Patent application number | Description | Published |
20090232469 | METHOD AND APPARATUS FOR RE-CONSTRUCTING MEDIA FROM A MEDIA REPRESENTATION - The present invention relates to a new type of random access point adapted to be included in a media representation comprising a plurality of data objects. The random access point is characterized by a reference to a data element in another data object of said plurality of data objects, wherein said referenced data element at least partly describes how to reconstruct media from said media representation. The invention further relates to a method and apparatus of reconstructing media from a media representation. The method comprises receiving a data object comprising at least one reference to a data element in another data object of the media representation; and re-constructing the media by use of information associated with said referenced data element(s). | 09-17-2009 |
20100142557 | RICH MEDIA STREAM MANAGEMENT - A secondary stream of rich media packets defining scene states of a sub-portion of a scene representable by a primary stream or rich media packets. Local random access data defining instructions for enabling creation, when being processed, of a starting state of the scene sub-portion without affecting the scene state of scene portions is provided. The local random access data is packed into at least one rich media packet, which is inserted into the secondary stream and transmitted to at least one user terminal. The local random access data can be used by terminals for tuning-in to the secondary stream and/or for error recovery relating to the secondary stream. | 06-10-2010 |
20100149422 | IMAGE BLOCK CLASSIFICATION - An image processing method involves determining a global motion between a reference frame and a current frame in a frame sequence. A reference block is identified in the reference frame for a current block based on the global motion. A classification parameter is calculated based on the pixel values of the current block and the reference block. The parameter can be used for classifying the block as belonging to the background or foreground of the current frame. The parameter is preferably also utilized in frame rate-up conversion when extrapolating or interpolating new frames. | 06-17-2010 |
20100172594 | Data System and Method - Vector-based images and documents, such as those written in SVG and Adobe Flash, can be converted into equivalent bitmap or other non-vector-based image by parsing the vector-based image to detect objects in the vector-based code. For each detected object, a separate bitmap of the object is created and information about where that image lies on the z-axis is retained. A separate bitmap image is created for each object, and the separate bitmap images are layered on top of one another, which is to say ordered along the z-axis in accordance with their z-axis coordinates. Animation of an image can be implemented by selectively rendering different ones of the bitmap images as transparent. | 07-08-2010 |
20100188335 | Navigation Handling within Web Pages - A web application ( | 07-29-2010 |
20100189124 | Method and Arrangement for Improved Media Session Management - In a method for media session management a user terminal upon detecting SO, SOO switching to a media stream on a channel from a unicast transport source, requesting S | 07-29-2010 |
20100278269 | Systems and Methods for using DC Change Parameters in Video Coding and Decoding - The present application discloses systems and methods for using DC change parameters in video coding. In one embodiment, the method includes the steps of: (a) obtaining a DC change parameter; (b) decoding encoded video data to obtain reconstructed pixel values; and (c) using the reconstructed pixel values, a filter, and the DC change parameter to obtain filtered reconstructed pixel values with a DC change. | 11-04-2010 |
20100284458 | ADAPTIVE FILTERING - A method and device for determining an adaptive filter having multiple filter parameters, wherein a first filter parameter has a first level of adaptivity and a second filter parameter has a second, different level of adaptivity. Parameter values for the first filter parameter are determined among a first set of allowable filter parameter values. Parameter values for the second filter parameter are correspondingly determined among a second, different set of allowable filter parameter values. The different levels of adaptivity in the filter parameters are achieved because the second set includes more allowable filter parameter values than the first set. The adaptive filter is advantageously used in filtering in intra- or inter-predication during video encoding and decoding. | 11-11-2010 |
20100284461 | Encoding Filter Coefficients - A method of encoding a plurality of adaptive filter coefficients ( | 11-11-2010 |
20100309977 | Adaptive Intra Mode Selection - In video encoding and decoding predictions may be generated by intra-frame prediction. Intra-frame prediction uses reconstructed pixels in a reconstructed frame. Intra-frame prediction is performed by extending the reconstructed pixels into a predicted block using intra-frame prediction modes, each intra-frame prediction mode indicating a direction of the extension. In order to reduce the number of possible intra-frame prediction modes, a subset is selected from a predetermined set of possible intra-frame prediction modes. A subset of intra-frame prediction modes can be created by forming preselection sets of intra-frame prediction modes on the basis of similarity of their associated predicted blocks and selecting a representative intra-frame prediction mode from each preselection set. | 12-09-2010 |
20110007801 | Pixel Prediction for Video Coding - Method of encoding an input video frame into an encoded video frame. The method comprises the steps of disassembling the input video frame into a plurality of blocks of pixels; and for each block being a current block, generating a corresponding predicted block from already reconstructed pixels, generating a residual block by subtracting the predicted block from the current block, and generating a reconstructed block from the residual block and the predicted block, generating the encoded video frame from the residual block, creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block, wherein the aligned predicted block is used in the steps of generating the residual block and generating the corresponding reconstructed block. A corresponding method for decoding the encoded video frame into a decoded video frame also uses a step of creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block. | 01-13-2011 |
20110026599 | TEMPLATE-BASED PIXEL BLOCK PROCESSING - An adaptive filter to use in connection with prediction-based pixel block encoding and decoding is determined independently at the encoder and decoder side through a template-based procedure. A pixel block ( | 02-03-2011 |
20110075730 | Row Evaluation Rate Control - A communication device and method for controlling a bit rate when encoding video data that includes a plurality of frames. The method includes partitioning a received current frame into groups of blocks; estimating an energy for a current group of blocks, where the energy of the current group of blocks depends from a same group of blocks in a previous frame; determining a target number of bits for the current group of blocks; calculating a quantization parameter for the current group of blocks of the current frame based on the estimated energy of the current group of blocks and the determined target number of bits for the current group of blocks; and encoding the current group of blocks based on the calculated quantization parameter. | 03-31-2011 |
20120011270 | METHODS AND ARRANGEMENTS FOR CREATING AND HANDLING MEDIA FILES - A file reading entity, such as a server or a client, and a method in the file reading entity for handling a fragmented media file provided from a file creating entity during HTTP streaming with adaptive progressive downloading. Once it has been determined that the media file comprise at least one alternative movie fragment, constituting an alternative to an associated movie fragment, one of these fragments is selected, such that is can then be transmitted or played out in a conventional manner. A file creating entity configured to provide a file comprising alternative movie fragments is also provided. | 01-12-2012 |
20120016917 | MEDIA CONTAINER FILE MANAGEMENT - A media container file ( | 01-19-2012 |