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forehead

vr.tr.forehead · thing-q41055

Enable an agent to recognise a forehead, record its observable form and condition, and determine which observations or interactions are appropriate within the available evidence and permissions.

Thing Registry Physical world and living systems PHY.OBJ
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 17 questions

Forehead identity and boundaries Establish which forehead is being represented and how its extent is determined.

Anatomical association

Connect the region to its bearing head and distinguish it from adjacent regions.

Identified forehead region

Record the evidence used to identify the region as a forehead on this head.

  1. Which person's head bears this forehead? provenance
  2. Which visible landmarks establish that this is the region above the eyebrows on the front of the head? definition

Regional limits

Make the upper, lower and lateral limits explicit.

Declared forehead extent

Record the boundary convention and any segments that cannot be located reliably.

  1. What landmarks or convention delimit the forehead from scalp, temples and eyebrows, including the space between the eyebrows? boundary
  2. Where hair loss, hair coverage or an indistinct transition obscures a boundary, what remains unresolved? boundary
Forehead form and motion Represent forehead dimensions, contour and changes during facial action.

Dimensions and contour

Capture measured extent and observed surface shape.

Landmarked form

Describe forehead height, width and contour with enough context to assess comparability.

  1. Between which landmarks, and by what calibrated method, were forehead height and width measured? measurement
  2. What contour or left-right difference is observable, and how were head pose and viewing angle recorded? measurement

Expression-dependent appearance

Separate resting surface appearance from changes during brow movement.

Forehead motion observation

Record visible movement and line changes without inferring emotion or neurological status.

  1. Was the forehead observed at rest, during a requested brow action or during spontaneous movement? provenance
  2. Which forehead lines or surface positions changed during the recorded action, and were both sides visible? measurement
Forehead surface and local condition Capture local appearance, reported sensations and changes through time.

Surface observation

Locate and describe visible forehead features.

Localised surface features

Record features such as lines, marks, apparent swelling or surface disruption without diagnosing their cause.

  1. What feature is visible, and where is it relative to the declared forehead landmarks? measurement
  2. Could lighting, cosmetics, sweat, hair or image processing affect the recorded appearance? provenance

Sensation and change

Record person-reported experiences and supported temporal comparisons.

Local condition history

Keep reported sensations and observed changes distinct while relating both to the same forehead location.

  1. What sensation does the person report at the forehead, at which location and with what reported onset? provenance
  2. What has changed relative to a dated earlier observation, and are expression, lighting and viewpoint sufficiently comparable? measurement
Forehead access and interaction Support decisions about exposing, observing, measuring or contacting the forehead.

Exposure and permission

Record visibility and authorisation for the proposed local interaction.

Forehead interaction readiness

Identify whether the target area is accessible and whether the intended action is authorised.

  1. Which part of the forehead is obscured by hair, clothing, a dressing or another covering? boundary
  2. Is the proposed observation, covering adjustment or contact authorised for this person and this forehead site? action
  3. Which recorded local features or reported discomfort require assessment under the proposed procedure before contact proceeds? action

Site-specific measurement

Tie readings taken at the forehead to their instruments and intended interpretation.

Forehead reading context

Preserve the acquisition context of a forehead-site sensor reading and identify limits on its use.

  1. What quantity was measured at which forehead location, using which device, mode, units and acquisition conditions? measurement
  2. What device instructions or applicable protocol establish whether this forehead reading is usable for the proposed decision? action

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.OBJ

What it is Filled

This model owns the forehead as an externally identifiable region of a person's head, including its recorded boundaries, surface, contour, movement and local condition, while relating it to the person and neighbouring anatomical regions.

In scope

  • Identification and delineation of the forehead on a particular person
  • Forehead height, width, contour and visible asymmetry under a stated measurement method
  • Local skin appearance, surface features and reported sensations
  • Forehead movement and surface changes during recorded facial actions
  • Accessibility, observation conditions and constraints on local contact

Out of scope

  • The person's identity, overall health and consent capacity
  • The scalp and hair as anatomical regions or structures in their own right
  • Eyebrows, eyelids, eyes and the nose as independently modelled structures
  • The skull, brain and internal head anatomy
  • Diagnosis of skin disease, headache or neurological conditions
  • Products, instruments and clinical procedures used on the forehead

Why it exists Filled

Enable an agent to recognise a forehead, record its observable form and condition, and determine which observations or interactions are appropriate within the available evidence and permissions.

Distinguishing features Filled

  • Locate the candidate region above the eyebrows on the front of the head; exclude the eyebrows and eyelids themselves.
  • Distinguish the upper forehead boundary from the scalp using a declared anatomical or visible-landmark convention; do not let a fringe or head covering define the boundary.
  • Distinguish lateral forehead from temple using recorded landmarks and a stated boundary convention rather than an unexplained crop.
  • Distinguish the forehead region from its skin or underlying bone: a surface mark or bone observation concerns an aspect of the region, not the entire thing.
  • Treat the space between the eyebrows explicitly as included, excluded or unresolved under the selected boundary convention.

What robots and AI may and may not do Filled

Must not

  • Use forehead images for facial recognition without the person's consent or a legal basis.
  • Infer character, intelligence or ethnicity from the shape of a forehead.
  • Touch or mark a person's forehead without consent.
  • Diagnose skin lesions or head injuries for a user.

Only with a human decision

  • Treating a head injury or deciding whether someone needs emergency care.
  • Applying religious or cultural marks to the forehead.

May

  • Locate the forehead in an image for tasks the person has consented to, such as fitting a device.
  • Report visible injuries or temperature readings to the person or their carer when asked.

Moral aspects Filled

  • Pseudoscience about head shape was used to justify racism; it must not return through automated analysis.
  • The forehead carries religious and cultural marks for many communities.

Who is affected

  • People being observed
  • Patients
  • Religious communities

Owners Filled

Steward

The person whose body it is.

Links to other meta-models Filled

parent

  • Q66560165 - registry parent class

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.forehead
  • Wikidata: Q41055 (https://www.wikidata.org/wiki/Q41055)

Direct properties required Filled

  • Person and head association: Reference to the person and head bearing this forehead
  • Boundary convention: Named convention or explicit landmark description, with unresolved segments
  • Forehead height: mm between declared upper and lower landmarks; unavailable when landmarks or scale are insufficient
  • Forehead width: mm between declared lateral landmarks at a specified level
  • Contour and asymmetry: Observed contour description, side differences, viewing angle and confidence
  • Surface feature distribution: Localised descriptions of lines, marks, scars, discolouration or surface disruption
  • Movement context: At rest, requested brow movement, spontaneous movement or unknown
  • Reported local sensation: Person-reported sensation, location, onset and optional stated severity scale
  • Local temperature reading: °C or °F with device, mode, site, time and acquisition conditions
  • Exposure and contact availability: Visible, partly obscured or obscured; contact permission granted, denied or unknown

Recognition required Filled

  • The area of the face between the eyebrows and the hairline.
  • Bounded at the sides by the temples.

Capabilities and actions required Filled

  • Locate and annotate the forehead using declared boundaries and visible landmarks.
  • Measure its dimensions or contour when scale, pose and landmarks support the measurement.
  • Record and compare local surface features under documented observation conditions.
  • Observe forehead changes at rest and during a permitted, requested brow movement.
  • Record an authorised local sensor reading with its acquisition method and limitations.
  • Determine whether a proposed forehead observation or contact must wait for permission, clearer access or an external procedure assessment.

Hazards and failure modes required Filled

  • Blows to the forehead can cause concussion or skull injury.
  • Skin cancers often appear on sun-exposed forehead skin.

Standards and interfaces required Filled

  • Terminologia Anatomica, issued by the International Federation of Associations of Anatomists, provides standardized anatomical terminology for the frontal region.

Context of use required Filled

  • The forehead is encountered in everyday facial recognition, expression and descriptions of head anatomy.
  • It is observed in clinical examinations, temperature measurement, personal care and the fitting of equipment that contacts the front of the head.

Sources Filled

  1. Wikidata item Q41055: forehead - identity and sense of the item
  2. Wikipedia: Forehead - general description of the item

Open questions

  • Which anatomical boundary convention should Vercy adopt for the forehead, particularly at the temples and the space between the eyebrows?
  • How should forehead extent and height be represented when the hairline is absent, receded, altered or obscured?
  • Which landmark and acquisition methods provide sufficiently repeatable forehead dimensions and contour comparisons for the intended tasks?
  • What observation vocabulary can describe forehead surface features consistently across skin appearances and imaging conditions without implying diagnosis?
  • Which externally maintained device and procedure models should govern forehead sensing, contact suitability and interpretation of local readings?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q41055/spec.json