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funny radar gif

Automatic target recognition of Space Invaders

Maintainability

This is my realization for test task "SPACE INVADERS". You can read full description for this task in the file TASK.md.

Requirements:

  • Ruby/Rails versions

    • ruby ~> '2.5.1'
    • rails ~> '5.2.1'

  • System dependencies

    • postgresql 9.6

Install

  • git clone [email protected]:FlintOFF/space_invaders.git
  • cd space_invaders
  • rm config/credentials.yml.enc
  • EDITOR=nano rails credentials:edit
  • cp config/database.yml.sample config/database.yml
  • nano config/database.yml
  • ./bin/setup
  • rake tasks:handle
  • rails s

Deploy to Heroku

git push heroku master
heroku config:set RAILS_MASTER_KEY=<your-master-key-here>
heroku run rake db:setup

Test:

  • For run all tests rails test
  • For test manually over CLI on heroku:
    • generate token curl -d '{"email": "[email protected]", "password": "super_password"}' -H "Content-Type: application/json" -X POST https://space-invaders-atr.herokuapp.com/api/tokens
    • get task result curl -H "Authorization: Bearer <token>" -H "Content-Type: application/json" https://space-invaders-atr.herokuapp.com/api/tasks/1 as result you will see positions of the targets from test task.
  • Through Swagger UI by link

About

This project contains next models:

  • Radar - contains information about radar system, like: frame_height, frame_width, frame_symbols;
  • Target - for each radar system, we need to create they own targets. You can specify next parameters: title, description, frame, kind (enemy or friend);
  • Task - for recognition the targets on radar frame you need create the task. Task contain next information: radar_id, frame, results, status;
  • User - contain information about the user and his role;

For authorization I use JWT. First, you need to generate JWT over endpoint '/api/tokens'. After, you need send your token over the header for each request. For example "Authorization: Bearer ".

All recognition logic was removed from path app/commands/detect_target_command.rb and placed to GEM BinaryImageToolset.

Please take a look on the integration test test/integration/api/task_flow_test.rb. It works with data from the test task and contains the results for it.

To do:

  • Visualize results on image;
  • Filtering the noise over 'median filter';
  • Return unknown targets;
  • Realize async work (background jobs + callback url);
  • Think about upload radar frame through a file or single string;
  • Move recognition logic to GEM;

Issues:

  • Swagger do not support JWT