Skip to content
No description, website, or topics provided.
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
database
helper
node_modules
public
serverModules
views
.env
.gitignore
LICENSE.md
README.md
app.js
config.json
demo.js
package-lock.json
package.json

README.md

VBS Server

Official server of the annual Video Browser Showdown .

Prerequisites

  • Server: node.js (at least v8.9.4)
  • Client: Google Chrome (not tested yet with other browsers)

Getting Started

  • copy all files from "helper/testDatabase2019" to "database" to setup a sample database
  • copy all video files of the dataset (in mp4 format and without subdirectories) to public/videos (or specify a remote URL in config)
  • adapt config.json to suit your needs
    • enter the IP address of your server to "server.websocketURL" (don't use "localhost" but the actual IP!)
  • start server: node app.js
  • open Chrome browser and go to [serverIP]:[serverPort] (don't use "localhost" but the actual IP!)

Config

"server": {
	"port": 3100,	// used port
	"websocketURL": "192.168.0.1",	// URL of the server
	"videoDir": "videos/"	// directory or URL of the directory with all videos of the dataset
},
"client": {
	"extractorPoolSize": 4,		// number of HTML video elements used to extract thumbnails
	"playAudio": true,			// play sounds when submissions/judgements arrive (or not)
	"hideTeamNames": true,	// if the logos are expressive enough, additional teamNames are not necessary
	"initialFullscreenDuration": 20,	// when a task is started, the query is shown in fullscreen mode for <n> seconds
	"videoBlurProgress": {		// query video in KIS Visual tasks is progressively blurred accordingly
		"delay": [0, 40, 80, 120, 160, 200, 240, 280],		// delay in seconds
		"size": [0, 1, 2, 3, 4, 5, 6, 7]					// blur filter size (pixels)
	},
	"videoGrayscaleProgress": {		// moreover, colors are removed gradually
		"delay": [0, 40, 80, 120, 160, 180, 200, 220, 240, 260, 280],	// delay in seconds
		"percentage": [0, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100]		// percentage for grayscale filter
	},
	"chartAspectRatio": 1.5		// aspect ratio of the results charts
},
"task": {
	"defaultSearchTime": 300,	// default search time for a new task
	"KISDefaultLength": 20,		// default target segment length for a new KIS task
	"KISFrameTolerance": 25,	// tolerance for KIS submissions (in frames)
	"KISMinScore": 50,			// score that would be achieved when submitting in the last second (without penalty)
	"KISPenalty": 5,			// penalty points per wrong submission
	"KISTimeTolerance": 5,		// if a correct submission arrives shortly before the deadline, the server waits for <n> seconds for further submissions
	"AVSRangeDuration": 120,	// maximum duration (in seconds) for a "range" in AVS tasks
	"countdownTime": 5			// time in seconds for countdown before task start
},
"debugMode": true	// enables or disables the test view

Client Views

  • edit: create and modify competitions, tasks and teams
  • control: start/stop competitions and tasks
  • viewer: shows the current state of the competition (query, submissions, results). the layout can be adapted by zooming the various GUI components with ALT + mousewheel
  • judge: live judgement interface for AVS tasks
  • test: allows to simulate a competition by generating random competitions and submissions. only available if debugMode is set to true
  • inspect: post-hoc analysis of finished competitions (under construction)
  • export: export database to csv (under construction)

Authors

License

This project is licensed under the LGPL-3.0 License - see the LICENSE.md file for details

You can’t perform that action at this time.