Absolute distance measurement for time-of-flight sensors

C Meinherz, M Hardegger, M Stein, D Dorizzi - US Patent 9,823,352, 2017 - Google Patents
A time-of-flight (TOF) sensor device is provided with features for correcting distance
measurement offset errors caused by such factors as temperature, dynamic reflectivity …

Symbology reader with multi-core processor

L Nunnink, R Reuter, F Winzen, M Joussen… - US Patent …, 2018 - Google Patents
The present disclosure provides a vision system camera, and associated methods of
operation, having a multi-core processor, high-speed, high-resolution imager, FOVE, auto …

Multi-frequency unwrapping

T Perry, M Schmidt, J Godbaz, M Fenton - US Patent 10,598,783, 2020 - Google Patents
The time-of-flight system disclosed herein includes a fre quency unwrapping module
configured to generate an input phase vector with M phases corresponding to M sampled …

Method and system for mutual interaction using space based augmentation

JH Kwon, JY Lee, BJ You - US Patent 9,007,422, 2015 - Google Patents
(57) ABSTRACT A method makes a first and a second devices Support for interactions with
respect to a 3D object. The method includes steps of:(a) allowing the first device to acquire …

Depth camera light leakage avoidance

M Bleyer, RK Price, J Zhao, D Demandolx - US Patent 10,284,836, 2019 - Google Patents
Disclosed are a device and a method of depth sensing that handle light leakage issues. In
some embodiments, the depth sensing device includes a light emitter that illuminates an …

Disparity computation method through stereo matching based on census transform with adaptive support weight and system thereof

BI Moon, KR Bae, HS Son, SH Ok - US Patent 9,786,063, 2017 - Google Patents
Provided is a method of computing precise disparity using a stereo matching method based
on developed census transform with an adaptive support weight method in area based …

Wide field-of-view depth imaging

JM Hudman - US Patent 9,805,454, 2017 - Google Patents
A machine-vision system includes a modulated light source, an imaging pixel array, and a
lens system. The modulated light source is configured to project light onto a subject. The …

Time of flight camera

Z Xu, T Perry - US Patent 9,702,976, 2017 - Google Patents
BACKGROUND A “continuous wave'time of flight (TOF) camera (CW TOF), transmits an
amplitude modulated “continuous wave'of electromagnetic radiation, optionally IR light …

Absolute distance measurement for time-of-flight sensors

C Meinherz, M Hardegger, M Stein… - US Patent 10,677,922, 2020 - Google Patents
A time-of-flight (TOF) sensor device is provided with features for correcting distance
measurement offset errors caused by such factors as temperature, dynamic reflectivity …

Depth information acquisition method and device

C Ge, YAO Huimin, XIE Yanmei, Y Zhou - US Patent 10,764,559, 2020 - Google Patents
There are provided a depth information acquisition method and device. The method
includes: determining a relative geometric position relationship between a ToF camera and …