The document discusses ridgeology, the study of fingerprints. It notes that fingerprints are unique patterns of ridges and valleys on human fingers, and sometimes koala fingers. Fingerprint analysis examines ridge characteristics like endings, bifurcations, and pores to determine matches between fingerprints. Automated fingerprint identification systems (AFIS) can read, classify, match and store fingerprints to help identify unknown persons or suspects in criminal cases. The document includes an image showing examples of various ridge characteristics.
Portrait Parle via Bertillon System By G S ShaktawatG.S Shaktawat
The individualization of the human is very hard thing from the ages. People had done or invented certain ways for the proper individualization of the person. The Bertillon System is the first anthropological technique for individualization invented by Sir Bertillon.
This PPT contains the content mainly from the history to the decline of the Bertillon system. And the center point of the PPT is the Portrait Parle or Bertillonage.
Portrait Parle via Bertillon System By G S ShaktawatG.S Shaktawat
The individualization of the human is very hard thing from the ages. People had done or invented certain ways for the proper individualization of the person. The Bertillon System is the first anthropological technique for individualization invented by Sir Bertillon.
This PPT contains the content mainly from the history to the decline of the Bertillon system. And the center point of the PPT is the Portrait Parle or Bertillonage.
Formation of fingerprint, Types of fingerprint found at the crime scene, Fundamental principles of Fingerprint, Characteristics feature of Fingerprints, fingerprint patterns and their structure
A fingerprint is an impression of the friction ridges on all parts of the finger. A friction ridge is a raised portion of the epidermis on the palmar (palm) or digits (fingers and toes) or plantar (sole) skin, consisting of one or more connected ridge units of friction ridge skin. These are sometimes known as "epidermal ridges" which are caused by the underlying interface between the dermal papillae of the dermis and the interpapillary (rete) pegs of the epidermis. These epidermal ridges serve to amplify vibrations triggered when fingertips brush across an uneven surface, better transmitting the signals to sensory nerves involved in fine texture perception. The ridges do not assist in gripping objects, sometimes in fact reducing grip to as much as 30% compared to completely smooth fingerpads.
influence of writing instrument on handwritingMahipreet Kaur
in case of questioned documents writing instrument should b identified. this ppt. will give you the brief idea about the writing instruments and their effect on handwriting.
Formation of fingerprint, Types of fingerprint found at the crime scene, Fundamental principles of Fingerprint, Characteristics feature of Fingerprints, fingerprint patterns and their structure
A fingerprint is an impression of the friction ridges on all parts of the finger. A friction ridge is a raised portion of the epidermis on the palmar (palm) or digits (fingers and toes) or plantar (sole) skin, consisting of one or more connected ridge units of friction ridge skin. These are sometimes known as "epidermal ridges" which are caused by the underlying interface between the dermal papillae of the dermis and the interpapillary (rete) pegs of the epidermis. These epidermal ridges serve to amplify vibrations triggered when fingertips brush across an uneven surface, better transmitting the signals to sensory nerves involved in fine texture perception. The ridges do not assist in gripping objects, sometimes in fact reducing grip to as much as 30% compared to completely smooth fingerpads.
influence of writing instrument on handwritingMahipreet Kaur
in case of questioned documents writing instrument should b identified. this ppt. will give you the brief idea about the writing instruments and their effect on handwriting.
separating the overlapped fingerprints is a very challenging problem for the existing algorithms. The challenging work in separating overlapped fingerprint is the separation of mixed orientation field into its component orientation field. Relaxation labeling algorithm is proposed to perform the task of separation. Initially, we use Local Fourier analysis method in order to estimate the initial orientation field. Then Relaxation labelling algorithm is employed to detach the initial orientation field. Finally, by using Gabor filter the required component fingerprints are obtained.
Ijbb 167A Registration Algorithm for the Identification of Individual Parrots...CSCJournals
Ridges on the internal side of the upper bill tip (i.e., “filing ridges”) of parrots and some cockatoos form patterns that are characteristic of genera and, therefore, can be used for the classification of parrots and cockatoos. These patterns are also individually variable and, thus, could be used to fingerprint individual parrots. The objectives of our project were to evaluate the degree of individual variability and to develop a method and algorithm for registering and comparing the patterns of ridges by using a rigid registration technique. Within the data sets, we have been able to successfully identify each anonymized specimen using this method. For 22 of the 27 anonymized specimens, we found a degree of magnitude (the total error taken as the sum of distances between corresponding points) to be on the scale of 101 or greater between the match with the correct specimen and the match with all other members of the data set via a squared residual error assessment. For the remaining specimens, instances occurred in which the difference was smaller for two birds, but the correct bird was identified, nonetheless, while accurately ruling out over 90% of the incorrect bird matches.
This is a Fingerprint based class attendance system in higher institutions, The implementation take attendance of student in a class and give output of student eligibility status at the end of the semester or term
This presentation contains a case study on the project WildME which is based on computer vision and is helping in detecting aminals all across the world.
Chapter 4 – Physical Evidence
Class Characteristics
When the characteristics of physical evidence are common to a group of objects or
persons, they may be termed class. Regardless of how thoroughly examined, such
evidence can be placed only into a broad category; an individual identification
cannot be made because there is a possibility of more than one source for the
evidence.
Individual Characteristics
Evidence with individual characteristics can be identified as originating with a
particular person or source.
Soil is the natural accumulation of earth materials, such as weathering rocks,
minerals, and decomposing plants, along with pollen.minerals, and decomposing plants, along with pollen.
1. Soil examinations can determine whether soils share a common
origin by comparing color, texture, and composition.
2. Although it is class characteristic evidence, the analysis of soil
evidence can help focus investigations and discredit alibis.
3. The pollen in soil or on plants and grass can also be very
significant in determining whether or not a suspect was at the scene.
Locating and Handling Soil Evidence
Soil evidence may be important when the suspect drives or walks on unpaved
areas, so that it is picked up by tire treads or the bottom of shoes and cuffs of
the pants. It may also be recovered in a number of other places, such as the
floor board of the subject's car or on articles in the trunk of his vehicle,
including shovels and blankets.
Preserving Shoe/Footwear Prints
Footwear prints may, or may not be readily visible. If they are not immediately
apparent, turn the lights off and search for them using a flashlight.
Comparing Shoe Print Evidence
SICAR is a software package which classifies, archives, and identifies shoe prints.
Preserving Footwear Impressions
As in the case with footwear prints, the location of footwear impressions should be
photographed as part of the general scene and then with a scale.
Preserving Shoe Impressions in Snow
Dental stone is also the preferred material for casting impressions in snow,
replacing the more difficult and time consuming process of using sulfur, which has to
be heated.
Photographs of footwear impressions at a crime scene
In the first photo only the impressions are shown
In a subsequent photo a ruler will be added to show sizes
Later casts will be made of the impressions
GLASS
Glass is important as physical evidence because of the frequency with which it is
encountered.
A. It is essential that the crime scene technician and investigator
understand the ways in which glass reacts to force.
B. Handling Glass Evidence
Tape should not be used to collect glass evidence and any processing for latent
prints is ordinarily done in the laboratory.
An important question often associated with motor vehicle accidents and hit-
and-run cases involves whether or not the lights of a suspect vehicle were and-run cases involves wheth.
I-Talents đã giúp hàng ngàn người Việt Nam tiếp cận công nghệ này,Và tất cả mọi người đã vô cùng hài lòng với nền tảng công nghệ của Giáo Sư Lin Jui Pin. Bằng sáng chế của Gs Lin được Mỹ cấp chứng nhận từ năm 2008, mã sáng chế US7406186. Một công nghệ phân tích vô cùng TUYỆT VỜI và đã được I-Talents ứng dụng hơn 6 năm nay.
Secured Employee Attendance Management System Using FingerprintIOSR Journals
In this paper an effective employee attendance management system using fingerprint is introduced.
It is used to managed the attendance of employees in any organization. All organizations and institutions are
established to achieve specific objectives or goals. The identification and authentication of employee is very
necessary for achieving any objective or goal. To identify and authenticate the identity of an individual
employee by their names, ID numbers and signatures only are not enough, because any one can misuse other's
identity and this type of problem occur very often. Fingerprint can be applied for recognizing any person,
because human fingerprints are unique to each person and can be regarded as some sort of signature, certifying
the person's identity. This method of employee identification and authentication will improve the attendance of
employees thereby improving security, productivity and skill which will in turn improve the progress of
organizations.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
1. 8 th Grade Forensic Science Image from ftp://sequoyah.nist.gov/pub/nist_internal_reports/ir_6534.pdf T. Trimpe 2007 http://sciencespot.net/ Ridgeology A Closer Look at Fingerprints
2. Ridgeology : The study of the uniqueness of friction ridge structures and their use for personal identification . 1 1 Introduction to Basic Ridgeology by David Ashbaugh, May 1999 Image from http://www.cs.usyd.edu.au/~irena/minutia.gif The koala is one of the few mammals (other than primates) that has fingerprints. In fact, koala fingerprints are remarkably similar to human fingerprints; even with an electron microscope, it can be quite difficult to distinguish between the two. Did you know? As we have learned in our first lesson, a fingerprint is made of a series of ridges and valleys on the surface of the finger. The uniqueness of a fingerprint can be determined by the pattern of ridges and valleys as well as the minutiae points, which are points where the ridge structure changes.
3. Fingerprint Identification When minutiae on two different prints match, these are called points of similarity or points of identification . At this point there is no international standard for the number of points of identification required for a match between two fingerprints. However, the United Kingdom requires a minimum sixteen points while Australia requires twelve . Automated Fingerprint Identification System ( AFIS ) http://www.fdle.state.fl.us/CrimeLab/images/fingerrint%20comparison%20for%20afis.jpg AFIS is a computerized system capable of reading, classifying, matching, and storing fingerprints for criminal justice agencies. Quality latent fingerprints are entered into the AFIS for a search for possible matches against the state maintained databases for fingerprint records to help establish the identity of unknown deceased persons or suspects in a criminal case.
4. Ridge Characteristics Use these characteristics as points of identification when comparing fingerprint samples. The more points you can find in common, the better the match!
6. How many ridge characteristics can you identify in this fingerprint? http://www.dkfz.de/tbi/projects/bmcv/images/iu_it246_04s_fingerprint1.jpg
7. 1 – Blow up your balloon about halfway and twist the end to keep the air from coming out. Do not tie it off! 2 – Use an ink pad to make a print with all of your fingers and label each one with a permanent marker. Write your name on the balloon as well. 3 – Blow up the balloon to full size and tie the end. 4 – Analyze the fingerprints to find several ridge structures that we have discussed. Use a highlighter to mark these structures on your “My Prints” worksheet. Try It! Think About It! Which ridge structures were most common in your fingerprints? Which ridge structures were most common in your group? Were there any structures that were not found in any of the fingerprints? Balloon Fingerprint Activity: http://www.msichicago.org/fileadmin/Education/learninglabs/lab_downloads/fingerprint_analysis.pdf
