120results about How to "Quick coding" patented technology

An in-camera two-stage compression implementation is described that reduces the latency between snapshots to a fraction of that otherwise required by other systems that either process complete compression following each snapshot or that incorporate heavy, bulky, and expensive RAM hardware capable of maintaining several raw luminosity records (unprocessed file containing a digital image). In the 1st stage compression the raw luminosity record is quickly, yet partially, compressed to available RAM buffer space to allow a user to expeditiously capture a succeeding image. When the higher-priority processes, the user shooting pictures, and stage one compression subside, a 2nd stage compression, which is slower but more effective, decompresses the earlier partially-compressed images, and re-compresses them for saving in flash memory until they are distributed to a remote platform to be finally converted to the JPEG2000 format.

An in-camera two-stage compression implementation is described that reduces the latency between snapshots to a fraction of that otherwise required by other systems that either process complete compression following each snapshot or that incorporate heavy, bulky, and expensive RAM hardware capable of maintaining several raw luminosity records (unprocessed file containing a digital image). In the 1st stage compression the raw luminosity record is quickly, yet partially, compressed to available RAM buffer space to allow a user to expeditiously capture a succeeding image. When the higher-priority processes, the user shooting pictures, and stage one compression subside, a 2nd stage compression, which is slower but more effective, decompresses the earlier partially-compressed images, and re-compresses them for saving in flash memory until they are distributed to a remote platform to be finally converted to the JPEG2000 format.

This invention disclosed a visual perception characteristics-combining hierarchical video coding method, comprising: setting priority of visual interest area and setting allocation scheme of video coding resource. The former one is about: due to the richness of video image and selective perception of human visual, visual characteristics saliency of video content has been analyzed from time and space, priority of visual interest area can be labeled. The later one is about improving real-time performance of video coding, while at the same time, quality of video coding and compression efficiency is guaranteed. According to the priority of visual interest area, macroblock coding resource of interest area should be satisfied firstly, to realize hierarchical coding. The video coding scheme of this paper can remit conflict between coding complexity and coding efficiency validly. Compare with H.264/AVC international video coding standard, it can improve 80% of average coding speed, and at the same time it can maintain better quality of video image and lower compression bit-Rate. The video coding performance can be improved dramatically.

The invention discloses a single-code-channel absolute position encoder which comprises a grating ruler, a CCD photoelectric detector, a lighting source and a photoelectric signal processing module. The grating ruler is a single-code-channel absolute grating ruler and is provided with a coding engraved rail. The lighting source is arranged below the grating ruler. A microscopic imaging lens set, the CCD photoelectric detector, the lighting source and the photoelectric signal processing module are sequentially arranged above the grating ruler from bottom to top. An absolute encoding code value on the single-code-channel absolute grating ruler is read based on the CCD photoelectric detector; absolute position information of the single-code-channel absolute grating ruler is calculated according to the encoding-decoding algorithm; subdivision of the output absolute position is achieved based on signal output of different pixels of the CCD photoelectric detector. System codes are adopted and can express more grades with shorter code words; in addition, according to features of multi-system codes, fast encoding and fast decoding of system codes can be achieved, and the problem that absolute grating length measurement is limited is solved.

The invention discloses a method for dividing and quickly encoding screen contents and natural contents. The encoding method comprises the following steps: distinguishing the natural contents and the screen contents of encoding units according to spatial correlation and statistical characteristics; performing quick mode selection on the natural content encoding unit through a flag bit flagskip formula; performing quick depth judgment on the natural content encoding unit through an optimal depth formula of the current encoding unit; and selecting a depth and a mode having the minimum RD price through a rate distortion optimization process to perform encoding. According to the method disclosed by the invention, the difference between the screen contents and the natural contents is fully considered, and unnecessary modes and depth traversal are conditionally skipped in combination with the own characteristics of the natural contents, thereby realizing quick encoding of the screen contents and shortening the overall encoding time.

The present invention utilizes a topology application programming interface (API) to provide relation information describing processor and platform topology to an executable program via a standardized interface. By providing topology information, the topology API allows the program to optimize its performance based upon the information without having to be explicitly aware of the actual platform architecture. The present invention also provides an expandable topology API that allows for future expansion of information type, without altering the standardized interface. In another instance of the present invention, the topology API collects, processes, and provides topology information about an underlying hardware architecture.

The invention relates to a rapid inter-frame transcoding method for reducing video resolution based on HEVC, and belongs to the technical field of video resolution. The rapid inter-frame transcoding method starts with analyzing CU partitions and the similarity of PU encoding modes of HEVC high-resolution video and corresponding low-resolution video, and determines the CU partition and a PU prediction mode of the corresponding low-resolution video at an HEVC encoder end through utilizing predicted information such as the CU partition and MV of the high-resolution video at an HEVC decoding end, so that the computational complexity of mode decision in an inter-frame transcoding process is reduced. By means of the rapid inter-frame transcoding method for reducing the video resolution based on the HEVC, the computational complexity of encoding can be greatly reduced under the situation that the bit rate and the video quality loss are very small, so that the encoding time is saved.

The present invention provides a dot data processing apparatus for generating data of dots to be formed on a printing medium. The apparatus includes: a decoding preparation unit that prepares a decoding table for pixel groups, each of the pixel groups grouping together a plurality of pixels that constitute a unit of dot formation, the table containing output dot arrangements and code values in a number of identifiers assigned to the pixel groups, the output dot arrangements and code values being associated, the output dot arrangements representing the dot on-off states for the pixels in the pixel groups, the code values assuming a prescribed range of values; a code value receiving unit that receives code values derived as a result of encoding of image data representing an image with a prescribed tone number, the encoding being performed for the each pixel group as an encoding unit; a decoding unit that acquires the output dot arrangement based on the received code value and the identifier assigned to the pixel group, by means of lookup in the decoding table; and a dot data output unit that outputs dot data which represents an arrangement of dots to be formed on a printing medium, in accordance with the acquired output dot arrangement.

The invention provides a processing method of an address code of a point of interest POI and a device thereof, which solve the problems that the artificial address coding efficiency in the prior art is low and cannot meet the address code of large data volume. The method includes steps of acquiring road data including a road name; according to a preset road classification rule, setting up a road type table corresponding to the road data; according to the road type, generating index information matched with the road data; through the road type table, the index information and a preset algorithm, coding a POI address, and acquiring the address code of the POI address. Through establishment of the road type table and the generation of the index information, the POI address is rapidly coded through continuous iteration treatment. The method and the device improve the processing efficiency of the address code and the accuracy of coding.

The invention provides a damaged two-dimensional code recognition method based on computational holography, and relates to the technical field of information storing and reproducing by using a grayscale hologram. The method comprises the steps that a computer is used to carry out hologram encoding on a generated two-dimensional code to convert the two-dimensional code into the grayscale hologram;the grayscale hologram is printed on one side of the two-dimensional code; when the original two-dimensional code is damaged, the grayscale hologram is used to assist recognition; when the two-dimensional code is damaged, a scanner with the decoding capability is used to scan the grayscale hologram on one side of the two-dimensional code; and the grayscale hologram containing the information of the two-dimensional code is decoded to acquire the information contained in the original two-dimensional code. The method provided by the invention has the advantages that a series of processes such asfast encoding and decoding are realized based on the current hardware level of computers and mobile phones; in view of the disadvantage that a damaged or dirty two-dimensional code is hard to be recognized in the prior art, the method combines the internationally widely used two-dimensional code and a computational holography technology; and even if the two-dimensional code is partially damaged, the product information can be read.

The invention relates to a construction method for a special structure protograph QC-LDPC code based on a Pascal's triangle, and belongs to the technical field of channel coding research. The method utilizes the Pascal's triangle to construct a matrix, and specifically comprises the following steps of constructing a weight matrix of the protograph, namely a base matrix Hbase; performing anticlockwise rotation by using the Pascal's triangle structure to acquire an S matrix; filling elements in the S matrix into the weight matrix Hbase of the protograph according to a rule to acquire a base matrix H of the protograph; extending the protograph base matrix H via a zero matrix and a unit matrix to acquire a check matrix, and providing a fast iterative coding algorithm of the codon according tothe structure of H. The base matrix has a quasi bidiagonal structure, avoids four rings and can achieve fast coding, is reduced in coding complexity, and has better iterative decoding performance without significant error floors.

In an image-encoding scheme, an input image is decomposed into several image blocks (600) comprising multiple image elements (610), e.g. pixels or texels. The image blocks (600) are then encoded into encoded block representations (700). Such a block representation (700) comprises a color codeword (710), an intensity codeword (720) and a sequence (730) of intensity representations. The color codeword (710) is a representation of the colors of the image elements (610) of the block (600). The intensity codeword (720) is a representation of a set of multiple intensity modifiers for modifying the intensity of the image elements (610) in the block (600). The representation sequence (730) includes an intensity representation for each image element (610) in the block (600), where a representation identifies one of intensity modifiers in the intensity modifier set. During decoding, the color and intensity codewords (710, 720) and intensity representations (730) are used to generate a decoded representation of the image elements (610) in the block (600).

The invention discloses a full-automatic ink-jet printer, and the ink-jet printer comprises a rack, an ink-jet printing mechanism, and a feeding mechanism. The ink-jet printing mechanism and the feeding mechanism are disposed at the upper end of the rack, and the ink-jet printing mechanism is provided with an X-axis guide rail which is arranged in the X-axis direction. The upper end of the X-axis guide rail is provided with a Y-axis guide rail which is arranged in the Y-axis direction, and the upper end of the Y-axis guide rail is provided with a Z-axis guide rail which is arranged in the Z-axis direction, wherein the upper end of the Z-axis guide rail is provided with an ink-jet printing device. The feeding mechanism is provided with a feeding guide rail which is arranged in the Y-axis direction. The feeding guide rail is disposed on a guide rail adjustment device which is arranged in the X-axis direction and is fixed on the rack. The ink-jet printer is novel in design, is simple in structure, achieves safe, accurate, quick and all-around spraying on a PCB, can randomly adjust the shape and size of a character, can carry out spraying in a shape like a Chinese character Mi, can achieve on-line testing, and irons out defects in various conventional technologies of manual spraying.

The invention provides a distributed wireless meteorological encoding monitoring method, a device and a system, and relates to the technical field of meteorological monitoring. Meteorological data can be transmitted effectively in a severe meteorological environment, and the transmission efficiency is improved. The distributed wireless meteorological encoding monitoring method comprises the steps that sensor nodes perform RS (Remote Sensing) encoding encryption on the acquired meteorological data by an FPGA (Field Programmable Gate Array) chip; the encrypted meteorological data is transmitted to a monitoring station computer in a wireless manner; and the monitoring station computer is used for receiving the encrypted meteorological data, decoding the encrypted meteorological data, then performs data preprocessing and storage, and sending the data to a meteorological data center by the Ethernet. The distributed wireless meteorological encoding monitoring method is mainly used for a distributed meteorological automatic monitoring system.

The invention provides a rapid affine motion estimation method for H.266/VVC, and the method comprises the steps: calculating the texture complexity of a current CU through adoption of a standard deviation, and dividing the current CU into a static region or a non-static region according to the texture complexity; for the CU of the static region, skipping affine motion estimation, directly utilizing motion estimation to predict the current CU, and selecting an optimal prediction direction mode through adoption of a rate distortion optimization method; and for the CU in the non-static region, classifying the current CU by using the trained random forest classifier RFC model, and outputting an optimal prediction direction mode. For a CU in the static region, affine motion estimation is skipped, and the calculation complexity is reduced; for a CU in the non-static region, prediction of a prediction direction mode is directly carried out through a model trained in advance, calculation of affine motion estimation is avoided, and therefore the complexity of an affine motion estimation module is reduced.

The invention provides a video coding system and a video coding method employing the video coding system. The video coding system comprises a first encoder which is connected with an external video source, reads in video frames, encodes the video frames according assigned coding standards and outputs a first code stream, a decoder which is connected with the first encoder, decodes the first code stream, and extracts and stores video coding referential information from the decoding result, wherein the video coding referential information includes video information, and a second encoder which is connected with the external video source and the decoder, reads in video frames and video coding referential information, encodes the video frames according assigned coding standards and the video coding referential information and outputs a second code stream. Rapid and effective coding is achieved, and the system and the method also have the advantages of low computational complexity and high expandability.

A method and apparatus are provided for coding a signal from images, the images being split into sub-blocks of pixels. The method includes grouping at least two sub-blocks into at least one block of larger size, when the sub-blocks comply with at least one predetermined grouping criterion. A prediction is performed by applying at least one mode of motion prediction using at least two distinct motion prediction vectors, for at least one block of larger size, the motion prediction vectors being associated respectively with sub-sets of the block of larger size, comprising at least one of the sub-blocks of the block of larger size. The sub-sets are predefined and distinct.

The invention discloses a digital garment template management system, which comprises a user type selection assembly and a function assembly, wherein the function assembly is associated with a user type and comprises a template management module, the template management module comprises a storage module, an encoding module, a retrieval module and an invoking module, the storage module is used for storing garment template style information and CAD (computer aided design) pictures, the encoding module is used for carrying out digital encoding on the garment template style information in the storage module, and each code is used as the unique identification corresponding to each template and is stored in the storage module, the retrieval module is used for retrieving the corresponding garment template according to the garment template codes or the style information, and the invoking module is used for invoking CAD software of the garment template retrieved by the retrieval module for realizing the opening and the modification of the CAD picture. The digital garment template management system has the advantages that the garment template can be effectively and fast subjected to encoding, storage, retrieval and CAD invoking, and the work efficiency is improved.

The invention discloses a machine tool manufacturing BOM storage query and tree structure construction method based on an MES system. The method comprises the steps: constructing a manufacturing BOM storage structure; setting a cache data structure to search part material numbers; setting a BOM reverse query process data structure, and searching part numbers through a coding rule for subsequent manufacturing BOM search; respectively searching for a first-level component manufacturing BOM and a multi-level component manufacturing BOM, removing same-level repeated data and non-same-level repeated data, and searching for the components; searching a machine tool manufacturing BOM directly containing a specific part and a machine tool manufacturing BOM containing a group part, removing the same-level repeated data, removing the non-same-level repeated data, and searching to obtain machine tool manufacturing BOM data; according to the method, building a tree structure according to machine tool manufacturing BOM data, providing a basis for subsequent material updating and correcting on a production site, and achieving BOM reverse checking on the production site; and performing result display on the tree structure through an MES system. According to the invention, the workload is reduced, the query efficiency is improved, fast storage, fast taking and fast updating are achieved, and the query speed is increased.