Insole outlines: separate the cut contour from surface texture

The application capture shows a dark insole outline against a bright backlight. It provides a clean starting point for comparing a cut part with a template while keeping flattening, scale and placement in the validation plan.

Control flexible-part shape before comparing the cut outline.

3D illustration of the inspection setup: Insole outline and cut shapeSource white-backlight capture showing the insole perimeter as a dark silhouette.Real camera capture
3D illustration of the arrangement
  • MethodTransmitted white backlight
  • EvidenceReal application-lab capture
  • SetupSource light identified; imaging kit proposed
  • AcceptanceValidate on your own parts

Explore it in 3D

Insole outline and cut shape

Camera and available lens CAD are published models. Lens and light envelopes use printed dimensions. The linked station uses its published base size and column height; carriage, brackets, fittings, parts and spacing are illustrative. Confirm load, travel, fasteners and clearances before ordering. Light paths explain the arrangement and do not simulate optical performance. Representative part geometry is illustrative, not reconstructed inspection evidence.

The challenge

Fabric, foam and printed top layers add texture that is unrelated to the cut contour.

Flexible parts can curl or stretch, so their projected outline depends on support and placement.

How it was solved

The source uses the white LS-BKL-0727 side backlight for an insole measurement example. Place the part flat between the light and camera.

Set the field from the actual part size and verify lens coverage. The illustrated field is a proposal and the source provides no insole dimensions or calibrated result.

Why it works

  1. 1

    Transmitted light suppresses the top-surface appearance and emphasizes the outside boundary.

  2. 2

    Template matching can compare shape, but an absolute size decision still needs calibration and controlled part flattening.

Lighting application-lab catalog capture

Evidence you can inspect

Visible in the images

The cut insole perimeter is visible as a dark silhouette.

What the source reports

The source labels the image insole measurement with a white LS-BKL-0727; no dimensions or accuracy are reported.

How to use this evidence

One appearance example, without a calibrated scale, deformation study or demonstrated cutting tolerance.

From image contrast to a production decision

What to validate on your part

  1. 01

    Define the flattening method

    Test the allowed support and clamping conditions without stretching the part.

  2. 02

    Calibrate the full field

    Check scale and distortion at heel, toe and both sides of the actual part.

  3. 03

    Compare real production variation

    Include all accepted sizes, materials and known cutting defects before setting template tolerances.

From the demo to your test bench

Parts in this setup

Build this system

"Tested" identifies the part named in the source. "Our pick" is a proposed alternative or supporting part. Confirm colour, optics, controllers, power supplies, cables and mounting before ordering.

The set-up

LightingTransmitted white backlight
Test lightLS-BKL-0727, white
Luminous area (printed)400 × 300 mm
Camera and lensSource versions not identified; current proposed parts below
3D spacingIllustrative, to be confirmed on the sample
Derived proposed field281.52 × 235.52 mm = sensor dimensions / 0.03x; source field not supplied
Mounting (proposed)LS-MNT-0101; 800 mm column, 600 × 450 mm base, glass tray and two light holders

Mount the optics with intent

The station is an optical test bench, with its two lighting holders included in the catalog listing. The 3D column and base follow the published height and footprint. Carriages, clamps and part supports are schematic: confirm camera screw pattern, lens support, light fasteners, permissible load and actual travel before ordering.

Complete the electrical system

Select a controller against the exact light voltage, drive mode and power, then confirm camera data/power/I/O cables and a suitable PC. These are not silently added to the proposed optical kit.

Build this system

Start from this setup, adapt it to your part.

The configurator opens with this study's camera, lens, light and station picked. Swap any part, check fit and price, then buy or ask for a quote.

Camera and available lens CAD are published models. Lens and light envelopes use printed dimensions. The linked station uses its published base size and column height; carriage, brackets, fittings, parts and spacing are illustrative. Confirm load, travel, fasteners and clearances before ordering. Light paths explain the arrangement and do not simulate optical performance. Representative part geometry is illustrative, not reconstructed inspection evidence.