|
Match
|
Document |
Document Title |
|
|
7627187 |
Low complexity and unified transforms for video coding
A method and apparatus is disclosed herein for decoding data (e.g., video data) using transforms. In one embodiment, the decoding process comprises scaling a block of coefficients using a scaling...
|
|
|
7623719 |
Video encoding methods and devices
A video codec of a preferred embodiment is suitable for implementation on a variety of platforms, including platforms where devices require both encoding and decoding engines. Various features of...
|
|
|
7609902 |
Implementation of discrete cosine transformation and its inverse on programmable graphics processor
The discrete cosine transform (DCT) is mapped to a graphics processing unit (GPU) instead of a central processing unit (CPU). The DCT can be implemented using a shader-based process or a host-based...
|
|
|
7602973 |
Image processing apparatus, program, recording medium, and image editing method
An image processing apparatus includes a first image editing unit, an informing unit, a job supplying unit, and a second image editing unit. The first image editing unit edits a low resolution part...
|
|
|
7593584 |
Encoding device, encoding method, and program
An encoding device has a shape encoding unit and a pattern encoding unit. The shape encoding unit encodes a shape of an image element. The pattern encoding unit encodes a binary pattern of the...
|
|
|
7583844 |
Method, device, and system for processing of still images in the compressed domain
The present invention concerns the manipulation and especially the filtering of image data in the compressed domain. A method and a device is provided which allows for manipulating image data in...
|
|
|
7580565 |
Image processing apparatus and method
An image processing apparatus for converting image data between a raster format and a block format including an image data processor for providing the image data including a luminance component and...
|
|
|
7580578 |
Method and device for forming a compressed transcoded digital image signal
A compressed transcoded digital image signal is formed from a compressed original digital image signal having digital data organized in blocks. A data block in one of the compressed signals between...
|
|
|
7570817 |
Signal compression and decompression
A method of data compression, for example for image or audio signals, comprises encoding the data using a transform such as a wavelet transform or DCT, and transmitting only a predefined number of...
|
|
|
7570825 |
Method and device for determining a data configuration of a digital signal of an image
A method relates to the of determining a data configuration of a digital signal of an image, the signal having undergone at least one spatio-frequential transformation in at least one resolution...
|
|
|
7567722 |
Dynamically scaled file encoding
A dynamically scaled file encoding method and apparatus are disclosed. A file encoding system using JPEG encoding can be configured to produce relatively constant compressed file sizes irrespective...
|
|
|
7567721 |
Digital watermarking of low bit rate video
Methods for embedding digital watermarks in compressed video include perceptual adapting a digital watermark in predicted and non-predicted data based on block activity derived from the compressed...
|
|
|
7565022 |
Bit-plane formatting including zero bit-plane detection
A method and apparatus for accelerating the conversion and detecting image data in pixel format into bit-plane format and bit plane format to pixel format for JPEG2000 compression and decompression...
|
|
|
7565024 |
Run length coding and decoding
Embodiments of the invention provide a run length coding instruction for determining output context and decision values. Pixel coefficient bit values are used after wavelet transformation to...
|
|
|
7558431 |
Method and system for discrete cosine transforms/inverse discrete cosine transforms based on pipeline architecture
A method and system for applying pipeline architecture to discrete cosine transform and inverse discrete cosine transform. Each of the discrete cosine transform and inverse cosine transform are...
|
|
|
7551789 |
Reversible overlap operator for efficient lossless data compression
An efficient lapped transform is realized using pre- and post-filters (or reversible overlap operators) that are structured of unit determinant component matrices. The pre- and post-filters are...
|
|
|
7542617 |
Methods and apparatus for minimizing requantization error
Techniques and mechanisms for performing error minimizing requantization are provided. Quantized coefficients associated with a bitstream are received. It is determined whether the quantized...
|
|
|
7539355 |
Data transform method and apparatus
A data transform method comprises a linear transform step of acquiring 16 linear Hadamard transform coefficients by multiplying the 16 pieces of data by an Hadamard transform matrix, an offset step...
|
|
|
7532134 |
Systems and methods for sharing compression histories between multiple devices
Systems and methods of storing previously transmitted data and using it to reduce bandwidth usage and accelerate future communications are described. By using algorithms to identify long...
|
|
|
7529420 |
Method of displaying a thumbnail image, server computer, and client computer
A method of displaying a thumbnail image of the original image of a data file stored in a storage unit on a display unit includes: (a) storing in the storage unit a first compressed code relating...
|
|
|
7529417 |
Apparatus, method and storage medium for image encoding/decoding using shape-based coefficient interpolation
An image encoding/decoding apparatus is provided, including a frequency band division unit for dividing image data into a plurality of frequency bands to generate sub-band coefficients, a sub-band...
|
|
|
7526136 |
Faster transforms using early aborts and precision refinements
Fast transforms that use early aborts and precision refinements are disclosed. When to perform a corrective action is detected based upon testing the incremental calculations of transform...
|
|
|
7522775 |
Image coding and decoding methods, image coding and decoding apparatuses, and recording media for image coding and decoding programs
In an image coding method of the present invention, after a process such as DCT is performed to digital image data, quantization process is performed, and then, to resultant quantized transform...
|
|
|
7519229 |
Video coding system providing separate coding chains for dynamically selected small-size or full-size playback
Embodiments of the present invention provide a coding system that codes data according to a pair of coding chains. A first coding chain generates coded video data that can be decoded by itself to...
|
|
|
7515759 |
3D video coding using sub-sequences
A stereo-view image sequence is coded in an H.264-based sub-sequence coding by coding a first view of the stereo-view image sequence into a base layer of a sub-sequence coding. The second view of...
|
|
|
7508325 |
Matching pursuits subband coding of data
A method, system, and computer program product are used for coding multi-dimensional data using a codebook of basis functions. A transform is applied to the multi-dimensional data to create...
|
|
|
7502514 |
System and method for lossless compression of already compressed files
A system and method for losslessly compressing already compressed files, such as JPEG files. The inventive method involves full or partial decompression of the original file, and re-compression...
|
|
|
7492955 |
Method and apparatus for compression using reversible wavelet transforms and an embedded codestream
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...
|
|
|
7489826 |
Compensating for errors in performance sensitive transformations
The invention provides a method, a data analyzing system, an apparatus, and article of manufacture which reduce the error in transform equations in which constants are replaced by approximations....
|
|
|
7486297 |
Method and apparatus for image processing in a handheld device
The present invention provides a method and apparatus for image processing using a graphics processor in a handheld device including a first memory device receiving a video input signal containing...
|
|
|
7486829 |
Apparatus and method for image processing, and computer product
In an image processing apparatus, a pseudo tone processor performs a pseudo tone process by performing an area coverage modulation expression process with respect to M-bit image data, to thereby...
|
|
|
7477796 |
Method for preparing compressed image data file, image data compression device, and photographic device
A method for carrying out a step of extracting a portion of a predetermined size from the image data, and a step of preparing a predetermined number of compressed partial data compressed with...
|
|
|
7474767 |
Motion detection using multi-resolution image processing
Motion detection using sub-band image processing. A device has decompose logic that decomposes an input image into composite images that comprise different frequency bands of the input image. The...
|
|
|
7463782 |
Data encoding with an amplitude model and path between the data and corresponding decoding
A method of encoding a set of data representing physical quantities includes forming a path between the samples of the set, the path passing a maximum of once via each sample location. For two...
|
|
|
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...
|
|
|
7463777 |
Method for the scaling down of data
A method for the scaling down of data is provided. At least two blocks of transformed data samples representing at least two blocks of original data samples are received. One of at least two tables...
|
|
|
7454020 |
System and method for encrypting data in pictorial data
An encryption scheme that uses steganography includes an encryption algorithm that encrypts messages by embedding them in a data stream in such a way that an adversary cannot get information about...
|
|
|
7454071 |
System and method for using pattern vectors for video and image coding and decoding
An exemplary embodiment of the invention relates to a method of using pattern vectors for image coding and decoding. The method comprises converting a block of image data into a set of transform...
|
|
|
7450772 |
Compression of partially-masked image data
Wavelet coding of partially-masked image information may be made faster by either of two embodiments of the present invention. In a first embodiment, quick convergence is obtained by performing...
|
|
|
7444032 |
Demodulation and phase estimation of two-dimensional patterns
A method ( 100 ) of demodulating a real two-dimensional pattern ( 110 ) is disclosed. The method ( 100 ) estimates ( 120, 130 ) a quadrature two-dimensional pattern from the real two-dimensional...
|
|
|
7444029 |
Image predictive coding method
An image predictive coding apparatus and method, image predictive decoding apparatus and method, and recording medium for performing an image predictive coding method or the image predictive...
|
|
|
7440501 |
Method and apparatus for controlling loop filtering or post filtering in block based motion compensationed video coding
Adjacent blocks are identified in an image. Coding parameters for the adjacent blocks are identified. Deblock filtering between the identified adjacent blocks is skipped if the coding parameters...
|
|
|
7430326 |
Image encoding apparatus, method and program
An image encoding apparatus comprises an image input unit 12 for entering image data, a block split unit 14 for splitting the entered image data into a plurality of blocks, a block extractor...
|
|
|
7430332 |
Approximations used in performance sensitive transformations which contain sub-transforms
The present invention provides methods, apparatus and articles of manufacture for performing a transform equation in which at least two sub-transform equations can be identified. According to the...
|
|
|
7426310 |
Method and application of applying filters to N-dimensional signals and images in signal projection space
A Radon transform of the image(s) or array(s); and convolution of the Fourier transform of any 1D filter or mask, e.g., wavelet filters, with a 1D Ram-Lak, or other band-limited filter; convolution...
|
|
|
7424057 |
Data format transcoding apparatus and associated method
The present invention provides an apparatus for converting image data, including a block extraction unit extracts a class tap from a composite signal. A pixel-location-mode output unit determines a...
|
|
|
7421139 |
Reducing errors in performance sensitive transformations
The invention provides a method, data compression system, apparatus, and article of manufacture which reduce the error in transform equations in which constants are replaced by approximations....
|
|
|
7421134 |
Image processing apparatus and method for moving object-adaptive compression
An image processing apparatus is adapted to a surveillance camera system, and a CPU included in the surveillance camera system divides a plurality of continuous screens of an image signal into a...
|
|
|
7418142 |
Method for compression using reversible embedded wavelets
A method and apparatus for encoding and decoding data is described. The present invention includes a method and apparatus for generating transformed signals in response to input data. In one...
|
|
|
7412104 |
Optimized lossless data compression methods
A method for losslessly encoding and compressing and decoding original, raw, raster data, and other files by optimizing the results of preprocessing and transformation techniques. Four stages are...
|