The National Ballistics Imaging Comparison (NBIC) project

Song, Jun-Feng; Vorburger, Theodore V.; Ballou, Susan M.; Thompson, Ricardo; Yen, James H.; Renegar, Thomas B.; Zheng, Alan; Silver, Richard M.; Ols, M

doi:10.1016/j.forsciint.2011.09.016

Cited by 14 publications

(19 citation statements)

References 8 publications

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“…The NIST system for measuring and correlating surface profiles and topography images has been described previously [ 7 , 8 , 10 ]. The optical images that function as the Golden Images for the BRASSTRAX stations in the NIBIN were acquired by NIST and ATF personnel using the BRASSTRAX station at the ATF National Laboratory Center.…”

Section: Nist and Atf Measurements And The Golden Imagesmentioning

confidence: 99%

“…This method, therefore, enables the images at local IBIS sites to be traceable to the Golden Images of ATF’s National Laboratory Center. A similar approach was previously developed for SRM bullets [ 10 ].…”

Section: Nist and Atf Measurements And The Golden Imagesmentioning

confidence: 99%

“…After statistical analysis, draft control charts and control limits were developed for the proposed quality system. A report on the NBIC Project was published in 2012 [ 10 ].…”

Section: The National Ballistics Imaging Comparison (Nbic) Projectmentioning

confidence: 99%

“…The original NBIC was completed in 2010 and is discussed in a previous paper [ 10 ]. The NBIC project was carried out entirely on IBIS Heritage Model workstations.…”

Section: Introductionmentioning

confidence: 99%

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The Second National Ballistics Imaging Comparison (NBIC-2)

Vorburger

Yen

Song

et al. 2014

J. RES. NATL. INST. STAN.

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In response to the guidelines issued by the American Society of Crime Laboratory Directors/Laboratory Accreditation Board (ASCLD/LAB-International) to establish traceability and quality assurance in U.S. crime laboratories, NIST and the ATF initiated a joint project, entitled the National Ballistics Imaging Comparison (NBIC). The NBIC project aims to establish a national traceability and quality system for ballistics identifications in crime laboratories utilizing ATF’s National Integrated Ballistics Information Network (NIBIN). The original NBIC was completed in 2010. In the second NBIC, NIST Standard Reference Material (SRM) 2461 Cartridge Cases were used as reference standards, and 14 experts from 11 U.S. crime laboratories each performed 17 image acquisitions and correlations of the SRM cartridge cases over the course of about half a year. Resulting correlation scores were collected by NIST for statistical analyses, from which control charts and control limits were developed for the proposed quality system and for promoting future assessments and accreditations for firearm evidence in U.S. forensic laboratories in accordance with the ISO 17025 Standard.

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Section: Nist and Atf Measurements And The Golden Imagesmentioning

confidence: 99%

Section: Nist and Atf Measurements And The Golden Imagesmentioning

confidence: 99%

“…After statistical analysis, draft control charts and control limits were developed for the proposed quality system. A report on the NBIC Project was published in 2012 [ 10 ].…”

Section: The National Ballistics Imaging Comparison (Nbic) Projectmentioning

confidence: 99%

“…The original NBIC was completed in 2010 and is discussed in a previous paper [ 10 ]. The NBIC project was carried out entirely on IBIS Heritage Model workstations.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Second National Ballistics Imaging Comparison (NBIC-2)

Vorburger

Yen

Song

et al. 2014

J. RES. NATL. INST. STAN.

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“…The significant effect of lighting conditions on the image quality was observed to be a major cause of large deviations in the correlation scores for bullets. During the NBIC project mentioned above [10], which included the participation of 19 ballistics examiners from 13 US crime laboratories, each person conducted 24 image acquisitions on a SRM bullet and a SRM cartridge case over the course of about a year, and correlated the images with the 'Golden Image' developed at the National Laboratory Center of ATF [10]. The mean value for the 'Max Phase' score [13] of the SRM bullets, which represents the sum of correlation scores of six LEAs at their maximum correlation position, was 5662 with a standard deviation of 1373, or a relative variation of 24.2%.…”

Section: Image Versus Topography-'seeing Is Believing' or 'Measuring mentioning

confidence: 99%

Development of ballistics identification—from image comparison to topography measurement in surface metrology

Song

Chu

Vorburger

et al. 2012

Meas. Sci. Technol.

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Fired bullets and ejected cartridge cases have unique ballistics signatures left by the firearm. By analyzing the ballistics signatures, forensic examiners can trace these bullets and cartridge cases to the firearm used in a crime scene. Current automated ballistics identification systems are primarily based on image comparisons using optical microscopy. The correlation accuracy depends on image quality which is largely affected by lighting conditions. Because ballistics signatures are geometrical micro-topographies by nature, direct measurement and correlation of the surface topography is being investigated for ballistics identification. A Two-dimensional and Three-dimensional Topography Measurement and Correlation System was developed at the National Institute of Standards and Technology for certification of Standard Reference Material 2460/2461 bullets and cartridge cases. Based on this system, a prototype system for bullet signature measurement and correlation has been developed for bullet signature identifications, and has demonstrated superior correlation results.

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2019

Forensic Firearm Examination

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The National Ballistics Imaging Comparison (NBIC) project

Cited by 14 publications

References 8 publications

The Second National Ballistics Imaging Comparison (NBIC-2)

The Second National Ballistics Imaging Comparison (NBIC-2)

Development of ballistics identification—from image comparison to topography measurement in surface metrology

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