论文标题
ANR:虚拟化身的铰接神经渲染
ANR: Articulated Neural Rendering for Virtual Avatars
论文作者
论文摘要
在递延神经渲染(DNR)中,传统渲染与神经网络的结合在计算复杂性与所得图像的现实主义之间具有令人信服的平衡。使用皮肤的网格呈现铰接物体是DNR框架的自然扩展,并将其打开到大量应用。但是,在这种情况下,神经阴影步骤必须解释可能未在网格中捕获的变形,以及对齐不准确和动态的变形,这可能会混淆DNR管道。我们提出了铰接式神经渲染(ANR),这是一个基于DNR的新型框架,该框架明确解决了其对虚拟人类化身的局限性。我们不仅在DNR方面表明了ANR的优势,而且还使用专门用于化身创作和动画的方法。在两项用户研究中,我们观察到对我们的头像模型的明显偏好,并证明了定量评估指标的最新性能。从感知上讲,我们观察到更好的时间稳定性,细节水平和合理性。
The combination of traditional rendering with neural networks in Deferred Neural Rendering (DNR) provides a compelling balance between computational complexity and realism of the resulting images. Using skinned meshes for rendering articulating objects is a natural extension for the DNR framework and would open it up to a plethora of applications. However, in this case the neural shading step must account for deformations that are possibly not captured in the mesh, as well as alignment inaccuracies and dynamics -- which can confound the DNR pipeline. We present Articulated Neural Rendering (ANR), a novel framework based on DNR which explicitly addresses its limitations for virtual human avatars. We show the superiority of ANR not only with respect to DNR but also with methods specialized for avatar creation and animation. In two user studies, we observe a clear preference for our avatar model and we demonstrate state-of-the-art performance on quantitative evaluation metrics. Perceptually, we observe better temporal stability, level of detail and plausibility.