Health Biomarker Estimation Non-invasively and Ubiquitously
نام ساير پديدآوران
Ahamed, Sheikh Iqbal
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
Marquette University
تاریخ نشرو بخش و غیره
2019
مشخصات ظاهری
نام خاص و کميت اثر
129
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
Ph.D.
کسي که مدرک را اعطا کرده
Marquette University
امتياز متن
2019
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
This dissertation focuses on the non-invasive assessment of blood-hemoglobin levels. The primary goal of this research is to investigate a reliable, affordable, and user-friendly point-of-care solution for hemoglobin-level determination using fingertip videos captured by a smartphone. I evaluated videos obtained from five patient groups, three from the United States and two from Bangladesh, under two sets of lighting conditions. In the last group, based on human tissue optical transmission modeling data, I used near-infrared light-emitting diode sources of three wavelengths. I developed novel image processing techniques for fingertip video analysis to estimate hemoglobin levels. I studied video images creating image histogram and subdividing each image into multiple blocks. I determined the region of interest in a video and created photoplethysmogram signals. I created features from image histograms and PPG signals. I used the Partial Least Squares Regression and Support Vector Machine Regression tools to analyze input features and to build hemoglobin prediction models. Using data from the last and largest group of patients studied, I was able to develop a model with a strong linear correlation between estimated and clinically-measured hemoglobin levels. With further data and methodological refinements, the approach I have developed may be able to define a clinically accurate public health applicable tool for hemoglobin level and other blood constituent assessment.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Biomedical engineering
موضوع مستند نشده
Computer science
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )