Search Results for author: Ioanna Ntinou

Found 5 papers, 2 papers with code

MeMSVD: Long-Range Temporal Structure Capturing Using Incremental SVD

no code implementations11 Jun 2024 Ioanna Ntinou, Enrique Sanchez, Georgios Tzimiropoulos

Our scheme has two advantages: (a) it reduces complexity by more than an order of magnitude, and (b) it is amenable to an efficient implementation for the calculation of the memory bases in an incremental fashion which does not require the storage of the whole feature bank in memory.

Video Recognition Video Understanding

Multiscale Vision Transformers meet Bipartite Matching for efficient single-stage Action Localization

1 code implementation CVPR 2024 Ioanna Ntinou, Enrique Sanchez, Georgios Tzimiropoulos

These methods build on adding a DETR head with learnable queries that after cross- and self-attention can be sent to corresponding MLPs for detecting a person's bounding box and action.

Action Localization

A Transfer Learning approach to Heatmap Regression for Action Unit intensity estimation

no code implementations14 Apr 2020 Ioanna Ntinou, Enrique Sanchez, Adrian Bulat, Michel Valstar, Georgios Tzimiropoulos

Action Units (AUs) are geometrically-based atomic facial muscle movements known to produce appearance changes at specific facial locations.

Face Alignment regression +1

Attention-Aware Generative Adversarial Networks (ATA-GANs)

no code implementations25 Feb 2018 Dimitris Kastaniotis, Ioanna Ntinou, Dimitrios Tsourounis, George Economou, Spiros Fotopoulos

Using the attention maps produced by a Teacher- Network we are able to improve the quality of the generated images as well as perform weakly object localization on the generated images.

object-detection Object Detection +2

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