公开(公告)号：US20210092354A1

公开(公告)日：2021-03-25

申请号：US17118310

申请日：2020-12-10

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sujith Shivalingappa ,  Vikram Appia ,  Anand Yalgurdrao Kulkarni ,  Do-Kyoung Kwon

IPC: H04N17/00 ,  H04N7/18 ,  G06K9/00 ,  B60R1/00 ,  G06K9/32

Abstract: A method for automatic generation of calibration parameters for a surround view (SV) camera system is provided that includes capturing a video stream from each camera comprised in the SV camera system, wherein each video stream captures two calibration charts in a field of view of the camera generating the video stream; displaying the video streams in a calibration screen on a display device coupled to the SV camera system, wherein a bounding box is overlaid on each calibration chart, detecting feature points of the calibration charts, displaying the video streams in the calibration screen with the bounding box overlaid on each calibration chart and detected features points overlaid on respective calibration charts, computing calibration parameters based on the feature points and platform dependent parameters comprising data regarding size and placement of the calibration charts, and storing the calibration parameters in the SV camera system.

公开(公告)号：US10438081B2

公开(公告)日：2019-10-08

申请号：US15294369

申请日：2016-10-14

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Do-Kyoung Kwon ,  Aziz Umit Batur ,  Vikram Appia

IPC: G06K9/32 ,  G06K9/46 ,  G06T7/80 ,  H04N5/232

Abstract: In some embodiments, a computer-readable medium stores executable code, which, when executed by a processor, causes the processor to: capture an image of a finder pattern using a camera; locate a predetermined point within the finder pattern; use the predetermined point to identify multiple boundary points on a perimeter associated with the finder pattern; identify fitted boundary lines based on the multiple boundary points; and locate feature points using the fitted boundary lines.

公开(公告)号：US09533618B2

公开(公告)日：2017-01-03

申请号：US14642510

申请日：2015-03-09

Applicant: Texas Instruments Incorporated

Inventor： Buyue Zhang ,  Ibrahim Pekkucuksen ,  Vikram Appia ,  Aziz Umit Batur

IPC: B60R1/00 ,  G06T3/40

CPC classification number: B60R1/00 ,  B60R2300/303 ,  B60R2300/607 ,  G06T3/4038

Abstract: A method, apparatus and a system multi-camera image processing method. The method includes performing geometric alignment to produce a geometric output, performing photometric alignment to produce a photometric output and blending output, using data from the geometric alignment and the photometric alignment for performing synthesis function for at least one of blending and stitching images from the multi-cameras, and displaying an image from the synthesis function.

Abstract translation: 一种方法，装置和系统的多摄像机图像处理方法。 该方法包括执行几何对准以产生几何输出，执行光度对准以产生光度输出和混合输出，使用来自几何对准和光度对准的数据，用于执行来自多重图像的混合和拼接图像中的至少一个的合成功能 - 相机，并从合成功能显示图像。