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人 脸对齐技术

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人 脸对齐技术. xueminzhao@tencent.com 4/3/2014. detect => align => represent => classify 9-layer deep NN 120 million parameters 4 million images, 4000 identities 97.25%. 大纲. 什么是人脸对齐? 人 脸对齐的应用 - 人脸识别、表情识别、人脸动画、人脸姿态估计、视线跟踪、嘴唇跟踪、 人脸高分辨率重建、疲劳检测、人机交互、特效 ( 比如 ” 换脸 ” 、 Morphing) 等 人 脸对齐技术及其数学原理

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slide1

人脸对齐技术

xueminzhao@tencent.com

4/3/2014

slide2

detect => align => represent => classify

9-layer deep NN

120 million parameters

4 million images, 4000 identities

97.25%

slide3
大纲
  • 什么是人脸对齐?
  • 人脸对齐的应用

- 人脸识别、表情识别、人脸动画、人脸姿态估计、视线跟踪、嘴唇跟踪、 人脸高分辨率重建、疲劳检测、人机交互、特效(比如”换脸”、Morphing)等

  • 人脸对齐技术及其数学原理

- Active Contour Models (Snakes)

- Active Shape Models

- Active Appearance Models (2D、3D…)

slide4
大纲
  • 什么是人脸对齐?
  • 人脸对齐的应用

- 人脸识别、表情识别、人脸动画、人脸姿态估计、视线跟踪、嘴唇跟踪、 人脸高分辨率重建、疲劳检测、人机交互、特效(比如”换脸”、Morphing)等

  • 人脸对齐技术及其数学原理

- Active Contour Models (Snakes)

- Active Shape Models

- Active Appearance Models (2D、3D…)

slide9
大纲
  • 什么是人脸对齐?
  • 人脸对齐的应用

- 人脸识别、表情识别、人脸动画、人脸姿态估计、视线跟踪、嘴唇跟踪、 人脸高分辨率重建、疲劳检测、人机交互、特效(比如”换脸”、Morphing)等

  • 人脸对齐技术及其数学原理

- Active Contour Models (Snakes)

- Active Shape Models

- Active Appearance Models (2D、3D…)

slide10
人脸对齐的应用
  • 具体见Demos
slide11
大纲
  • 什么是人脸对齐?
  • 人脸对齐的应用

- 人脸识别、表情识别、人脸动画、人脸姿态估计、视线跟踪、嘴唇跟踪、 人脸高分辨率重建、疲劳检测、人机交互、特效(比如”换脸”、Morphing)等

  • 人脸对齐技术及其数学原理

- Active Contour Models (Snakes)

- Active Shape Models

- Active Appearance Models (2D、3D…)

acm snakes1
ACM (Snakes)
  • 对形状没有太多约束;
  • 没有使用纹理信息。
  • 人脸形状大致固定;
  • 人脸器官以及人脸形状边缘有明显的纹理变化。
slide29
ASM
  • 有2D形状模型;
  • 少量的纹理信息。
  • 怎样使用整个人脸区域内部的纹理?
slide30

PCA

Building Active Appearance Models

Warped

PCA

RI, CMU

aam 2d
AAM (2D)
  • 有2D形状模型;
  • 使用了整个人脸区域的纹理信息。
  • 3D人脸形状成像时有约束。
fitting with 3d shape constraints
Fitting with 3D Shape Constraints

AAM

K→ +∞

Parameters:

3D Shape

Constraints

slide37
小结
  • 什么是人脸对齐?
  • 人脸对齐的应用

- 人脸识别、表情识别、人脸动画、人脸姿态估计、视线跟踪、嘴唇跟踪、 人脸高分辨率重建、疲劳检测、人机交互、特效(比如”换脸”、Morphing)等

  • 人脸对齐技术及其数学原理

- Active Contour Models (Snakes)

- Active Shape Models

- Active Appearance Models (2D、3D…)