Patent · US Active

Hybrid depth estimation system

US11132804B2 · kind B2 · utility

2Cited by

0References

13Claims

0Family size

Assignee

Himax Technologies Limited · TW

Inventors

Wei-Kai Chan · Tainan, TW
Yi-Nung Liu · Tainan, TW
Chin-Jung Tsai · Tainan, TW

Key dates

Filing date	Jan 7, 2020
Grant date	Sep 28, 2021
Priority date	—
Expiry date	Apr 25, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/10028
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A hybrid depth estimation system includes a switchable projector that controllably projects either dot light or surface light onto an object; a sensor that receives reflected dot light or reflected surface light from the object to capture a first image or a second image respectively; a dot time-of-flight (ToF) depth generator that generates a dot depth map and an associated dot confidence map according to the first image; a surface ToF depth generator that generates a surface depth map according to the second image; and a denoise processor that processes the surface depth map according to a plurality of points on the dot depth map with high confidence, thereby generating a denoised depth map.

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