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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 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 |
| 7310370 | Multi-layer video compression system with synthetic high frequencies Multi-layered motion or still video compression includes, in an encoder or encoding function aspect of the invention, separating the video signal into low-frequency and high-frequency components, processing the low-frequency components of the video signal to generat... | 12/18/2007 |
| 7310447 | Image processing apparatus, image processing method, and storage medium In response to a partial codestream truncation command, a partial codestream truncation process unit temporarily truncates a code line of encoded data. The partial codestream truncation process unit can also temporarily truncate the code line frame by frame. In resp... | 12/18/2007 |
| 7305106 | Object detection apparatus, object detection method and recording medium An object detection apparatus is provided that detects a target object in an image more securely and at higher speed than the conventional one. The human body detection apparatus for detecting a target object in an image includes a template memory portion for memori... | 12/04/2007 |
| 7302105 | Moving image coding apparatus, moving image decoding apparatus, and methods therefor There are provided a moving image coding apparatus and moving image decoding apparatus which allow efficient decoding of an interlaced image from the coded data of a progressive image, and methods for the apparatuses. Noninterlaced moving image data is input from a ... | 11/27/2007 |
| 7295870 | Method for the detection and automatic characterization of nodules in a tomographic image and a system of medical imaging by tomodensimetry For the automatic detection and characterization of nodules in a tomographic image of an anatomical zone of a patient, the image is segmented for identifying therein a region of interest, and the segmented image is processed for identifying the nodule. During... | 11/13/2007 |
| 7292283 | Apparatus and method for performing sub-pixel vector estimations using quadratic approximations To achieve the foregoing, and in accordance with the purpose of the present invention, an apparatus and method for generating refined sub-pixel vectors for motion estimation from vector correlation values and converged vector correlation values using quadratic appro... | 11/06/2007 |
| 7292602 | Efficient available bandwidth usage in transmission of compressed video data Described herein are systems and methods for multiplexing and transmitting video data. The systems and methods use excess bandwidth in a channel available after meeting minimum transmission requirements for all bitstreams. A network device of the invention flexibly ... | 11/06/2007 |
| 7289563 | Security camera system A security camera system having one or more monitoring cameras, each of which transmits a digital video signal after compressing/encoding, are connected to a controller via a network. In the controller, a media control section stores the video signal supplied from t... | 10/30/2007 |
| 7283968 | Method for grouping short windows in audio encoding Windows of the first type and windows of the second type are identified within a frame using energy associated with each short window within the frame. The short windows of the first type and the short windows of the second type are then grouped into two preliminary... | 10/16/2007 |
| 7280702 | Methods and apparatus for dynamic transfer of image data A dynamic transfer syntax efficiently transfers data, including large data images, from a server to at least one client. Source data is transformed into a hierarchical representation. The hierarchical representation, consisting of essentially non-redundant data, is ... | 10/09/2007 |
| 7280600 | Blockwise coding process, of MPEG type, in which a resolution is assigned to each block The invention relates to a process for coding images transmitted according to the so-called multiresolution technique. According to this process, a step of pixel level processing of so-called mixed blocks of pixels, that is to say those shared between at least one z... | 10/09/2007 |
| 7274742 | Model and model update technique in a 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... | 09/25/2007 |
| 7272263 | Image decoding with a simplified process A decoding unit (12) decodes an image according to JPEG 2000. A simplifying unit (30) comprises an automatic transformer (32) which compares an elapsed time to a time limit at each stage of decoding the image and switches the decoding process to... | 09/18/2007 |
| 7269291 | Method and apparatus for high speed data compression and decompression A subband processing apparatus useful for wavelet conversion and compression-decompression operations includes a plurality of memories and a plurality of analytic filter banks. The plurality of memories store an input signal in a way such that the input signal is di... | 09/11/2007 |
| 7269785 | Digital manipulation of video in digital video player According to the invention, a technique for operating a digital versatile disk (DVD) system is disclosed. First digital information is read from a DVD player. The first digital information is decompressed to create second digital information that is stored. In order... | 09/11/2007 |
| 7269292 | Digital image adjustable compression and resolution using face detection information A method of adjustable spatial and/or temporal compression of an image including a face includes identifying a group of pixels that correspond to a face within a digitally-acquired image. A first compression portion of the image including the group of pixels is dete... | 09/11/2007 |
| 7260266 | Image processing method, image processing apparatus, image processing program and image recording apparatus There are described an image processing method, an image processing apparatus, an image processing program and an image recording apparatus characterized by reduced computation loads and capable of suppressing the mottled granular noise contained in color image sign... | 08/21/2007 |