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| Number | Title | Issue Date |
| 8160374 | Method and apparatus for realizing adaptive quantization in process of image coding A method and apparatus for realizing adaptive quantization in the process of image/video coding, which includes the following steps: acquiring the parameter information of the neighbor blocks of the current block; determining the quantization mode of the current blo... | 04/17/2012 |
| 8145003 | Adaptive transforms In one embodiment, an image is broken up into multiple regions or segments, where each segment may be of arbitrary shape, and a transform (multi-scale or otherwise) is applied on the set of segments. In another embodiment, pattern adaptive prediction is used when pr... | 03/27/2012 |
| 8139879 | Method and apparatus for encoding image by exponential Golomb binarization using optimal threshold, and method and apparatus for decoding image by exponential Golomb binarization using optimal threshold A method and apparatus for coding an image by using exponential Golomb binarization are provided. The method comprises: performing entropy coding on an input image by performing exponential Golomb binarization using a plurality of predetermined thresholds; measuring... | 03/20/2012 |
| 8131095 | Process and device for the compression of portions of images The process of compression of a block of a size L×H of a sequence of images comprises, in a repetitive manner, for said block: a search step, in one of the images of the sequence of images, for the zone L×H pixels the most similar to said block; a step of determin... | 03/06/2012 |
| 8098947 | Method and apparatus for processing image data by rearranging wavelet transform data An image data processing apparatus includes a memory for storing coefficient data obtained by performing a wavelet transform on image data, a calculation unit for calculating a memory address of the memory storing the coefficient data, based on an encoding parameter... | 01/17/2012 |
| 8090207 | Adaptive compression quality Images captured in a digital form are stored in a digital storage device with already-stored images by determining if a percentage of a finite storage capacity of the digital storage device needed to store the captured and already stored images in the storage device... | 01/03/2012 |
| 8086053 | Method and apparatus for transforming and inverse-transforming image Provided are a method and apparatus for transforming an image, in which an input image is transformed into a frequency domain by selectively using a plurality of frequency transform algorithms according to a frequency characteristic of the input image. The method in... | 12/27/2011 |
| 8073275 | Image adaptation with target size, quality and resolution constraints A computer-implemented method for image adaptation includes accepting a digitally-represented input image and a target size requirement. The input image is modified by optimally determining at least one of a resolution of the input image and a quality of the input i... | 12/06/2011 |
| 8073274 | Image processing apparatus, image processing method, storage medium, and program An image processing apparatus may include a feature value extraction unit adapted to extract a feature value from an image, a setting unit adapted to set setting-information defining a process to be performed on the image, an editing unit adapted to edit the setting... | 12/06/2011 |
| 8050506 | Image enhancement device An image enhancement device is obtained which is capable of extracting, as regions of interest, still objects or objects with smaller motion vectors, or regions located out of the central area of an image. An image processing module (22) applies memorized-col... | 11/01/2011 |
| 8027546 | Method, apparatus, and computer program for image data processing An image processing apparatus includes an input device, an encoder, a memory, a first allocator, a data block size determination mechanism, a second allocator, and a processor. The input device receives image data of a given data size and transmits the image data in... | 09/27/2011 |
| 8019170 | Video frame motion-based automatic region-of-interest detection The disclosure is directed to techniques for region-of-interest (ROI) video processing based on low-complexity automatic ROI detection within video frames of video sequences. The low-complexity automatic ROI detection may be based on characteristics of video sensors... | 09/13/2011 |
| 8014621 | Methods and apparatuses for generating and recovering 3D compression data A method of generating and recovering three-dimensional (3D) compression data and an apparatus to perform the method is described. The method includes generating configuration information of a 3D compression data sequence, generating a plurality of pieces of individ... | 09/06/2011 |
| 8000546 | Adaptive scan method for image/video coding An adaptive scan method for image/video coding in accordance with the present invention comprises acts of calculating an average power of the transformed coefficients vector and acts rearranging the powers of the transformed coefficients with descending order in the... | 08/16/2011 |
| 7991238 | Adaptive compression of multi-level images The invention facilitates adaptive compression of multi-level images, such as captured digital images of a whiteboard, etc., encoding a bitstream comprising a color image component and a black-and-white image component. Either or both of a color and a black-and-whit... | 08/02/2011 |
| 7978922 | Compressing images in documents Images that are contained within documents are compressed to reduce the file size of the document. The compression may occur such that compression steps occur to the image automatically. The compression steps performed are determined based on the information availab... | 07/12/2011 |
| 7974483 | Method and corresponding device for block coding data The method for block coding data, such as video data, via a compression operation includes applying to input-data blocks a discrete-cosine-transform (DCT) operation and a quantization operation to produce compressed-data blocks. The compressed-data blocks are subjec... | 07/05/2011 |
| 7970225 | Image processing device, image processing method, image processing program and computer-readable recording medium on which the program is recorded An image processing device includes a processor controlling one or more components of the image processing device, a region extraction unit for separating and extracting a character region, a graphic region and a photograph region from image data; a region compressi... | 06/28/2011 |
| 7970224 | Efficient rate allocation for multi-resolution coding of data A method and an apparatus relates to examining respective collections of coefficients out of a plurality of collections of coefficients according to a global coding order of the plurality of collections of coefficients, the respective collections of coefficients hav... | 06/28/2011 |
| 7965898 | Accelerating video decoding using multiple processors A system and method for decoding high definition video content using multiple processors reduces the likelihood of dropping video frames. Each of the multiple processors produces and stores a portion of a decoded video frame in its dedicated frame buffer. A region o... | 06/21/2011 |
| 7933459 | Data processing apparatus, the method and coding apparatus From an MPEG image data (S11), an MPEG2 encoder circuit (51) extracts a quantum scale (Qm) of each macro block (MB) which has been used for quantization of the MPEG2 in the encoding process. An activity calculation circuit (53) calculates an act... | 04/26/2011 |
| 7929793 | Registration and compression of dynamic images A technique for selecting portions of a dynamic medical image data set to be stored and portions of the medical image data set to be discarded or processed differently in order to reduce the overall amount of image data that is stored for each image data set. The dy... | 04/19/2011 |
| 7929794 | Method and apparatus for image data compression An image data file undergoes compression, such as JPEG compression. The size of the resulting compressed file is compared with a file size limit. If the file size limit is exceeded, then the compression factor may be increased. A scaler reduces the image pixel resol... | 04/19/2011 |
| 7916959 | Image encoding method, image decoding method, image encoding apparatus, image decoding apparatus, image encoding program, and image decoding program An image decoding method, apparatus and program for decoding coded picture data is disclosed. In the method, apparatus and program, the coded picture data is entropy-decoded to derive four transform coefficient strings each comprising entropy-decoded sixteen (16) tr... | 03/29/2011 |
| 7903892 | Image analysis for image compression suitability and real-time selection The present invention provides an analysis method that uses error metrics to determine whether an image is suitable for compression. One embodiment of the present invention can make the determination in real-time. In one embodiment, analysis methods based on four er... | 03/08/2011 |
| 7899261 | Imaging device that generates photographic image data An imaging device has an image pickup section, a compression processing section, a correlation data holding section, and first and second calculating sections. The image pickup section generates photographic image data. The compression processing section performs co... | 03/01/2011 |
| 7899262 | Data compression apparatus and data compressing program storage medium A data compression apparatus includes: a type determination section which determines a type of data to be compressed; a difference generation section which obtains a difference between adjacent values in a sequence of values forming data to be compressed, and genera... | 03/01/2011 |
| 7894682 | Multi-point predictive foveation for bandwidth reduction of moving images A scene of an image sequence is transmitted that has been compressed using a number of foveation zones, each foveation zone being weighted based on a probability of a viewer looking at a corresponding portion of the first scene. ... | 02/22/2011 |
| 7894683 | Reformatting binary image data to generate smaller compressed image data size In various exemplary embodiments, systems include a segmentor to segment text binary image data to a first plane. A subtractor subtracts text binary image from binary image data to generate a non-text binary image data in a second plane. A converter converts non-tex... | 02/22/2011 |
| 7889936 | Image forming apparatus and image forming method An image forming apparatus and method capable of decompressing and compressing image data. More specifically, the apparatus and method include decompressing first compressed image data, processing the decompressed image data, selecting from among a plurality of quan... | 02/15/2011 |
| 7885476 | System and method for effectively performing an adaptive encoding procedure A system and method for effectively performing an adaptive encoding procedure includes a texture analyzer that initially determines texture characteristics for blocks of input image data. An image transformer converts the blocks of image data into sets of coefficien... | 02/08/2011 |
| 7873226 | Image encoding apparatus An image encoding apparatus includes a detection unit detecting edge block candidates as blocks including an edge in an image composed of plural blocks, and a determination unit excluding an edge block candidate that is recognized as no necessity of image quality im... | 01/18/2011 |
| 7869660 | Parallel entropy encoding of dependent image blocks A method of entropy encoding image or video data may include entropy encoding a number of blocks independently and in parallel to generate a number of bit streams. At least one of the number of bit streams may include an assumed value in place of a value that would ... | 01/11/2011 |
| 7869661 | Image coding apparatus, image coding method, and image coding program for coding at least one still frame with still frame coding having a higher quality than normal frame coding of other frames An image coding apparatus includes a still frame coding judgement unit for judging whether a target frame to be coded is a still frame or not from a difference value between the target frame and an immediately previous reference frame, and a quantization parameter c... | 01/11/2011 |
| 7856149 | Digital image encoding An apparatus and method for limiting bit rate of compressed data is disclosed. The apparatus and method allows the generation of parameters for encoding digital image data based on the data bit rate resulting from the use of different parameters. In one embodiment, ... | 12/21/2010 |
| 7844122 | Chroma temporal rate reduction and high-quality pause system and method A system and method are provided for compressing data. In use, luminescence data of a frame is updated at a first predetermined rate, while chrominance data of the frame is updated at a second predetermined rate that is less than the first predetermined rate. Moreov... | 11/30/2010 |
| 7835582 | Image encoding apparatus and control method thereof An apparatus and method generate encoded data including lossless- and lossy-encoded data together within a unit time period while fully using the lossy encoding processing capability, by appropriately setting a threshold associated with the number of tiles. To this ... | 11/16/2010 |
| 7831103 | Digital images A rate control means for rate allocation in JPEG2000 processing apparatus is disclosed. The rate control means includes means to receive various parameters from the tier-1 coder and means to calculate R-D slope, means for composing a bucket element, means for compar... | 11/09/2010 |
| 7826674 | Content signal analysis A method for modulating a content signal (18) to contain an auxiliary signal, the content signal (18) having content segments, the method comprising logging detections of a test content signal (20) to create one or more log files (44); pa... | 11/02/2010 |
| 7827187 | Frequency partitioning: entropy compression with fixed size fields A frequency partitioning technique is introduced that amortizes the work of computing codeword lengths within a tuplecode by grouping together tuples that have the same pattern of codeword lengths. Specifically, the technique entropy codes and partitions column valu... | 11/02/2010 |
