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Alexandros Tourapis patents

Recent patents with Alexandros Tourapis listed as an inventor - additional entries may be under other spellings.


Alexandros Tourapis - Related organizations: Apple Inc. patents, Dolby Laboratories Licensing Corporation patents

Chroma quantization in video coding

03/16/17 - 20170078667 - A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset values. Alternatively, a table of possible sets of chroma QP offset values is specified in the header area of
Inventors: Alexandros Tourapis, Guy Cote

Systems and methods for multi-layered frame-compatible video delivery

12/29/16 - 20160381343 - Multi-layered frame-compatible video delivery is described. Multi-layered encoding and decoding methods, comprising a base layer and at least one enhancement layer with reference processing, are provided. In addition, multi-layered encoding and decoding methods with inter-layer dependencies are described. Encoding and decoding methods that are capable of frame-compatible 3D video delivery
Inventors: Athanasios Leontaris, Alexandros Tourapis, Peshala V. Pahalawatta, Kevin Stec, Walter Husak

Adaptive streaming of video data over a network

09/29/16 - 20160285940 - A method for adaptive streaming of video data over a network is disclosed. The method includes receiving, by one or more decoders of a video streaming client, first video information of a video data stream with one or more operations of first complexity. The method further includes obtaining client-related information
Inventors: Yuwen He, Alexandros Tourapis, Peshala V. Pahalawatta, Athanasios Leontaris

Optimized filter selection for reference picture processing

05/19/16 - 20160142709 - Reference processing may be used in a video encoder or decoder to derive reference pictures that are better correlated with a source image to be encoded or decoded, which generally yields better coding efficiency. Methods for filter selection for a reference processing unit adapted for use in a video codec
Inventors: Peshala V. Pahalawatta, Yuwen He, Alexandros Tourapis

Chroma quantization in video coding

04/07/16 - 20160100170 - A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset values. Alternatively, a table of possible sets of chroma QP offset values is specified in the header area of
Inventors: Alexandros Tourapis, Guy Cote

Directed interpolation and data post-processing

03/31/16 - 20160094859 - An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor
Inventors: Alexandros Tourapis, Athanasios Leontaris, Peshala V. Pahalawatta, Kevin J. Stec

Encoding and decoding architecture of checkerboard multiplexed image data

03/17/16 - 20160080772 - A device includes a coder or a codec configured for interleaved image data utilizing diamond shaped blocks for motion estimation and/or motion compensation and utilizing square or orthogonal transforms of residual data. In various embodiments, the decoder may be configured, among others, to perform de-blocking on edges of the diamond
Inventors: Alexandros Tourapis, Athanasios Leontaris, Peshala V. Pahalawatta

Compatible stereoscopic video delivery

03/10/16 - 20160073084 - Stereoscopic images are subsampled and placed in a “checkerboard” pattern in an image. The image is encoded in a monoscopic video format. The monoscopic video is transmitted to a device where the “checkerboard” is decoded. Portions of the checkerboard (e.g., “black” portions) are used to reconstruct one of the stereoscopic
Inventors: Walter J. Husak, David Ruhoff, Alexandros Tourapis, Athanasios Leontaris

Overlapped rate control for video splicing applications

03/03/16 - 20160065957 - Rate control techniques are provided for encoding an input video sequence into a compressed coded bitstream with multiple coding passes. The final coding pass may comprise final splices with non-overlapping frames that do not extend into neighboring final splices. A final splice in the final coding pass may correspond to
Inventors: Athanasios Leontaris, Alexandros Tourapis

Chroma quantization in video coding

03/12/15 - 20150071345 - A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset values. Alternatively, a table of possible sets of chroma QP offset values is specified in the header area of
Inventors: Alexandros Tourapis, Guy Cote

Chroma quantization in video coding

03/12/15 - 20150071344 - A method of signaling additional chroma QP offset values that are specific to quantization groups is provided, in which each quantization group explicitly specifies its own set of chroma QP offset values. Alternatively, a table of possible sets of chroma QP offset values is specified in the header area of
Inventors: Alexandros Tourapis, Guy Cote


### Alexandros Tourapis patent invention listings

The bibliographic references displayed about Alexandros Tourapis's patents are for a recent sample of Alexandros Tourapis's publicly published patent applications. The inventor/author may have additional bibliographic citations listed at the USPTO.gov. FreshPatents.com is not associated or affiliated in any way with the author/inventor or the United States Patent/Trademark Office but is providing this non-comprehensive sample listing for educational and research purposes using public bibliographic data published and disseminated from the United States Patent/Trademark Office public datafeed. This information is also available for free on the USPTO.gov website. If Alexandros Tourapis filed recent patent applications under another name, spelling or location then those applications could be listed on an alternate page. If no bibliographic references are listed here, it is possible there are no recent filings or there is a technical issue with the listing--in that case, we recommend doing a search on the USPTO.gov website.

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