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169,291 papers · 148 categories

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48 results for Video Representation Learning

Method learns from video demonstrations with human feedback.

problem Teaching autonomous agents using video demonstrations and human feedback.
method Constructs a mapping between standard and visual representations using a neural network.
result Effective in teaching a hopper agent to perform a backflip with minimal human feedback.

Paper improves video feature learning for better downstream tasks.

problem Improving video feature learning for better performance on downstream tasks.
method Self-supervised learning approach using contrastive bidirectional transformer, extending BERT for real-valued feature vectors.
result Significantly improved performance on video classification, captioning, and segmentation tasks.

SummaryNet automates video summarisation using deep learning.

problem Creating informative video summaries from videos.
method Two-stream convolutional network for spatial and temporal features, encoder-decoder model for salient features, sigmoid regression with LSTM for frame probability.
result SummaryNet achieves comparable or better results than state-of-the-art methods on benchmark datasets.

We identify action representations from video data, proving their statistical benefits.

problem Identifying latent action policies from video data.
method Entropy-regularized LAPO objective, formalizing desiderata for action representations.
result Entropy-regularized LAPO identifies action representations satisfying desiderata under suitable conditions.

Generative model learns compact codes for video recovery.

problem Efficiently represent and reconstruct videos from missing data.
method Generative network trained to map compact latent codes to images, with low-rank and similarity constraints.
result Can recover true video sequences even if not in pretrained network's range.

New method compresses facial videos using GANs and latent space optimization.

problem Efficiently compressing facial videos at low bit rates.
method Leverages StyleGAN for latent space representation and compression, learns optimal compression through entropy model and perceptual loss.
result Significantly reduces perceptual distortion at low bit rates compared to state-of-the-art codecs.

Improved video and movie description using multitask learning.

problem Lack of training data and poor generalization in video captioning.
method Multitask learning encoder-decoder framework for video sequences.
result Improved performance on multi-caption and single-caption datasets.

New method learns robot actions from videos without explicit labels.

problem Training robots to perform tasks from few demonstrations.
method Uses images and text for task-agnostic and general representation, synthesizes hallucinated actions, and applies dense correspondences.
result Trains robot policies solely from RGB videos, achieving diverse tasks across different robots and environments.

Spectral Inference Networks learn eigenfunctions from data using optimization.

problem Learning eigenfunctions of linear operators from data.
method Spectral Inference Networks generalize Slow Feature Analysis to generic symmetric operators and use stochastic optimization.
result Spectral Inference Networks accurately recover eigenfunctions and discover interpretable representations from video data.

New model learns human actions from video data without labels.

problem Learning human actions from unlabeled video data.
method Clustering-aware structure-constrained low-rank representation (CS-LRR) model integrating spectral clustering and hierarchical subspace clustering.
result Efficiently learns human action attributes from video data without requiring labeled data.

CB-GLNs learn video data's complex dependencies via graph representation.

problem Capturing complex dependency structures in sequential data like videos.
method Represent video data as a graph, find compositional dependencies via graph-cut and message passing.
result CB-GLNs efficiently learn video data's semantic compositional structure.

Paper presents unsupervised learning for visual representations using patches from unlabelled videos.

problem Learning visual representations without labeled data.
method Trains a model for foreground and background classification using patches extracted from unlabelled videos.
result Model achieves 45.3 mAP, close to best unsupervised learning techniques.

This work predicts and interpolates long-range videos using unsupervised landmarks.

problem Predicting and interpolating long-range video data with occlusions and appearance changes.
method Unsupervised latent structure inference followed by temporal prediction in a latent space.
result High-quality long-range video interpolation and extrapolation achieved through landmark representation.

TCT learns multimodal sequence representations by translating from related sequences.

problem Challenges in learning semantic representations from multimodalities.
method Transformer based Cross-modal Translator (TCT) combined with Multimodal Transformer Network (MTN).
result Proposed method achieves new state-of-the-art performance on video-grounded dialogue.

Recent progress in using recurrent neural networks (RNNs) for image description has motivated the exploration of their application for video description. However, while images are static, working with videos requires modeling their dynamic temporal structure and then properly integrating that information into a natural…

2015-02-27abs ↗pdf ↗

PredNet fails to fully adhere to predictive coding principles.

problem Evaluation of PredNet's adherence to predictive coding theory.
method Critical analysis of PredNet's architecture and performance on a video action classification dataset.
result PredNet does not fully follow predictive coding principles but shows potential with top-down conditioning.

A new model disentangles object recognition and dynamics from video data.

problem Temporal reasoning in dynamically changing video data.
method Kalman variational auto-encoder framework for unsupervised learning.
result Model disentangles object representation and dynamics, outperforming other methods.

Introduces Motion Programs for better video analysis of human motion.

problem Current video analysis focuses on raw pixels or keypoints, missing higher-level motion primitives.
method Introduces Motion Programs as a neuro-symbolic representation of motions as a composition of high-level primitives.
result Motion Programs accurately describe diverse human motions and improve downstream tasks.

Polynomial fusion layer improves speech-driven facial animation.

problem Recent facial synthesis relies on low-dimensional representations and concatenation, ignoring higher-order interactions.
method Proposes a polynomial fusion layer to model higher-order interactions of facial encodings.
result Demonstrates improved video quality, audiovisual synchronisation, and blink generation.

Ground-A-Video edits videos without training, preserving intended changes.

problem Complex multi-attribute video editing with omitted or wrong changes.
method Grounding-guided video-to-video translation with Cross-Frame Gated Attention.
result Zero-shot multi-attribute video editing with improved accuracy and frame consistency.

A deep historical LSTM model improves tennis shot recognition from RGB videos.

problem Improving action recognition from RGB video input for sports analysis.
method Convolutional Neural Network (CNN) and Weighted Long Short-Term Memory (LSTM) for 3D tennis shot recognition.
result The method achieves better performance than state-of-the-art baselines for tennis shot recognition.

DDPAE predicts video frames by decomposing and disentangling high-dimensional video data.

problem Predicting future video frames from input sequences is challenging due to high-dimensionality.
method Combines structured probabilistic models and deep networks to decompose and disentangle video components.
result DDPAE learns latent decomposition and disentanglement without supervision.

Proposes a new VAE model with hierarchical nonparametric priors for better data representation.

problem Limited flexibility of standard VAE latent representations.
method Combines tree-structured Bayesian nonparametric priors with VAEs for joint learning of neural parameters and priors.
result Discover highly interpretable activity hierarchies and improved clustering accuracy.

A framework disentangles controllable objects from visual signals for improved RL.

problem Improving sample efficiency and game performance in vision-based RL.
method Action-conditioned video prediction to disentangle controllable objects.
result Improved sample efficiency and game performance in Atari games.

Paper proposes SMFN for high-res spherical video super-resolution.

problem Super-resolution of 360-degree panoramic videos is expensive and challenging.
method Deformable convolutions, mixed attention mechanism, dual learning strategy, weighted mean square error loss function.
result The proposed SMFN method improves super-resolution of equatorial regions in 360-degree videos.

Self-supervised learning helps train deep features without needing lots of labeled data.

problem Annotation bottleneck in deep learning.
method Four main families of self-supervised approaches applied to various data modalities.
result Self-supervised methods can now rival fully supervised pre-training across multiple data types.

The paper tackles video prediction by estimating conditional densities implicitly.

problem Temporal prediction uncertainty and high-dimensional probabilistic inference in natural scenes.
method Score-based conditional density estimation using sequence-to-image networks trained on a resilience-to-noise objective.
result The method handles occlusion boundaries and weights predictive evidence by reliability.

Understanding how images of objects and scenes behave in response to specific ego-motions is a crucial aspect of proper visual development, yet existing visual learning methods are conspicuously disconnected from the physical source of their images. We propose to exploit proprioceptive motor signals to provide unsuperv…

2015-05-08abs ↗pdf ↗