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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="keywords" content="OpenSun3D">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Open☀️3D </title>
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<body>
<section class="hero">
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<div class="hero-body" style="background-color: #1C2D59; background-image: linear-gradient(135deg, rgba(9, 18, 41, 0.54), rgba(28, 45, 89, 0.4)), url('./static/images/Gemini_Generated_Image_9bm7k9bm7k9bm7k9.png'); background-size: cover; background-repeat: no-repeat; background-position: center;">
<div class="container is-max-desktop">
<div class="columns is-centered">
<div class="column has-text-centered">
<h1 class="title is-1 outline" style="color: white">OpenSUN3D</h1>
<p class="title is-4 outline" style="color: white">7<sup>th</sup> Workshop on Open-World 3D Scene Understanding and Representations</p>
<h1 class="is-is-5 outline" style="color: white"><b>September 8 (morning), 2026 — Room: Malmömässan B, in conjunction with ECCV 2026 in Malmö, Sweden.</b></h1>
<!-- <h1 class="is-is-5 outline" style="color: white"><b>Room: TBA</b></h1> -->
</div>
</div>
</div>
</div>
</section>
<section>
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<div class="hero-body">
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<nav id="site-navigation" class="subtitle has-text-centered nav-glass-shell" aria-label="Site navigation">
<a href="#schedule" class="button nav-glass-button">Schedule</a>
<a href="#speakers" class="button nav-glass-button">Speakers</a>
<a href="#paper_track" class="button nav-glass-button">Paper Track</a>
<!-- <a href="#posters" class="button">Posters</a> -->
<a href="#challenge" class="button nav-glass-button">Challenge</a>
<a href="#winners" class="button nav-glass-button" style="background: linear-gradient(135deg, #ffd233, #f4a900); color: #3a2a00; border-color: #d99400; font-weight: 700;">🏆 Winners</a>
<!-- <a href="#relatedwork" class="button">Related Work</a> -->
<a href="#organizers" class="button nav-glass-button">Organizers</a>
<div class="dropdown nav-glass-dropdown">
<button type="button" class="button nav-glass-button" aria-expanded="false" aria-haspopup="true">All Editions <i class="fa fa-chevron-down" aria-hidden="true"></i></button>
<div class="dropdown-content">
<a href="index.html">ECCV 2026</a><br />
<a href="index_cvpr26.html">CVPR 2026</a><br />
<a href="index_iccv25.html">ICCV 2025</a><br />
<a href="index_cvpr25.html">CVPR 2025</a><br />
<a href="index_eccv24.html">ECCV 2024</a><br />
<a href="index_cvpr24.html">CVPR 2024</a><br />
<a href="index_iccv23.html">ICCV 2023</a>
</div>
</div>
</nav>
</div>
</div>
</section>
<script>
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<!--
<div class="announce-wrap">
<div class="announce">
<div class="announce-glow"></div>
<div class="announce-inner">
<div class="announce-top">
<span class="announce-pill">★ Now Open</span>
<span class="announce-headline">Open for submissions</span>
</div>
<div class="announce-cards">
<a class="announce-item" href="#paper_track">
<span class="eyebrow"><i class="fa fa-file-text"></i> Paper Track</span>
<h4>Call for Papers</h4>
<p>Proceedings & non-archival submissions — deadline Aug 1, 2026.</p>
</a>
<a class="announce-item" href="#paper_track">
<span class="eyebrow"><i class="fa fa-brain"></i> SpatialMem <span class="tag-new">NEW</span></span>
<h4>Huawei SpatialMem Track</h4>
<p>New sponsored paper sub-track on memory-centric spatial intelligence.</p>
</a>
<a class="announce-item" href="#challenge">
<span class="eyebrow"><i class="fa fa-trophy"></i> Challenge</span>
<h4>3-Track Challenge</h4>
<p>Functionality, affordance & interaction understanding in 3D.</p>
</a>
</div>
<div class="announce-prize">
🏆 <strong>Prizes for paper & challenge winners</strong> — provided by
<img src="https://upload.wikimedia.org/wikipedia/en/0/04/Huawei_Standard_logo.svg" alt="Huawei" />
<em>· prizes announced soon.</em>
</div>
</div>
</div>
</div>
-->
<section class="section" id="Motivation">
<div class="container is-max-desktop content">
<h2 class="title">Introduction</h2>
<div class="content has-text-justified">
For intelligent agents to thrive in the physical world, they must not only perceive but also comprehend and act within it.
This year’s workshop unites leading researchers advancing world models and spatial intelligence, from 3D perception and scene understanding to generative world representations.
Through keynotes and a challenge on open 3D interaction perception, we will explore how machines learn to reason about and engage with their environments.
The workshop aims to shape the next generation of spatially grounded AI, bridging scientific discovery, practical deployment, and responsible innovation.
</div>
</div>
</section>
<!-- Important Dates section temporarily hidden.
<section class="section" id="global-timeline">
<div class="container is-max-desktop content">
<h2 class="title is-4">
Important Dates
</h2>
<div class="timeline-horizontal">
<div class="timeline-item" data-date="2026-06-15">
<a class="button is-small is-dark is-outlined" href="#challenge">Challenge</a>
<p>Challenges Open</p>
<time>Jun 15, 2026</time>
</div>
<div class="timeline-item" data-date="2026-06-15">
<a class="button is-small is-link is-outlined" href="#paper_track">Paper Track</a>
<p>Paper Submissions Open</p>
<time>Jun 15, 2026</time>
</div>
<div class="timeline-item" data-date="2026-08-01">
<a class="button is-small is-link is-outlined" href="#paper_track">Paper Track</a>
<p>Proceedings Track Deadline</p>
<time>Aug 1, 2026</time>
</div>
<div class="timeline-item" data-date="2026-08-01">
<a class="button is-small is-link is-outlined" href="#paper_track">Paper Track</a>
<p>Non-Archival Track Deadline</p>
<time>Aug 1, 2026</time>
</div>
<div class="timeline-item" data-date="2026-08-25">
<a class="button is-small is-dark is-outlined" href="#challenge">Challenge</a>
<p>Track 3 Deadline</p>
<time>Aug 25, 2026</time>
</div>
<div class="timeline-item" data-date="2026-09-04">
<a class="button is-small is-dark is-outlined" href="#challenge">Challenge</a>
<p>Tracks 1 & 2 Deadline</p>
<time>Sep 4, 2026 (AoE)</time>
</div>
<div class="timeline-item" data-date="2026-09-08">
<a class="button is-small is-warning" href="#speakers">Workshop</a>
<p>Workshop</p>
<time>Sep 8, 2026</time>
</div>
</div>
<div class="next-deadline-box">
⏳ <strong>Next deadline:</strong>
<span id="next-deadline-label"></span>
—
<span id="next-deadline-countdown"></span>
</div>
</div>
</section>
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-->
<!-- <section class="section" style="margin-top: -50px">
<div class="container is-max-desktop">
<section class="section" id="Challenge">
<div class="container is-max-desktop content">
<h2 class="title" id="challenge">Challenge 🚀</h2>
This year, our challenge will consist of two tracks, open-vocabulary 3D object instance search and
open-vocabulary 3D functionality grounding.
<br>
<ul>
<li><b>Challenge Track 1</b>: <a href="https://opensun3d.github.io/cvpr24-challenge/track_1">Open-vocabulary
3D Object Instance
Search</a></li>
<ul>
<li><b>Submission Portal</b>: <a
href="https://eval.ai/web/challenges/challenge-page/2102/overview">EvalAI</a></li>
<li><b>Data Instructions & Helper Scripts</b>: April 17, 2024</li>
<li><b>Dev Phase Start</b>: April 17, 2024</li>
<li><b>Submission Portal Start</b>: April 19, 2024</li>
<li><b>Test Phase Start</b>: May 1, 2024</li>
<li><b>Test Phase End</b>: June 14, 2024 (14:00 Pacific Time)</li>
</ul>
<li><b>Challenge Track 2</b>: <a href="https://opensun3d.github.io/cvpr24-challenge/track_2">Open-vocabulary
3D Functionality
Grounding</a></li>
<ul>
<li><b>Submission Portal</b>: <a
href="https://eval.ai/web/challenges/challenge-page/2262/overview">EvalAI</a></li>
<li><b>Data Instructions & Helper Scripts</b>: April 17, 2024</li>
<li><b>Dev Phase Start</b>: April 17, 2024</li>
<li><b>Submission Portal Start</b>: April 19, 2024</li>
<li><b>Test Phase Start</b>: May 4, 2024</li>
<li><b>Test Phase End</b>: June 14, 2024 (14:00 Pacific Time)</li>
</ul>
</ul>
<p>Please check <a href="https://opensun3d.github.io/index_iccv23.html#challengeresults">this page</a>
out
for an overview of last year's challenge results.
We have also published a <a href="https://arxiv.org/abs/2402.15321"> technical report</a> providing an
overview of our ICCV 2023 workshop challenge.</p>
<p>Our workshop challenge is proudly supported by:</p>
<p align="center">
<img src="static/images/matterport.png" width="40%" style="margin: 20px" />
<img src="static/images/nvidia.png" width="40%" style="margin: 20px" />
</p>
</div>
</section>
</div>
</section>
<section class="section" id="Papers">
<div class="container is-max-desktop content">
<h2 class="title" id="dates">Important Dates 🗓️</h2>
<b>Paper Track</b>: We accept novel full 8-page papers for publication in the proceedings, and
either shorter
4-page extended abstracts or 8-page papers of novel or previously published work that will not
be included in
the
proceedings. All submissions have to follow the <a
href="https://cvpr.thecvf.com/Conferences/2024/AuthorGuidelines">CVPR 2024 author
guidelines.</a>
</li>
<ul>
<li><b>Submission Portal</b>: <a href="https://cmt3.research.microsoft.com/OpenSUN3D2024">CMT</a></li>
<li><b>Paper Submission Deadline</b>: April 1, 2024 (23:59 Pacific Time)</li>
<li><b>Notification to Authors</b>: April 9, 2024</li>
<li><b>Camera-ready submission</b>: April 14, 2024</li>
</ul>
</div>
</section> -->
<div class="schedule-speakers-sections" style="display: flex; flex-direction: column;">
<section class="section" id="schedule" style="order: 2;">
<div class="container is-max-desktop content">
<h2 class="title">Schedule</h2>
<p class="is-size-6">Workshop Room: Malmömässan B</p>
<p class="is-size-6">Poster Presentation Room: Malmömässan Exhibit Hall</p>
<div class="content has-text-justified">
<table class="table table-striped">
<tr>
<td width="130">09:00 - 09:10</td>
<td style="background-color: #ddadef37">Welcome & Introduction</td>
</tr>
<tr>
<td>09:10 - 09:40</td>
<td style="background-color:#8cd8fb72">
Keynote 1
<a href="https://niessnerlab.org/members/matthias_niessner/profile.html" target="_blank"><b>Matthias Nießner</b></a> <span style="font-weight: normal;">(TUM / SpAItial AI)</span>
</td>
</tr>
<tr>
<td>09:40 - 10:10</td>
<td style="background-color:#8cd8fb72">
Keynote 2
<a href="https://dimadamen.github.io/" target="_blank"><b>Dima Damen</b></a> <span style="font-weight: normal;">(University of Bristol / Google DeepMind)</span>
</td>
</tr>
<tr>
<td>10:10 - 11:00</td>
<td style="background-color: #ddadef37">
Coffee Break & Poster Session<br>
<small>Poster Presentation Room: Malmömässan Exhibit Hall</small>
</td>
</tr>
<tr>
<td>11:00 - 11:30</td>
<td style="background-color:#8cd8fb72">
Keynote 3
<a href="http://www.carldoersch.com/" target="_blank"><b>Carl Doersch</b></a> <span style="font-weight: normal;">(Google DeepMind)</span>
</td>
</tr>
<tr>
<td>11:30 - 12:00</td>
<td style="background-color:#8cd8fb72">
Keynote 4
<a href="https://www.linkedin.com/in/peter-kontschieder-2a6410134/" target="_blank"><b>Peter Kontschieder</b></a> <span style="font-weight: normal;">(Meta)</span>
</td>
</tr>
<tr>
<td>12:00 - 12:30</td>
<td style="background-color:#8cd8fb72">
Winners Talks
</td>
</tr>
<tr>
<td>12:30 - 12:40</td>
<td style="background-color: #ddadef37">Concluding Remarks</td>
</tr>
</table>
</div>
</div>
</section>
<section class="section" id="Invited Speakers" style="order: 1;">
<div class="container is-max-desktop content">
<h2 class="title" id="speakers">Keynote Speakers</h2>
<!-- <div class="card">
<div class="card-content">
<div class="columns is-vcentered">
<div class="column is-one-quarter">
<figure class="image is-128x128">
<img class="is-rounded" src="static/img/tali.jpg" style="width: 128px; height: 128px; object-fit: cover;">
</figure>
</div>
<div class="column">
<a href="https://www.weizmann.ac.il/math/dekel/" target="_blank">
<p class="title is-4">Tali Dekel</p>
<p class="subtitle is-6">Associate Professor at Weizmann Institute<br />Staff Research Scientist at Google Deepmind</p>
</a>
</div>
</div>
<p>
Tali Dekel is an Associate Professor at the Faculty of Mathematics and Computer Science at the Weizmann Institute of Science,
and a Staff Research Scientist at Google DeepMind. Before that she was a Postdoctoral Associate with Prof. Bill Freeman, at CSAIL, MIT.
She completed her Ph.D. in the school of Electrical Engineering of Tel-Aviv University, where she was supervised by Prof. Shai Avidan (TAU) and Prof. Yael Moses (IDC).
Her main research interests include images and videos analysis, multi-view systems, 3D structure and motion estimation, image synthesize and rendering.
</p>
</div>
</div> -->
<br />
<div class="card">
<div class="card-content">
<div class="columns is-vcentered">
<div class="column is-one-quarter">
<figure class="image is-128x128">
<img class="is-rounded" src="https://niessnerlab.org/members/matthias_niessner/img.jpg" style="width: 128px; height: 128px; object-fit: cover;">
</figure>
</div>
<div class="column">
<p class="title is-4"><a href="https://niessnerlab.org/members/matthias_niessner/profile.html" target="_blank">Matthias Nießner</a></p>
<p class="subtitle is-6">TUM / SpAItial AI</p>
</a>
</div>
</div>
<p>
</p>
</div>
</div>
<br />
<div class="card">
<div class="card-content">
<div class="columns is-vcentered">
<div class="column is-one-quarter">
<figure class="image is-128x128">
<img class="is-rounded" src="https://dimadamen.github.io/Dima2019_s.jpg" style="width: 128px; height: 128px; object-fit: cover;">
</figure>
</div>
<div class="column">
<p class="title is-4"><a href="https://dimadamen.github.io/" target="_blank">Dima Damen</a></p>
<p class="subtitle is-6">University of Bristol / Google DeepMind</p>
</a>
</div>
</div>
<p>
</p>
</div>
</div>
<br />
<div class="card">
<div class="card-content">
<div class="columns is-vcentered">
<div class="column is-one-quarter">
<figure class="image is-128x128">
<img class="is-rounded" src="static/img/doersch.jpg" style="width: 128px; height: 128px; object-fit: cover;">
</figure>
</div>
<div class="column">
<p class="title is-4"><a href="http://www.carldoersch.com/" target="_blank">Carl Doersch</a></p>
<p class="subtitle is-6">Google DeepMind</p>
</a>
</div>
</div>
<p>
</p>
</div>
</div>
<br />
<div class="card">
<div class="card-content">
<div class="columns is-vcentered">
<div class="column is-one-quarter">
<figure class="image is-128x128">
<img class="is-rounded" src="https://scholar.googleusercontent.com/citations?view_op=view_photo&user=CxbDDRMAAAAJ&citpid=4" style="width: 128px; height: 128px; object-fit: cover;">
</figure>
</div>
<div class="column">
<p class="title is-4"><a href="https://www.linkedin.com/in/peter-kontschieder-2a6410134/" target="_blank">Peter Kontschieder</a></p>
<p class="subtitle is-6">Research Director at Meta</p>
</a>
</div>
</div>
<p>
</p>
</div>
</div>
</div>
</section>
</div>
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<!--
<section class="section" id="dates">
<div class="container is-max-desktop content">
<h2 class="title" id="challenge">Challenge</h2>
<p>
This year, we host a challenge based on the <a href="https://scenefun3d.github.io" target="_blank" rel="noopener">SceneFun3D benchmark</a> and the <a href="https://insait-institute.github.io/articulate3d.github.io/" target="_blank" rel="noopener">Articulate3D dataset</a>.
The challenge focuses on fine-grained functionality, affordance, and interaction understanding in 3D indoor environments. It consists of three tracks:
</p>
<span style="
background: linear-gradient(135deg, #dbe7ff 0%, #cddcff 100%);
color: #044285;
padding: 0.25em 0.5em;
border-radius: 6px;
font-weight: 600;
font-size: 0.95rem;
display: inline-block;
line-height: 1.4;
">
🏆 Prize per challenge winner team: €1,000
</span>
<ul>
<li><b>Track 1:</b> Functionality Segmentation [SceneFun3D] <a href="https://scenefun3d.github.io/benchmark">Benchmark</a></li>
<li><b>Track 2:</b> Open-Vocabulary 3D Affordance Grounding [SceneFun3D] <a href="https://scenefun3d.github.io/benchmark">Benchmark</a></li>
<li><b>Track 3:</b> Interaction Understanding [Articulate3D]</li>
</ul>
<p>Below are key resources and important dates for each track.</p>
<h4>Tracks 1 & 2 [SceneFun3D]</h4>
<ul>
<li><a href="https://scenefun3d.github.io/documentation" target="_blank" rel="noopener">SceneFun3D Documentation</a></li>
<li><a href="https://eval.ai/web/challenges/challenge-page/2466/overview" target="_blank" rel="noopener">Benchmark Submission Portal</a></li>
<li><a href="https://scenefun3d.github.io/documentation/benchmarks/guidelines/" target="_blank" rel="noopener">Benchmark Submission Instructions</a></li>
<li><b>Submission Opens:</b> June 25, 2025</li>
<li><b>Submission Deadline:</b> October 14, 2025</li>
</ul>
<h4>Track 3 [Articulate3D]</h4>
<ul>
<li><a href="https://insait-institute.github.io/articulate3d.github.io/challenge.html" target="_blank" rel="noopener">Track 3 Documentation</a></li>
<li><a href="https://insait-institute.github.io/articulate3d.github.io" target="_blank" rel="noopener">Articulate3D</a></li>
<li><a href="https://art3dchallenge.jumpingcrab.com/web/challenges/challenge-page/21/overview" target="_blank" rel="noopener">Track 3 Submission Portal</a></li>
<li><b>Submission Opens:</b> August 1, 2025</li>
<li><b>Submission Deadline:</b> October 14, 2025</li>
</ul>
</div>
</section>
<section class="section" id="dates">
<div class="container is-max-desktop content">
<h2 class="title" id="paper_track">Poster Presentations</h2>
All paper submission that are accepted have to option to be presented as posters during the workshop.
<br><br>
<u>For poster presenters</u>:
Please use <b>poster boards 148-157</b> in <b>Hall D (Level 3)</b> to put your poster.
<br><br>
<u>Printing your poster</u>:
Please follow the official <a href="https://cvpr.thecvf.com/Conferences/2025/PosterPrintingInformation">CVPR 2025 guidelines for poster preparation</a>.
Note the <b>early bird</b> poster printing deadline of <b>May 25, 2025</b>.
</div>
</section> -->
<!--
<section class="section" id="dates">
<div class="container is-max-desktop content">
<h2 class="title" id="paper_track">Paper Track</h2>
We invite <b>8-page full papers</b> for inclusion in the proceedings,
as well as <b>4-page extended abstracts</b>. Extended abstracts may present either new or previously published work
but will not be included in the proceedings.
4-page extended abstracts generally do not conflict with the dual submission policies of other conferences,
whereas 8-page full papers, if accepted, will be part of the proceedings and are therefore subject to the dual submission policy
(i.e., they cannot be under review for another conference at the same time or already accepted at another conference).
All submissions should be anonymous and follow the <a href="https://media.eventhosts.cc/Conferences/ICCV2025/ICCV2025-Author-Kit-Feb.zip">official ICCV 2025</a> guidelines.
<ul>
<li><b>Submission portal</b>: <a href="https://openreview.net/group?id=thecvf.com/ICCV/2025/Workshop/OpenSUN3D#tab-recent-activity">OpenReview</a></li>
<li><b>Paper submission opens</b>: June 23, 2025 </li>
<br>
<b>SUBMISSION DEADLINE 1 - Full Papers in Proceedings</b>
<li><b>Submission deadline 1 (full-papers in proceedings) </b>: July 4, 2025 (23:59 GMT) <i> (Countdown: <span class="countdown" data-target="July 1, 2025 23:59:59 UTC"></span>)</i>
<!-- <i> (Countdown: <span class="countdown" data-target="July 1, 2025 23:59:59 UTC"></span>)</i>
</li>
<li><b>Notification to authors (full-papers in proceedings)</b>: July 10, 2025 </li>
<li><b>Camera ready submission</b>: August 10, 2025 </li>
<br>
<b>SUBMISSION DEADLINE 2 - Extended Abstracts and Non-Archival Full Papers (No Proceedings!)</b>
</li>
<li><b>Submission deadline 2 </b>: September 1, 2025 (23:59 GMT) <i> (Countdown: <span class="countdown" data-target="September 1, 2025 23:59:59 UTC"></span>)</i>
<li><b>Notification to authors</b>: September 15, 2025 </li>
</ul>
</div>
</section> -->
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<section class="section" id="poster_presentation">
<div class="container is-max-desktop content">
<h2 class="title">Poster Session</h2>
<div class="notification is-info is-light">
<ul>
<li>Poster Presentation Room: <strong>Malmömässan Exhibit Hall</strong>.</li>
<!-- Remove this temporary board-assignment notice after the 10:00–11:00 poster presentation. -->
<li>Poster board IDs: <strong>39–58</strong>. Any of these may be used for the <strong>10:00 am–11:00 am</strong> poster presentation.</li>
<li>Poster boards measure <strong>140 cm wide × 100 cm high</strong> (landscape orientation).</li>
<li><a href="poster_template_eccv26.pptx" download><strong>Download the ECCV 2026 poster template</strong> (.pptx).</a></li>
<li>Poster printing information will be posted on the website shortly.</li>
</ul>
</div>
</div>
</section>
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<h2 class="title">
Paper Track
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</h2>
<table class="table is-fullwidth is-striped">
<thead>
<tr>
<th>Submission Type</th>
<th>Length</th>
<th>In Proceedings</th>
<th>Deadline</th>
<th>Policies</th>
</tr>
</thead>
<tbody>
<tr>
<td>Proceedings Track</td>
<td>14 pages</td>
<td>Yes</td>
<td><strong>August 1, 2026</strong></td>
<td>Anonymous, subject to dual-submission rules.</td>
</tr>
<tr>
<td>Non-Archival Track</td>
<td>7 / 14 pages</td>
<td>No</td>
<td><strong>August 1, 2026</strong></td>
<td>Anonymous, may include previously published work.</td>
</tr>
</tbody>
</table>
<div style="margin-top: 1rem; margin-bottom: 1rem;">
<a class="button_submit" href="https://openreview.net/group?id=thecvf.com/ECCV/2026/Workshop/OpenSUN3D" target="_blank" rel="noopener">
Submit via OpenReview
</a>
</div>
<p>
All submissions must be anonymous and follow the
<a href="https://eccv.ecva.net/Conferences/2026/SubmissionPolicies">ECCV 26 author guidelines</a>.
</p>
<div class="columns is-multiline">
<!-- Deadline 1 -->
<div class="column is-6">
<div class="card">
<div class="card-content">
<h4 class="title is-5">
Submission Deadline 1:<br>Proceedings Track
</h4>
<p>
14-page full papers for inclusion in the <strong>ECCV workshop proceedings</strong>.
Those submissions are subject to the dual submission policy, only original work not under review or published elsewhere is allowed.
</p>
<ul>
<li>
<i class="fa fa-flag-checkered"></i>
<strong>Submission deadline:</strong> August 1, 2026
</li>
<li>
<i class="fa fa-envelope"></i>
<strong>Notification to authors:</strong> August 10, 2026
</li>
<li>
<i class="fa fa-upload"></i>
<strong>Camera-ready submission:</strong> August 15, 2026
</li>
</ul>
</div>
</div>
</div>
<!-- Deadline 2 -->
<div class="column is-6">
<div class="card">
<div class="card-content">
<h4 class="title is-5">