人脸追踪 FaceTrace

代码说明：

应用背景 人脸识别 人脸追踪 The software is provided under the terms of this licence stricly for //       academic, non-commercial, not-for-profit purposes. //     * Redistributions of source code must retain the above copyright notice,  //       this list of conditions (licence) and the following disclaimer. //     * Redistributions in binary form must reproduce the above copyright  //       notice, this list of conditions (licence) and the following disclaimer  //       in the documentation and/or other materials provided with the  //       distribution. //     * The name of the author may not be used to endorse or promote products  //       derived from this software without specific prior written permission. //     * As this software d