Step-by-step DeGirum PySDK guides for Hailo

Guides
1

Over the past few months, we’ve helped many developers kick-off Hailo app development with DeGirum PySDK. A common request was a clear learning roadmap—how to explore features in the right order and build up capability, step by step.

We’ve turned that feedback into a progressive set of guides that go from simple to advanced and cover practical, real-world workflows.

What’s inside (roadmap at a glance)

Basics (start here)

  • Before you begin — prerequisites (venv, HailoRT/driver check, device discovery) and an optional workspace token step to streamline model access.

  • First inference — a 1-minute quick win to confirm everything works end-to-end.

  • Specifying a model — how ModelSpec defines the model, where artifacts live, and where inference runs.

  • Running inference — the three core paths: single images, video/streams (via a convenience wrapper), and folders.

  • Inference results — the InferenceResults object: inspect structured outputs, visualize overlays, save, or stream.

  • Measuring performance — baseline checklist, per-frame timing, throughput, and regression tracking.

Intermediate guides

  • Class filtering — focus outputs on the labels you care about.

  • Object tracking — attach a tracker to assign persistent IDs and enable motion analytics.

  • Zone-based counting — polygon zones for traffic/retail analytics, with interactive zone editing.

  • Tiling— four tiling strategies to boost small-object recall and merge results cleanly.

  • Model properties — device/runtime selection, input preprocessing, output postprocessing, and overlay controls.

Advanced

  • Custom video sources — plug in OpenCV, GStreamer, PiCamera2, SDKs, or any generator with predict_batch.

  • AI Server — use the DeGirum AI Server with cloud or local models; pointers for monitoring via HAILO_MONITOR.

Start here

DeGirum Docs for Hailo — quickstart + the full guided journey.

If there’s a use case you’d like us to add (e.g., multi-stream, multi-models, smart parking, industrial inspection, healthcare), reply below—we’re expanding the series based on community feedback.