Patents by Inventor Mihir Narendra Mody

Mihir Narendra Mody has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190258891
    Abstract: A method for analyzing images to generate a plurality of output features includes receiving input features of the image and performing Fourier transforms on each input feature. Kernels having coefficients of a plurality of trained features are received and on-the-fly Fourier transforms (OTF-FTs) are performed on the coefficients in the kernels. The output of each Fourier transform and each OTF-FT are multiplied together to generate a plurality of products and each of the products are added to produce one sum for each output feature. Two-dimensional inverse Fourier transforms are performed on each sum.
    Type: Application
    Filed: May 1, 2019
    Publication date: August 22, 2019
    Inventors: Mihir Narendra Mody, Manu Mathew, Chaitanya Satish Ghone
  • Publication number: 20190261037
    Abstract: Several systems and methods for processing of video frames based on one or more video formats are disclosed. In an embodiment, a video processing system comprises a memory and a video engine. The memory stores a plurality of video frames, a primary set of instructions and a plurality of secondary sets of processing instructions. Each secondary set of processing instructions is associated with a video format. The video engine is loaded with the primary set of instructions and is configured to fetch one or more video frames and a secondary set of processing instructions from the memory based on the loaded primary set of instructions. The fetched secondary set of processing instructions corresponds to a video format determined for processing of the one or more video frames. The video engine performs processing of the one or more video frames based on the secondary set of processing instructions.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventor: Mihir Narendra Mody
  • Patent number: 10380746
    Abstract: An optical flow system includes a binary mask generation circuit and an optical flow circuit. The binary mask generation circuit is configured to receive a plurality of points of interest from a captured image that contains an array of pixels arranged as rows and columns and includes width lines that correspond to the rows and height lines that correspond to the columns. The binary mask generation circuit is also configured to generate a binary mask based on the plurality of points of interest. The binary mask includes a representation of a subset of the plurality of points of interest. The optical flow circuit is configured to receive the binary mask and generate an optical flow map of the subset of the plurality of points of interest.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: August 13, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Hetul Sanghvi, Mihir Narendra Mody, Mike Lachmayr, Anish Reghunath, Rajat Sagar
  • Publication number: 20190235927
    Abstract: A hardware thread scheduler (HTS) is provided for a multiprocessor system. The HTS is configured to schedule processing of multiple threads of execution by resolving data dependencies between producer modules and consumer modules for each thread. Pattern adaptors may be provided in the scheduler that allows mixing of multiple data patterns across blocks of data. Transaction aggregators may be provided that allow re-using the same image data by multiple threads of execution while the image date remains in a given data buffer. Bandwidth control may be provided using programmable delays on initiation of thread execution. Failure and hang detection may be provided using multiple watchdog timers.
    Type: Application
    Filed: April 8, 2019
    Publication date: August 1, 2019
    Inventors: Niraj Nandan, Hetul Sanghvi, Mihir Narendra Mody
  • Patent number: 10366471
    Abstract: A method of de-mosaicing pixel data from an image processor includes generating a pixel block that includes a plurality of image pixels. The method also includes determining a first image gradient between a first set of pixels of the pixel block and a second image gradient between a second set of pixels of the pixel block. The method also includes determining a first adaptive threshold value based on intensity of a third set of pixels of the pixel block. The pixels of the third set of pixels are adjacent to one another. The method also includes filtering the pixel block in a vertical, horizontal, or neutral direction based on the first and second image gradients and the first adaptive threshold value utilizing a plurality of FIR filters to generate a plurality of component images.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: July 30, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Shashank Dabral, Mihir Narendra Mody, Denis Beaudoin, Niraj Nandan, Gang Hua
  • Publication number: 20190188066
    Abstract: Methods, apparatus, and articles of manufacture providing an efficient safety mechanism for signal processing hardware are disclosed. An example apparatus includes an input interface to receive an input signal; a hardware accelerator to process the input signal, the hardware accelerator including: unprotected memory to store non-critical data corresponding to the input signal; and protected memory to store critical data corresponding to the input signal; and an output interface to transmit the processed input signal.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 20, 2019
    Inventors: Mihir Narendra Mody, Niraj Nandan, Hetul Sanghvi, Manoj Koul
  • Patent number: 10325173
    Abstract: A method for analyzing images to generate a plurality of output features includes receiving input features of the image and performing Fourier transforms on each input feature. Kernels having coefficients of a plurality of trained features are received and on-the-fly Fourier transforms (OTF-FTs) are performed on the coefficients in the kernels. The output of each Fourier transform and each OTF-FT are multiplied together to generate a plurality of products and each of the products are added to produce one sum for each output feature. Two-dimensional inverse Fourier transforms are performed on each sum.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: June 18, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mihir Narendra Mody, Manu Mathew, Chaitanya Satish Ghone
  • Patent number: 10327017
    Abstract: Several systems and methods for processing of video frames based on one or more video formats are disclosed. In an embodiment, a video processing system comprises a memory and a video engine. The memory stores a plurality of video frames, a primary set of instructions and a plurality of secondary sets of processing instructions. Each secondary set of processing instructions is associated with a video format. The video engine is loaded with the primary set of instructions and is configured to fetch one or more video frames and a secondary set of processing instructions from the memory based on the loaded primary set of instructions. The fetched secondary set of processing instructions corresponds to a video format determined for processing of the one or more video frames. The video engine performs processing of the one or more video frames based on the secondary set of processing instructions.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: June 18, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Mihir Narendra Mody
  • Patent number: 10321135
    Abstract: The disclosure provides a sample adaptive offset (SAO) encoder. The SAO encoder includes a statistics collection (SC) block and a rate distortion optimization (RDO) block coupled to the SC block. The SC block receives a set of deblocked pixels and a set of original pixels. The SC block categorizes each deblocked pixel of the set of deblocked pixels in at least one of a plurality of band and edge categories. The SC block estimates an error in each category as difference between a deblocked pixel of the set of deblocked pixels and corresponding original pixel of the set of original pixels. The RDO block determines a set of candidate offsets associated with each category and selects a candidate offset with a minimum RD cost. The minimum RD cost is used by a SAO type block and a decision block to generate final offsets for the SAO encoder.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: June 11, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Hrushikesh Tukaram Garud, Mihir Narendra Mody, Soyeb Nagori
  • Patent number: 10321163
    Abstract: A VP8 video decoder is implemented by partitioning the required functions across multiple sub systems, with an optimal mapping to existing functional blocks. Key optimizations include the reuse of hardware designed for prior generation VP6 and VP7 decoders. In order to reduce implementation complexity, cost and power consumption, a non-exact, approximate deblocking loop filter is implemented.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: June 11, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mihir Narendra Mody, Chaitanya S Ghone, Joseph Meehan
  • Patent number: 10296393
    Abstract: A hardware thread scheduler (HTS) is provided for a multiprocessor system. The HTS is configured to schedule processing of multiple threads of execution by resolving data dependencies between producer modules and consumer modules for each thread. Pattern adaptors may be provided in the scheduler that allows mixing of multiple data patterns across blocks of data. Transaction aggregators may be provided that allow re-using the same image data by multiple threads of execution while the image date remains in a given data buffer. Bandwidth control may be provided using programmable delays on initiation of thread execution. Failure and hang detection may be provided using multiple watchdog timers.
    Type: Grant
    Filed: September 19, 2016
    Date of Patent: May 21, 2019
    Assignee: Texas Instruments Incorporated
    Inventors: Niraj Nandan, Hetul Sanghvi, Mihir Narendra Mody
  • Publication number: 20190130534
    Abstract: A method for filtering noise for imaging includes receiving an image frame having position and range data. A filter size divides the frame into filter windows for processing each of the filter windows. For the first pixel, a space to the center pixel and a range difference between this pixel and the center pixel is determined and used for choosing a selected weight from weights in a 2D weight LUT including weighting for space and range difference, a filtered range value is calculated by applying the selected 2D weight to the pixel, and the range, filtered range value and selected 2D weight are summed. The determining, choosing, calculating and summing are repeated for at least the second pixel. A total sum of contributions from the first and second pixel are divided by the sum of selected 2D weights to generate a final filtered range value for the center pixel.
    Type: Application
    Filed: November 1, 2018
    Publication date: May 2, 2019
    Inventors: Mihir Narendra Mody, Shashank Dabral, Jesse Gregory Villarreal, William Wallace, Niraj Nandan
  • Publication number: 20190114786
    Abstract: An optical flow system includes a binary mask generation circuit and an optical flow circuit. The binary mask generation circuit is configured to receive a plurality of points of interest from a captured image that contains an array of pixels arranged as rows and columns and includes width lines that correspond to the rows and height lines that correspond to the columns. The binary mask generation circuit is also configured to generate a binary mask based on the plurality of points of interest. The binary mask includes a representation of a subset of the plurality of points of interest. The optical flow circuit is configured to receive the binary mask and generate an optical flow map of the subset of the plurality of points of interest.
    Type: Application
    Filed: October 16, 2017
    Publication date: April 18, 2019
    Inventors: Hetul SANGHVI, Mihir Narendra MODY, Mike LACHMAYR, Anish REGHUNATH, Rajat SAGAR
  • Publication number: 20190096077
    Abstract: An apparatus and method for geometrically correcting an arbitrary shaped input frame and generating an undistorted output frame. The method includes capturing arbitrary shaped input images with multiple optical devices and processing the images, identifying redundant blocks and valid blocks in each of the images, allocating an output frame with an output frame size and dividing the output frame into regions shaped as a rectangle, programming the apparatus and disabling processing for invalid blocks in each of the regions, fetching data corresponding to each of the valid blocks and storing in an internal memory, interpolating data for each of the regions with stitching and composing the valid blocks for the output frame and displaying the output frame on a display module.
    Type: Application
    Filed: January 24, 2018
    Publication date: March 28, 2019
    Inventors: Rajasekhar Reddy Allu, Niraj Nandan, Mihir Narendra Mody, Gang Hua, Brian Okchon Chae, Shashank Dabral, Hetul Sanghvi, Vikram VijayanBabu Appia, Sujith Shivalingappa
  • Publication number: 20190096041
    Abstract: An apparatus and method for geometrically correcting a distorted input frame and generating an undistorted output frame. The apparatus includes an external memory block that stores the input frame, a counter block to compute output coordinates of the output frame for a region based on a block size of the region, a back mapping block to generate input coordinates corresponding to each of the output coordinates, a bounding module to compute input blocks corresponding to each of the input coordinates, a buffer module to fetch data corresponding to each of the input blocks, an interpolation module to interpolate data from the buffer module and a display module that receives the interpolated data for each of the regions and stitch an output image. The method includes determining the size of the output block based on a magnification data.
    Type: Application
    Filed: September 25, 2017
    Publication date: March 28, 2019
    Inventors: Rajasekhar Reddy Allu, Niraj Nandan, Mihir Narendra Mody, Gang Hua, Brian Okchon Chae, Shashank Dabral, Hetul Sanghvi, Vikram VijayanBabu Appia, Sujith Shivalingappa
  • Publication number: 20190096042
    Abstract: A method for geometrically correcting a distorted input frame and generating an undistorted output frame includes capturing and storing an input frame in an external memory, allocating an output frame with an output frame size and dividing the output frame into output blocks, computing a size of the input blocks in the input image corresponding to each output blocks, checking if the size of the input blocks is less than the size of the internal memory and if not dividing until the required input block size of divided sub blocks is less than the size of the internal memory, programming an apparatus with input parameters, fetching the input blocks into an internal memory, processing each of the divided sub blocks sequentially and processing the next output block in step until all the output blocks are processed; and composing the output frame for each of the blocks in the output frame.
    Type: Application
    Filed: March 21, 2018
    Publication date: March 28, 2019
    Inventors: Rajasekhar Reddy Allu, Niraj Nandan, Mihir Narendra Mody, Gang Hua, Brian Okchon Chae, Shashank Dabral, Hetul Sanghvi, Vikram VijayanBabu Appia, Sujith Shivalingappa
  • Publication number: 20190073740
    Abstract: A computer vision system is provided that includes a camera capture component configured to capture an image from a camera, a memory, and an image compression decompression engine (ICDE) coupled to the memory and configured to receive each line of the image, and compress each line to generate a compressed bit stream. To compress a line, the ICDE is configured to divide the line into compression units, and compress each compression unit, wherein to compress a compression unit, the ICDE is configured to perform delta prediction on the compression unit to generate a delta predicted compression unit, compress the delta predicted compression unit using exponential Golomb coding to generate a compressed delta predicted compression unit, and add the compressed delta predicted compression unit to the compressed bit stream.
    Type: Application
    Filed: September 5, 2017
    Publication date: March 7, 2019
    Inventors: Hrushikesh Tukaram Garud, Ankit Ajmani, Soyeb Noormohammed Nagori, Mihir Narendra Mody
  • Publication number: 20190005656
    Abstract: A computer vision system is provided that includes an image generation device configured to generate consecutive two dimensional (2D) images of a scene, and a dense optical flow engine (DOFE) configured to determine a dense optical flow map for pairs of the consecutive 2D images, wherein, for a pair of consecutive 2D images, the DOFE is configured to perform a predictor based correspondence search for each paxel in a current image of the pair of consecutive 2D images, wherein, for an anchor pixel in each paxel, the predictor based correspondence search evaluates a plurality of predictors to select a best matching pixel in a reference image of the pair of consecutive 2D images, and determine optical flow vectors for each pixel in a paxel based on the best matching pixel selected for the anchor pixel of the paxel.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 3, 2019
    Inventors: Hetul Sanghvi, Mihir Narendra Mody, Niraj Nandan, Anish Reghunath, Michael Peter Lachmayr
  • Publication number: 20190005335
    Abstract: A computer vision system is provided that includes an image generation device configured to capture consecutive two dimensional (2D) images of a scene, a first memory configured to store the consecutive 2D images, a second memory configured to store a growing window of consecutive rows of a reference image and a growing window of consecutive rows of a current image, wherein the reference image and the current image are a pair of consecutive 2D images stored in the first memory, a third memory configured to store a sliding window of pixels fetched from the growing window of the reference image, wherein the pixels in the sliding window are stored in tiles, and a dense optical flow engine (DOFE) configured to determine a dense optical flow map for the pair of consecutive 2D images, wherein the DOFE uses the sliding window as a search window for pixel correspondence searches.
    Type: Application
    Filed: June 29, 2017
    Publication date: January 3, 2019
    Inventors: Hetul Sanghvi, Mihir Narendra Mody, Niraj Nandan, Anish Reghunath, Michael Peter Lachmayr
  • Publication number: 20190005375
    Abstract: A CNN based-signal processing includes receiving of an encrypted output from a first layer of a multi-layer CNN data. The received encrypted output is subsequently decrypted to form a decrypted input to a second layer of the multi-layer CNN data. A convolution of the decrypted input with a corresponding decrypted weight may generate a second layer output, which may be encrypted and used as an encrypted input to a third layer of the multi-layer CNN data.
    Type: Application
    Filed: October 11, 2017
    Publication date: January 3, 2019
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Mihir Narendra Mody, Veeramanikandan Raju, Chaitanya Ghone, Deepak Poddar