Patent · US Active

Method and apparatus for time of flight sensor 2-dimensional and 3-dimensional map generation

US9151842B2 · kind B2 · utility

0Cited by

0References

6Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Dong-Ik Ko · McKinney, US
Nara Won · Irvine, US
Debasish Nag · Richardson, US

Key dates

Filing date	Nov 11, 2011
Grant date	Oct 6, 2015
Priority date	—
Expiry date	Jan 25, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01S17/894
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and apparatus for Time Of Flight sensor 2-dimensional and 3-dimensional map generation. The method includes retrieving Time Of Flight sensor fixed point data to obtain four phases of Time Of Flight fixed point raw data, computing Gray scale image array and phase differential signal arrays utilizing four phases of TOF fixed point raw data, computing Gray image array and Amplitude image array for fixed point, converting the phase differential signal array from fixed point to floating point, performing the floating point division for computing Arctan, TOF depthmap, and 3-dimensional point cloud map for Q format fixed point, and generating depthmap, 3-dimensional cloud coefficients and 3-dimensional point cloud for Q format fixed point.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.