Visual Guide

How Our LEGO Piece Identifier Works

BrickFinder combines neural computer vision with official LEGO geometric catalog data to instantly recognize loose bricks, minifigure parts, and Technic elements from photos.

The Complete Identification Process

Image Processing & Match Candidate Pipeline
[Photo Capture] ──► [Image Analysis] ──► [Shape/Features] ──► [Catalog Matching] ──► [Candidate Ranking] ──► [User Verification]
1

Photo Capture

Upload a clear photo or snap a picture using your mobile camera or desktop webcam.

2

Image Analysis

Isolates brick boundaries, removes background noise, and normalizes lighting levels.

3

Shape & Features

Extracts stud counts, anti-stud tubes, bevel angles, slope pitch, and color histograms.

4

Catalog Matching

Compares extracted vectors against thousands of official LEGO Design IDs and LDraw 3D CAD meshes.

5

Candidate Ranking

Calculates match confidence scores (e.g. 96%) and displays similar candidate alternatives.

6

User Verification

User confirms match candidate, inspects set inventories, or searches exact stamped Design IDs.

Note on Candidate Matches: Identification results generated by computer vision represent probabilistic match candidates, not guaranteed physical verifications. We always encourage checking the physical Design ID stamped on the brick.

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