Stmicroelectronics International N.v.

Stmicroelectronics S.r.l.

Stmicroelectronics Pvt. Ltd.

Sumit Johar

Ravin Sachdeva

Surinder Pal Singh

Emiliano Mario Piccinelli

Kaushik Saha

Megha Agarwal

Daniele Alfonso

SurinderPal Singh

Saha Kaushik

Video encoders and decoders and video encoding and decoding methods are provided. A video encoder includes an input buffer configured to receive a video data stream and to supply current frame data, a frame buffer configured to store reconstructed frame data, and an encoder circuit configured to read reference frame data from the frame buffer, to encode the current frame data received from the input buffer using the reference frame data and to write the reconstructed frame data to the frame buffer. The encoder circuit may be configured to write the reconstructed frame data by overwriting the reference frame data in the frame buffer.

Video encoders/decoders and video encoding/decoding methods for video surveillance applications

A system and method transcodes an input video bit stream having a first encoding profile into an output video bit stream having a second encoding profile. The system includes a first module () and a second module (). The system further includes a memory module (). The first module () decodes the input video bit stream for generating pixel data and macroblock specifications. The second module () encodes the pixel data and the macroblock specifications for constructing the output video bit stream. The memory module () includes a first buffer module and a second buffer module. The first buffer module stores the pixel data and the second buffer module stores the macroblock specifications.

System and method for transcoding data from one video standard to another video standard

An embodiment relates to a decoder for decoding CABAC encoded video data in real time for HDTV applications. The decoder comprises a binary arithmetic decoder block for converting an input bit stream into a bin string, a context memory for storing a plurality of context values, and a plurality of finite state machines. Each of the finite state machines is adapted for decoding a particular one of the H.264 syntax elements by providing the binary arithmetic decoder block with an index of the relevant context value within the context memory and by converting the resulting bin stream into a value of the current syntax element. In this manner, a performance of one bin per cycle may be achieved.

System for entropy decoding of H.264 video for real time HDTV applications

An image processing arrangement includes an input to receive an indicator of a power characteristic related to an image processing arrangement and an image processor to process an image based on the indicator of the power characteristic.

Image processing arrangement illuminating regions of an image based on motion

An embodiment of the present disclosure relates to system comprises an encoding device. Said encoding device comprises a compression unit, a quantizer, a bit estimator, a bit rate encoder and a variable length encoder. An embodiment also is a method of encoding. Said method estimates a number of bits to encode a macroblock after compressing the data stream. Then the estimated bit encoded by a bit rate encoder and further quantized by the quantizer to get the final encoded bit stream. The number of bits required to encode a macroblock is estimated after the quantization process and before the encoding process. The macroblock bit estimator estimates the number of bits required to encode a particular macroblock depending on the quantized AC coefficients of that macroblock and the quantized AC coefficients of the neighboring frames normalized at a macroblock level.

System and method for video encoding

Rate control algorithms are adapted to cover multiple encoding standards. A rate controller includes an input adaptation interface, a core rate controller, and an output adaptation interface. The input adaptation interface converts rate control input parameters of a target encoding standard to corresponding native control input parameters of the rate controller. The core rate controller is coupled to the output of the input adaptation interface generating output parameters conforming to its native encoding standard. The output adaptation interface is coupled to the output of the core rate controller converting the generated output parameters to equivalent rate control output parameters conforming to the target encoding standard.

Adaptive rate control to cover multiple encoding standards

A system and method transcodes an input video bit stream having a first encoding profile into an output video bit stream having a second encoding profile. The system includes a first module and a second module. The system further includes a memory module. The first module decodes the input video bit stream for generating pixel data and macroblock specifications. The second module encodes the pixel data and the macroblock specifications for constructing the output video bit stream. The memory module includes a first buffer module and a second buffer module. The first buffer module stores the pixel data and the second buffer module stores the macroblock specifications.

Systems and methods are for implementing a NSV2SV converter that converts a non-scalable video signal to a scalable video signal. In an implementation, a non-scalable video signal encoded in H.264/AVC standard is decoded and segmented into spatial data and motion data. The spatial data is resized into a desired resolution by down-sampling the spatial data. The motion data is also resized in every layer, except in the top layer, of a scalable video coding (SVC) encoder by using an appropriate measure. Further, the motion data is refined based on the resized spatial data in every layer of the SVC encoder. The refined motion data and the down-sampled spatial data are then transformed and entropy encoded in the SVC standard in every layer. The SVC encoded output from every layer is multiplexed to produce a scalable video signal.

Growing community of inventors

New Delhi, India

Sumit Johar