IEEE Trans Pattern Anal Mach Intell
March 2021
Image matching and retrieval is the underlying problem in various directions of computer vision research, such as image search, biometrics, and person re-identification. The problem involves searching for the closest match to a query image in a database of images. This work presents a method for generating a consensus amongst multiple algorithms for image matching and retrieval.
View Article and Find Full Text PDFTo identify vascular disruptor compounds (VDCs), this study utilized an in vivo zebrafish embryo vascular model in conjunction with a mouse endothelial cell model to screen a subset of the U.S. Environmental Protection Agency (EPA) ToxCast Phase I chemical inventory.
View Article and Find Full Text PDFIEEE J Transl Eng Health Med
September 2016
Stereophotogrammetry is finding increased use in clinical breast surgery, both for breast reconstruction after oncological procedures and cosmetic augmentation and reduction. The ability to visualize and quantify morphological features of the breast facilitates pre-operative planning and post-operative outcome assessment. The contour outlining the lower half of the breast is important for the quantitative assessment of breast aesthetics.
View Article and Find Full Text PDFJ Wound Ostomy Continence Nurs
December 2016
Purpose: The roles of debridement, infection control, and moisture balance in wound healing are familiar to wound care clinicians, but these measures may not be sufficient for wound closure in all patients. In these cases, adjuvant therapies such as collagen dressings may be needed. Collagen dressings are thought to encourage wound healing by laying down a provisional biomaterial matrix that captures wound exudates because of its absorbent nature, and thus creates an environment necessary for healing.
View Article and Find Full Text PDFExposure to arsenic in its inorganic form, arsenite, causes adverse effects to many different organs and tissues. Here, we have investigated arsenite-induced adverse effects on vascular tissues in the model organism zebrafish, Danio rerio. Zebrafish embryos were exposed to arsenite at different exposure windows and the susceptibility to vascular tissue damage was recorded at 72hours post fertilization (hpf).
View Article and Find Full Text PDFAsymmetric 3D to 2D face recognition has gained attention from the research community since the real-world application of 3D to 3D recognition is limited by the unavailability of inexpensive 3D data acquisition equipment. A 3D to 2D face recognition system explicitly relies on 3D facial data to account for uncontrolled image conditions related to head pose or illumination. We build upon such a system, which matches relit gallery textures with pose-normalized probe images, using the gallery facial meshes.
View Article and Find Full Text PDFCancer of the esophagus and gastroesophageal junction (GEJ) is notorious for its advanced stage at the time of diagnosis with transmural invasion and early lymphatic spread in the majority of the patients. R0 resection is the aim of surgery with curative intent. Regarding the role of lymphadenectomy, as in any other solid organ cancer, there are opposing views.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
June 2015
An important factor facilitating the application of zebrafish in biomedical research is high throughput screening of vertebrate animal models. For example, being able to model the growth of blood vessel in the vasculature system is interesting for understanding both the circulatory system in humans, and for facilitating large scale screening of the influence of various chemicals on vascular development. Compared to other models, the zebrafish embryo is an attractive alternative for environmental risk assessment of chemicals since it offers the possibility to perform high-throughput analyses in vivo.
View Article and Find Full Text PDFHabituation is a common form of non-associative learning in which the organism gradually decreases its response to repeated stimuli. The decrease in exploratory activity of many animal species during exposure to a novel open field arena is a widely studied habituation paradigm. However, a theoretical framework to quantify how the novelty of the arena is learned during habituation is currently missing.
View Article and Find Full Text PDFIn open field arenas, Drosophila adults exhibit a preference for arena boundaries over internal walls and open regions. Herein, we investigate the nature of this preference using phenomenological modeling of locomotion to determine whether local arena features and constraints on movement alone are sufficient to drive positional preferences within open field arenas of different shapes and with different internal features. Our model has two components: directional persistence and local wall force.
View Article and Find Full Text PDFA total contact cast (TCC) is considered the gold standard for healing diabetic foot ulcers (DFU). Numerous studies have demonstrated the excellent healing success of a TCC; however, its adoption in routine clinical use does not match its success rate. This lack of implementation is due to several factors: Medicare's payment structure, lack of clinical training, and a variety of patient factors.
View Article and Find Full Text PDFIEEE Trans Pattern Anal Mach Intell
March 2013
We present a Markov Random Field model for the analysis of lattices (e.g., images or 3D meshes) in terms of the discriminative information of their vertices.
View Article and Find Full Text PDFSegmentation of cells/nuclei is a challenging problem in 2-D histological and cytological images. Although a large number of algorithms have been proposed, newer efforts continue to be devoted to investigate robust models that could have high level of adaptability with regard to considerable amount of image variability. In this paper, we propose a multiclassification conditional random fields (CRFs) model using a combination of low-level cues (bottom-up) and high-level contextual information (top-down) for separating nuclei from the background.
View Article and Find Full Text PDFThis paper describes an algorithm for automated spatial alignment of three-dimensional (3D) surface images in order to achieve a pre-defined orientation. Surface images of the torso are acquired from breast cancer patients undergoing reconstructive surgery to facilitate objective evaluation of breast morphology pre-operatively (for treatment planning) and/or post-operatively (for outcome assessment). Based on the viewing angle of the multiple cameras used for stereophotography, the orientation of the acquired torso in the images may vary from the normal upright position.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
June 2012
In this study, we describe the utility of the zebrafish model of in-vivo blood vessel formation as a tool for chemical risk assessment. Time-lapse confocal imaging of embryonic vasculature in the zebrafish is used in conjunction with digital image analysis to monitor and quantify the effect of toxins on vascular development. Non-rigid registration is used to capture changes in vascular morphology over time.
View Article and Find Full Text PDFMajor problems in closed reduction of isolated, minimally displaced, and depressed zygomatic arch fractures are blind nature of the technique, reliability on digital palpation, reduction click, and step deformity between fragments. The purpose of this study was to objectively confirm the adequacy of closed reduction intraoperatively and the usefulness of the "C"-arm image intensifier. A total of 12 patients with 1- to 8-day-old unilateral isolated and depressed zygomatic arch fracture underwent closed reduction under "C"-arm image intensifier.
View Article and Find Full Text PDFIt has been the desire and a great challenge to clinicians treating maxillofacial deformities to bring about symmetry in asymmetric faces. As one understands, it is very difficult to reproduce nature, that is, the normal side out of abnormal side, and it is easier to manage bilateral symmetrical deformities. Temporomandibular joint (TMJ) ankylosis, when it occurs in early childhood, will have devastating effects on the future growth and development of the jaws and teeth with obvious facial deformity including the chin, which worsens with advancing age and the time elapsed between the onset of ankylosis and the treatment instituted.
View Article and Find Full Text PDFCastleman's disease is a rare lymphoproliferative disorder, which usually occurs in the chest. The castleman's disease is often asymptomatic, but it can cause nonspecific thoracic symptoms such as cough and dyspnea. Surgical removal is curative and malignant transformation has not been described.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
April 2010
This paper discusses the needs for automated tools to aid in the diagnosis of thyroid nodules based on analysis of fine needle aspiration cytology smears. While conventional practices rely on the analysis of grey scale or RGB color images, we present a multispectral microscopy system that uses thirty-one spectral bands for analysis. Discussed are methods and results for system calibration and cell delineation.
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