Patent application number | Description | Published |
20080199087 | Scalable Method For Encoding a Series of Original Images, and Associated Image Encoding Method, Encoding Device and Decoding Device - A series of decoded images is generated from a series of original images encoded by a first encoding technique following movement-compensated, predictive encoding, where a starting image of a group of successive original images that are to be encoded is defined by a second encoding technique following movement-compensated, temporally filtered partial band encoding based on a determined encoding property of a decoded image of the group of images that are to be encoded, the decoded image is used for generating an output image having a low resolution level, before the images are encoded. At least one output image is generated on each level of resolution from the successive original images of the group of from at least one decoded image during image encoding. The decoded images are provided only with a reduced quality while the reconstituted images are of great quality. | 08-21-2008 |
20080320358 | Encoding and Decoding Method, and Encoding and Decoding Devices with a Two-Stage Error Protection Process - An encoding method for a series of data packets transmitted in the framework of a combined streaming and downloading application by a two-stage error protection process and only one unidirectional transmission channel. According to said method, a partial block of successive data packets is protected against at least some of the transmission errors occurring during streaming with the aid of a first error protection process while all data packets are protected against the transmission errors remaining after streaming is completed with the aid of a second error protection process. In a decoding method by which a series of data packets that are encoded according to the encoding method are decoded. Also disclosed is an encoding and decoding device for carrying out the method. | 12-25-2008 |
20090043837 | Method and Peer Network for Ascertaining the Peer Network Originating Station for a File - Files which are available for dissemination in a controlled peer-to-peer network are provided with a watermark comprising a large number of watermark elements. Upon download, the composition of the parts of the file which are obtained from a plurality of source stations provides a new watermark which can clearly be associated with the target station. By storing information about forwarded watermark elements of a network server, it is possible to reconstruct for each file the network station from which this file originates. | 02-12-2009 |
20090067450 | METHOD AND SYSTEM FOR ENCODING OR DECODING A SEQUENCE OF DIGITAL DATA - A method is provided for encoding and decoding a sequence of digital data, according to which a portion of the sequence of digital data corresponds to a data block that includes several data packets, at least two data packets per data block containing an identifier. The position of the data packet within the corresponding data block can be determined based on the identifier, and the data is encoded or decoded by taking into account the identifier. | 03-12-2009 |
20090136138 | Methods and Device for the Determination and Reconstruction of a Predicted Image Area - A method determines a predicted image area for an image area, in which a temporal predictor for the image area is determined based on a reconstructed image that precedes said image, a local predictor for the image area is determined within a reconstructed image area of the image, a margin of error between the image area and the image area predicted image area is determined by the local predictor using the reconstructed image area and by the temporal predictor using one of the preceding images. A predicted image area can be reconstructed. Also disclosed are an establishing device for carrying out the method for determining a predicted image area as well as a reconstructing device for carrying out the reconstruction method. | 05-28-2009 |
20090144602 | Method and System for Encoding or Decoding a Sequence of Digital Data - A method is provided for encoding and decoding a sequence of digital data, according to which a portion of the sequence of digital data corresponds to a data block that includes several data packets, at least two data packets per data block containing an identifier. The position of the data packet within the corresponding data block can be determined based on the identifier, and the data is encoded or decoded by taking into account the identifier. | 06-04-2009 |
20100031112 | Method and device for determining indices assigned to correction symbols - A determination of indexes allocated to error correcting symbols is provided. Encoded code symbols are generated by means of a generator matrix of a block code from number of source symbols and the encoded transmission errors occur in the received code symbols, the indexes of the error correcting symbols are determined by unambiguously identifying the area of the encoded code symbols by means of first and second parameters, which can be requested in the form of at least one error correcting symbol by the receiving device from the transmitting device for reconstructing the source symbols in an error-free manner. | 02-04-2010 |
20100278432 | METHOD AND DEVICE FOR DETERMINING IMAGE QUALITY - In a method and a device for determining an image quality of an image sequence comprising several images, the images are reconstructed from a data stream encoded by a predictive encoding process, and a respective flicker indicator is determined for an image range of the respective images of the image sequence, wherein the respective flicker indicator displays by two states whether flickering occurs or not in the image range of the respective image, an overall flicker indicator being generated such that the overall flicker indicator corresponds to that number of flicker indicators which display flickering, and the image quality being generated by division of the overall flicker indicator by a number of specific flicker indicators. | 11-04-2010 |