) is arranged on a vibrating table; a water inlet pipe (10) is arranged on the high part of the transparent outer barrel (7); a water outlet pipe (8) is arranged on a low part of the transparent outer barrel (7); a plurality of transparent inner barrels (1, 2, 3, 4, 5, 6) are sequentially arranged inside the transparent outer barrel (7) from top to bottom; the bottom of each of the transparent inner barrels (1, 2, 3, 4, 5, 6) is provided with a screening hole (13); and the pore diameters of the screening holes (13) of the plurality of transparent inner barrels (1, 2, 3, 4, 5, 6) are sequentially reduced according to the standard lab screening hole sizes from top to bottom. According to the automatic soft rock disintegration screening instrument and the testing method thereof, the automatic soft rock disintegration screening instrument simultaneously performs the disintegration process and the screening process and is high in efficiency, intuitive, high in operability and low in error.

The present invention discloses a transferable calculation meat quality near infrared detection method and device, which are capable of non-destructively and rapidly detecting meat quality. The device comprises a micro-spectrometer, a mobile terminal and a server; the mobile terminal is connected with the micro-spectrometer and the server, and is used for collecting spectral data of a meat sample, and determining the establishing position of a quality prediction model, the quality prediction model can be established according to the determined establishing position of the quality prediction model on the basis of meat sample spectral data stored in advance in the mobile terminal and corresponding quality data, the meat sample spectral data, which is collected by the mobile terminal, is used as input of the quality prediction model, the output of the quality prediction model is determined as the quality data corresponding to the collected meat sample spectral data, and the establishing position includes the mobile terminal or the server.

The invention discloses sanitary ceramic semi-finished product crack-repairing slurry and a preparation method thereof. The crack-repairing slurry comprises the following components in parts by weight: 85-95 parts of base slurry and 5-15 parts of high-temperature fireproof cotton, wherein the base slurry comprises the following components in percents by weight: 40-59% of return blank powder, 20-30% of quartz powder, 20-30% of potash feldspar powder, 0.1-0.8% of gray pigment and 0.05-0.15% of a polymer binder. The sanitary ceramic semi-finished product crack-repairing slurry is capable of repairing long cracks and large bump defects, and the repairing qualified rate is 80% or more. The crack-repairing slurry is capable of further improving company production power and product qualified rate, and reducing unnecessary waste.

A method for cutting silicon material. When the silicon block is in contact with the wire saw, the cutting starts. First, the wire saw cuts forward for a certain distance, and then the guide wheel drives the wire saw to change direction, and the wire saw cuts backward in the opposite direction; After the wire saw cuts a certain distance backward, the guide wheel drives the wire saw to change direction again, and the wire saw continues to cut forward; the invention wears less steel wire for each cutting, so that the steel wire can be cut multiple times, greatly reducing the The usage of steel wire reduces the production cost.

The invention relates to an antishake focus lens module and a control method thereof. The antishake focus lens module includes an antishake module and a lens module, wherein the antishake module is provided with an antishake frame, a barycenter adjusting device, a plurality of coils, a plurality of magnet groups, a gyroscope and three Hall sensors, the antishake frame is movably installed on a shell, and the lens module is fixed to the antishake frame; the gyroscope is arranged on the rear part of a lens module (changing to a whole module), the multiple magnet groups are arranged on the innerside of the shell in the circumferential direction of the lens module, the three Hall sensors are installed on the three positions of the antishake frame, the multiple coils are distributed on the antishake frame in the circumferential direction of the lens module, each coil is arranged in conjunction with the corresponding magnet group, and a receiving current in each coil is matched with the corresponding magnet group to drive the antishake frame to move; and the current is determined through output of the gyroscope and/or Hall sensors, and the barycenter makes the barycenter of the whole antishake focus lens module such as the antishake frame coincide with the rotating center of the antishake frame. Imaging remains stable, and the problem of image blurring caused by camera vibration orshake can be effectively solved.

Embodiments of the invention provide a scheduling method and device based on the code rate, and electronic equipment, and belong to the technical field of communications. The method comprises: obtaining a request for audio and video content sent by a client, the request comprising an identifier of the audio and video content; obtaining a code rate of audio and video contents corresponding to the request, wherein the code rate indicates data bits transmitted in unit time when the audio and video contents are transmitted; performing quality evaluation on the network node to obtain a quality metric of the network node; and selecting an optimal network node serving the client according to the code rate of the audio and video content and the quality measurement of the network node. Through theprocessing scheme disclosed by the invention, reasonable nodes are effectively scheduled before data transmission, i.e., nodes with high resource requirements are scheduled to high-quality resource nodes and nodes with secondary high resource requirements are scheduled to nodes with secondary high resource requirements, so that resources are reasonably distributed from the aspect of scheduling, the resources are saved, and the quality is hardly reduced.

The invention discloses video data sending and receiving methods, video data sending and receiving devices and a video data transmission system. The sending method comprises the following steps that according to mark information used for showing that a current frame is a background frame and/or a non-background frame, the background frame in the original coding code stream of a video image is determined; each determined background frame is segmented into at least two data packets, auxiliary code stream marks are respectively added into the data packets, and then, the data packets are encapsulated for forming an auxiliary code stream; after main code marks are added into each non-background frame in the original coding code steam, the non-background frame is encapsulated, and a main code stream is formed; the auxiliary code stream and the main code stream are sent. The background frame is segmented into at least two data packets, the auxiliary code stream marks are respectively added into the data packets, then, the data packets are encapsulated for forming the auxiliary code stream, the auxiliary code stream and the main code stream are subsequently sent, the direct transmission of the background frame is avoided, the time delay or loss of the subsequent non-background frame due to too high image instant code rate in the code stream transmission process can be reduced, meanwhile, the quality of high-quality background images used as the background frame is not reduced, and the transmission band width and the image quality are both considered.

The invention discloses a method for growing a two-dimensional nanostructure through quick physical vapor deposition. The characteristic of gradient distribution of the temperature of a tubular furnace and the advantage of movability of a reaction quartz tube are ingeniously utilized; when a quartz boat for placing a reaction raw material is arranged in a heating center, the temperature of the area far away from the center can be lowered to form gradient; and when the quartz boat moves to the heating center, the reaction raw material is heated to the target temperature through the ultrafast heating speed, and a growing substrate starts to grow at the appropriate temperature. The method has the advantages of ultrafast temperature rising speed, no mass loss of a growing source during the temperature rising process, capabilities on accurately regulating and controlling the growing temperature and the growing time, and the like; in addition, H2 and Ar are adopted as carrier gases, and an ultrathin GeSe nanosheet with the thickness being around 15nm can be successfully grown through optimizing the conditions such as the reaction raw material sublimation temperature, the gas proportion,the gas flow, the growing time and the like; and the method is simple and high-efficiency in preparation process, can realize large-scale industrial production, and has a wide application prospect.

There is provided a speech synthesis device for creating a synthesized speech without significant lowering of voice quality. The speech synthesis device includes: a target speech piece information creation unit (102); a speech piece database (103); a speech piece selection unit (104); a voice quality specification unit (105); a voice quality conversion unit (106); a distortion judgment unit (108); and a target speech piece information correction unit (109). When a speech piece converted by the voice quality conversion unit (106) is judged to be distorted by the distortion judgment unit (108), the target speech piece information correction unit (109) converts the speech piece information created by the target speech piece information creation unit (102) into the speech piece information of the voice quality after the conversion and the speech piece selection unit (104) reselects a speech piece. Thus, without deteriorating the voice quality of the synthesized speech, it is possible to create a synthesized speech of the voice quality specified by the voice quality specification unit (105).