Journal for Research | Volume 03| Issue 07 | September 2017 ISSN: 2395-7549 All rights reserved by www.journal4research.org 9 An Improved Blood Splatters Analysis Technique Utkarsha Chirmade Ms. Namrata Sharma Sushila Devi Bansal College of Engineering, Indore, India Sushila Devi Bansal College of Engineering, Indore, India Prof. B.S Patil Govt .College of Engineering, Karad, India Abstract In different complicated crime investigation and solving the cases the forensic science is a key contributor. That involves the biology, chemistry, mathematics and physics for investigating the facts about the crime. Forensic science includes on more technique for crime scene analysis is known as bloodstain analysis. The bloodstain analysis enable the investigators to understand the crime scene, discover the kind of weapon used, speed of weapon, flight time of blood drops and the angle of weapon or impact. In this work the aim is to investigate about the blood strain analysis technique and to design a new technique for recovering the flight time, angle of impact and velocity of weapon. In this context first the crime scene image data is accepted as initial input. Additionally for finding the accurate analysis some additional inputs are also included such as high of impact, distance of blood drops and the line passing through the ellipse formed in the input image. Finally the velocity and flight time of blood drops are calculated using the law of motion and the trajectory analysis. The implementation of the proposed technique is provided using JAVA technology. Additionally the performance is computed in terms of time and space complexity of the implemented system. The performance of the proposed system demonstrates the proposed technique is effective and low resource consuming technique. Keywords: Forensic, Bloodstain Analysis, Trajectory Analysis, Flight Time, Velocity and Angle _______________________________________________________________________________________________________ I. INTRODUCTION The domain of computation and their applications are expanding day by day. Among various application domains of computations now in these days in forensic science it also becomes popular. Basically the forensic science is a domain or subject of investigation of criminal activities. That is responsible for preservation, investigation and collection of criminal facts that helps to explore the crime. In this proposed work the domain of forensic science is key area of study and fact collection. In addition of that the effort is made in order to provide enhance and efficient approach for finding the blood splatter trajectory. The analysis of blood splatter trajectory is also termed as Bloodstain pattern analysis. That is aimed to helping investigators draw conclusions about the nature, timing and other details of the crime. Bloodstain pattern analysis draws on the scientific disciplines of biology, chemistry, mathematics and physics. In this presented work the investigation is limited on the physical characteristics of crime scene analysis. A single spatter of blood is not enough to determine the Area of Origin at a crime scene. But in this presented work for demonstrating the proposed working model the work is focused on the single drop based technique. Therefore the image processing technique (i.e. edge detection) is included initially for finding the curve and the angle of impact. Additionally for analyzing the velocity and the flight time estimation the low of motion and trajectory is analyzed. II. PROPOSED WORK This chapter demonstrates the proposed methodology of blood splatter analysis. In this context the method formulation for analyzing the blood spot in order to recovering the speed and angle of weapon operation is investigated. This chapter includes the basic theory and the detailed methodology description for accomplishing the required goal. System Overview Forensics is a domain of engineering and science which is used for analysis of any crime scene. Here the different concept of engineering, chemistry, physics and others are included for finding the different facts that can help for discovering the actions and reason of crime. Now in these days the forensics is also performed using the image processing concepts. By using the image processing concepts the crime scene is investigated and different facts about the particular crime is investigated. In this presented work the main aim is to use the image processing concepts for analyzing the blood splatter. The blood splatters of any crime scene used to find the type of weapon used, the angle on which the weapon is operated and the speed of weapon. Among these facts the angle and the speed of weapon is calculated in this work. Thus a new method for computing these facts is introduced in this work. The proposed technique is based on the blood trajectory analysis. Thus the low of motion and the concept of projectile are used for formulation and analysis of blood splatters. Using both the techniques the main aim is to compute or recover the information about the velocity and angle of weapon operation. Therefore the three basic equations of law of motion and the concept of trajectory