Evaluating the Accuracy of the Azure Kinect and Kinect v2

The Azure Kinect represents the latest generation of Microsoft Kinect depth cameras. Of interest in this article is the depth and spatial accuracy of the Azure Kinect and how it compares to its predecessor, the Kinect v2. In one experiment, the two sensors are used to capture a planar whiteboard at...

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Main Authors: Gregorij Kurillo, Evan Hemingway, Mu-Lin Cheng, Louis Cheng
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/7/2469
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author Gregorij Kurillo
Evan Hemingway
Mu-Lin Cheng
Louis Cheng
author_facet Gregorij Kurillo
Evan Hemingway
Mu-Lin Cheng
Louis Cheng
author_sort Gregorij Kurillo
collection DOAJ
description The Azure Kinect represents the latest generation of Microsoft Kinect depth cameras. Of interest in this article is the depth and spatial accuracy of the Azure Kinect and how it compares to its predecessor, the Kinect v2. In one experiment, the two sensors are used to capture a planar whiteboard at 15 locations in a grid pattern with laser scanner data serving as ground truth. A set of histograms reveals the temporal-based random depth error inherent in each Kinect. Additionally, a two-dimensional cone of accuracy illustrates the systematic spatial error. At distances greater than 2.5 m, we find the Azure Kinect to have improved accuracy in both spatial and temporal domains as compared to the Kinect v2, while for distances less than 2.5 m, the spatial and temporal accuracies were found to be comparable. In another experiment, we compare the distribution of random depth error between each Kinect sensor by capturing a flat wall across the field of view in horizontal and vertical directions. We find the Azure Kinect to have improved temporal accuracy over the Kinect v2 in the range of 2.5 to 3.5 m for measurements close to the optical axis. The results indicate that the Azure Kinect is a suitable substitute for Kinect v2 in 3D scanning applications.
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spelling doaj.art-72f2f7b4ab36497dbaceca500378b71b2023-11-30T23:59:19ZengMDPI AGSensors1424-82202022-03-01227246910.3390/s22072469Evaluating the Accuracy of the Azure Kinect and Kinect v2Gregorij Kurillo0Evan Hemingway1Mu-Lin Cheng2Louis Cheng3Bioniks, Alameda, CA 94501, USAApplied BioMechanics, Alameda, CA 94501, USABioniks, Alameda, CA 94501, USABioniks, Alameda, CA 94501, USAThe Azure Kinect represents the latest generation of Microsoft Kinect depth cameras. Of interest in this article is the depth and spatial accuracy of the Azure Kinect and how it compares to its predecessor, the Kinect v2. In one experiment, the two sensors are used to capture a planar whiteboard at 15 locations in a grid pattern with laser scanner data serving as ground truth. A set of histograms reveals the temporal-based random depth error inherent in each Kinect. Additionally, a two-dimensional cone of accuracy illustrates the systematic spatial error. At distances greater than 2.5 m, we find the Azure Kinect to have improved accuracy in both spatial and temporal domains as compared to the Kinect v2, while for distances less than 2.5 m, the spatial and temporal accuracies were found to be comparable. In another experiment, we compare the distribution of random depth error between each Kinect sensor by capturing a flat wall across the field of view in horizontal and vertical directions. We find the Azure Kinect to have improved temporal accuracy over the Kinect v2 in the range of 2.5 to 3.5 m for measurements close to the optical axis. The results indicate that the Azure Kinect is a suitable substitute for Kinect v2 in 3D scanning applications.https://www.mdpi.com/1424-8220/22/7/24693D sensingAzure Kinectdepth accuracyKinect v2
spellingShingle Gregorij Kurillo
Evan Hemingway
Mu-Lin Cheng
Louis Cheng
Evaluating the Accuracy of the Azure Kinect and Kinect v2
Sensors
3D sensing
Azure Kinect
depth accuracy
Kinect v2
title Evaluating the Accuracy of the Azure Kinect and Kinect v2
title_full Evaluating the Accuracy of the Azure Kinect and Kinect v2
title_fullStr Evaluating the Accuracy of the Azure Kinect and Kinect v2
title_full_unstemmed Evaluating the Accuracy of the Azure Kinect and Kinect v2
title_short Evaluating the Accuracy of the Azure Kinect and Kinect v2
title_sort evaluating the accuracy of the azure kinect and kinect v2
topic 3D sensing
Azure Kinect
depth accuracy
Kinect v2
url https://www.mdpi.com/1424-8220/22/7/2469
work_keys_str_mv AT gregorijkurillo evaluatingtheaccuracyoftheazurekinectandkinectv2
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