PPT-Statistical Pattern Analysis of Blood Vessel Features on Retina Images and Its Application

Presented by Xing Wang Department of Computer Science Texas AampM University Authors Huajun Ying Xing Wang Jyh Charn Steve Liu Date Aug 27 2014 1 Outline. General Info gained from bloodstain pattern analysis:. 1. the direction the blood originated from. 2.the angle that the blood drop struck a surface. 3. location/position of a bleeding individual at a crime scene. Stephen Atwood, Amy Hitchcock,. Niccole Hunter and Elizabeth Watt . Retinopathy of Prematurity (ROP). Retina – abnormal blood vessels can form and can leak causing scaring or leak causing detachment of the retina.. . By : Cyndreka Lindsey. CHEM-4201. 11/20/2014. Outline. Background. Spatter Analysis. Blood Patterns. Common Tests. Writing Assignment. Questions. Background. Before blood analysis detectives had to relay on their instincts and criminal confessions to solve a crime. Blood spatter . 1939—spatter . patterns first . analyzed. Blood may . spatter . when a wound is inflicted. Blood . spatter . pattern—a grouping of blood stains. Patterns help to reconstruct the events surrounding a shooting, stabbing, or beating. Griffin. Bloodstain patterns. The patterns left by falling, projected, or smeared blood can help the forensic investigator interpret and reconstruct what has happened at a crime scene.. Observation of the position and shape of stain patterns can give information such as:. Chapter 8. Blood Spatter . #1…it’s not “. splatter. ”! . . Properties of blood affect pattern:. Fairly . high surface . tension (cohesion). Very . viscous. Sticky-adheres . to external . surface (adhesion). Ms. Schultz. The Sam Sheppard Case. On July 4, 1954 Sam Sheppard called police to report that his wife Marilynn was dead in the bedroom. He said the night before, his wife had gone upstairs to bed while he was asleep on the couch. When he went upstairs, he saw his wife covered in blood. He heard a noise and ran downstairs chasing after a 6’3’’ bushy haired man. The two struggled and Dr. Sheppard was choked unconscious. When police arrived, Marilynn was found with 35 wounds to the head and blood drenched the walls, door, and bed. Her face was almost unrecognizable. Sheppard served 10 years in prison before the US Supreme court rules that the trial had been tainted. The evidence was reexamined. Blood spatters and blood drops provided some of the most compelling evidence. Dr. Paul Kirk, an expert in blood analysis, determined the killer could not have been Sam because the attack was perpetrated by a left handed person. Dr. Sheppard was right handed.. Blood Vessels P A R T A Blood vessels and circulation Blood is carried in a closed system of vessels that begins and ends at the heart 5 types of blood vessels Arteries – carries blood away from the heart Checkpoint Presentation. Shayer. . Chowdhury. . (schowdh8@jhu.edu. ). Project #3. Mentors: Dr. . Gyusung. Lee, Dr. . Mija. Lee. Current state. : Lack of a cheap, effective, and reusable blood vessel dissection phantom for robotic surgery training. Retina SpecialistsThe Foundation continued next pageCommitted to improving the quality of life of all people with retinal disease. RETINA HEALTH SERIES WHAT IS THE RETINA? Symptoms and Causes: edema r The Senses. General senses of touch. Temperature. Pressure. Pain. Special senses. Smell. Taste. Sight. Hearing. Equilibrium. The Eye and Vision. 70% of all sensory receptors are in the eyes. Each eye has over a million nerve fibers. Arteries. large diameter . contain large amount of elastic tissue >>>>>>> wind . kessel. effect. Arteries. contain less elastic tissue. contain much more smooth muscles. they are the major site of resistance. Katharine Lee, Dr. Anton . Dahbura. , Dr. Craig Jones. Johns Hopkins University | Whiting School of Engineering | Baltimore, MD. Design Day 2021. Tortuosity is the measure of how winding or twisted a path is. . José Ignacio Orlando. 1,2. , Marcos Fracchia. 3. , Valeria . del . Río. 3. and Mariana del Fresno. 2,3,4. 1. . Consejo. Nacional de . Investigaciones. . Científicas. y . Técnicas. , CONICET, Argentina.