What needs to be clarified
The task is to determine which facial details in infrared footage are usable, distinguishing observed features from their interpretation. The assessment must consider the suitability of each item and whether the grounds for the proposed conclusion can be checked.
Materials to prepare
- Original night footage with adjacent frame sequence
- Daylight reference photographs without recompression
- Illumination-mode and camera-setting information
What to compare
Separate visible element geometry from tonal rendering; check overexposure and contour stability across nearby frames, using only reproducibly visible features for comparison. Every significant feature is linked to a specific part of the material. Similarities and differences are assessed together, considering alternative explanations and the limitations of the examination method.
Possible outcome of the analysis
A possible deliverable is a map of facial regions suitable for comparison, with verifiable examples and reasons for the assessment. Unresolved questions and additional examinations needed are stated separately, without promising an answer in advance.
Limits of the conclusions
Skin tone in infrared footage does not determine a person’s appearance. Conclusions are confined to the examined items and stated conditions; insufficient features require an explicit finding that the relevant question cannot be resolved.