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<!DOCTYPE html>
<html>
<head>
<title>SLOF</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://www.w3schools.com/w3css/4/w3.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Inconsolata">
<style>
body, html {
height: 100%;
font-family: "Inconsolata", sans-serif;
}
.bgimg {
background-position: center;
background-size: cover;
background-image: url("https://w3schools.com/w3images/coffeehouse.jpg");
min-height: 75%;
}
.menu {
display: none;
}
#myVideo {
position: relative;
right: 0;
bottom: 0;
width: 100%;
/* min-height: 100%; */
}
</style>
</head>
<body>
<!-- Links (sit on top) -->
<div class="w3-top">
<div class="w3-row w3-padding w3-black w3-center">
<h1> Learning Omnidirectional Flow in 360° Video via Siamese
Representation </h1>
</div>
<!-- <div class="w3-row w3-padding w3-black">
<div class="w3-col s3">
<a href="#" class="w3-button w3-block w3-black">HOME</a>
</div>
<div class="w3-col s3">
<a href="#about" class="w3-button w3-block w3-black">ABOUT</a>
</div>
<div class="w3-col s3">
<a href="#menu" class="w3-button w3-block w3-black">MENU</a>
</div>
<div class="w3-col s3">
<a href="#where" class="w3-button w3-block w3-black">WHERE</a>
</div>
</div> -->
</div>
<video autoplay muted loop id="myVideo">
<source src="video.m4v" type="video/mp4">
</video>
<!-- Header with image -->
<!-- <header class="bgimg w3-display-container w3-grayscale-min" id="home">
<div class="w3-display-bottomleft w3-center w3-padding-large w3-hide-small">
<span class="w3-tag">Open from 6am to 5pm</span>
</div>
<div class="w3-display-middle w3-center">
<span class="w3-text-white" style="font-size:90px">the<br>Cafe</span>
</div>
<div class="w3-display-bottomright w3-center w3-padding-large">
<span class="w3-text-white">15 Adr street, 5015</span>
</div>
</header> -->
<!-- Add a background color and large text to the whole page -->
<div class="w3-sand w3-grayscale w3-large">
<!-- About Container -->
<div class="w3-container" id="about">
<div class="w3-content" style="max-width:700px">
<h5 class="w3-center w3-padding-64"><span class="w3-tag w3-wide">ABSTRACT</span></h5>
<p align="justify">Optical flow estimation in omnidirectional videos faces two significant issues: the lack of benchmark datasets and the challenge of adapting perspective video-based methods to accommodate the omnidirectional nature. This paper proposes the first perceptually natural-synthetic omnidirectional benchmark dataset with a 360° field of view, FLOW360, with 40 different videos and 4,000 video frames. We conduct comprehensive characteristic analysis and comparisons between our dataset and existing optical flow datasets, which manifest perceptual realism, uniqueness, and diversity. To accommodate the omnidirectional nature, we present a novel Siamese representation Learning framework for Omnidirectional Flow (SLOF). We train our network in a contrastive manner with a hybrid loss function that combines contrastive loss and optical flow loss. Extensive experiments verify the proposed framework's effectiveness and show up to 40% performance improvement over the state-of-the-art approaches. We will publish the FLOW360 dataset with all raw Blender scenes and Blender add-ons for researchers to create custom optical flow datasets for perspective and omnidirectional videos.</p>
<!-- <div class="w3-panel w3-leftbar w3-light-grey">
<p><i>"Use products from nature for what it's worth - but never too early, nor too late." Fresh is the new sweet.</i></p>
<p>Chef, Coffeeist and Owner: Liam Brown</p>
</div>
<img src="https://w3schools.com/w3images/coffeeshop.jpg" style="width:100%;max-width:1000px" class="w3-margin-top">
<p><strong>Opening hours:</strong> everyday from 6am to 5pm.</p>
<p><strong>Address:</strong> 15 Adr street, 5015, NY</p> -->
</div>
</div>
<!-- Menu Container -->
<div class="w3-container" id="menu">
<div class="w3-content" style="max-width:700px">
<h5 class="w3-center w3-padding-48"><span class="w3-tag w3-wide">RESOURCES</span></h5>
<div class="w3-row w3-center w3-card w3-padding">
<a href="javascript:void(0)" onclick="openMenu(event, 'Eat');" id="myLink">
<div class="w3-col s6 tablink">FLOW360</div>
</a>
<a href="javascript:void(0)" onclick="openMenu(event, 'Drinks');">
<div class="w3-col s6 tablink">SLOF</div>
</a>
</div>
<div id="Eat" class="w3-container menu w3-padding-48 w3-card">
<h5>Dataset(Train, Test) </h5>
<p class="w3-text-grey"><a href="https://www.dropbox.com/s/nvzhazq99bg46f2/FLOW360_train_test.zip?dl=0">https://www.dropbox.com/s/nvzhazq99bg46f2/FLOW360_train_test.zip?dl=0</a></p>
<h5>Dataset(3D Assets, Blender V2.92) </h5>
<p class="w3-text-grey"><a href="https://www.dropbox.com/s/0nmrrbuhwpx4ty4/3DFiles.tar.gz?dl=0">https://www.dropbox.com/s/nvzhazq99bg46f2/FLOW360_train_test.zip?dl=0</a></p>
<!-- <h5>Dataset(RAW Files)</h5>
<p class="w3-text-grey"><a href="https://www.dropbox.com/s/0nmrrbuhwpx4ty4/3DFiles.tar.gz?dl=0">https://www.dropbox.com/s/nvzhazq99bg46f2/FLOW360_train_test.zip?dl=0</a></p> -->
<h5>Supplementary</h5>
<p class="w3-text-grey"><a href="supplementary.pdf">supplementary.pdf</a></p><br>
<h5>Sample Dataset</h5>
<p class="w3-text-grey"><a href="https://www.dropbox.com/s/gvihrzj528d92uj/videos.zip?dl=0">https://www.dropbox.com/s/gvihrzj528d92uj/videos.zip?dl=0</a></p>
</div>
<div id="Drinks" class="w3-container menu w3-padding-48 w3-card">
<h5>SLOF Model and Code</h5>
<p class="w3-text-grey"><a href="https://www.dropbox.com/s/a6qioejg6yrxo7s/SLOF.tar.gz?dl=0">https://www.dropbox.com/s/a6qioejg6yrxo7s/SLOF.tar.gz?dl=0</a></p><br>
<h5>Flow Generator</h5>
<p class="w3-text-grey"><a href="https://www.dropbox.com/s/v2mvjvs7ze8rzj1/flowgenerator.tar.gz?dl=0">https://www.dropbox.com/s/v2mvjvs7ze8rzj1/flowgenerator.tar.gz?dl=0</a></p><br>
<h5>Distortion Density Map</h5>
<p class="w3-text-grey"><a href="https://www.dropbox.com/s/q1d4eoqvj2a30ij/distortion_weight.ipynb?dl=0">https://www.dropbox.com/s/q1d4eoqvj2a30ij/distortion_weight.ipynb?dl=0</a></p>
</div>
</div>
</div>
<!-- Contact/Area Container -->
<!-- <div class="w3-container" id="where" style="padding-bottom:32px;">
<div class="w3-content" style="max-width:700px">
<h5 class="w3-center w3-padding-48"><span class="w3-tag w3-wide">WHERE TO FIND US</span></h5>
<p>Find us at some address at some place.</p>
<img src="https://w3schools.com/w3images/map.jpg" class="w3-image" style="width:100%">
<p><span class="w3-tag">FYI!</span> We offer full-service catering for any event, large or small. We understand your needs and we will cater the food to satisfy the biggerst criteria of them all, both look and taste.</p>
<p><strong>Reserve</strong> a table, ask for today's special or just send us a message:</p>
<form action="/action_page.php" target="_blank">
<p><input class="w3-input w3-padding-16 w3-border" type="text" placeholder="Name" required name="Name"></p>
<p><input class="w3-input w3-padding-16 w3-border" type="number" placeholder="How many people" required name="People"></p>
<p><input class="w3-input w3-padding-16 w3-border" type="datetime-local" placeholder="Date and time" required name="date" value="2020-11-16T20:00"></p>
<p><input class="w3-input w3-padding-16 w3-border" type="text" placeholder="Message \ Special requirements" required name="Message"></p>
<p><button class="w3-button w3-black" type="submit">SEND MESSAGE</button></p>
</form>
</div>
</div> -->
<!-- End page content -->
</div>
<!-- Footer -->
<footer class="w3-center w3-light-grey w3-padding-48 w3-large">
<p>Learning Omnidirectional Flow in 360° Video via Siamese
Representation</p>
</footer>
<script>
// Tabbed Menu
function openMenu(evt, menuName) {
var i, x, tablinks;
x = document.getElementsByClassName("menu");
for (i = 0; i < x.length; i++) {
x[i].style.display = "none";
}
tablinks = document.getElementsByClassName("tablink");
for (i = 0; i < x.length; i++) {
tablinks[i].className = tablinks[i].className.replace(" w3-dark-grey", "");
}
document.getElementById(menuName).style.display = "block";
evt.currentTarget.firstElementChild.className += " w3-dark-grey";
}
document.getElementById("myLink").click();
document.getElementsByTagName('myVideo')[0].onended = function () {
this.load();
this.play();
};
</script>
</body>
</html>