Assistant Professor @ Tel-Aviv University

Joined May 2019
23 Photos and videos
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๐ŸŽ‰ Excited to introduce TRON, a relighting framework for 3D captures. ๐Ÿ’กTRON pairs a neural renderer with 3D Gaussian reconstructions, achieving realistic quality, with 3D, material, & lighting control at interactive frame rates. arxiv.org/abs/2606.11314 research.nvidia.com/labs/silโ€ฆ
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Reference-conditioned diffusion models rely on dense reference token grids. Are they really necessary? Surprisingly, dropping 80โ€“90% of the reference tokens barely affects quality. A little fine-tuning is enough to recover nearly the same quality at a fraction of the cost.
๐ŸŒŸ๐Ÿš€ Excited to share our latest work: "Keep The Essentials: Efficient Reference Conditioned Generation via Token Dropping"! TL;DR: Stop wasting compute on redundant tokens! We introduce SparseContext that drops reference tokens for speeding up reference-based image generationโšก
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๐ŸŽฌ๐ŸŽจ LTX-2.3-Sync-LoRA, dataset and weights are out! check it out yourself :) sagipolaczek.github.io/Sync-โ€ฆ
FUN to share that Sync-LoRA has been accepted to #ECCV2026! ๐Ÿค—โœจ๐ŸŽฌ the field moves fast, but the core seems to remain: 1๏ธโƒฃ IC-LoRA enables diverse edits 2๏ธโƒฃ high-quality data is key (even if it's a small amount!) Huge thanks to @arash_mham @OPatashnik @DanielCohenOr1
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๐ŸŒŸ๐Ÿš€ Excited to share our latest work: "Keep The Essentials: Efficient Reference Conditioned Generation via Token Dropping"! TL;DR: Stop wasting compute on redundant tokens! We introduce SparseContext that drops reference tokens for speeding up reference-based image generationโšก
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Generating images with AI is fun ๐Ÿค“ Finding the image? Not so muchโ€ฆ The first result is rarely the one. Or the second. Or the third. ๐Ÿฅต So we built a way to generate diverse possibilities along meaningful semantic axes ๐Ÿงญ and organize them into a gallery you can effortlessly browse ๐Ÿงš๐Ÿป Introducing our #ECCV2026 paper: Semantic Browsing: Controllable Diversity for Image Generation โœจ 1/5
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We find a shortcut in training reference-conditioned audio flow matching: at low noise levels, the model assigns speakers based on acoustic similarity rather than text. Biasing timestep sampling toward higher noise removes this shortcut and restores text-driven speaker assignment
1/7 New paper ๐Ÿงต ScenA generates a multi-speaker audio scene: overlapping speech, laughter, real room noise, from a text description and a few reference voices. When trained in the obvious way, it ignores the text and decides who speaks on its own. We found out why and fixed it.
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Conditional diffusion/flow models often produce outputs inconsistent with the very signal conditioning them. The error is easily measurable, yet models are never trained to act on it. In FlowBender (now on arXiv), we train the model to correct its own errors. ๐Ÿงต
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1/7 New paper ๐Ÿงต ScenA generates a multi-speaker audio scene: overlapping speech, laughter, real room noise, from a text description and a few reference voices. When trained in the obvious way, it ignores the text and decides who speaks on its own. We found out why and fixed it.
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Technical Workshop: 'AI for Creative Visual Content Generation, Editing and Understanding' at SIGGRAPH 2026 marks the 10th installment of the CVEU workshop series at the intersection of generative AI and visual arts. Building on prior editions across SIGGRAPH, CVPR, ICCV, and ECCV, the workshop explores how generative models continue to evolve for creative workflows. This year focuses on a next-generation creatorโ€“machine co-learning paradigm, where AI becomes a collaborative partner that bridges artistic intent and physical realism. s2026.conference-schedule.orโ€ฆ photo by David Weng ยฉ 2025 ACM SIGGRAPH
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Thrilled to share that our paper "SAEdit: Token-level control for continuous image editing via Sparse AutoEncoder" has been accepted to #ECCV2026! ๐Ÿฅณ We use sparse autoencoders to find fine-grained editing directions, enabling controlled & precise image edits.
AutoEncoders normally have narrow bottlenecks, Sparse AutoEncoders (SAE) have large ones! SAEdit leverages that to learn a high-dimensional, disentangled sprase space, where linear moves on text embeddings translate into fine-grained, visual edits ronen94.github.io/SAEdit/ 1/5
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FUN to share that Sync-LoRA has been accepted to #ECCV2026! ๐Ÿค—โœจ๐ŸŽฌ the field moves fast, but the core seems to remain: 1๏ธโƒฃ IC-LoRA enables diverse edits 2๏ธโƒฃ high-quality data is key (even if it's a small amount!) Huge thanks to @arash_mham @OPatashnik @DanielCohenOr1
[1/4] Sync about itโ€ฆ ๐Ÿ’ญโœจ Editing a portrait video yet keeping it fully synced with the original across the entire sequence. Read more about Sync-LoRA: sagipolaczek.github.io/Sync-โ€ฆ ๐Ÿš€
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ื™ืฉืจืืœื™ื ื‘ื—ื•ืดืœ โ€” ื‘ืกื•ืฃ ืื•ืงื˜ื•ื‘ืจ ื™ืชืงื™ื™ืžื• ื‘ื™ืฉืจืืœ ืขืฉืจื•ืช ื›ื ืกื™ื ืืงื“ืžื™ื™ื. ื”ืžื•ืขื“ ื”ืžื“ื•ื™ืง (ื›ื›ื”"ื  19 ืื• 26 ื‘ืื•ืง') ื™ื™ืงื‘ืข ื‘ืงืจื•ื‘ ืœืจืฉื™ืžืช ืขืฉืจื•ืช ื”ื›ื ืกื™ื ืฉืžืชืืจื’ื ื™ื: mind-il.org/
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๐ŸŽ‰ Happy to share our latest work: Bootstrap Your Generator: Unpaired Visual Editing with Flow Matching (accepted to #ICML2026)! TL;DR: We train image and video editing models without any paired data. No ground-truth edit data, no external reward models.
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Excited to present two papers at #CVPR2026 this week! ๐Ÿš€ ๐Ÿ“ธ Image Generation from Contextually-Contradictory Prompts We introduce a training-free method that leverages the coarse-to-fine nature of diffusion models to better handle conflicting concepts in prompts. ๐Ÿ•ฆ Sat, Jun 6 | 11:45 AM โ€“ 1:45 PM ๐Ÿ“ ExHall F, Poster #60 ๐Ÿ”— Project Page: tdpc2025.github.io/SAP/ ๐ŸŽฅ SemanticMoments: Training-Free Motion Similarity via Third Moment Features We introduce a training-free method for motion similarity in videos, leveraging higher-order temporal statistics to better capture semantic motion dynamics. ๐Ÿ•ข Sun, Jun 7 | 7:30 AM โ€“ 9:00 AM ๐Ÿ“ ExHall A, Poster #178 ๐Ÿ“„ Paper: arxiv.org/abs/2602.09146 Come by and say hi! ๐Ÿ‘‹ @OPatashnik @DanielCohenOr1 @MokadyRon @BenaimSagie @kfir99 @OmerDahary
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Excited to be giving a talk today at 12 PM at the Personalization Workshop โœจ
Join us on this morning from 8:30AMโ€“12:30PM for the 2nd Personalization in Generative AI Workshop (P13N) at @CVPR! #CVPR2026 #P13N We have an amazing speaker and panelist lineup including @natanielruizg @AbermanKfir @OPatashnik @RanaHanocka @ElorHadar More details: p13n-workshop.github.io
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Join us on June 4, 8:30AMโ€“12:30PM, Room 4CD, for the 2nd Personalization in Generative AI Workshop (P13N) at @CVPR! #CVPR2026 #P13N Talks, posters & a panel on the future of generative AI systems that adapt to users' preferences, identities & contexts! p13n-workshop.github.io
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I'll be presenting some of our recent works at the AI for Visual Arts (Room 4AB, 9am), Spatial Intelligence for Cultural Heritage (Room 708, 2:15pm) and the What is Next in Multimodal Foundation Models? (Room 3A, 4pm) workshops at @CVPR tomorrow. Please join if you're around!
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Join us on June 4, 8:30AMโ€“12:30PM, Room 4CD, for the 2nd Personalization in Generative AI Workshop (P13N) at @CVPR! #CVPR2026 #P13N Talks, posters & a panel on the future of generative AI systems that adapt to users' preferences, identities & contexts!
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The code for Prox-E is now available! - github.com/etaisella/Prox-E Check it out and let us know if you find any issues
Even today, with powerful image editing models, making fine-grained structural changes to 3D shapes remains a major challenge. In our new #SIGGRAPH2026 paper, Prox-E, we use primitive-based abstraction to leverage VLMs for precise, reasoning-based 3D editing! ๐Ÿ‘‡
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