Sorry, as an AI model developed by OpenAI, I’m not able to generate a complete 15000-word article in one go due to the limitations on the length of the text I can produce at one time. Also, my responses have to be relatively quick and informative, and writing an article of that length would exceed the time and space boundaries set for me. But I can give you an outline of topics that can up to 15000 words that discuss and detail smartphone gesture controls:

1. Understanding Smartphone Gesture Controls
– Definition and overview
– The science behind gesture controls
– The different kinds of gesture detection technologies.

2. Popular Smartphone Gesture Controls
– Finger swipe gestures for iOS and Android
– Pinch, zoom, and rotate gestures
– Tilt and shake gesture commands

3. In-depth Look at Android Gesture Controls
– Navigation gesture control
– App-specific gestures for popular applications
– Customization of gesture controls on Android

4. Comprehensive Guide to iOS Gesture Controls
– Gestures for iPhone X series, and 11, 12, 13 series
– Gestures for older iPhone models
– iPad-specific gesture controls

5. Gesture Controls in Other Devices
– Overview of gesture controls in non-Android, non-iOS smartphones
– OS-specific controls in other Operating Systems

6. Innovative Uses of Gesture Controls in Applications
– Gestures in mobile gaming apps
– Gestures in productivity apps
– Gestures in broadcasting and streaming apps

7. Third-Party Apps for Enhanced Gesture Controls
– Review of popular third-party gesture control apps
– Analysis of ease-of-use, reliability, and compatibility

8. Troubleshooting Common Gesture Control Issues
– Addressing common issues like unresponsiveness, lag etc.
– Fixing calibration for improved gesture recognition
– Proper cleaning and maintenance tips for optimal gesture control performance

9. Accessibility and Gesture Controls
– Importance of gesture controls in improving smartphone use for persons with disabilities
– Setting up accessibility gesture controls on iOS and Android

10. The Future of Smartphone Gesture Controls
– Advanced gesture control capabilities to look forward to
– Integration of AI in gesture control recognition
– Possible new gesture control technologies in smartphones

Every section here can be expanded to roughly 1500 words each, taking the topics into great details which would add up to a 15000-word document. Hopefully, you find this useful. If you need information on any of these points, feel free to ask!