Nvidia Corporation

Jaya Shrikrishna Panvalkar

Vinayak Jayaram Pore

Pravin Karandikar

Parag Chaurasia

Shantanu Nath

Bhat Himanshu

Vindhya Tallamraju

Hatwankar Swapna

Nair Bijay

A method to detect (identify) wrongly decoded data (I type macro-blocks), which can be subsequently concealed by error concealment techniques, thereby improving the visual quality of a decoded stream, is provided. Additionally, a method is provided. In use, a set of macro-block data is selected for validation. Additionally, a set of suspicious macro blocks is selected from the set of macro-block data based on location information for each suspicious macro block.

Method and apparatus to check for wrongly decoded macroblocks in streaming multimedia applications

A method for concealing errors in compressed images in the JPEG 2000 format diosclosed. JPEG2000 (ISO/IEC 15444) is the new standard for image compression catering to different needs of various applications. This standard is much more advanced than JPEG and is rich in features. An Error concealment method in JPEG 2000 is provided which mainly deals with estimating the lost regions in a Wavelet Transformed image and works in Wavelet Transform Domain. This results in optimum error concealment and therefore, The method is applied before taking Inverse DWT.

Method and apparatus for error concealment for JPEG 2000 compressed images and data block-based video data

A method is described for synchronously processing and rendering digitized media data streams where each data stream is made up of a sequence of samples. The described method includes processing each data stream in a single task. The method includes the generating the timing signals for different data streams from a single operating system timer and further processing the media in the data stream synchronously in one task using this timing signal.

Media processing engine framework

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Pune, India

Jaya Shrikrishna Panvalkar