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[CHI24] AI-Assisted In-Context Writing on OHMD During Travels

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PANDALens

A software that enables you to write ubiquitously on OHMD with the assistance of GPT.

Publications

Contact person

Requirements

  • Python 3.9.18 (better to create a new conda env or virtual environment first.)
  • Note: macOS is the preferred and verified OS, as many functions (e.g., GPS and text-to-speech) in the release code use the macOS native APIs. But feel free to replace them with other APIs when you are using another OS.
  • Install FFmpeg and add it to your environment path.
  • An OpenAI account to access the GPT API, a Hugging Face account to access the BLIP API, and a Google Cloud Account to access the Vision API.
  • Pupil Lab software for eye tracking.

Installation and Setup

  1. Clone the repository to your local machine.

  2. Run pip install -r requirements.txt to install the necessary Python packages.

  3. Set your environment variables with your OpenAI API keys. You will need two keys in our case (create them here: OpneAI Account), which can be set as follows:

    • MacOS:

      • Option 1: Set your ‘OPENAI_API_KEY’ Environment Variable using zsh:

        1. Run the following command in your terminal, replacing <yourkey> with your API key.

          echo "export OPENAI_API_KEY_U1='yourkey1'" >> ~/.zshrc echo "export OPENAI_API_KEY_U2='yourkey2'" >> ~/.zshrc

        2. Update the shell with the new variable:

          source ~/.zshrc

        3. Confirm that you have set your environment variable using the following command.

          echo $OPENAI_API_KEY_U1 echo $OPENAI_API_KEY_U2

        • Option 2: Set your ‘OPENAI_API_KEY’ Environment Variable using bash: Follow the directions in Option 1, replacing .zshrc with .bash_profile.
    • Windows:

      • Option 1: Set your ‘OPENAI_API_KEY’ Environment Variable via the cmd prompt:

        Run the following in the cmd prompt, replacing <yourkey> with your API key:

        setx OPENAI_API_KEY_U1 "<yourkey1>"

        setx OPENAI_API_KEY_U2 "<yourkey2>"

        This will apply to future cmd prompt windows, so you will need to open a new one to use that variable with Python. You can validate that this variable has been set by opening a new cmd prompt window and typing in.

        echo %OPENAI_API_KEY_U1%

        echo %OPENAI_API_KEY_U2%

      • Option 2: Set your ‘OPENAI_API_KEY’ Environment Variable through the Control Panel:

        1. Open System properties and select Advanced system settings.

        2. Select Environment Variables.

        3. Select New from the User variables section (top). Add your name/key-value pair, replacing <yourkey> with your API key.

          Variable name: OPENAI_API_KEY_U1, Variable value: <yourkey1>

          Variable name: OPENAI_API_KEY_U2, Variable value: <yourkey2>

  4. Follow the same approach above; add HUGGINGFACE_API_KEY to your environment variable. See more details at HuggingFace API.

  5. Set up your Google Cloud Vision following these guides: Google Cloud Vision Setup and Use Client Libraries

  6. If you want to support more writing tasks, please create the task description from OpenAI first, then create {YOUR_TASK_TYPE}.txt file in data/task_description folder. You can also modify the prompt in this folder to improve the experience.

Windows-specific issues

  • Windows defender issue
    • Windows Defender will treat the keyboardListener in App.py as a threat and automatically delete the file
      • To overcome this problem, follow these steps
        1. Press the Windows + I keys and open Settings
        2. Click on Update & Security
        3. Go to Windows Security
        4. Click on Virus & Threat protection
        5. Select Manage Settings
        6. Under Exclusions, click on Add or Remove exclusion
        7. Click on the + sign which says Add an exclusion
        8. Select File, Folder, File Type, or Process

MacOS specific issues

  • pyttsx3 issue
    • If you meet the issue with AttributeError: 'super' object has no attribute 'init' when using the pyttsx3 on macOS
      • Please follow the instruction to add from objc import super at the top of the /path_to_your_venv/pyttsx3/drivers/nsss.py file.

Issue with some Python packages

  1. Fix the code of the image quality analysis.

Manipulation For Travel Blog

Step 1

  • Run sudo -S "/Applications/Pupil Capture.app/Contents/MacOS/pupil_capture" in your terminal to start the Pupil Lab software for macOS.

Step 2

  • Run python main.py

Step 3

  • Set up your device & task, including entering the user_id, selecting task type and output modality, and selecting your source for voice recording.
  • Click "Save" to save the configuration.

Step 4

  • You can use our ring mouse to manipulate the menu. You can use your mouse and keyboard if you use it for desktop settings.
    • To start a new recording, press the arrow_right key on your keyboard or click the right button in the GUI.
    • To get a summarization or generate full writing, press the arrow_up key on your keyboard or click the top button in the GUI.
    • To take a picture, please press the arrow_down key on your keyboard or click the bottom button in the GUI. If you want to make any comments on the picture, after the picture windows show up, you can start a new recording and say your comments following the above instructions.
    • To hide/show the GUI, please click the mouse's left button.
    • You can scroll your mouse wheel up and down the generated writing.
    • To map the ring interaction to the above settings, you can leverage tools, e.g., Karabiner-Elements.

Step 5

If you want to generate a travel blog, please press the right_command key on your keyboard then enter the title in GUI. Then, you can find the exported file in the data folder.

To check your full conversation history with GPT, you can check the history recording in the data/recording/{USER_ID}/chat_history.json folder.

Step 6 (OPTIONAL: DEBUGGING MODE)

If you want to rerun the program and load the previous chat history (with the same PID), press the Esc key on the keyboard.

However, please keep in mind that we cannot promise that it will resume your entire chat history, as OpenAI has limitations on the length of requests.

Step 8 (OPTIONAL: REPLACE AUDIO FEEDBACK SOUND)

In the released code, we leverage the free and native text-to-speech API in macOS. If you use another OS or want a better user experience, we recommend replacing the API with Google's or OpenAI's text-to-speech API.

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