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8897586 Dynamic generation of a quantization matrix for compression of a digital object  
Some aspects of the disclosure relate to a compression technique that can permit determining dynamically a satisfactory quantization matrix based at least on properties intrinsic to a digital...
8837006 Pre-processing of image data for enhanced compression  
Embodiments herein provide for a pre-processing stage or mechanism for enhancing data compression of an image by splitting or separating the color channels for pixels into planar data sources....
8644626 Method for storing and processing image sequence and method for compressing, storing and processing image sequence  
The present invention relates to a method for storing an image sequence and a method for compressing, storing an image sequence. The method for storing an image sequence comprises the following...
8264715 Approach for implementing locked printing with remote unlock on printing devices  
An approach is provided for implementing locked printing on a printing device with remote unlock. The printing device includes a locked print process that is configured to examine print data...
8243340 Pre-processing of image data for enhanced compression  
Embodiments herein provide for a pre-processing stage or mechanism for enhancing data compression of an image by splitting or separating the color channels for pixels into planar data sources....
8184633 Automated interoperability assessments based on iterative profling and emulation of SIP or T.38 fax-relay enabled devices  
A system for and method of efficient interoperability assessment based on automated Behavioral Profiling and Emulation of SIP or T.38 Fax-relay Enabled Devices, for example, for profiling and...
8171169 Method and apparatus for updating a graphical display in a distributed processing environment  
A system and method for updating a display unit remotely located from a computing system are described. The method includes copying display information from a video buffer of a computing device...
8165198 Apparatus and method for performing video decoding processes in parallel  
An apparatus and a method for performing video decoding processes in parallel are provided. The method is adapted for utilizing a first cluster and a second cluster of a processor to perform the...
8135226 Image encoder, image encoding method, image decoder, and image decoding method  
In an image encoder, a first quantization section which is selected when normal image quality is required performs quantization by dividing a wavelet transformation coefficient by a quantization...
7974480 Universal fixed-pixel-size ISP scheme  
An Image Signal Processing unit (ISP) has at least one fixed-size line buffer which is smaller than the width of the image buffer. To handle the image data, the image buffer is divided into...
7787698 Sign coding and decoding  
Embodiments of the invention provide an instruction that computes the horizontal and vertical values (H,V) based upon the predefined equations. Based upon the horizontal and vertical values (H,V)...
7756051 Content distribution using network coding  
A content distribution mechanism that relies on cooperative desktop PCs to distribute content is disclosed. The mechanism distributes content in a robust manner by allowing at least one...
7738722 Technique for adaptive de-blocking of block-based film grain patterns  
Reduction in the blockiness of a simulated film grain block can be achieved either by the use of adaptive downscaling or adaptive deblocking filtering to adjust the intensity of the pixels at the...
7684088 Method for preventing counterfeiting or alteration of a printed or engraved surface  
The invention describes a process to prevent counterfeiting or alteration of a printed or engraved surface, characterized by the incorporation of a signature of the form of a digital mark into...
7657108 Encoding of digital data combining a plurality of encoding modes  
A method of encoding a set of data representing physical quantities includes the steps of dividing the set of data into subsets, calculating a first encoding cost for each subset using a first...
7602974 Universal fixed-pixel-size ISP scheme  
An Image Signal Processing unit (ISP) has at least one fixed-size line buffer which is smaller than the width of the image buffer. To handle the image data, the image buffer is divided into...
7468803 Image processing apparatus and image processing method  
Provided are an image processing apparatus and image processing method capable of processing image data as packet data, and compressing the image data in real time to a data amount within the...
7463780 Image encoder, image encoding method, image decoder, and image decoding method  
In an image encoder, a first quantization section which is selected when normal image quality is required performs quantization by dividing a wavelet transformation coefficient by a quantization...
7450774 Method of changing bit rate by changing codeword of compressed image bit stream  
An apparatus and a method of changing a bit rate of a compressed image bit stream by changing a codeword so as to easily change the bit rate and reduce a changing loss. The apparatus for changing...
7433531 Image pickup apparatus and method  
The present invention relates to an image capturing apparatus and method in which the image recording time is reduced and the memory capacity required for compression is also reduced. A...
7376280 Video encoding and decoding  
A method for encoding video with a two-dimensional (2D) transform separable to two one-dimensional (1D) transforms. The method receives an array of values for a sub-section of an image, performs a...
7372600 Color facsimile device with data recompressing capability  
JPEG data is efficiently recompressed and transmitted to a remote color facsimile device. Before transmission of recompressed JPEG data, an anticipated transmission time is displayed for enabling...
7302107 JPEG encoding for document images using pixel classification  
The invention provides a system and method for JPEG encoding an image that includes variable quantization for each block, depending upon the classification of each block, which is dependent on the...
7206098 Method for avoiding print buffer underrun  
In order to avoid print buffer under-run a printing method involves a printer printing a rendered first page of print data while another page is rendered in a connected computer. Simultaneously, a...
7171045 System and method for determining a natural color depth of a digital image  
A system and method for determining a natural color depth of a digital image is described. Color distances between each pair of colors in a color palette stored for a digital color image are...
7145696 Print data compression method and printer driver  
A printer driver software product is provided for execution by a computer to produce compressed page data corresponding to a page layout. The driver includes instructions to generate...
7099040 Method for enabling a client to specify the characteristics of an image to be downloaded from a server  
A method for serving an image from a server to a client, e.g., a computer having a browser or other graphics viewing engine. The user of the client first specifies a set of one or more bitmap...
7068398 System and method for efficient tile generation from complex raster data  
A system and method for accepting raster data from a Postscript or equivalent image data generator, identifying portions of the raster image which contain continuous tone data and linework data,...
7065252 System and method providing improved data compression via wavelet coefficient encoding  
A data compression system is provided in accordance with the present invention. The system includes a scanning component which scans at least a portion of a transformed image. The scan is...
7062088 Variable lossy compression  
Methods and apparatus for generating a compressed image from a source image by compressing the source image using a dictionary based lossy compression algorithm that regionally varies the amount...
6992788 Image processing apparatus and method, and storage medium  
The present invention efficiently compresses image data, and stores and manages the compressed data. Image data is compressed in tile unit having predetermined pixels and data packing is...
6985635 System and method for providing a single-layer video encoded bitstreams suitable for reduced-complexity decoding  
A method and system of reducing the computation load of an MPEG decoder by changing the encoding algorithms in a video-processing system are provided. During an encoding mode, a stream of data...
6961475 Context model access to memory based on run and skip counts and context model skipping  
A method and apparatus for coding and decoding information is described. In one embodiment, the apparatus comprises a memory and decoding hardware. The memory stores run counts and/or skip counts...
6934420 Wave image compression  
A method of image compression comprises the steps of recursively transforming a image using a Discrete Wavelet Transform. This creates a plurality of levels including at least a first level,...
6792157 Image encoding apparatus and quantization characteristics determining apparatus  
Images are to be efficiently and easily encoded while suppressing block distortion and pseudo-contour generation. A quantization characteristics determining unit receives pixel values from a pixel...
6778709 Embedded block coding with optimized truncation  
A multi-layer embedded bitstream is generated from a subband decomposition by partitioning each subband of the decomposition into a plurality of blocks; and encoding the blocks of each subband....
6738522 Efficient SIMD quantization method  
A method of quantizing multiple input values in parallel using SIMD instructions is disclosed. In one embodiment, the method comprises (1) receiving a set of input values Xi; (2) operating on the...
6738528 Block noise detector and block noise eliminator  
A vertical HPF and a horizontal HPF receive a video signal 101, and extract only a high frequency component in the vertical/horizontal directions, respectively. Absolute value taking parts take an...
6583887 Method and apparatus for data compression  
Compression apparatus is described that operates to select an optimum compression procedure to apply to received image data. The compression apparatus can be employed in a page printer having a...
6222943 Image reading, processing and recording with quick data compression  
There is disclosed an image processing apparatus in which variable-length compression is performed, e.g. by orthogonally transforming input image data in units of frames, and quantizing the...
6198850 System and method for segmentation dependent lossy and lossless compression for higher quality  
A method and system takes advantage of both lossy and lossless compression techniques to increase processing speed and efficiency, and to decrease required image storage space. In the system and...
5978508 Two-dimensional inverse discrete cosine transformation circuit for MPEG2 video decoder  
A two-dimensional inverse discrete cosine transformation circuit of an MPEG2 video decoder including a one-dimensional inverse discrete cosine transformation circuit, an input switching circuit...
5933537 Method and apparatus for conversion of frequency-coefficient matrices  
A method and apparatus are disclosed for converting frequency-coefficient matrices between a configuration in which the matrices are transforms of unoverlapped image-data matrices and a...
5923787 Quantization device and method, inverse-quantization device and method, and image processing device and method  
A quantization device includes a multiplying unit for multiplying one of n×n values of quantization matrix information by a selected scale factor so as to provide quantization basis...
5905815 Decoding encoded image signals encoded by further transforming transformed DC signals  
Image signals are encoded following a spatial decomposition pattern that is based on a selected location within the image. The resulting sequence of sets of encoded image signals may be...
5886794 Picture encoding apparatus  
A picture encoding apparatus and the method in which the quantization step width of the lower hierarchy data having a resolution higher than that of the upper hierarchy data is determined for each...
5850294 Method and apparatus for post-processing images  
The invention is an image transmitting method and system including receiving encoded images, decoding those images and post-processing the decoded images. The post-processing reduces visual...
5768437 Fractal coding of data  
A method of fractal coding of data and apparatus therefor, which method comprises dividing data into domains, determining a set of transformations relating the domains to the data in such a manner...
5745607 Image encoding apparatus and method for generating and encoding reduced image data by bit planes  
Binary color image data outputted by a color scanner is stored in three buffers for respective ones of the color components red, blue and green. First the red data in one buffer is selected by a...
5724453 Image compression system and method having optimized quantization tables  
A digital image compression preprocessor for use in a discrete cosine transform-based digital image compression device is provided. The preprocessor includes a gathering mechanism for determining...

Matches 1 - 50 out of 68 1 2 >