Dual Camera, IMU, and GPS data recorder for Android

Last update: Oct 24, 2022

Overview

Visual-Inertial Recorder (VIRec)

Record camera frames at ~30fps from one or two camera sensors, Inertial Measurement Unit (IMU) measurements at ~100Hz and GPS locations data synced to one clock source on Android devices.

The app is released at here.

Description

The app is developed from the Grafika project.

Camera frames are saved into H.264/MP4 videos by using the Camera2 API (setRepeatingRequest, onCaptureCompleted), OpenGL ES (GLSurfaceView and GLSurfaceView.Renderer), and MediaCodec and MediaMuxer.
The metadata for camera frames are saved to a csv.
The timestamps for each camera frame are saved to a txt.
IMU & GPS data are recorded on a background HandlerThread.

Features

~30fps camera frames, 100Hz IMU measurements and GPS data
The visual, inertial and location data are synchronized to one clock.
The focal length in pixels and exposure duration are recorded.
Dual camera recording at the same time.
Select from multiple filters to apply it to the recorded video.

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Comments

default recording folder

Thanks for your great work,my device got some compatibility issues with the menu item(IMU,Setting),could you please tell me where is the default setting of result location,to avoid modifying.

opened by belkahorry 2

Releases(v1.0)

v1.0(Sep 6, 2021)
Record camera frames at ~30Hz from two cameras simultaneously.

Record IMU data synced to camera frames.

Record GPS data.

Choose multiple filters to apply on recorded video.

Select which camera sensors to use.

Select the frame size.

Select the IMU sampling frequency.

Source code(tar.gz)
Source code(zip)
VIRec.apk(2.02 MB)

Owner

AUT 3D Vision

Amirkabir University of Technology 3D Vision team

GitHub https://a3dv.github.io/autvi#virec

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