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7630563 |
System and method for decoding digital image and audio data in a lossless manner
A method of losslessly decoding signals representing an image is claimed. A lossy compressed data file and a residual compressed data file are received. The lossy compressed data file is separated...
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7630436 |
Video predictive decoding method and apparatus
A video predictive decoding method and apparatus for predicting a current block of a picture. The method includes storing at least one previous product in a memory. The previous product corresponds...
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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...
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7627180 |
Image compression apparatus
To improve the data compression ratio in the data compression/decompression method utilizing the down-sampling process. Image data in a DS area division unit ( 130 ) is divided into a plenty of DS...
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7623720 |
Image processing apparatus and method
An image processing apparatus capable of controlling the amount of codes in the image data of one image through one-pass encoding, without changing a quantization table. A Discrete Cosine...
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7609903 |
Spread spectrum signal demodulating method and apparatus
A spread spectrum signal demodulating method whereby spread-code synchronous acquisition and carrier synchronous acquisition are performed using FFT at high speed, wherein a received signal, of...
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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...
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7606432 |
Apparatus and method for providing thumbnail image data on a mobile terminal
Apparatus and method for providing thumbnail image data on a mobile terminal are provided. The apparatus and method comprise determining whether an image management mode is selected when the mobile...
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7593542 |
Image processing apparatus, image processing method, and computer product
An image processing apparatus includes an extracting unit to extract watermark data from image data of an image; a generating unit to generate a watermark image based on the watermark data; and a...
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7587093 |
Method and apparatus for implementing DCT/IDCT based video/image processing
Several apparatuses employing a tag table and/or an AC table, and same method are provided. First, a data access apparatus, which comprises a buffer, a tag table and a controller, receives and...
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7587091 |
De-interlacing using decoder parameters
Locations of reference blocks of pixels of decoded interlaced video reference fields decoded from a compressed stream of video data are computed using motion vectors decoded from the same stream of...
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7580579 |
Image-adaptive quantization for JPEG compression
In a method of digital image compression, the spatial frequency content of a digital image is characterized using a relatively sparse sampling of data blocks from the image, and a quantization...
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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...
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7580167 |
Determining whether to convert image data in an input color space to an output color space in a transform domain or real domain
Provided are a method, system, and article of manufacture for determining whether to convert image data in an input color space to an output color space in a transform domain or real domain. An...
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7580166 |
Converting image data in an input color space to an output color space in a transform domain
Provided are a method, system, and article of manufacture for converting image data in an input color space to an output color space in a transform domain. An input block of coefficients in an...
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7574060 |
Deblocker for postprocess deblocking
Presented herein are system(s), method(s), and apparatus for a deblocker for postprocess deblocking. In one embodiment, there is presented a decoder system for deblocking video data. The decoder...
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7570822 |
Image processing apparatus, printer and control method of the image processing
When data of one block is subjected to Huffman decoding (S 100 to S 120 ), inverse quantization processing is executed on the decoded data (S 130 ), and when a present block is a starting point...
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7565021 |
Efficient implementation of block-based transform on graphics processing unit
Implementations of transforms, such as a discrete cosine transform (DCT) and inverse DCT on a graphics processing unit (GPU), use direct matrix multiplication. GPU features such as parallel...
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7558801 |
Distributing limited storage among a collection of media objects
A quality level determining the extent to which each image file is compressed is automatically computed for each image file in a set to ensure that the total size of the compressed image files does...
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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...
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7542615 |
Image area extraction method, image reconstruction method using the extraction result and apparatus thereof
This invention has as its object to detect an image area of interest in an image file by a method with a lighter processing load by making determination using characteristics of a quantization...
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7542612 |
Signal processing method and signal processing device
A storage unit which stores n pieces of data is formed by m memories (m≠n). The n pieces of data are sorted into the memories such that the n pieces of data can be read in parallel no matter...
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7532765 |
Run length encoded digital image
Methods, apparatus and computer readable medium are described that compress and/or decompress digital images in a lossless or a lossy manner. In some embodiments, a display controller may quantize...
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7529415 |
Adaptive and progressive protection of fixed images encoded in wavelets
A process for secured distribution of fixed numerical images according to a nominal format resulting from numerical encoding in wavelets, represented by a original stream including a packet...
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7529384 |
Robust hidden data extraction method for scaling attacks
A product and process for extracting hidden data from a stego-image that has been subjected to scaling attacks are disclosed. The hidden data extraction method of the present invention retains the...
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7528844 |
Interpolation of plotted points between sample values
A video display for digitized video data interpolates values between time samples, such as luminance over a horizontal line or over an average of all the horizontal lines in a video signal, so as...
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7526134 |
Image processing apparatus, program, recording medium, and data decompression method
An image processing apparatus includes a decompressing unit decompressing image data having a first data compression format, an obtaining unit obtaining a second data compression format that is...
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7522776 |
Digital video media duplication or transmission quality measurement
A system and method for measuring video quality of a video image, wherein the system comprises a source device comprising an original video image; a receiver comprising a received video image; a...
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7522761 |
System and method for detecting a streak in a compressed gray scale image
A system and method for detecting a streak in a JPEG image. A system is provided that includes an extraction system for extracting a DC value from each cell block in the compressed image; an...
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7519230 |
Background motion vector detection
A selector ( 502 ) for selecting a background motion vector for a pixel in an occlusion region of an image, from a set of motion vectors being computed for the image, comprises: computing means (...
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7505630 |
Image processing apparatus, image processing method, program, and recording medium that allow setting of most appropriate post-quantization condition
An image processing apparatus includes a condition setting unit with which a user sets a post-quantization condition. A partial decoding and decompression unit partially decodes and decompresses...
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7502523 |
Auto focusing apparatus and method using discrete cosine transform coefficients
Disclosed herein is an auto focusing apparatus and method for a camera. The auto focusing apparatus includes an image sensor unit, an Image Signal Processor (ISP) unit, a compression module, a...
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7499570 |
Illumination invariant change detection
A system and method for illumination invariant change detection are provided, the system including a processor, an energy ranking unit in signal communication with the processor for extracting...
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7496210 |
System and method for steganalysis
Briefly, embodiments of a method and system for steganalysis are disclosed.
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7489827 |
Scaling of multi-dimensional data in a hybrid domain
At least a system and data structure for the scaling of data is provided. An exemplary use of the disclosed embodiments involves the scaling up in size or the scaling down in size of computer...
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7486828 |
Method and apparatus for processing an image data for output
A technique of processing an image data for output on a digital image device that compresses ( 164 ) a portion of a received image data to a data frame ( 110 ) according to a predefined size that...
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7483581 |
Apparatus and method for encoding digital image data in a lossless manner
A method of losslessly compressing and encoding signals representing image information is claimed. A lossy compressed data file and a residual compressed data file are generated. When the lossy...
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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...
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7474697 |
Apparatus and method for partitioning moving picture data
An apparatus for partitioning moving picture data comprises a first quantizing unit for first-quantizing a received video signal and outputting a first-quantized signal; and a second quantizing...
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7463778 |
Motion estimation for compressing multiple view images
Systems and methods of estimating motion for compressing multiple view images are described. In accordance with a machine-implemented method of encoding a target image of a scene captured at a...
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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...
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7460729 |
Data transform processing apparatus and method
A data transform processing apparatus comprising a first lossless transform circuit to perform two step ladder operation processings of receiving unweighted normalized data then outputting weighted...
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7457474 |
Generalized scalability for video coder based on video objects
A video coding system that codes video objects as scalable video object layers. Data of each video object may be segregated into one or more layers. A base layer contains sufficient information to...
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7454077 |
Slideshow animation algorithms
A system and method for presenting images to a user. A set of available animations to be performed when presenting digital images to a user is defined. A digital image and an available animation...
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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...
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7444033 |
Method and apparatus for extracting pixel values
The luminance and chrominance values of pixels encoded according to MPEG or JPEG encoding are extracted using a forward discrete cosine transform (DCT). The forward DCT used in MPEG encoding is...
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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...
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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...
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7437007 |
Region-of-interest editing of a video stream in the compressed domain
The present invention, in one embodiment, is comprised of a method of performing region-of-interest editing of a video stream in the compressed domain. In accordance with this method, a video...
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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...
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