What is closed circuit television [CCTV] enhancement and analysis?
Closed circuit television CCTV enhancement (or video enhancement) is viewing moving video images, normally captured in analogue format on magnetic tape such as VHS cassette or in digital format on hard drive, CD or DVD, and performing a specialist range of technical procedures in an attempt to improve the quality of and / or clarity of the images.
Closed circuit television CCTV analysis (or video analysis) is viewing moving video images, normally captured in analogue format on magnetic tape such as VHS cassette or in digital format on hard drive, CD or DVD, and performing a specialist range of forensic tests and procedures in an attempt to determine recorded events, for example, the actions taken by an individual or whether an individual might be seen to be carrying a gun, knife or other weapon.
Imagery Analysis considers images contained on film [in the case of traditional photography and print generated images], magnetic tape [in the case of analogue video such as VHS and some digitally recorded images], computer hard drives and /or optical disks such as CD / DVD / Compact Disk [in the case of some digitally recorded images]. Therefore images contained in or on many types of media, be it traditional photography, television or digital techniques using computers are able to be analysed.
Since 1996 the Analysis Bureau Imagery has had specialist industry experience in body mapping, body comparison and body identification from security closed circuit television [CCTV] video and still image forensic analysis. We provide image enhancement and enlargement with hard copy prints inserted in specially formatted Expert Witness Reports. We are Independent Expert Witnesses.
A variety of specialised tests and procedures creates more easily definable results which may then be analysed in greater detail. Including digitisation, enlargement and enhancement, this allows the optimisation of an image and a clarity of exhibit which is frequently not able to be viewed via alternative methods.
' Our testing ability combined with our reporting experience is frequently able to provide the vital evidence in a case - either for the prosecution or the defence party '
A range of traditional analogue techniques, such as is obtained from the employment of equipment that generates freeze frames and slow motion from the imagery exhibit, creates more easily definable results which may then be analysed in greater detail. A range of new technological techniques, including digitisation, enlargement, enhancement and titling provides the facility to optimise an image and /or range of images and is able to produce a clarity of imagery exhibit which is often not able to be viewed via alternative methods. Whilst working in the digitised video format, we frequently generate video at up to approximately thirty frames per second, which, when coupled with techniques such as interpolation, often reveal detail that could otherwise be overlooked and /or misconstrued. These techniques therefore apply strongly to security CCTV video, RTA CCTV video, digital, world wide web and internet imagery. A range of illustrative hard copy prints, in full colour where applicable, is frequently generated and form an evidential section of the Report. Our techniques normally allow for multiple copies of the relevant hard copy prints to be made available including for the ease of distribution to Jury members and Court officials, if required.
Our expertise includes:-
1] Chronology: "the provision of a Report covering the evolution of an incident along a predetermined time line"
2] Comparative Analysis: "the provision of a Report covering the comparison of a specific object or person which/who appears in one set of images with a specific object or person which/who appears in another set of images and considering the likelihood or otherwise of the object or person being the same"
3] Photogrammetry: "the determining of dimensional data from imagery as accurately as possible which is then able to be compared with actual physical dimensions obtained from on site measurement"
The Analysis Bureau Imagery are able to advise with respect to the quality of CCTV evidence, particularly in the ability to provide identification evidence.
We are able to assess the suitability of still and video images for facial mapping, clothing and body comparison.
We have specialist industry experience since 1996 in the forensic analysis of images.
For further details, please see: METHODOLOGY and / or CONTACT US