Search Results for author: Jasper Uijlings

Found 23 papers, 7 papers with code

HAMMR: HierArchical MultiModal React agents for generic VQA

no code implementations8 Apr 2024 Lluis Castrejon, Thomas Mensink, Howard Zhou, Vittorio Ferrari, Andre Araujo, Jasper Uijlings

We start from a multimodal ReAct-based system and make it hierarchical by enabling our HAMMR agents to call upon other specialized agents.

Optical Character Recognition (OCR) Question Answering +1

Encyclopedic VQA: Visual questions about detailed properties of fine-grained categories

1 code implementation ICCV 2023 Thomas Mensink, Jasper Uijlings, Lluis Castrejon, Arushi Goel, Felipe Cadar, Howard Zhou, Fei Sha, André Araujo, Vittorio Ferrari

Empirically, we show that our dataset poses a hard challenge for large vision+language models as they perform poorly on our dataset: PaLI [14] is state-of-the-art on OK-VQA [37], yet it only achieves 13. 0% accuracy on our dataset.

Question Answering Retrieval +1

The Missing Link: Finding label relations across datasets

no code implementations9 Jun 2022 Jasper Uijlings, Thomas Mensink, Vittorio Ferrari

To find relations between labels across datasets, we propose methods based on language, on vision, and on their combination.

Specificity Transfer Learning

How stable are Transferability Metrics evaluations?

no code implementations4 Apr 2022 Andrea Agostinelli, Michal Pándy, Jasper Uijlings, Thomas Mensink, Vittorio Ferrari

Transferability metrics is a maturing field with increasing interest, which aims at providing heuristics for selecting the most suitable source models to transfer to a given target dataset, without fine-tuning them all.

Image Classification Semantic Segmentation

Transferability Metrics for Selecting Source Model Ensembles

no code implementations CVPR 2022 Andrea Agostinelli, Jasper Uijlings, Thomas Mensink, Vittorio Ferrari

We address the problem of ensemble selection in transfer learning: Given a large pool of source models we want to select an ensemble of models which, after fine-tuning on the target training set, yields the best performance on the target test set.

Semantic Segmentation Transfer Learning

Transferability Estimation using Bhattacharyya Class Separability

no code implementations CVPR 2022 Michal Pándy, Andrea Agostinelli, Jasper Uijlings, Vittorio Ferrari, Thomas Mensink

Then, we estimate their pairwise class separability using the Bhattacharyya coefficient, yielding a simple and effective measure of how well the source model transfers to the target task.

Classification Image Classification +2

Factors of Influence for Transfer Learning across Diverse Appearance Domains and Task Types

no code implementations24 Mar 2021 Thomas Mensink, Jasper Uijlings, Alina Kuznetsova, Michael Gygli, Vittorio Ferrari

Our study leads to several insights and concrete recommendations: (1) for most tasks there exists a source which significantly outperforms ILSVRC'12 pre-training; (2) the image domain is the most important factor for achieving positive transfer; (3) the source dataset should \emph{include} the image domain of the target dataset to achieve best results; (4) at the same time, we observe only small negative effects when the image domain of the source task is much broader than that of the target; (5) transfer across task types can be beneficial, but its success is heavily dependent on both the source and target task types.

Autonomous Driving Depth Estimation +6

Continuous Adaptation for Interactive Object Segmentation by Learning from Corrections

no code implementations ECCV 2020 Theodora Kontogianni, Michael Gygli, Jasper Uijlings, Vittorio Ferrari

Our approach enables the adaptation to a particular object and its background, to distributions shifts in a test set, to specific object classes, and even to large domain changes, where the imaging modality changes between training and testing.

Interactive Segmentation Object +1

Learning Intelligent Dialogs for Bounding Box Annotation

1 code implementation CVPR 2018 Ksenia Konyushkova, Jasper Uijlings, Christoph Lampert, Vittorio Ferrari

We demonstrate that (1) our agents are able to learn efficient annotation strategies in several scenarios, automatically adapting to the image difficulty, the desired quality of the boxes, and the detector strength; (2) in all scenarios the resulting annotation dialogs speed up annotation compared to manual box drawing alone and box verification alone, while also outperforming any fixed combination of verification and drawing in most scenarios; (3) in a realistic scenario where the detector is iteratively re-trained, our agents evolve a series of strategies that reflect the shifting trade-off between verification and drawing as the detector grows stronger.

Revisiting knowledge transfer for training object class detectors

no code implementations CVPR 2018 Jasper Uijlings, Stefan Popov, Vittorio Ferrari

We propose to revisit knowledge transfer for training object detectors on target classes from weakly supervised training images, helped by a set of source classes with bounding-box annotations.

Object Transfer Learning

The Devil is in the Decoder: Classification, Regression and GANs

1 code implementation18 Jul 2017 Zbigniew Wojna, Vittorio Ferrari, Sergio Guadarrama, Nathan Silberman, Liang-Chieh Chen, Alireza Fathi, Jasper Uijlings

Many machine vision applications, such as semantic segmentation and depth prediction, require predictions for every pixel of the input image.

Boundary Detection Depth Estimation +4

COCO-Stuff: Thing and Stuff Classes in Context

10 code implementations CVPR 2018 Holger Caesar, Jasper Uijlings, Vittorio Ferrari

To understand stuff and things in context we introduce COCO-Stuff, which augments all 164K images of the COCO 2017 dataset with pixel-wise annotations for 91 stuff classes.

Image Captioning Semantic Segmentation +1

Region-based semantic segmentation with end-to-end training

1 code implementation26 Jul 2016 Holger Caesar, Jasper Uijlings, Vittorio Ferrari

We propose a novel method for semantic segmentation, the task of labeling each pixel in an image with a semantic class.

Segmentation Semantic Segmentation

Learning to Group Objects

no code implementations CVPR 2014 Victoria Yanulevskaya, Jasper Uijlings, Nicu Sebe

It has been shown that such object regions can be used to focus computer vision techniques on the parts of an image that matter most leading to significant improvements in both object localisation and semantic segmentation in recent years.

Object Semantic Segmentation

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