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| Number | Title | Issue Date |
| 8175153 | Method of encoding and decoding an image sequence by means of hierarchical temporal analysis The method realizes a motion compensated temporal filtering (MCTF), the temporal filtering being replaced by an intra mode coding to obtain at least one low (L) or high (H) frequency picture if the current picture has a level of correlation with a lower previous pic... | 05/08/2012 |
| 8144769 | Streaming methods and systems Various embodiments provide methods and systems for streaming data that can facilitate streaming during bandwidth fluctuations in a manner that can enhance the user experience. In one aspect, a forward-shifting technique is utilized to buffer data that is to be stre... | 03/27/2012 |
| 8130831 | Two-layer encoding for hybrid high-definition DVD A hybrid high-definition encoder and method are disclosed, for processing signal data as a plurality of block transform coefficients for each of base layer data and enhancement layer data, where the encoder includes a two-layer decomposition unit for decomposing an ... | 03/06/2012 |
| 8107530 | Apparatus and method for switching between single description and multiple descriptions Provided is an apparatus for and a method of transcoding video, in which, in the transmission of a compressed video, the compressed video is transcoded into multiple descriptions in an error prone environment and is transcoded into a single description in an lower e... | 01/31/2012 |
| 8094719 | Streaming methods and systems Various embodiments provide methods and systems for streaming data that can facilitate streaming during bandwidth fluctuations in a manner that can enhance the user experience. In one aspect, a forward-shifting technique is utilized to buffer data that is to be stre... | 01/10/2012 |
| 8094718 | Motion-compensated spatio-temporal wavelet compression of video data with optimised permutation of the frames In video encoding, the video frames are spatio-temporally filtered for reduction of spatial and temporal redundancy before they are entropy encoded. Known filtering schemes consider temporally successive frames and are static. It is probable but not necessary that s... | 01/10/2012 |
| 8081680 | Selective inter-layer prediction in layered video coding Systems and methods for using selective inter-layer prediction during layered video coding operations are described. In one aspect, a layered coded video structure is generated by selectively employing only objectively efficient inter-layer predictions between respe... | 12/20/2011 |
| 8005142 | Intraprediction encoding/decoding method and apparatus An intraprediction encoding/decoding method and apparatus are provided. The intraprediction encoding method includes forming a flipped reference block by flipping pixels of a reference block used for intraprediction symmetrically with respect to a straight line of a... | 08/23/2011 |
| 7995652 | Systems and methods for multi-stream image processing Systems and methods for the processing of images over bandwidth-limited transmission interfaces, such as processing of high resolution video images over standard analog video interfaces, using multi-stream and/or multi-resolution analog methodology. The disclosed sy... | 08/09/2011 |
| 7933329 | System and method for monitoring video packets for quantifying video quality A system and method for monitoring a sequence of video packets for quantifying video quality includes a video picture monitor that accesses data in a header of a video packet included in the sequence of video packets. The header is separate from video content stored... | 04/26/2011 |
| 7903734 | Moving image decoding apparatus, moving image decoding method, image decoding method, and image decoding apparatus A moving image decoding apparatus for decoding encoded moving image data, which is generated by decomposing each frame of moving image data into a plurality of subbands, and bitplane-encoding coefficients of the subbands for each predetermined unit, includes a decod... | 03/08/2011 |
| 7889791 | Method and apparatus for scalable compression of video The present invention relates to a method and apparatus for producing a fully scalable compressed representation of video sequences, so that they may be transmitted over networks, such as the Internet, for example. Because the signal is scalable, users receiving the... | 02/15/2011 |
| 7881374 | Method and apparatus for 3-D subband video coding A method of encoding and decoding a sequence of frames uses 3-D subband decomposition involving temporal filtering. Under certain conditions, for at least one pixel, the value of said pixel is approximated using one or more pixel values in the same frame. ... | 02/01/2011 |
| 7876820 | Method and system for subband encoding and decoding of an overcomplete representation of the data structure A bit stream representing n-dimensional data structures may be encoded and decoded. A part of the data can be mappable within predefined similarity criteria to a part of the data of another data structure. The similarity criteria may include, a spatial or temporal s... | 01/25/2011 |
| 7860161 | Enhancement layer transcoding of fine-granular scalable video bitstreams Systems and methods for enhancement layer transcoding of fine-granular scalable video bitstreams are described. In one aspect, an enhancement layer bitstream is decoded from encoded video data. The encoded video data includes a base layer and one or more enhancement... | 12/28/2010 |
| 7715477 | Classifying image areas of a video signal A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of receiving base layer images of standard definition pictures from a base layer decoder; defining image areas of the standard definition pictures; classifying image... | 05/11/2010 |
| 7702015 | Systems and methods for multi-resolution image processing Systems and methods for the processing of images over bandwidth-limited transmission interfaces, such as processing of high resolution video images over standard analog video interfaces, using multi-stream and/or multi-resolution analog methodology. The disclosed sy... | 04/20/2010 |
| 7656950 | Video interpolation coding A method of enhancing picture quality of a video signal is disclosed. The method comprises the steps of generating an interpolated base frame image; receiving a first previously decoded difference picture; receiving a second previously decoded difference picture; ge... | 02/02/2010 |
| 7483487 | Streaming methods and systems Various embodiments provide methods and systems for streaming data that can facilitate streaming during bandwidth fluctuations in a manner that can enhance the user experience. In one aspect, a forward-shifting technique is utilized to buffer data that is to be stre... | 01/27/2009 |
| 7424730 | Multimedia presentation latency minimization Systems and methods for presenting time-varying multimedia content are described. In one aspect, a lower quality data stream for an initial portion of the multimedia content is received. The lower quality data stream is received at a rate faster than a real-time pla... | 09/09/2008 |
| 7424175 | Video segmentation using statistical pixel modeling A method for segmenting video data into foreground and background portions utilizes statistical modeling of the pixels. A statistical model of the background is built for each pixel, and each pixel in an incoming video frame is compared with the background statistic... | 09/09/2008 |
| 7382923 | Method and device for processing and decoding a coded digital signal The present invention concerns a method of processing a coded digital signal containing on the one hand a set of samples of different types obtained by coding a set of original samples representing physical quantities and on the other hand a set of information repre... | 06/03/2008 |
| 7372904 | Video processing system using variable weights and variable transmission priorities In an encoding process, video data are represented as a bitstream of a quantized base layer and one or more enhancement layers, which capture the difference between a quantized base video picture and an original unquantized input video picture. Due to bandwidth cons... | 05/13/2008 |
| 7372903 | Apparatus and method for object based rate control in a coding system A method and apparatus for selecting a quantizer scale for each object within a frame to optimize the coding rate is disclosed. A quantizer scale is selected for each region or “object” within each frame such that the target bit rate for the frame is achieved wh... | 05/13/2008 |
| 7370115 | Method of controlling terminal of MPEG-4 system using caching mechanism A method of controlling a terminal of the MPEG-4 system to enable to faster reproduce the selected contents through a caching mechanism includes, if the contents to be reproduced is selected, the terminal of the MPEG-4 system receives an initial object descriptor of... | 05/06/2008 |
| 7362811 | Audio enhancement communication techniques A communication system (10) receives a communication signal comprising first and second data with different compression levels, such as highly compressed and weakly compressed levels. A mode detector (15) detects the level of compression. One or more s... | 04/22/2008 |
| 7356464 | Method and device for estimating signal power in compressed audio using scale factors Estimating a signal power in a compressed audio signal [A] is provided, the audio signal comprising blocks of quantized samples, a given block being provided with a set of scale factors. The estimating is performed by extracting the set of scale factors from the com... | 04/08/2008 |
| 7352906 | Continuous transform method for wavelets A method and system for mapping the flow data that will be the subject of wavelet transform equations to a system comprising adders, subtractors, multipliers and/or dividers to perform the mathematical functions set forth in the particular wavelet transform. A shift... | 04/01/2008 |
| 7342968 | Method and system for modeling the relationship of the bit rate of a transport stream and the bit rate of an elementary stream carried therein A method and system are disclosed for controlling the generation of a systems layer stream, such as a transport stream, that carries a program made up of at least one elementary stream, such as an encoded audio signal or an encoded video signal. The systems layer st... | 03/11/2008 |
| 7343287 | Method and apparatus for scalable encoding and method and apparatus for scalable decoding An apparatus for scalable encoding a spectrum of a signal including audio and/or video information, with the spectrum comprising binary spectral values, includes a means for generating a first sub-scaling layer and a second sub-scaling layer in addition to a means f... | 03/11/2008 |
| 7340764 | Data transmission system A transmission control unit (12) of a transmitting station (10) specifies usable plural transmission paths (20). A data supply unit (11) transfers movie contents file encoded by MPEG 4 to plural divisional distribution encoders (13... | 03/04/2008 |
| 7336710 | Method of motion estimation in mobile device A method of estimating motion in a mobile device reduces access of external memory and power consumption while increasing the usability of internal memory. The method includes recognizing an overlapped block of a reference search area between the current and its nex... | 02/26/2008 |
| 7336843 | Method and device for compressing data to be transmitted at constant bit rate The invention concerns a method of compressing and transmitting digital data, in particular images, at a constant bit rate, the method comprising the following steps: splitting input data into blocks of data, apply... | 02/26/2008 |
| 7333544 | Lossless image encoding/decoding method and apparatus using inter-color plane prediction A lossless image encoding/decoding method and apparatus. The lossless color image encoding apparatus includes a motion prediction image generator estimating a motion between a previous image and a current image and outputting a corresponding prediction image, a resi... | 02/19/2008 |
| 7334248 | Conditional access filter as for a packet video signal inverse transport system A method and an apparatus for processing a packetized transport stream that determines whether a sequence of transport packets are received in a proper sequence and whether an error is present in a particular transport packet. The method includes the steps of determ... | 02/19/2008 |
| 7324695 | Prioritized image visualization from scalable compressed data A system and method for prioritized transmission of scalable compressed data are provided, the system including a database server for receiving an interactive prioritization request from a client and prioritizing transmission of the compressed data relative to a bin... | 01/29/2008 |
| 7321625 | Wavelet based multiresolution video representation with spatially scalable motion vectors Wavelet based multiresolution video representations generated by multi-scale motion compensated temporal filtering (MCTF) and spatial wavelet transform are disclosed. Since temporal filtering and spatial filtering are separated in generating such representations, th... | 01/22/2008 |
| 7319776 | Image processing method and image processing program An overall image obtained by successively imaging different imaging regions a plurality of times during an image period using an imaging device is separated into a plurality of partial images respectively corresponding to each of the plurality of imaging operations.... | 01/15/2008 |
| 7313574 | Method for clustering and querying media items The present invention relates to managing media items in data processing terminals. More particularly, the present invention is directed to a method, a device and a computer program product for arranging, viewing and querying media items organized in hierarchical mu... | 12/25/2007 |
| 7313186 | Method and apparatus for implementing wavelet filters in a digital system A digital data system (100) provides 1-D, 2-D and 3-D capability and multi-band channel capability. Improved filter banks are created by generating a filter bank having an analysis portion and synthesis portion and obtaining wavelet coefficients (302) ... | 12/25/2007 |
