|
Match
|
Document |
Document Title |
|
|
7072492 |
Method and apparatus for digital watermarking
A method for embedding digital watermark data in digital data contents includes the steps of obtaining a frequency coefficient of block data of digital data contents, obtaining a complexity of the...
|
|
|
7065139 |
Video encoding method and video encoder for improving performance
Video encoding methods and video encoders that provide improved performance while reducing power consumption. In one aspect, a video encoding method comprises the steps of outputting a parameter...
|
|
|
7062102 |
Apparatus for re-coding an image signal
An apparatus for re-coding an image signal, which conducts re-coding processing using a decoded image signal subjected to coding processing as an input image signal, includes: a DCT unit for...
|
|
|
7058230 |
Method and apparatus for encoding image data, and computer-readable recording medium in which program for encoding image data is recorded
An accurate encoding of image data representing a source image, which data is divided into a multiplicity of blocks is performed in accordance with features of the source image by defining a...
|
|
|
7055034 |
Method and apparatus for robust embedded data
This invention describes a method and apparatus for the increasing the robustness of embedded data. Since many times embedded data is susceptible to removal by an unauthorized person, one preferred...
|
|
|
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...
|
|
|
7050645 |
Image processing apparatus and image processing method
The image processing apparatus transforms orthogonal transform coefficients into a predetermined number of bits for each spatial frequency, rearranges quantized data for each spatial frequency to...
|
|
|
7050656 |
Image scaling in the compressed domain
An efficient compressed-domain-based algorithm that works by combining the IDCT and pixel-domain averaging into a single compressed domain operation, where a part of the cost of even this...
|
|
|
7046855 |
Method and apparatus for performing spatial-to-frequency domain transform
In some embodiments of the present invention, quantized frequency coefficients of a matrix of spatial data are obtained. Blocks of frequency coefficients that will be zero-valued after quantization...
|
|
|
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...
|
|
|
7039230 |
Method for compressing an image by using characteristic values
The present invention relates to a method compressing image data, more particularly to a method for compressing image data by using characteristic values. At first, input image data are executed by...
|
|
|
7039243 |
Spectral encoding of information
A data encoding scheme maps a set of data to a number of spectral components, each component having an amplitude, a phase and a unique frequency. From these mapped tones, an analog baseband signal...
|
|
|
7039250 |
Electronic camera and image processing program
The invention provides a technique for compression processing according to JPEG 2000 or the like in an electronic camera that evaluates the quality of each of image data groups taken sequentially...
|
|
|
7035474 |
System and method for recompressing a digital image using requantization
A system and method for recompressing a JPEG image using requantization is described. DCT transform coefficients for a compressed JPEG image are statistically analyzed to generate a stored numeric...
|
|
|
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...
|
|
|
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...
|
|
|
7031531 |
Image encoding device and method therefor, image decoding apparatus and method therefor, and computer-readable recorded medium on which image encoding program and image decoding program are recorded
An image coding apparatus corresponding to a standard scheme of binary image compression and having the compression efficiency of a gray scale image improved includes: a bit plane generator ( 303 )...
|
|
|
7031546 |
Noise reduction method, noise reducing apparatus, medium, medium and program
A noise reduction apparatus in accordance with the present invention is configured to reduce mosquito noise while retaining edges by calculating the maximum value Y of the difference values of...
|
|
|
7027646 |
Scaled image generating apparatus and method, image feature calculating apparatus and method, computer programs therefor, and image data structure
An apparatus for generating a scaled image divides an image, which comprises a plurality of pixels, into a plurality of blocks by partitioning the image vertically and horizontally, whereby the...
|
|
|
7027611 |
Controlling a watermark strength embedded into a digital image
On embedding a watermark in a stream of digital images, a watermark strength is automatically varied in accordance with an amount of the digital images by detecting the amount of the digital images...
|
|
|
7020342 |
Scalable coding
The invention proposes a method of and a device for coding a signal (S) to obtain a scalable bit-stream (O). The signal (S) comprises blocks of values. Each block is represented ( 20 ) as a...
|
|
|
7020285 |
Stealthy audio watermarking
Described herein is technology for inserting and detecting watermarks in signals, such as a music clip. In one described implementation, a watermarking system employs chess spread-spectrum...
|
|
|
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...
|
|
|
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,...
|
|
|
7012749 |
Optical processing
A method of performing a DFT (discrete Fourier transform) or a DFT derived transform on data, comprising: providing spatially modulated light having spatial coherence, said spatially modulated...
|
|
|
7006703 |
Content recognizer via probabilistic mirror distribution
An implementation of a technology, described herein, for facilitating the recognition of content of digital goods. At least one implementation, described herein, derives a probabilistic mirror...
|
|
|
7006689 |
Image search system and image search method thereof
An image search system for determining a similarity of an image whose feature are represented by either one of image features amounts, a color distribution features or a frequency distribution...
|
|
|
6999515 |
Encoding block-organized data
An information stream organized as a sequence of blocks is encoded according to a graceful degradation principle. The stream poses temporal non-uniform data processing requirements. In particular,...
|
|
|
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 performed....
|
|
|
6990506 |
Integer cosine transform matrix for picture coding
An integer transform matrix is used for implementing a Discrete Cosine Transform (DCT). Optimized values for the integer transform matrix are derived that satisfy certain normalization constraints...
|
|
|
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...
|
|
|
6985590 |
Electronic watermarking method and apparatus for compressed audio data, and system therefor
The present invention provides a method and a system with which information embedded in compressed digital audio data can be directly operated. An embodiment of the system for embedding additional...
|
|
|
6965647 |
Robust time domain block decoding
A method for robust time domain block decoding is disclosed. In one embodiment, the method includes receiving a block of transform domain coefficients, detecting errors in one or more transform...
|
|
|
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...
|
|
|
6956511 |
Multi-symbol/coefficient decode operation for Huffman codes
Method and apparatus for use in Huffman decoding are described. In exemplary systems, a JPEG Huffman decoder is capable of simultaneously decoding multiple coefficients and/or symbols in a single...
|
|
|
6944314 |
DIGITAL INFORMATION EMBEDDING DEVICE EMBEDDING DIGITAL WATERMARK INFORMATION IN EXACT DIGITAL CONTENT, COMPUTER-READABLE RECORDING MEDIUM HAVING DIGITAL INFORMATION EMBEDDING PROGRAM RECORDED THEREIN, AND METHOD OF EMBEDDING DIGITAL INFORMATION
To dynamically embed information with a digital content taken into account a digital information embedding device includes an input block receiving an image, a feature value parsing block detecting...
|
|
|
6937768 |
Apparatus and method for encoding/decoding image frame
An apparatus and a method of encoding/decoding an input image frame in an image data processing system are disclosed. Using the apparatus and the method of the present invention, a total memory...
|
|
|
6931159 |
Size reduction method and device for compressed images
A method and device for reducing a compressed image to a target size by reducing the quality of the image by a quality scaling factor. Image statistics inherent to the image are used to compute the...
|
|
|
6930689 |
Hardware extensions for image and video processing
A processing device ( 200 ) includes three hardware extensions: a motion estimation extension 202 , a pixel interpolation extension 204 and a DCT/iDCT extension 206 . The hardware extensions...
|
|
|
6928186 |
Semantic downscaling and cropping (SEDOC) of digital images
A compressed-domain-based algorithm reduces a source image to a given target size using a combination of downscaling, cropping, and region-of-interest identification. The source image is...
|
|
|
6928112 |
Signal coding method, signal coding apparatus, signal recording medium, and signal transmission method
The present invention enables to effectively coding a predetermined time length of a video signal with a variable bit rate at real time (one-path) into a total coding bit amount of a constant data...
|
|
|
6904151 |
Method for the estimation and recovering of general affine transform
The present invention relates to the methods of estimation and recovering of general affine geometrical transformations which were applied to data, extensible to any other defined class of...
|
|
|
6898326 |
Image processing apparatus and method
A transformation unit 102 transforms an entered image to multi-resolution space. A quantizer 105 performs vector quantization on a local pattern of an image of a multi-resolution...
|
|
|
6898310 |
Image signal processing method, image signal processing system, storage medium, and image sensing apparatus
An image signal processing method and system, which can greatly reduce the data size upon transmitting an image signal or storing the signal in a storage medium, and can obtain a high-quality image...
|
|
|
6895122 |
Method and system for determining DCT block boundaries
The horizontal and vertical offset for the M×N DCT block boundaries are determined for a decompressed image originally produced by a DCT-based compression system, regardless of the amount of...
|
|
|
6891644 |
Image processing device and image processing method
An image processing system provided with a line sensor for reading image signals in line units. First, the line sensor scans a document in a normal direction. At this time the image data obtained...
|
|
|
6885702 |
Method for spatial synchronization of a digitally coded video image and/or for identification of the syntax of a video sequence
The invention concerns a method for synchronising a video image (IM) spatial position to find the position of an initial digital coding grid (GI), by said image (IM) coding blocks, characterised in...
|
|
|
6882752 |
Image compression and expansion apparatus and pixel number increasing apparatus
An image compression and expansion apparatus reproduces an expanded image corresponding to an original image from a reduced image. The original image data is comprised of approximately 1000×600...
|
|
|
6882753 |
Adaptive quantization using code length in image compression
A method is adapted for compressing an image data block, and includes the steps of:
(a) subjecting the image data block to discrete cosine transformation so as to generate discrete cosine...
|
|
|
6879703 |
Method and apparatus for watermarking images
Digital watermarks are embedded in image data ( 102 )in order to enable authentication of the image data and/or replacement of rejected portions of the image data. Authentication codes are derived...
|