https://qooah.com/2013/11/04/google-nexus-5-best-panorama-camera-android-4-4-%e6%8f%90%e5%8d%87%e5%85%a8%e6%99%af%e6%8b%8d%e6%94%9d%e5%8a%9f%e8%83%bd/