US 12,015,845 B2 · Object depth estimation and camera focusing techniques for multiple-camera systems

Abstract

Various embodiments disclosed herein include techniques for operating a multiple camera system. In some embodiments, a primary camera may be selected from a plurality of cameras using object distance estimates, distance error information, and minimum object distances for some or all of the plurality of cameras. In other embodiments, a camera may be configured to use defocus information to obtain an object distance estimate to a target object closer than a minimum object distance of the camera. This object distance estimate may be used to assist in focusing another camera of the multi-camera system.

Claims20

Dependent claims

A device comprising:

a multi-camera system including:
a first camera configured with autofocus capabilities and having a first minimum object distance;
and
a second camera configured with autofocus capabilities and having a second minimum object distance;
and
a focus control logic configured to:
cause the second camera to measure defocus information for a target object at a predetermined focus position, the target object being closer than the second minimum object distance;
determine an extrapolated focus position using the defocus information;
and
cause the first camera to focus on the target object based at least in part on the extrapolated focus position.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/479,584Filed 20 Sep 2021 · us provisional application

Priority

13 Sep 2021

Published

US 2023/0081349 A116 Mar 2023

Granted

18 Jun 2024

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

H04N 23/675
Focus control based on electronic image sensor signals: comprising setting of focusing regions
G02B 5/287
Comprising deposited thin solid films: comprising at least one layer of organic material
G02B 7/285
Systems for automatic generation of focusing signals: including two or more different focus detection devices, e.g. both an active and a passive…
G02B 7/40
Systems for automatic generation of focusing signals: using time delay of the reflected waves, e.g. of ultrasonic waves

Object depth estimation and camera focusing techniques for multiple-camera systems

Life of this patent

Object depth estimation and camera focusing techniques for multiple-camera systems

Life of this patent

Abstract

Claims20