A Variational Autoencoder (VAE) is an extension of the traditional autoencoder that incorporates probabilistic modeling. VAEs aim to generate new data points by learning the underlying probability distribution of the input data. Unlike a standard autoencoder, which produces a deterministic encoding, a VAE produces a probabilistic encoding. This probabilistic encoding allows for sampling different points in the latent space, enabling the generation of diverse and realistic data samples.

Posts

Video Generation From Text

/in /by

Generating videos from text has proven to be a significant challenge for existing generative models. We tackle this problem by training a conditional generative model to extract both static and dynamic information from text. This is manifested in a hybrid framework, employing a Variational Autoencoder (VAE) and a Generative Adversarial Network (GAN). The static features, called “gist,” are used to sketch text-conditioned background color and object layout structure. Dynamic features are considered by transforming input text into an image filter. To obtain a large amount of data for training the deep-learning model, we develop a method to automatically create a matched text-video corpus from publicly available online videos. Experimental results show that the proposed framework generates plausible and diverse short-duration smooth videos, while accurately reflecting the input text information. It significantly outperforms baseline models that directly adapt text-to-image generation procedures to produce videos. Performance is evaluated both visually and by adapting the inception score used to evaluate image generation in GANs.

Read more