Image registration is a useful technique to measure the change between two or more images. Lung CT image registration is widely used an non-invasive method to measure the lung function changes. Non-invasive lung function measurement accuracy highly depends on lung CT image registration accuracy. Improving the registration accuracy is an important issue. In this thesis, we propose incorporating ...

Measurements of cup alignment after total hip replacement (THR) surgery are typically performed on postoperative pelvic radiographs. Radiographic measurement of cup orientation depends on the position and orientation of the pelvis on the X-ray table, and its variability could introduce significant measurement errors. We have developed a tool to accurately measure 3D implant orientation from pos...

Image resolution in 4D-CT is a crucial bottleneck that needs to be overcome for improved dose planning in radiotherapy for lung cancer. In this paper, we propose a novel patch-based algorithm to enhance the image quality of 4D-CT data. Our premise is that anatomical information missing in one phase can be recovered from complementary information embedded in other phases. We employ a patch-based...

This article presents a continuous-time (CT) ΔΣ analog-to-digital converter for wireless communication systems with high tolerance against blockers. The zero-cancellation technique is introduced to eliminate the peaking in signal transfer function (STF) achieve better out-of-band-blocker immunity. An on-chip unary-approximating calibration implemented calibrate mismatch of outer current-steerin...

A natural language processing (NLP) application requires sophisticated lexical resources to support its goals. Different solutions, such as dictionary lookup and MetaMap, have been proposed in the healthcare informatics literature identify disease terms with more than one word (multi-gram named entities). Although a lot of work has done identification protein- gene-named entities biomedical fie...

Typographical data entry errors and incomplete documents, produce imperfect records in real world databases. These errors generate distinct records which belong to the same entity. The aim of Approximate Record Matching is to find multiple records which belong to an entity. In this paper, an algorithm for Approximate Record Matching is proposed that can be adapted automatically with input error...

typographical data entry errors and incomplete documents, produce imperfect records in real world databases. these errors generate distinct records which belong to the same entity. the aim of approximate record matching is to find multiple records which belong to an entity. in this paper, an algorithm for approximate record matching is proposed that can be adapted automatically with input error...

Computerized tomography (CT) has been used for decades by medical professionals to detect and diagnose injuries ailments. CT scanners are based on interesting physics, but due their bulk, cost, safety, hands experience with a scanner unrealistic undergraduate students. Therefore, operationally similar, yet small, safe, inexpensive desirable teaching tools. This project details the development o...