PapLens
Checking system

Cervical cytology · Research workspace

Review the field.
See the evidence.

Upload a field, choose a model, and explore its classification alongside a spatial attention map.

Research use only · Not for diagnosis or patient care

01

New field analysis

Reference fields

Start with a sample

Select a field, then run your chosen analysis.

Sample labels describe the reference fields, not a new model prediction.

Method note

From field image to evidence map

The model learns from image-level labels while exposing the relative contribution of individual regions.

  1. 01

    Tile

    The field is divided into overlapping 1280 px regions.

  2. 02

    Filter

    Low-information background glass is excluded.

  3. 03

    Encode

    ResNet-50 converts each retained region into features.

  4. 04

    Attend

    Gated MIL weighs regions and produces one field-level result.

Research context and limitations

Dataset

Trained on 2,253 conventional Pap-smear field-of-view images from PapSmear-BD. The application does not distribute the dataset.

Intended input

High-power conventional Pap smear fields. Whole-slide images, liquid-based preparations, and phone photographs are outside the validated input domain.

Interpretation

Attention reflects model focus and should not be interpreted as a segmentation mask, a calibrated risk estimate, or a clinical diagnosis.