公开(公告)号：US20190096042A1

公开(公告)日：2019-03-28

申请号：US15927820

申请日：2018-03-21

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Rajasekhar Reddy Allu ,  Niraj Nandan ,  Mihir Narendra Mody ,  Gang Hua ,  Brian Okchon Chae ,  Shashank Dabral ,  Hetul Sanghvi ,  Vikram VijayanBabu Appia ,  Sujith Shivalingappa

IPC: G06T5/00 ,  G06T3/00

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.

公开(公告)号：US20170195564A1

公开(公告)日：2017-07-06

申请号：US15298214

申请日：2016-10-19

Applicant: Texas Instruments Incorporated

Inventor： Vikram VijayanBabu Appia ,  Sujith Shivalingappa ,  Brijesh Rameshbhai Jadav ,  Hemant Hariyani ,  Shashank Dabral ,  Mayank Mangla

IPC: H04N5/232 ,  H04N7/18 ,  H04N5/247 ,  B60R1/00 ,  G06T15/20 ,  G06T15/06 ,  G06T17/20 ,  G06T7/00 ,  G06T3/00 ,  G06T19/20

CPC classification number: H04N5/23238 ,  B60R1/00 ,  B60R2300/105 ,  B60R2300/202 ,  B60R2300/306 ,  B60R2300/802 ,  G06T3/0093 ,  G06T15/06 ,  G06T15/205 ,  H04N5/247 ,  H04N5/3572 ,  H04N7/181 ,  H04N9/045

Abstract: A method for displaying a surround view on a single display screen is disclosed. A plurality of image frames for a particular time may be received from a corresponding plurality of cameras. A viewpoint warp map corresponding to a predetermined first virtual viewpoint may be selected, wherein the viewpoint warp map defines a source pixel location in the plurality of image frames for each output pixel location in the display screen. The warp map was predetermined offline and stored for later use. An output image is synthesized for the display screen by selecting pixel data for each pixel of the output image from the plurality of image frames in accordance with the viewpoint warp map. The synthesized image is then displayed on a display screen.