COMMUNICABLE DISEASES SURVEILLANCE … DISEASES SURVEILLANCE BULLETIN ,
Trends in IP video surveillance - 2015 Tsvetan Filev.
-
Upload
annabel-nichols -
Category
Documents
-
view
215 -
download
0
Transcript of Trends in IP video surveillance - 2015 Tsvetan Filev.
![Page 2: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/2.jpg)
History
• CCTV – Close Circuit Television
• Introduced in 1940 by the Germans for monitoring Rockets
• US 1949 – Vericon
• UK, US 1960 – Wide spread
• VHS (Video Home System) – 1980s
• Multiplexing recorders – 1990s (480x640 – 0.3 Megapixels)
• HDD - Middle 1990s (analog to digital)
• NetEye200 from Axis communications. 1 FPS, 17 sec to generate an image. JPEG – Joint Photographic Experts Group. Axis founded in 1984.
• VMS – end of 1990s
• VSAAS – 2000s
• 4k video (3840x2160) – 2010s
• 20 Mpixel
![Page 3: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/3.jpg)
Domains
• Cities• Airports• Retail• Schools• Police• Concerts• Power plants• Military• Production
![Page 4: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/4.jpg)
Components of a VMS
• Video• Audio• Events• Output relays• EDGE storage• Metadata• PTZ
![Page 5: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/5.jpg)
Video
• Live, Record, Search, Evidence lock• Codecs – MJPEG, MPEG4, H.263, H.264, H.265• Compression – JPEG, MPEG (I frames, P frames, B frames, GOP)• Parameters – FPS, Resolution, Bitrate, JPEG quality, image settings• Streaming – transport (RTPS/RTP over UDP, TCP, HTTP)
![Page 6: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/6.jpg)
MPEG/H.264
Source: https://en.wikipedia.org/wiki/Inter_frame
![Page 7: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/7.jpg)
OSI and Internet model
![Page 8: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/8.jpg)
Streaming (RTSP/RTP)
![Page 9: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/9.jpg)
RTSP communication
![Page 10: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/10.jpg)
Audio
• Codecs – AAC, G.711, G.726• Two way audio
![Page 11: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/11.jpg)
Events
• Digital inputs• Motion detection• Line crossing• Video loss• Temperature• Audio level• Object appear/disappear• Object direction/speed• Face detection• Loitering• Stopped vehicle• Scream• SD card
![Page 12: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/12.jpg)
Output relays
• Dry circuit – open collector• Control of doors, windows, alarms, motors, etc.
![Page 13: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/13.jpg)
EDGE storage
• SD card storage• Retrieve audio/video if network is down
![Page 14: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/14.jpg)
Metadata
• Bounding boxes• Moving objects
![Page 15: Trends in IP video surveillance - 2015 Tsvetan Filev.](https://reader036.fdocuments.in/reader036/viewer/2022062519/5697c0031a28abf838cc3a05/html5/thumbnails/15.jpg)
PTZ
• Pan/Tilt/Zoom• Move the sensor to a given position and zoom• Patrolling