/libfacedetection

A binary library for face detection in images. You can use it free of charge with any purpose.

Primary LanguageC++OtherNOASSERTION

libfacedetection

This is a binary library for face detection in images. The 32-bit and 64-bit dll files are provided. To achieve better performance, the 64-bit dll is recommended.

examples/libfacedetect-example.cpp shows how to use the library.

Comparison on Windows

Method Time(Win32) FPS(Win32) Time(X64) FPS(X64) Misc
frontal 2.92ms 342.5 2.41ms 414.9 Yaw angle: -60 to 60 degrees
frontal-surveillance 3.83ms 261.1 3.37ms 269.7 Yaw angle: -70 to 70 degrees
multiview 7.12ms 140.4 5.81ms 172.1 Yaw angle: -90 to 90 degrees
multiview_reinforce 10.95ms 91.3 9.15ms 109.3 Yaw angle: -90 to 90 degrees
  • 640x480 image size (VGA), scale=1.2, minimal window size = 48
  • Intel(R) Core(TM) i7-4770 CPU @ 3.4GHz
  • Only one CPU core is utilized. Multi-core parallelization is disabled for these four methods.

Comparison on ARM

Method Time FPS Misc
frontal 12.5ms 80.0 Yaw angle: -60 to 60 degrees
frontal-surveillance 15.7ms 63.7 Yaw angle: -70 to 70 degrees
multiview 27.8ms 36.0 Yaw angle: -90 to 90 degrees
multiview_reinforce 38.4ms 26.0 Yaw angle: -90 to 90 degrees
  • 640x480 image size (VGA), scale=1.2, minimal window size = 48
  • NVIDIA TK1 "4-Plus-1" 2.32GHz ARM quad-core Cortex-A15 CPU
  • Multi-core parallelization is disabled.
  • C programming language, and no SIMD instruction is used.

The dll cannot run on ARM. The library should be recompiled from source code for ARM compatibility. If you need the source code, a commercial license is needed.

Evaluation

FDDB: http://vis-www.cs.umass.edu/fddb/index.html

Evaluation on FDDB

  • scale=1.08
  • minimal window size = 16
  • the heights of the face rectangles are scaled to 1.2 to fit the ground truth data in FDDB.

Tip

  • Do NOT use the functions in multiple threads. The memory used in the functions is not protected according to multiple threads.

Author

Contributors

  • Shengyin Wu, Shenzhen University, China
  • Dong Xu, Shenzhen University, China