Desappan
Kumar Desappan, C.v. Raman IN
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20160117569 | EFFICIENT FEATURE POINT SELECTION - Systems and methods are provided for selecting feature points within an image. A plurality of candidate feature points are identified in the image. A plurality of feature points are selected for each of the plurality of candidate feature points, a plurality of sets of representative pixels. For each set of representative pixels, a representative value is determined as one of a maximum chromaticity value and a minimum chromaticity value from the set of representative pixels. A score is determined for each candidate feature point from the representative values for the plurality of sets of representative pixels associated with the candidate feature point. The feature points are selected according to the determined scores for the plurality of candidate feature points. | 04-28-2016 |
Kumar Arrakutti Desappan, Ekambara Kuppam IN
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20090245673 | SHARED ERROR RESILIENCY PATH THROUGH COEFFICIENT REORDERING - The method, system, and apparatus of a shared error resiliency path through coefficient reordering is disclosed. In on embodiment, determining that an input data is data-partitioned, performing a discrete cosine transform and a quantization of the input data to form a quantized data, separating a first coefficient representing a DC coefficient of the quantized data for each block of the input data, rearranging other coefficients representing AC coefficients of the quantized data for each block of the input data in a fashion produces a zig-zag scan output similar to that of a non-data-partitioned data, bypassing a DC encoding module, determining whether any of the rearranged AC coefficients of the quantized data need to be encoded, performing a zig-zag scan on the rearranged AC coefficients of the quantized data when they need to be encoded, and encoding the rearranged AC coefficients of the quantized data based on the zig-zag scan. | 10-01-2009 |
Kumar Arrakutti Desappan, Bangalore IN
Patent application number | Description | Published |
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20120183058 | MACRO-BLOCK ENCODING OF SKIPPED VIDEO FRAMES - A video system includes an encoder for generating a compressed bit stream in response to a received video signal. A transitional location is located in the bit stream that includes skip macro-block encoding, where the transitional location provides an indication where a linear relationship starts to exist between a length of the encoded bit stream and a length of a number of skipped macro-blocks. The skipped macro-blocks in the bit stream before the transitional location are encoded using a predetermined nonlinear relationship between the length of the encoded bit stream and the length of the number of skipped macro-blocks, whereas skipped macro-blocks in the bit stream are encoded using a linear relationship between the length of the encoded bit stream and the length of the number of skipped macro-blocks. | 07-19-2012 |