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7076105 |
Circuit and method for performing a two-dimensional transform during the processing of an image
An image decoder performs a 2-D transform as a series of 1-D transforms, and does so in a more efficient manner than prior decoders. The decoder includes a memory and a processor coupled to the...
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7076103 |
Method, apparatus, and program for image data compression
When image data are compressed, a degree of image quality degradation can be recognized. At the time of compressing the image data, compression information is added as tag information in a file...
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7076104 |
Compression and decompression with wavelet style and binary style including quantization by device-dependent parser
A compression and decompression system in which a reversible wavelet filter are used to generates coefficients from input data, such as image data. The reversible wavelet filter is an efficient...
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7075993 |
Correction system and method for enhancing digital video
A system and methodology assesses whether an error correction should be applied to detected blocks based on determined correction application criteria, and, if warranted according to the...
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7075557 |
Method of and apparatus for handling high bandwidth on-screen-display graphics data over a distributed IEEE 1394 network utilizing an isochronous data transmission format
On-screen-display graphics data is transmitted from a source device to a display device over an IEEE 1394-1995 serial bus network utilizing an isochronous data format. The on-screen-display...
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7072517 |
Inverse discrete wavelet transforms for data decompression
A method inverse discrete wavelet transforms subband data in segments and maintains a state between segments. The method selects one of a plurality of different computational procedures for...
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7072520 |
Method and apparatus for selecting layers for quantization based on sideband information
A method and apparatus for selecting layers for quantization based on sideband information is described. In one embodiment, the method comprises receiving a codestream of compressed image data...
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7072512 |
Segmentation of digital video and images into continuous tone and palettized regions
For encoding of mixed-content images containing palettized and continuous-tone content, continuous tone content regions in the image are detected and separated. Continuous tone content segmentation...
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7072519 |
Image coding device and method thereof and image decoding device and method thereof
A predetermined area of input image data ( 100 ) is read and stored into a memory section ( 1 ). As soon as data is stored in the data read memory section ( 1 ), wavelet conversion filtering is...
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7068850 |
Decoding of predicted DC coefficient without division
A technique for eliminating the division in decoding a predicted DC coefficient includes calculating and storing the values of 1//DC_scalar in a table. This allows one to convert a division into a...
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7068722 |
Content adaptive video processor using motion compensation
A system and method for providing a method for reducing artifacts in a video sequence of image frames is disclosed. The method and system include classifying scenes in the sequence of image frames,...
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7068847 |
High-resolution still picture decoding device
A high-resolution still picture decoding device is disclosed, which has a memory device, an image decoder, and a decoding controller. The memory device has a bit-stream buffer, a frame buffer and a...
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7065140 |
Method and apparatus for receiving video signals from a plurality of video cameras
A method and apparatus for receiving video signals from a plurality of video cameras, such as in a video surveillance system. The video cameras are each coupled to provide a video signal to a...
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7061980 |
Method of describing object region data, apparatus for generating object region data, video processing method, and video processing apparatus
An object-region-data describing method for describing object region data relating to a time-series variation of an object region in video data including a plurality of frames, the method...
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7062096 |
Apparatus and method for performing bitplane coding with reordering in a fine granularity scalability coding system
An apparatus and method for performing bitplane coding with reordering, that may be used in a Fine Granularity Scalability (FGS) system. The apparatus and method reorder coefficients each time...
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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 of...
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7054495 |
Image data coding and/or decoding system capable of high-efficient coding
An image data coding system comprises a screen-area determining means for determining the area of a screen reproduced on the basis of an input image data; a code-amount assigning control means for...
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7054366 |
Systems and methods for MPEG subsample decoding
A decoder decimates MPEG or other video data by subsampling the output of an inverse discrete cosine transform (IDCT) module. The decimation process is useful for reducing the volume of data that...
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7054500 |
Video compression and decompression system with postfilter to filter coding artifacts
A video compression and decompression system has an input to receive an encoded video sequence and an output for a decoded video sequence. A video decoder is coupled to the input and decode the...
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7054494 |
Coded block pattern decoding with spatial prediction
The coded block parameters used to code blocks of image samples into structures called macroblocks are compressed more efficiently by exploiting the correlation between chrominance and luminance...
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7050641 |
Method of providing extension to a signal and apparatus therefor
An sequence of data samples X[n] is point symmetrically extended to provide an extended sequence of samples x[n]. The points of symmetry ( 25 ) can be at the ends ( 17, 19 ) of the sequence (as in...
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7046819 |
Encoded reference signal for digital watermarks
This disclosure describes a method for encoding a digital watermark into an image signal that is robust to geometric distortion. The digital watermark is adapted to the host image signal in which...
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7046853 |
Efficient decoding method and apparatus for gradually coded images
Coded image data which are coded hierarchically are decoded successively by an inverse wavelet transformer. During a process of decoding, images of intermediate hierarchy are stored in a frame...
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7046852 |
Fast image decompression via look up table
A system to decode compressed digital images coded with frequently occurring variable length or other symbols. The disclosed system extracts one or more symbols from the coded compressed image and...
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7043087 |
Image processing system
An image processing system including an image encoder and image decoding system is provided. The image encoder system includes an image decomposer, a block encoder, and an encoded image composer....
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7043088 |
Adaptive variable length decoding method
A method is disclosed for decoding multiple-coded symbols from a coded input symbol stream in a single clock cycle. The method constructs an original Huffman look-up table by extending the...
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7042947 |
Decoding apparatus and method, and storage medium storing decoding processing program of the same
This invention is to provide a decoding apparatus/method in which a bitstream obtained by coding a plurality of object data in units of objects and multiplexing the coded data is input, coded data...
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7039245 |
Processing of digital picture data in a decoder
A decoder for a digital audiovisual transmission system, the decoder comprising a processor means for decompressing and displaying compressed still picture data and a memory ( 66, 67 )...
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7039244 |
Fixed-rate block based image compression
An image processing system including an image encoder and image decoding system is provided. The image encoder system includes an image decomposer, a block encoder, and an encoded image composer....
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7035470 |
System for handling errors related to IDCT data and method thereof
A system and method for handling errors is provided. Errors related to the processing and storage of inverse discrete cosine transform (IDCT) image data cause hardware to become stalled. Stalled...
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7035332 |
DCT/IDCT with minimum multiplication
A method, apparatus, computer medium, and other embodiments for discrete cosine transform and inverse discrete cosine transform (DCT/IDCT) of image signals are described. A DCT/IDCT module includes...
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7035469 |
Image processing
A device, and associated method for image processing. An image area is divided into a plurality of image data blocks. Each of the image data blocks is compressed and stored in a data storage....
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7035471 |
Data processing device and data processing method and recorded medium
JPEG encoded data are entropy-decoded to quantized DCT coefficients which are sent to a prediction tap extraction circuit ( 41 ) and to a class tap extraction circuit ( 42 ). The prediction tap...
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7031534 |
Enhancement of compressed image data
A xerographic apparatus, a printer, a printer server, and the like processes wavelet domain image data and includes means for receiving the wavelet domain image data representative of an input...
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7031557 |
Structure capable of reducing the amount of transferred digital image data of a digital display
A structure capable of reducing the amount of transferred digital image data of a digital display has a digital image and timing control unit for controlling the receiving and transfer of image...
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7031404 |
Inverse DWT method and apparatus
A method for performing an Inverse Discrete Wavelet Transform is disclosed. The method comprises inverse transforming, using filters ( 706–710 ) having specified filter widths, data from...
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7027628 |
Automated microscopic image acquisition, compositing, and display
An automated microscope and computer system captures a set of images for a capture area in a plurality of focal planes. The images can then be integrated into composite images for browsing to...
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7020340 |
Methods for compressing and decompressing data
In methods for compressing data, when differences between two adjacent data among a series of N data, where N is a positive integer, are all less than a reference value, delta data values are...
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7020335 |
Methods and apparatus for object recognition and compression
Apparatus and methods are provided for object recognition and compression. The apparatus ( 114 ) comprises an object processor ( 402 ) configured to receive the image ( 120 ) and synthesize a...
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7020202 |
Systems for MPEG subsample decoding
Decimating MPEG or other video data by subsampling the output of an inverse discrete cosine transform (IDCT) module. The decimation process is useful for reducing the volume of data that must be...
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7020192 |
Method of retrieving video picture and apparatus therefor
An apparatus for retrieving a video picture includes a decoder section for decoding a coded bit stream of video picture data representing an arbitrary shape object and including shape information...
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7020194 |
Apparatus and method for vector descriptor representation and multimedia data retrieval
The present invention relates to an apparatus and a method for vector descriptor representation and multimedia data retrieval, which can quantize a plurality of feature values described by a vector...
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7016544 |
Digital image encoding and decoding method and digital image encoding and decoding device using the same
A method for decoding a bitstream data obtained by encoding a target image comprises the steps of:
(a) extracting from the bitstream data, coordinates point date indicating frame coordinates...
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7016543 |
Method for providing a terminal with coded still image signals, communications system, network element and module
The invention relates to a method for providing a terminal MS 2 of a communications system with coded still image signals. In order to enable a further content adaptation for multimedia messages,...
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7016547 |
Adaptive entropy encoding/decoding for screen capture content
Adaptive entropy encoding and decoding techniques are described. For example, a screen capture encoder and decoder perform adaptive entropy encoding and decoding of palettized screen capture...
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7012960 |
Method of transcoding and transcoding device with embedded filters
The present invention relates to a method of transcoding ( 200 ) a primary encoded signal (S 1 ) into a secondary encoded signal (S 2 ). Said transcoding method comprising at least a step of...
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7010144 |
Associating data with images in imaging systems
A steganographic embedder associates data with an image by encoding the data, a link to the data, or a combination of both into the image. The embedder may be located in an image capture device or...
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7006153 |
Image composition method, and image composition apparatus
An image composition apparatus includes a composition processing unit comprising a composition position determination unit for receiving a shape signal and an image signal which are outputted from...
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7003165 |
Image processor and image processing method for decompressing progressive-coded compressed image data
The image processor of the present invention includes: an extracting means, an entropy decoding means, a combining means, and an inverse orthogonal transformation means. Coded data at respective...
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6996278 |
Coding and decoding method and device on multi-level image
A coding and decoding method includes the step of a) classifying an input multi-level image into edge parts and non-edge parts according to edge degree thereof; b) coding the input multi-level...
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