---
title: "How to check bottle fill levels and caps with computer vision"
description: "A camera after the filler and capper can image every bottle, jar or can as it passes. A computer vision model trained on your own containers can check the fill height against the target line, and spot missing, crooked or loose-looking caps, missing seals and damaged containers. It can signal a reject gate or alert the line operator, and it keeps a photo of each rejected item so the cause can be traced to a filler head or capper. Line staff check rejected items, adjust the equipment and decide when to stop the line, and your usual quality checks stay in place."
url: https://lidvizion.ai/answers/how-to-check-bottle-fill-levels-and-caps-with-computer-vision/
site: Lid Vizion
index: https://lidvizion.ai/llms.txt
---

[Direct answers](https://lidvizion.ai/answers/)

# How can computer vision help a bottling or filling line catch underfilled containers and bad caps?

A camera after the filler and capper can image every bottle, jar or can as it passes. A computer vision model trained on your own containers can check the fill height against the target line, and spot missing, crooked or loose-looking caps, missing seals and damaged containers. It can signal a reject gate or alert the line operator, and it keeps a photo of each rejected item so the cause can be traced to a filler head or capper. Line staff check rejected items, adjust the equipment and decide when to stop the line, and your usual quality checks stay in place.

## What this means in practice

- Place a camera and steady lighting just after the filler and capper.
- Label images of good containers and each fault type for every product and size.
- Train or tune a model and connect it to an alert or reject gate.
- Line staff review rejected items and adjust the filler or capper as needed.
- Track rejects by filler head and capper so recurring faults get fixed at the source.

## How Lid Vizion approaches it

We start with the business decision and operating context, define ownership and measurable milestones, then use configuration, integrations, automation, or custom software only where each earns its place.

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