Image evaluation
Subspecialties: None
Imaging specialists are involved in the origination,
retrieval, identification, examination and assessment of data held
in image recording media.
The range of practitioners who do work of this type is wide and
diverse. They may be divided into two broad groups, reflecting the
two main stages of the process: image
origination
and image
processing.
Image
evaluation includes the processes of:
- detection: the identification of an image as an object, a
person, etc
- recognition: the expression of an opinion based on personal
knowledge and experience about characteristics, patterns, clothing,
etc
- identification: the presentation of a professional opinion that
an image represents a particular individual, object or
scene.
Note: We distinguish
between the evaluative stage in this specialty and the
investigative stages (image origination,
processing and technical
analysis) which form the specialty of Imaging under the
Incident Investigation
Sector. Some practitioners work in only one stage of
the process, some in two or three, and a few in all four.
You are welcome to apply for
registration in more than one area, but you should consider
carefully whether you are likely to meet the required standard. You
should not apply in evaluation if you do not prepare opinion
evidence.
Download an application pack
Imaging
Subspecialties: Origination, Primary processing, Advanced
processing, Technical analysis
Imaging specialists are involved in the origination, retrieval,
identification, examination and assessment of data held in image
recording media.
The range of practitioners who do work of this type is wide and
diverse. They may be divided into two broad groups, reflecting the
two main stages of the process: image origination and image
processing.
Image origination involves the generation of still or moving
images of scenes, property, individuals or marks, sometimes using
specialist lighting or special techniques such as 3-D.
Image processing involves the use of specialist techniques in
handling images to produce evidence. Primary processing is the
initial retrieval of image data, using established processes and
techniques to create images in a viewable form. Advanced processing
involves the use of knowledge and skills to:
- enhance images, enabling the viewer to extract relevant
information without compromising the integrity of the
original,
- restore images, correcting known degradations and distortions
to return to a known original,
- optimise images, displaying and presenting them for a range of
audiences.
Technical analysis involves the:
- restoration of images by correcting quantifiable distortions,
for example those resulting from deficiencies in the equipment that
has been used,
- comparison of images and the identification of points of
similarity and dissimilarity,
- measurement of people and objects captured on images, using
formulas to reach conclusions on size, scale and dimension within
agreed ranges of tolerance,
- authentication of images, establishing the veracity of an image
including whether it is an original or has been edited,
- presentation of images, including 3-D rendering and 'virtual'
recreations.
Note: We distinguish between the investigative stages in
this specialty and the evaluative stage, which forms the specialty
of Image evaluation under the Science & Engineering Sector.
Some practitioners work in only one stage of the process, some in
two or three, and a few in all four.
You are welcome to apply for registration in more than one area,
but you should consider carefully whether you are likely to meet
the required standard. You should not apply in evaluation if you do
not prepare opinion evidence.
Download an application
pack