We devise a cascade GAN approach to generate talking face video, which is
robust to different face shapes, view angles, facial characteristics, and noisy
audio conditions. Instead of learning a direct mapping from audio to video
frames, we propose first to transfer audio to high-level structure, i.e., the
facial landmarks, and then to generate video frames conditioned on the
landmarks. Compared to a direct audio-to-image approach, our cascade approach
avoids fitting spurious correlations between audiovisual signals that are
irrelevant to the speech content. We, humans, are sensitive to temporal
discontinuities and subtle artifacts in video. To avoid those pixel jittering
problems and to enforce the network to focus on audiovisual-correlated regions,
we propose a novel dynamically adjustable pixel-wise loss with an attention
mechanism. Furthermore, to generate a sharper image with well-synchronized
facial movements, we propose a novel regression-based discriminator structure,
which considers sequence-level information along with frame-level information.
Thoughtful experiments on several datasets and real-world samples demonstrate
significantly better results obtained by our method than the state-of-the-art
methods in both quantitative and qualitative comparisons.

提出了级联 GAN 方法来生成对话式人脸视频，该方法在不同的人脸形状、视角、面部特征和嘈杂声音条件下具有鲁棒性，通过将音频转换为高级结构，即面部标志点，然后在标志点的条件下生成视频帧，避免了不相关的音频视觉信号之间的假冒关联，利用动态可调整像素级损失和注意机制来解决像素抖动问题，并提出了一种新的基于回归的鉴别器结构来生成更清晰、更同步的面部动作图像，实验结果表明，我们的方法比现有方法在定量和定性比较中取得了显著更好的效果。