Abstract：
:As the closed-circuit television (CCTV) security industry transitioned from analog media to digital video recorders (DVRs) with digital storage, the law enforcement community struggled with the means with which to collect the recordings. New guidelines needed to be established to determine the collection method which would be efficient as well as provide the best quality evidence from live DVRs. A test design was developed to measure, quantify, and rank the quality of acquisition methods used on live systems from DVRs typically used in digital CCTV systems. The purpose was to determine guidelines for acquiring the best quality video for investigative purposes. A test pattern which provided multiple quantifiable metrics for comparison between the methods of acquisition was used. The methods of acquisition included direct data download of the proprietary file and open file format as well as recording the video playback from the DVR via the available display monitor connections including the composite video, Video Graphics Array (VGA), and high-definition multimedia interface (HDMI). While some acquisition methods may provide the best quality evidence, other methods of acquisition are not to be discounted depending on the situation and need for efficiency. As an investigator that needs to retrieve video evidence from live digital CCTV systems, the proprietary file format, overall, provides the best quality evidence. However, depending on the circumstance and as recording technology continues to evolve, options other than the proprietary file format may provide quality that is equal to or greater than the proprietary file format.
journal_name
J Forensic Scijournal_title
Journal of forensic sciencesauthors
Bruehs WE,Stout Ddoi
10.1111/1556-4029.14307subject
Has Abstractpub_date
2020-07-01 00:00:00pages
1155-1168issue
4eissn
0022-1198issn
1556-4029journal_volume
65pub_type
杂志文章abstract：:Cardiovascular disease is the leading cause of sudden death in the world. The etiology of sudden cardiac death involves a wide range of diseases, but seldom pericardial cysts. A pericardial cyst is an uncommon cyst usually located in the middle mediastinum and rarely in the posterior part. They are usually harmless an...
journal_title：Journal of forensic sciences
pub_type：
doi：10.1111/1556-4029.13826
更新日期：2019-01-01 00:00:00
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journal_title：Journal of forensic sciences
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doi：
更新日期：1998-03-01 00:00:00
abstract：:Literature regarding bone color is limited to determining location of primary and secondary dispositions. This research is the first to use bone color to interpret the sequence of events surrounding body disposition. Two scenarios were compared-bones buried and then exposed on the ground surface and bones exposed then...
journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2009.01086.x
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.12391
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journal_title：Journal of forensic sciences
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doi：10.1111/1556-4029.14247
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13385
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1986-10-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：2001-11-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2010.01395.x
更新日期：2010-07-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1988-05-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2012.02280.x
更新日期：2013-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章,评审
doi：
更新日期：1988-09-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1983-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2006.00126.x
更新日期：2006-05-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13040
更新日期：2016-07-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1999-11-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.12528
更新日期：2014-09-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.13415
更新日期：2017-09-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
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journal_title：Journal of forensic sciences
pub_type： 历史文章,杂志文章
doi：
更新日期：2005-01-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2011.02017.x
更新日期：2012-05-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.14070
更新日期：2019-11-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/j.1556-4029.2011.01864.x
更新日期：2011-11-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
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journal_title：Journal of forensic sciences
pub_type： 杂志文章
doi：10.1111/1556-4029.14318
更新日期：2020-07-01 00:00:00
abstract：:Bipartite patella is recognized as a developmental anomaly of ossification. Most of them are asymptomatic and are discovered incidentally. Bipartite patella is sometimes misdiagnosed as a patella fracture, because the x-ray images of both these conditions may appear very similar. In this case, the patient complained o...
journal_title：Journal of forensic sciences
pub_type：
doi：10.1111/1556-4029.13357
更新日期：2017-07-01 00:00:00
