AprilTag Detector is a tools app developed by Sean M. Messenger.
Download Statistics
AprilTag Detector has been downloaded 4.1 thousand times. In the last 30 days, the app was downloaded 27 times.
User Ratings
AprilTag Detector is rated 4.83 out of 5 stars. The rating is based on 16 ratings.
App Information
AprilTag Detector is FREE to download. The APK download size is 1.38 MB. The latest version available is 1.2. The last update was on February 28, 2023.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play January 2023.
Description
This app provides core apriltag detection functionality directly from APRIL Robotics Lab alumni. Supports all apriltag2 tag families. Tunable settings for decimation, hamming error, etc available. Detected valid tags will be outlined in the preview window.
Supported tag families include: - 36h11 (recommended) - 36h10 - 25h9 - 25h7 - 16h5 (used by FIRST Robotics Competition in 2023)
Performance is based on user settings and devices, if you're running into slow detections, consider increasing the decimation factor or number of threads used.
The app is open source and available here: https://github.com/johnjwang/apriltag-android
The core tag detection is from University of Michigan's APRIL Robotics Lab, which is distributed with the BSD 2-Clause License and is available here: https://github.com/AprilRobotics/apriltag
Recent changes: 3x improvement in detection speed, 10 Hz easily feasible for most reasonable settings/phones. Decoupled camera, detections, and tag rendering. Improved rendering for detections: shades region, more visible axes, and tag ID is rendered. Add max hamming error parameter, defaults to 0 instead of the previous fixed 2. Reduces false positives on 16h5 particularly. Increase default decimation to 8, add higher options. Increase default nthreads to 4. Add diagnostics options. Misc. bug fixes.
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Can add more tag family? It would be handy if we can check did we print the right tag using this app.
★★★★☆Dhruv suthar· Mar 7, 2025
Good but please add ARRCO tags too, there is no app for ARRCO, also tag maker in batches
★★★★☆Plato's cry· Jun 13, 2025
Not compatible with 41h12 tags. (The ones I need to detect) Otherwise good. Works with frc apriltags
★★★★★Aaron Graeve· Apr 24, 2024
App claims to do one thing (detect April tags). App does that thing, does it well, and doesn't do other things it didn't advertise. The ideal single utility app.
★★★★★Amanda Kline· Feb 4, 2023
Camera's kinda slow unless you up the decimation rate, so make sure you bump it up to 8 or so. Thanks dev friend!
Google Play Rankings for AprilTag Detector
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Technologies used by AprilTag Detector
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