Invention Grant
- Patent Title: Stationary-vehicle structure from motion
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Application No.: US16121012Application Date: 2018-09-04
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Publication No.: US10354149B2Publication Date: 2019-07-16
- Inventor: Prashanth Ramanathpu Viswanath , Soyeb Nagori , Manu Mathew
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Brian D. Graham; Charles A. Brill; Frank D. Cimino
- Priority: IN7027/CHE/2015 20151229
- Main IPC: G06K9/00
- IPC: G06K9/00 ; G06T7/269 ; H04N7/18 ; G06K9/46 ; G06T7/579

Abstract:
A vehicular structure from motion (SfM) system can store a number of image frames acquired from a vehicle-mounted camera in a frame stack according to a frame stack update logic. The SfM system can detect feature points, generate flow tracks, and compute depth values based on the image frames, the depth values to aid control of the vehicle. The frame stack update logic can select a frame to discard from the stack when a new frame is added to the stack, and can be changed from a first in, first out (FIFO) logic to last in, first out (LIFO) logic upon a determination that the vehicle is stationary. An optical flow tracks logic can also be modified based on the determination. The determination can be made based on a dual threshold comparison to insure robust SfM system performance.
Public/Granted literature
- US20190019043A1 STATIONARY-VEHICLE STRUCTURE FROM MOTION Public/Granted day:2019-01-17
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