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Hopenet

Hopenet is a PyTorch neural network that estimates head pose from face imagery. Its public GitHub repository provides pretrained models and Python scripts for video inference using dlib face detections or externally supplied face bounding boxes.

Independent OpenViST project profile, based on linked sources.

Hopenet — OpenViST project profile in AI Models.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Hopenet when you need to run head-pose estimation on video and can meet its GPU requirement, install the documented Python libraries, and provide face detections through one of the supported paths.

Who it is for

  • Researchers studying head-pose estimation and the cited CVPR Workshops method.
  • Developers building video-processing workflows that need head-pose estimates and can provide face detections or bounding-box annotations.

Documented uses

  • Estimate head pose from recorded video using dlib face detections.
  • Process video with externally generated face bounding boxes in Dockerface format.
  • Compare estimates across the repository's pretrained model variants.
Before you choose

Requirements & limits

  • A GPU is required according to the README.
  • Video processing requires OpenCV; PyTorch and usual libraries such as NumPy are also listed.
  • The dlib script requires a dlib model and may produce a jumpy head center.
  • The supplied-box script requires annotations in Dockerface format; the README recommends this path for a smoother center.
  • The repository recommends the image-quality-robust pretrained model for real data and video; it describes the other two as useful for validating paper results.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Process video with dlib face detections

Run the repository's documented dlib-based video inference script.

Before you start

  • PyTorch and OpenCV for video, plus usual libraries such as NumPy.
  • A GPU, as required by the README.
  • A pretrained model snapshot, a dlib face model and an input video.

Steps

  1. Obtain a pretrained model snapshot from one of the model links listed in the README.

  2. Provide the snapshot, dlib model and video to code/test_on_video_dlib.py using its documented arguments.

  3. Set the output-string, frame-count and source-fps arguments for the invocation.

Expected outcome

The script processes the video using dlib face detections for head-pose estimation.

Guide limitations

  • The README warns that the center of the head can be jumpy with dlib detections.
  • The guide describes the documented invocation and does not establish execution results.
Source-based practical guide

Process video with supplied face boxes

Run the repository's video script with externally supplied face bounding-box annotations.

Before you start

  • PyTorch and OpenCV for video, plus usual libraries such as NumPy.
  • A GPU, as required by the README.
  • A pretrained model snapshot, input video and face-box annotations in Dockerface format: frame number, x_min, y_min, x_max, y_max and confidence.

Steps

  1. Obtain a pretrained model snapshot from one of the model links listed in the README.

  2. Prepare face-box annotations in the specified Dockerface format.

  3. Provide the snapshot, video and annotations to code/test_on_video_dockerface.py using its documented arguments.

  4. Set the output-string, frame-count and source-fps arguments for the invocation.

Expected outcome

The script processes the video using the supplied face boxes for head-pose estimation.

Guide limitations

  • The README recommends this route for a smoother head center than dlib detections.
  • The guide describes the documented invocation and does not establish execution results.
Evidence and transparency

Sources & review

Source record details
Source availability
Active
Sources checked
17 October 2026
Original website title
natanielruiz/deep-head-pose · Official homepage title · retained in its source language

Related options

Gluon implementation — The README links to an implementation of the work on Gluon.

MXNet implementation — The README links to an implementation of the work on MXNet.

TensorFlow with Keras implementation — The README links to an implementation of the work using TensorFlow with Keras.

Deep Head Pose Light — The README identifies it as a lightweight version of Hopenet.