kifu.me Camera User Manual

kifu.me Camera is an app for recording backgammon matches with your smartphone camera and uploading the video and object detection data to kifu.me.

Table of Contents

• Introduction
• Installation
• Login
• Home Screen (Match Data List)
• Recording a New Match
• Recording
• Uploading Data
• FAQ and Notes

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Introduction

By using this app, you can record backgammon matches using only your smartphone without any special equipment. Recorded videos are saved in the device’s “Photos” app. A compressed video file and board detection data are sent to kifu.me.

Installation

kifu.me Camera can be installed from the App Store.

Login

When you launch the app, the login screen appears. Please log in with your kifu.me account email address and password.

Home Screen (Match Data List)

Upon successful login, the home screen is displayed. Here you can manage past match data and start new matches.

• Match List: Saved match data is displayed in card format. You can identify matches by their thumbnails.
• + New Match: Starts recording a new match.
• Upload: Uploads unsent data to the kifu.me server.
• Play video: Checks the recorded video. Pressing the button opens the device's "Photos" app and plays the video.
• Resume recording: Resumes recording from where the interrupted match left off.
• Delete: Deletes unwanted match data from the app.
  • *Note: Even if deleted from the app, the video file saved in the "Photos" app is not deleted.*

Recording a New Match

Pressing the “+ New Match” button on the home screen takes you to the match information entry screen.

Please enter the following information:

1. Match Length: Enter the number of points for the match.
2. Top Player: Enter the name of the player sitting at the top.
3. Bottom Player: Enter the name of the player sitting at the bottom.

When entry is complete, press the “OK” button to proceed to the recording screen.

Recording

On the recording screen, align the board while viewing the camera feed and record the match.

1. Camera Setup and Adjustment

• Alignment
  • Position your smartphone so that the backgammon board appears within the white wireframe (guide frame) displayed on the screen.
• Lens Switching
  • Tap the buttons on the screen (e.g., "0.5", "1.0") to switch between wide-angle and ultra-wide-angle lenses. Select the field of view that fits the entire board comfortably.

2. Checking Alignment

3. Recording Operations

• Automatic Recording: Recording starts automatically after the board remains aligned for 5 seconds. A countdown is shown during the last 3 seconds; tap the close button to cancel. If the board becomes misaligned, the countdown is canceled and starts again when alignment is restored. After canceling, automatic recording is re-armed once the board becomes misaligned and is aligned again.
• Start Recording: You can also press the record button (red circle) while the green frame is displayed to start recording manually.
• Pause/Resume: For breaks or interruptions, stop recording with the pause button and resume from where you left off with the resume button.
• Finish: When the match is over, press the stop button to return to the home screen.

Uploading Data

After the match, select the target match from the list on the home screen and press the Upload icon.

1. Confirmation: The total size of the data to be uploaded is displayed. Press "Upload" to start.
2. Sending: A progress bar is displayed. Do not close the app until it is complete.
   • *Note: Screen sleep is disabled during upload.*
3. Completion and Auto-Deletion: Upon successful upload, the temporary object detection data saved in the app is automatically deleted.
   • The original video file in the "Photos" app remains.

FAQ and Notes