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Demircin
Mehmet U. Demircin, Dallas, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20090055471 | MEDIA STREAMING WITH ONLINE CACHING AND PEER-TO-PEER FORWARDING - A system, method and apparatus are disclosed herein for media streaming. In one embodiment, the system comprises one or more media servers to serve media content and a plurality of peers communicably coupled to one or more other peers of the plurality of peers and at least one of the one or more media servers to receive segments of media content, where at least one of peers allocates a set of resources for serving the segments of media content including cache memory to store the segments and media files and uplink bandwidth to send the segments of media content to the one or more peers to which the one peer is communicably coupled. The system also includes a first control server to track media content demand and the allocated resources of the plurality of peers to determine which peer should cache which segment of the media file and to return peer location information specifying the one or more peer locations from which each peer is to receive each segment of each media content requested. The control server is operable to send the location information to each peer. In one embodiment, the one control server is also operable to calculate a utility of each caching option and enforce it by sending triggers to the peers to initiate the caching at those peers. | 02-26-2009 |
Mehmet Umut Demircin, Dallas, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20100097250 | Parallel CABAC Decoding for Video Decompression - A method of video decoding is provided that includes receiving a data stream comprising a sequence of syntax elements that were compressed using context-adaptive binary arithmetic coding (CABAC), such that the encoding of each bin of a bin string representative of a syntax element was performed by arithmetic encoding. Two consecutive bins of a syntax element are decoded in parallel. Speculative computation and prefetching is used to reduce the critical path and thereby improve processing speed. | 04-22-2010 |
| 20100098155 | Parallel CABAC Decoding Using Entropy Slices - A method of video encoding is provided that includes performing context-adaptive binary arithmetic coding (CABAC) on a plurality of syntax element values in a slice to generate a plurality of entropy-encoded syntax element values, generating an entropy slice header to identify the plurality of entropy-encoded syntax element values as an entropy slice, wherein the entropy slice header comprises context model initialization information, and outputting the entropy slice header and the plurality of entropy encoded syntax element values. | 04-22-2010 |
Mehmet Umut Demircin, Kecioren TR
| Patent application number | Description | Published |
|---|---|---|
| 20110206289 | Guaranteed-Rate Tiled Image Data Compression - A method of compressing digital image data is provided that includes, for each image data block in a plurality of image data blocks in the digital image data, transforming image data in the image data block to convert the image data to a low-frequency coefficient and a plurality of high-frequency coefficients, computing a predicted low-frequency coefficient for the image data block based on at least one neighboring image data block in the plurality of image data blocks, computing a residual low-frequency coefficient based on the predicted low-frequency coefficient and the low-frequency coefficient, quantizing the plurality of high-frequency coefficients, and entropy coding the residual low-frequency coefficient and the quantized high-frequency coefficients. | 08-25-2011 |
| 20110228858 | CABAC Decoder with Decoupled Arithmetic Decoding and Inverse Binarization - An encoded bitstream of entropy encoded video data is received by a video decoder. The encoded bitstream represents syntax elements of a sequence of coding blocks. The sequence of coding blocks is recovered by processing a bin sequences associated with each coding block in a processing pipeline, wherein a defined amount of time is allocated to process each coding block in the processing pipeline. The encoded bitstream is arithmetically decoded to produce each bin sequence. The arithmetic decoder is time-wise decoupled from the processing pipeline by storing a plurality of the bin sequences in a buffer memory. | 09-22-2011 |
Mehmet Umut Demircin, Ankara TR
| Patent application number | Description | Published |
|---|---|---|
| 20110235706 | REGION OF INTEREST (ROI) VIDEO ENCODING - A method of encoding an image frame in a video encoding system. The image frame has a region of interest (ROI) and a non region of interest (non-ROI). In the method, quantization scale for the image frame based on rate control information is determined. ROI statistics based on residual energy of the ROI and non-ROI is then calculated. Quantization scale for the image frame based on ROI priorities and ROI statistics is calculated. Further, quantization scales for ROI and non-ROI based on ROI priorities are determined. | 09-29-2011 |