Texas Instruments Corporation

Connaught Electronics Limited

Venugopala Krishna Madumbu

Pramod Kumar Swami

Anurag Mithalal Jain

David Gottardo

Jacques Michel Bride

Raghavendra Kudva

The invention relates to a method for converting (S) an image () by an evaluation unit () of a motor vehicle (), wherein the image () is captured from an environmental region () of a motor vehicle () by a camera () of the motor vehicle (), and the image () includes an alpha channel () and at least one color channel in a predetermined color model, and the image () is converted into an alpha channel () and a Y channel () of a YUV color model and a U channel () of the YUV color model and a V channel () of the YUV color model, wherein in converting the image (), the alpha channel () and the Y channel () and the U channel () and the V channel () are embedded in a converted image () of the image ().

Method for converting an image, driver assistance system and motor vehicle

This invention calculates motion vectors during video encoding for sub-sampled data using a hierarchical search. The motion vector calculation employs a prior original frame as the reference frame rather than a reconstructed frame according to the prior art.

Hierarchical motion estimation using original frame for sub-sampled reference

This invention is a method of video encoding. The number N macroblocks stored in a temporary buffer depends upon an estimated number of motion vectors. N macroblocks of current and prior frame data is transferred to the temporary buffer. The invention determines for each macroblock whether to be inter frame predicted or intra frame predicted. The inter and intra macroblocks are separately encoded based upon this determination and stored in an output buffer. Output macroblocks are output from the output buffer in raster scan order. This technique permits the process to loop over differing number of macroblocks in differing parts of the encoding process. Entropy encoding complexity from separating inter and intra macroblock encoding is avoided by separating a symbol generation phase from an encoding phase.

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Bengaluru, India

Venugopala Krishna Madumbu