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Travel Map Generator for WordPress using Image Information: A Streamlined Solution for Travel Bloggers

By J.D. Juni 10, 2024

Request a Decision from the Universe: Powered by a Gamma-Event True Random Number Generator

By J.D. Mai 12, 2024

WireGuard Client for Synology DSM

By J.D. Dezember 12, 2023

Install Azure-Kinect-SDK 1.4 on Ubuntu 22.04

By J.D. November 15, 2023

UMAP – „Uniform Manifold Approximation and Projection“ und die Riemannschen Mannigfaltigkeiten

By J.D. Oktober 29, 2023

Deep-Q-Networks II: Konzept zum Aktienhandel mit TensorFlow DQN

By J.D. September 6, 2023

Deep-Q-Networks: Eine Revolution im Reinforcement Learning

By J.D. August 30, 2023

TRNG II Statistic Testing – Die Zufälligkeit eines Zufallsgenerators: Einsatz der NIST-Test-Suite : RNG – Random Number Generator mit dem GDK-101 Gamma Strahlen Detektor und einem Raspberry Pi Pico

By J.D. Juli 25, 2023

TRNG BASICS: True Random Number Generator mit dem GDK-101 Gamma Strahlen Detektor und dem Raspberry Pi Pico

By J.D. Juni 28, 2023

Commodore 64: Dive into the Retro-World

By J.D. Juni 26, 2023

PDF Dateien mittels SciPlore Xtract – pdftitle Implementierung nach dem Titel umbenennen

By J.D. Mai 15, 2023

Simple MagicMirror ChatGPT Integration

By J.D. März 17, 2023
Das Modell

MMM-TTS-NANOTTS: Lass den MagicMirror sprechen

By J.D. Januar 4, 2023

Sonoff ZigBee Bridge Pro – Tasmota flashing und Homeassistant Integration

By J.D. Dezember 27, 2022

DUAL CV 1700 Restauration

By J.D. Mai 24, 2022

Homeassistant – 433Mhz Temperatursensor OpenMQTT Gateway

By J.D. April 30, 2022

DUAL: Volumio Pi – ESS 9038 Pro

By J.D. April 13, 2022

DUAL C 826 – Kassettendeck

By J.D. April 10, 2022

NOUS A5 – Tasmota OTA Flash

By J.D. April 3, 2022
Das Modell

Deep Thought Pi

By J.D. April 2, 2022

Update DeLock WLAN-Steckdose 11826/11827 – Tasmota 9

By J.D. Januar 15, 2022

Homekit / ESP32 / BME680 Sensor

By J.D. Januar 9, 2022

KT

By J.D. September 28, 2021

Headless Installation

By J.D. August 10, 2021

1978: x86 Prozessor – „Hello new World!“

By J.D. Juni 2, 2020

piRadio die Erste

By J.D. Oktober 25, 2017

Lebenswege

By J.D. Juli 3, 2015

  • new .publications

    Authors: Nina Ellrich, Kasimir Niermeyer, Daniela Peto, Julian Decker, Urban M Fietzek, Sabrina Katzdobler, Günter U Höglinger, Klaus Jahn, Andreas Zwergal, Max Wuehr

    Precision Balance Assessment in Parkinson’s Disease: Utilizing Vision-Based 3D Pose Tracking for Pull Test Analysis

    - 2024 - Sensors, vol. 24, p. 3673

    Abstract : Postural instability is a common complication in advanced Parkinson’s disease (PD) associated with recurrent falls and fall-related injuries. The test of retropulsion, consisting of a rapid balance perturbation by a pull in the backward direction, is regarded as the gold standard for evaluating postural instability in PD and is a key component of the neurological examination and clinical rating in PD (e.g., MDS-UPDRS). However, significant variability in test execution and interpretation contributes to a low intra- and inter-rater test reliability. Here, we explore the potential for objective, vision-based assessment of the pull test (vPull) using 3D pose tracking applied to single-sensor RGB-Depth recordings of clinical assessments. The initial results in a cohort of healthy individuals (n = 15) demonstrate overall excellent agreement of vPull-derived metrics with the gold standard marker-based motion capture. Subsequently, in a cohort of PD patients and controls (n = 15 each), we assessed the inter-rater reliability of vPull and analyzed PD-related impairments in postural response (including pull-to-step latency, number of steps, retropulsion angle). These quantitative metrics effectively distinguish healthy performance from and within varying degrees of postural impairment in PD. vPull shows promise for straightforward clinical implementation with the potential to enhance the sensitivity and specificity of postural instability assessment and fall risk prediction in PD. ... read on

    Authors: Julian Decker, Lukas Boborzi, Roman Schniepp, Klaus Jahn, Max Wuehr

    Mobile spatiotemporal gait segmentation using an ear-worn motion sensor and deep learning

    - 2024 - Sensors (Basel, Switzerland), vol. 24, p. 6442

    Abstract : Mobile health technologies enable continuous, quantitative assessment of mobility and gait in real-world environments, facilitating early diagnoses of gait disorders, disease progression monitoring, and prediction of adverse events like falls. Traditionally, mobile gait assessment predominantly relied on body-fixed sensors positioned at the feet or lower trunk. Here, we investigate the potential of an algorithm utilizing an ear-worn motion sensor for spatiotemporal segmentation of gait patterns. We collected 3D acceleration profiles from the ear-worn sensor during varied walking speeds in 53 healthy adults. Temporal convolutional networks were trained to detect stepping sequences and predict spatial relations between steps. The resulting algorithm, mEar, accurately detects initial and final ground contacts (F1 score of 99% and 91%, respectively). It enables the determination of temporal and spatial gait cycle … ... read on

    Authors: Lukas Boborzi, Julian Decker, Razieh Rezaei, Roman Schniepp, Max Wuehr

    Human activity recognition in a free-living environment using an ear-worn motion sensor

    - 2024 - Sensors, vol. 24, p. 2665

    Abstract : Human activity recognition (HAR) technology enables continuous behavior monitoring, which is particularly valuable in healthcare. This study investigates the viability of using an ear-worn motion sensor for classifying daily activities, including lying, sitting/standing, walking, ascending stairs, descending stairs, and running. Fifty healthy participants (between 20 and 47 years old) engaged in these activities while under monitoring. Various machine learning algorithms, ranging from interpretable shallow models to state-of-the-art deep learning approaches designed for HAR (i.e., DeepConvLSTM and ConvTransformer), were employed for classification. The results demonstrate the ear sensor’s efficacy, with deep learning models achieving a 98% accuracy rate of classification. The obtained classification models are agnostic regarding which ear the sensor is worn and robust against moderate variations in sensor orientation (e.g., due to differences in auricle anatomy), meaning no initial calibration of the sensor orientation is required. The study underscores the ear’s efficacy as a suitable site for monitoring human daily activity and suggests its potential for combining HAR with in-ear vital sign monitoring. This approach offers a practical method for comprehensive health monitoring by integrating sensors in a single anatomical location. This integration facilitates individualized health assessments, with potential applications in tele-monitoring, personalized health insights, and optimizing athletic training regimes. ... read on

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