Jan Eric Lenssen
@janericlenssen
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Group Leader @ MPI for Informatics, teaching machine learning models to perceive the world. Also Founding Engineer @ https://t.co/2JjIl0D23E.
Joined April 2019
๐ Excited to share our new work RefAM: Attention Magnets for Zero-Shot Referral Segmentation, a training-free approach that turns diffusion model attentions into segmentations. By @anna_kukleva_, me, Alessio Tonioni, @ferjadnaeem, @fedassa, @janericlenssen, Bernt Schiele
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Need to scale up any vision feature (e.g. DINOv3) to any resolution without retraining? Make sure to check out AnyUp, @wimmer_th's new work!
Super excited to introduce โจ AnyUp: Universal Feature Upsampling ๐ Upsample any feature - really any feature - with the same upsampler, no need for cumbersome retraining. SOTA feature upsampling results while being feature-agnostic at inference time.
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We donโt have the answers but give you a tool to test them. We welcome feedback and contributions!
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SRM results show thereโs no single best setup for every dataset or task: *ย ย Which noise schedule, parameterization, or diffusion formulation works best? *ย ย DiT, UNet, U-ViT, or something custom? *ย ย Train from scratch or fine-tune? *ย ย How much to sequentialize and which order?
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Just define the variables โ elements of a sample that share the same noise level โ and the package does the rest. Below are examples for image patches and video frames as variables.
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Spatial Reasoners allow to bring (soft) autoregressive diffusion/flow models to a wider range of domains โ aiming to facilitate research on denoising models for reasoning and generation tasks over multiple variables.
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Poster: #CodeML Workshop ยท West Meeting Room 211-214 ยท 2:15 pm on Friday Webpage: https://t.co/l3kdQ5h2kF Github: https://t.co/n6TMwXVOFk Paper:
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You can bring our Sudoku solving diffusion models to other domains! If you are at interested and at #ICML2025, come see @bartek_pog and @ChrisWewer's ๐ Spatial Reasoners package โ now released in beta! Here are some examples for images and videos. Links below.
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@ChrisWewer @bartek_pog PS: ๐We recently released spatial-reasoners, a general toolkit to apply SRMs to a wide range of different domains:
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@ChrisWewer @bartek_pog We find that model hallucination can be drastically reduced by choosing the right configuration, allowing to significantly increase performance in complex reasoning tasks like solving visual Sudoku.
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@ChrisWewer @bartek_pog Our Spatial Reasoning Models allow to explore the space between parallel and autoregressive diffusion models with different methods for choosing generation order. Project Website:
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Can diffusion models solve visual Sudoku? If you are at #ICML2025, come to our poster in the Wednesday morning poster session (Poster Session 3 East, Poster 3412) and find out! @ChrisWewer @bartek_pog Bernt Schiele @janericlenssen
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๐ขIs your multi-view generation (MVG) model 3D consistent? Do they produce high-quality and semantically correct novel views? How to fairly compare and make them even better? Introducing MVGBench: a comprehensive benchmark for MVGs, accepted to #ICCV25 @ICCVConference
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MET3R quantitatively measures 3D consistency between two images via DUSt3R reconstruction and feature comparison. It does not require camera poses. Code is available for plug-and-play use. We also provide an open source multi-view latent diffusion model for further research!
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At #CVPR2025 and working on consistency in video and multi-view generative models? Come and visit our poster on Friday afternoon, where I present ๐ ๐๐๐ฏ๐ฅ: ๐ ๐ฒ๐ฎ๐๐๐ฟ๐ถ๐ป๐ด ๐ ๐๐น๐๐ถ-๐ฉ๐ถ๐ฒ๐ ๐๐ผ๐ป๐๐ถ๐๐๐ฒ๐ป๐ฐ๐ ๐ถ๐ป ๐๐ฒ๐ป๐ฒ๐ฟ๐ฎ๐๐ฒ๐ฑ ๐๐บ๐ฎ๐ด๐ฒ๐
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Introducing KumoRFM โ the worldโs first Relational Foundation Model for enterprise data. Instantly generate accurate predictions like churn, fraud, and recommendations from raw data, with zero-shot predictions and 20x faster results. Try KumoRFM today: https://t.co/h2r8UdtZkk
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@ChrisWewer @bartek_pog We also show that good orders can be predicted by uncertainty, which is crucial for the Sudoku task to be solved well.
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@ChrisWewer @bartek_pog It allows to explore the amount of (soft) sequentialization and the order of generation, both having significant impact on reasoning quality.
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@ChrisWewer @bartek_pog Spatial Reasoning Models (SRMs) are a framework to propagate belief over a set of continuous variables (e.g. image patches) with generative denoising models.
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