D. Picard

h-index10
2papers

2 Papers

CVFeb 28, 2025Code
How far can we go with ImageNet for Text-to-Image generation?

L. Degeorge, A. Ghosh, N. Dufour et al.

Recent text-to-image (T2I) generation models have achieved remarkable sucess by training on billion-scale datasets, following a `bigger is better' paradigm that prioritizes data quantity over availability (closed vs open source) and reproducibility (data decay vs established collections). We challenge this established paradigm by demonstrating that one can achieve capabilities of models trained on massive web-scraped collections, using only ImageNet enhanced with well-designed text and image augmentations. With this much simpler setup, we achieve a +6% overall score over SD-XL on GenEval and +5% on DPGBench while using just 1/10th the parameters and 1/1000th the training images. We also show that ImageNet pretrained models can be finetuned on task specific datasets (like for high resolution aesthetic applications) with good results, indicating that ImageNet is sufficient for acquiring general capabilities. This opens the way for more reproducible research as ImageNet is widely available and the proposed standardized training setup only requires 500 hours of H100 to train a text-to-image model.

CVSep 4, 2018
Image Reassembly Combining Deep Learning and Shortest Path Problem

M. -M. Paumard, D. Picard, H. Tabia

This paper addresses the problem of reassembling images from disjointed fragments. More specifically, given an unordered set of fragments, we aim at reassembling one or several possibly incomplete images. The main contributions of this work are: 1) several deep neural architectures to predict the relative position of image fragments that outperform the previous state of the art; 2) casting the reassembly problem into the shortest path in a graph problem for which we provide several construction algorithms depending on available information; 3) a new dataset of images taken from the Metropolitan Museum of Art (MET) dedicated to image reassembly for which we provide a clear setup and a strong baseline.