ISTOV - Colour Accreditation for Clinical Photography

Colour accuracy from studio to the consulting room

The new Image Skin-Tone Optimisation and Verification system (ISTOV), provides a solution that following a successful clinical trial has been adopted by the Queen Elizabeth Hospital Birmingham, one of the largest NHS Trust's in the country. ISTOV can be easily integrated into your current imaging workflow with immediate benefits apparent to both photographers and consultants.

It's simple when you know how; you don't need to be a computer expert, just a professional photographer," - explains Steve Hearn, Photographer at the Clinical Illustration Department of the QEHB.

ISTOV System offers:

  • Colour accurate and consistent image capture from your range of cameras.
  • Controlled colour accurate image preparation in the studio .
  • Colour accurate image display and assessment in the consulting rooms.
  • Colour accountability with every image.
  • ISTOV Colour Accreditation: annual review, certification and support.

Colour you can trust in the consulting rooms

A clinical illustration department may have of one or many cameras. Capturing the same image with each camera will result in as many colour variations as cameras, inferring that with even just one camera, colour will not be correct.

Displaying the image on one or many monitor produces a further range of colour variations.

Assessing a patient in the consulting rooms brings a further range of variables, the consultant's monitor and the viewing light conditions.

The ISTOV system takes control of all these variables, resulting in a colour accurate image that can be trusted in the consulting rooms and at any location.

ISTOV in the Photographic Studio

  • Camera calibration (5 minutes, monthly) corrects cameras to a known standard.

  • Include an ISTOV chart in every image.

  • To achieve standardisation, balance each image on the grey reference to compensate for variations in lighting and exposure, resulting in accurate consistency across all images. This one-click scientific approach replaces time-consuming subjective unqualified colour adjustments. These disposable charts (38mm x 12mm) include a scale, nine reference skin-tone colours a neutral grey and shadow detail reference. The neutral grey also provides accountability that an image has been captured and processed correctly.

  • Monitor calibration (5 minutes monthly) ensures monitors in the studio are colour accurate and set to an appropriate intensity. A monitor hood (fits all standard monitors) and a viewing light are supplied for each monitor to benefit standardised viewing conditions.

ISTOV in the Consulting Rooms

  • Monitor calibration (5 minutes monthly) enables consulting room monitors to be colour accurate and set to an appropriate intensity. A monitor hood (fits all standard monitors) and a viewing light are supplied for each monitor to benefit standardised viewing conditions.

    A monitor hood facilitates setting reduced monitor brightness, resulting in a more accurate display whilst being environmentally friendly, using less power and extending the monitors life. This also reduces the chance of eyestrain and the hood provides privacy benefitting patient confidentiality.

  • The ISTOV chart in each image ensures a direct comparison can be made from captured image to an equivalent chart in the consulting room. This provides visual verification that the monitor is colour correct. If not, a valid 'comparative' colour assessment can still be made to the range of skin-tones in the chart against the patient.
 

 

Further details of the ISTOV system are available from Color Confidence.

e-mail: ISTOV@ColorConfidence.com
Or call: 0121 684 1234 and select #4