Patent application number | Description | Published |
20110188703 | System and Method for Securing Media Content - A system and method for securing media content are provided. A method for distributing security media content includes embedding a marking payload into media content, thereby producing embedded media content, applying a transform to the embedded media content, thereby producing secured media content, and distributing the secured media content. The marking payload is embedded based on perceptual information regarding the media content. | 08-04-2011 |
20110191577 | Media Processing Devices For Adaptive Delivery Of On-Demand Media, And Methods Thereof - In one embodiment, a method of streaming media includes partitioning a media stream to be transmitted into a first stream of media segments at a media server. The first stream of the media segments has a first sequence. An index table is generated to identify the first sequence of the first stream of the media segments. The index table is encrypted using a key. A second stream of the media segments is generated. The second stream has a second sequence, which is random relative to the first sequence. The encrypted index table and a transcoded media stream having the second stream of the media segments are transmitted. | 08-04-2011 |
20110191587 | Media Processing Devices With Joint Encryption-Compression, Joint Decryption-Decompression, And Methods Thereof - In one embodiment, a method of adaptive media streaming includes receiving a cipher media stream at a media device. The cipher media stream is compliant with a media compression standard. The cipher media stream is decrypted and decoded using an inverse stream cipher algorithm and a compressed media stream is generated by combining the cipher media stream with a keystream. | 08-04-2011 |
20120076206 | Compressed Domain Video Watermarking - In accordance with an embodiment, a method of watermarking encoded video frames includes electronically receiving a bitstream comprising a plurality of encoded video frames that are divided into a plurality of macro-blocks, determining macro-block dependencies based on prediction information in the received bitstream, determining a set of macro-blocks having a minimal number of macro-block dependencies, and embedding a watermark in a plurality of macro-blocks selected from the set of macro-blocks having the minimal number of macro-block dependencies. | 03-29-2012 |
20120278441 | System and Method for Quality of Experience Estimation - A system and method for quality of experience estimation are provided. A method for communications device operations includes selecting a portion of a media content stream, processing the portion to produce a processed portion, generating a signature from the processed portion, transmitting the signature, and transmitting the media content stream. | 11-01-2012 |
20130188712 | Compressed Domain Watermarking with Reduced Error Propagation - Error drift during compressed domain watermarking can be reduced by embedding watermarking symbols in macroblocks that have relatively low influence on pixel values of other macroblocks during video decompression. This influence may be quantified using compression influence values (CIVs), which may be computed/assigned based on prediction dependency relationships amongst the various macroblocks in a sequence of frames. To wit, high CIVs are assigned to macroblocks that heavily influence the pixel values of other macroblocks during intra-frame/inter-frame prediction, while low CIVs are assigned to macroblocks that have little influence over the pixel values of other macroblocks. Macroblocks having the lowest CIVs may be selected for embedding compressed domain watermarking bits/symbols. Alternatively, macroblocks having high CIVs may be excluded from a pool of candidate macroblocks that are eligible for carrying embedded compressed domain watermarking bits/symbols. | 07-25-2013 |
20140321763 | Communication System with Compressive Sensing - Systems and methods for communication systems with compressive sensing are disclosed. In one embodiment, a method of signal processing includes receiving a data packet at a processor. The data packet includes compressively measured data in wavelet transform coefficients of a signal. The signal is reconstructed using a clustering property of the wavelet transform coefficients. | 10-30-2014 |
20140348425 | Delta Interpolation for Upsampling Imaging Solution - An apparatus comprising one or more processors configured to process a first image at a first resolution to generate a first solved image at the first resolution, determine a difference between the first solved image and a function of the first image, and generate a second solved image at a second resolution higher than the first resolution based at least in part on the difference between the first solved image and the function of the first image. | 11-27-2014 |
20140348439 | System and Method for Compressing Images and Video - A system and method for image and video compression using compressive sensing is provided. An embodiment method for compressing an image having a plurality of image blocks includes selecting an image block from the plurality of image blocks to compress, computing a sum of sinusoidal signals at different frequencies and amplitudes representation for the selected image block, quantizing the amplitudes of the sinusoidal signals at different frequencies, and saving the quantized amplitudes as a first compressed image block. The method also includes truncating the quantized amplitudes, thereby producing truncated quantized amplitudes, saving the truncated quantized amplitudes as a second compressed image block, and selecting either the first compressed image block or the second compressed image block as a final compressed image block. The selecting is based on a measure of the quality of the first compressed image block and the second compressed image block. | 11-27-2014 |