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    基于人体骨架的行为识别【附PPT与视频资料】

    基于人体骨架的行为识别是一个重要而且具有挑战性的计算机视觉任务。人体图像视频不仅包含了复杂的背景,还有光照变化、人体外貌变化等不确定因素,这使得基于图像视频的行为识别具有一定的局限性。相比图像视频,人体骨架视频可以很好地克服这些不确定因素的影响,所以基于人体骨架的行为识别受到越来越多的关注。人体骨架序列不仅包含了时序特征,而且还包含了人体的空间结构特征,如何有效地从人体骨架序列中提取具有判别性的空间和时间特征是一个有待解决的问题。我们提出了Skeleton-Based Action Recognition with Spatial Reasoning and Temporal Stack Learning,并发表在ECCV18上。

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    Temporal GAN with Singular Value Clipping for 语义视频

    In this paper, we propose a generative model, Temporal Generative Adversarial Nets (TGAN), which can learn a semantic representation of unlabeled videos, and is capable of generating videos. Unlike existing Generative Adversarial Nets (GAN)-based methods that generate videos with a single generator consisting of 3D deconvolutional layers, our model exploits two different types of generators: a temporal generator and an image generator. The temporal generator takes a single latent variable as input and outputs a set of latent variables, each of which corresponds to an image frame in a video. The image generator transforms a set of such latent variables into a video. To deal with instability in training of GAN with such advanced networks, we adopt a recently proposed model, Wasserstein GAN, and propose a novel method to train it stably in an end-to-end manner. The experimental results demonstrate the effectiveness of our methods.

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