Repository files navigation

Real-time Crowd Segmentation from 2D/3D lidar person detections

Simulating crowds of people in Isaac Sim

This repository...

If you find this code relevant for your work, please consider citing one or both of these papers. A bibtex entry is provided below:

@article{hughes2023foundations,
title={TODO},
author={TODO},
year={2024},
eprint={xxxx.xxxxx},
archivePrefix={arXiv},
primaryClass={cs.RO}
}

Installation

Requirements

  • GPU for machine learning
    • When not using CUDA install pytorch manually!

Setup

  1. Create a virtual python environment with python3 -m venv env
  2. Enter into the environment using source env/bin/activate
  3. Install required packages pip install -r requirements.txt

Configuration

Most basic configurations for both input/label generation and the scene segmentation itself can be found in the config folder.

Run

Input and Label Generator

Requirements

Have detection data in either CrowdBot or JRDB (with additional velocities of all people) format. See this repository for a simulator to create data in JRDB format.

Usage with JRDB based data

Run python3 generator/generator.py --dataformat "JRDB" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.

Usage with CrowdBot data

This requires a few more arguments

Run python3 generator/generator.py --dataformat "CrowdBot" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.
  • --input_tf with the path to the file with all tf frames.
  • --input_vel with the path to the file with all detection velocities.

Additionally the argument --label "False" can be added for both cases to only generate the input without generating all the label.

Scene segmentation

Train

  1. Create a text file at the location given by data_root in the config/config.yml file. This file should have all relative paths to the training data folder.

Optionally: The same can be done for the validation data using validation_dir as the config variable

  1. Run python3 engine/train.py to start training of the model.

Predict

Run python3 engine/predict.py with the following arguments.

  • --input with the location to the input images you want to predict
  • --output with the location where the predicted segmentations should be stored
  • --checkpoint with the path to the checkpoint file to restart at. If empty it will retrain with the given data.

About

Segmentation of crowded spaces, with conversion from 3D lidar detections to visual scene descriptors

Resources

Stars

0 stars

Watchers

1 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Skip to content

Repository files navigation

Real-time Crowd Segmentation from 2D/3D lidar person detections

Simulating crowds of people in Isaac Sim

This repository...

If you find this code relevant for your work, please consider citing one or both of these papers. A bibtex entry is provided below:

@article{hughes2023foundations,
title={TODO},
author={TODO},
year={2024},
eprint={xxxx.xxxxx},
archivePrefix={arXiv},
primaryClass={cs.RO}
}

Installation

Requirements

  • GPU for machine learning
    • When not using CUDA install pytorch manually!

Setup

  1. Create a virtual python environment with python3 -m venv env
  2. Enter into the environment using source env/bin/activate
  3. Install required packages pip install -r requirements.txt

Configuration

Most basic configurations for both input/label generation and the scene segmentation itself can be found in the config folder.

Run

Input and Label Generator

Requirements

Have detection data in either CrowdBot or JRDB (with additional velocities of all people) format. See this repository for a simulator to create data in JRDB format.

Usage with JRDB based data

Run python3 generator/generator.py --dataformat "JRDB" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.

Usage with CrowdBot data

This requires a few more arguments

Run python3 generator/generator.py --dataformat "CrowdBot" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.
  • --input_tf with the path to the file with all tf frames.
  • --input_vel with the path to the file with all detection velocities.

Additionally the argument --label "False" can be added for both cases to only generate the input without generating all the label.

Scene segmentation

Train

  1. Create a text file at the location given by data_root in the config/config.yml file. This file should have all relative paths to the training data folder.

Optionally: The same can be done for the validation data using validation_dir as the config variable

  1. Run python3 engine/train.py to start training of the model.

Predict

Run python3 engine/predict.py with the following arguments.

  • --input with the location to the input images you want to predict
  • --output with the location where the predicted segmentations should be stored
  • --checkpoint with the path to the checkpoint file to restart at. If empty it will retrain with the given data.

About

Segmentation of crowded spaces, with conversion from 3D lidar detections to visual scene descriptors

Resources

Stars

0 stars

Watchers

1 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Repository files navigation

Real-time Crowd Segmentation from 2D/3D lidar person detections

Simulating crowds of people in Isaac Sim

This repository...

If you find this code relevant for your work, please consider citing one or both of these papers. A bibtex entry is provided below:

@article{hughes2023foundations,
title={TODO},
author={TODO},
year={2024},
eprint={xxxx.xxxxx},
archivePrefix={arXiv},
primaryClass={cs.RO}
}

Installation

Requirements

  • GPU for machine learning
    • When not using CUDA install pytorch manually!

Setup

  1. Create a virtual python environment with python3 -m venv env
  2. Enter into the environment using source env/bin/activate
  3. Install required packages pip install -r requirements.txt

Configuration

Most basic configurations for both input/label generation and the scene segmentation itself can be found in the config folder.

Run

Input and Label Generator

Requirements

Have detection data in either CrowdBot or JRDB (with additional velocities of all people) format. See this repository for a simulator to create data in JRDB format.

Usage with JRDB based data

Run python3 generator/generator.py --dataformat "JRDB" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.

Usage with CrowdBot data

This requires a few more arguments

Run python3 generator/generator.py --dataformat "CrowdBot" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.
  • --input_tf with the path to the file with all tf frames.
  • --input_vel with the path to the file with all detection velocities.

Additionally the argument --label "False" can be added for both cases to only generate the input without generating all the label.

Scene segmentation

Train

  1. Create a text file at the location given by data_root in the config/config.yml file. This file should have all relative paths to the training data folder.

Optionally: The same can be done for the validation data using validation_dir as the config variable

  1. Run python3 engine/train.py to start training of the model.

Predict

Run python3 engine/predict.py with the following arguments.

  • --input with the location to the input images you want to predict
  • --output with the location where the predicted segmentations should be stored
  • --checkpoint with the path to the checkpoint file to restart at. If empty it will retrain with the given data.

About

Segmentation of crowded spaces, with conversion from 3D lidar detections to visual scene descriptors

Resources

Stars

0 stars

Watchers

1 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Repository files navigation

Real-time Crowd Segmentation from 2D/3D lidar person detections

Simulating crowds of people in Isaac Sim

This repository...

If you find this code relevant for your work, please consider citing one or both of these papers. A bibtex entry is provided below:

@article{hughes2023foundations,
title={TODO},
author={TODO},
year={2024},
eprint={xxxx.xxxxx},
archivePrefix={arXiv},
primaryClass={cs.RO}
}

Installation

Requirements

  • GPU for machine learning
    • When not using CUDA install pytorch manually!

Setup

  1. Create a virtual python environment with python3 -m venv env
  2. Enter into the environment using source env/bin/activate
  3. Install required packages pip install -r requirements.txt

Configuration

Most basic configurations for both input/label generation and the scene segmentation itself can be found in the config folder.

Run

Input and Label Generator

Requirements

Have detection data in either CrowdBot or JRDB (with additional velocities of all people) format. See this repository for a simulator to create data in JRDB format.

Usage with JRDB based data

Run python3 generator/generator.py --dataformat "JRDB" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.

Usage with CrowdBot data

This requires a few more arguments

Run python3 generator/generator.py --dataformat "CrowdBot" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.
  • --input_tf with the path to the file with all tf frames.
  • --input_vel with the path to the file with all detection velocities.

Additionally the argument --label "False" can be added for both cases to only generate the input without generating all the label.

Scene segmentation

Train

  1. Create a text file at the location given by data_root in the config/config.yml file. This file should have all relative paths to the training data folder.

Optionally: The same can be done for the validation data using validation_dir as the config variable

  1. Run python3 engine/train.py to start training of the model.

Predict

Run python3 engine/predict.py with the following arguments.

  • --input with the location to the input images you want to predict
  • --output with the location where the predicted segmentations should be stored
  • --checkpoint with the path to the checkpoint file to restart at. If empty it will retrain with the given data.

About

Segmentation of crowded spaces, with conversion from 3D lidar detections to visual scene descriptors

Resources

Stars

0 stars

Watchers

1 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content

Repository files navigation

Real-time Crowd Segmentation from 2D/3D lidar person detections

Simulating crowds of people in Isaac Sim

This repository...

If you find this code relevant for your work, please consider citing one or both of these papers. A bibtex entry is provided below:

@article{hughes2023foundations,
title={TODO},
author={TODO},
year={2024},
eprint={xxxx.xxxxx},
archivePrefix={arXiv},
primaryClass={cs.RO}
}

Installation

Requirements

  • GPU for machine learning
    • When not using CUDA install pytorch manually!

Setup

  1. Create a virtual python environment with python3 -m venv env
  2. Enter into the environment using source env/bin/activate
  3. Install required packages pip install -r requirements.txt

Configuration

Most basic configurations for both input/label generation and the scene segmentation itself can be found in the config folder.

Run

Input and Label Generator

Requirements

Have detection data in either CrowdBot or JRDB (with additional velocities of all people) format. See this repository for a simulator to create data in JRDB format.

Usage with JRDB based data

Run python3 generator/generator.py --dataformat "JRDB" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.

Usage with CrowdBot data

This requires a few more arguments

Run python3 generator/generator.py --dataformat "CrowdBot" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.
  • --input_tf with the path to the file with all tf frames.
  • --input_vel with the path to the file with all detection velocities.

Additionally the argument --label "False" can be added for both cases to only generate the input without generating all the label.

Scene segmentation

Train

  1. Create a text file at the location given by data_root in the config/config.yml file. This file should have all relative paths to the training data folder.

Optionally: The same can be done for the validation data using validation_dir as the config variable

  1. Run python3 engine/train.py to start training of the model.

Predict

Run python3 engine/predict.py with the following arguments.

  • --input with the location to the input images you want to predict
  • --output with the location where the predicted segmentations should be stored
  • --checkpoint with the path to the checkpoint file to restart at. If empty it will retrain with the given data.

About

Segmentation of crowded spaces, with conversion from 3D lidar detections to visual scene descriptors

Resources

Stars

0 stars

Watchers

1 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Repository files navigation

Real-time Crowd Segmentation from 2D/3D lidar person detections

Simulating crowds of people in Isaac Sim

This repository...

If you find this code relevant for your work, please consider citing one or both of these papers. A bibtex entry is provided below:

@article{hughes2023foundations,
title={TODO},
author={TODO},
year={2024},
eprint={xxxx.xxxxx},
archivePrefix={arXiv},
primaryClass={cs.RO}
}

Installation

Requirements

  • GPU for machine learning
    • When not using CUDA install pytorch manually!

Setup

  1. Create a virtual python environment with python3 -m venv env
  2. Enter into the environment using source env/bin/activate
  3. Install required packages pip install -r requirements.txt

Configuration

Most basic configurations for both input/label generation and the scene segmentation itself can be found in the config folder.

Run

Input and Label Generator

Requirements

Have detection data in either CrowdBot or JRDB (with additional velocities of all people) format. See this repository for a simulator to create data in JRDB format.

Usage with JRDB based data

Run python3 generator/generator.py --dataformat "JRDB" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.

Usage with CrowdBot data

This requires a few more arguments

Run python3 generator/generator.py --dataformat "CrowdBot" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.
  • --input_tf with the path to the file with all tf frames.
  • --input_vel with the path to the file with all detection velocities.

Additionally the argument --label "False" can be added for both cases to only generate the input without generating all the label.

Scene segmentation

Train

  1. Create a text file at the location given by data_root in the config/config.yml file. This file should have all relative paths to the training data folder.

Optionally: The same can be done for the validation data using validation_dir as the config variable

  1. Run python3 engine/train.py to start training of the model.

Predict

Run python3 engine/predict.py with the following arguments.

  • --input with the location to the input images you want to predict
  • --output with the location where the predicted segmentations should be stored
  • --checkpoint with the path to the checkpoint file to restart at. If empty it will retrain with the given data.

About

Segmentation of crowded spaces, with conversion from 3D lidar detections to visual scene descriptors

Resources

Stars

0 stars

Watchers

1 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

Repository files navigation

Real-time Crowd Segmentation from 2D/3D lidar person detections

Simulating crowds of people in Isaac Sim

This repository...

If you find this code relevant for your work, please consider citing one or both of these papers. A bibtex entry is provided below:

@article{hughes2023foundations,
title={TODO},
author={TODO},
year={2024},
eprint={xxxx.xxxxx},
archivePrefix={arXiv},
primaryClass={cs.RO}
}

Installation

Requirements

  • GPU for machine learning
    • When not using CUDA install pytorch manually!

Setup

  1. Create a virtual python environment with python3 -m venv env
  2. Enter into the environment using source env/bin/activate
  3. Install required packages pip install -r requirements.txt

Configuration

Most basic configurations for both input/label generation and the scene segmentation itself can be found in the config folder.

Run

Input and Label Generator

Requirements

Have detection data in either CrowdBot or JRDB (with additional velocities of all people) format. See this repository for a simulator to create data in JRDB format.

Usage with JRDB based data

Run python3 generator/generator.py --dataformat "JRDB" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.

Usage with CrowdBot data

This requires a few more arguments

Run python3 generator/generator.py --dataformat "CrowdBot" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.
  • --input_tf with the path to the file with all tf frames.
  • --input_vel with the path to the file with all detection velocities.

Additionally the argument --label "False" can be added for both cases to only generate the input without generating all the label.

Scene segmentation

Train

  1. Create a text file at the location given by data_root in the config/config.yml file. This file should have all relative paths to the training data folder.

Optionally: The same can be done for the validation data using validation_dir as the config variable

  1. Run python3 engine/train.py to start training of the model.

Predict

Run python3 engine/predict.py with the following arguments.

  • --input with the location to the input images you want to predict
  • --output with the location where the predicted segmentations should be stored
  • --checkpoint with the path to the checkpoint file to restart at. If empty it will retrain with the given data.

About

Segmentation of crowded spaces, with conversion from 3D lidar detections to visual scene descriptors

Resources

Stars

0 stars

Watchers

1 watching

Forks

Releases

Packages

Used by

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
Skip to content

Repository files navigation

Real-time Crowd Segmentation from 2D/3D lidar person detections

Simulating crowds of people in Isaac Sim

This repository...

If you find this code relevant for your work, please consider citing one or both of these papers. A bibtex entry is provided below:

@article{hughes2023foundations,
title={TODO},
author={TODO},
year={2024},
eprint={xxxx.xxxxx},
archivePrefix={arXiv},
primaryClass={cs.RO}
}

Installation

Requirements

  • GPU for machine learning
    • When not using CUDA install pytorch manually!

Setup

  1. Create a virtual python environment with python3 -m venv env
  2. Enter into the environment using source env/bin/activate
  3. Install required packages pip install -r requirements.txt

Configuration

Most basic configurations for both input/label generation and the scene segmentation itself can be found in the config folder.

Run

Input and Label Generator

Requirements

Have detection data in either CrowdBot or JRDB (with additional velocities of all people) format. See this repository for a simulator to create data in JRDB format.

Usage with JRDB based data

Run python3 generator/generator.py --dataformat "JRDB" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.

Usage with CrowdBot data

This requires a few more arguments

Run python3 generator/generator.py --dataformat "CrowdBot" with the following additional arguments.

  • --input with the path to your detection data
  • --output with the path where the generated images should be stored.
  • --input_tf with the path to the file with all tf frames.
  • --input_vel with the path to the file with all detection velocities.

Additionally the argument --label "False" can be added for both cases to only generate the input without generating all the label.

Scene segmentation

Train

  1. Create a text file at the location given by data_root in the config/config.yml file. This file should have all relative paths to the training data folder.

Optionally: The same can be done for the validation data using validation_dir as the config variable

  1. Run python3 engine/train.py to start training of the model.

Predict

Run python3 engine/predict.py with the following arguments.

  • --input with the location to the input images you want to predict
  • --output with the location where the predicted segmentations should be stored
  • --checkpoint with the path to the checkpoint file to restart at. If empty it will retrain with the given data.

About

Segmentation of crowded spaces, with conversion from 3D lidar detections to visual scene descriptors

Resources

Stars

0 stars

Watchers

1 watching

Forks

Releases

Packages

Used by

Contributors

Languages