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On image sensor dynamic range utilized by security cameras

Johannesson-Andersson, Kerstin LU (2012) Conference on Sensors, Cameras, and Systems for Industrial and Scientific Applications XIII In Sensors, Cameras, and Systems for Industrial and Scientific Applications XIII 8298.
Abstract
The dynamic range is an important quantity used to describe an image sensor. Wide/High/Extended dynamic range is often brought forward as an important feature to compare one device to another. The dynamic range of an image sensor is normally given as a single number, which is often insufficient since a single number will not fully describe the dynamic capabilities of the sensor. A camera is ideally based on a sensor that can cope with the dynamic range of the scene. Otherwise it has to sacrifice some part of the available data. For a security camera the latter may be critical since important objects might be hidden in the sacrificed part of the scene. In this paper we compare the dynamic capabilities of some image sensors utilizing a... (More)
The dynamic range is an important quantity used to describe an image sensor. Wide/High/Extended dynamic range is often brought forward as an important feature to compare one device to another. The dynamic range of an image sensor is normally given as a single number, which is often insufficient since a single number will not fully describe the dynamic capabilities of the sensor. A camera is ideally based on a sensor that can cope with the dynamic range of the scene. Otherwise it has to sacrifice some part of the available data. For a security camera the latter may be critical since important objects might be hidden in the sacrificed part of the scene. In this paper we compare the dynamic capabilities of some image sensors utilizing a visual tool. The comparison is based on the use case, common in surveillance, where low contrast objects may appear in any part of a scene that through its uneven illumination, span a high dynamic range. The investigation is based on real sensor data that has been measured in our lab and a synthetic test scene is used to mimic the low contrast objects. With this technique it is possible to compare sensors with different intrinsic dynamic properties as well as some capture techniques used to create an effect of increased dynamic range. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
dynamic range, security camera, contrast, image sensor
in
Sensors, Cameras, and Systems for Industrial and Scientific Applications XIII
volume
8298
publisher
SPIE
conference name
Conference on Sensors, Cameras, and Systems for Industrial and Scientific Applications XIII
external identifiers
  • wos:000302533800030
  • scopus:84875862290
ISSN
0277-786X
1996-756X
DOI
10.1117/12.908122
language
English
LU publication?
yes
id
cb353de2-713d-402a-8529-b39a3121d700 (old id 2571490)
date added to LUP
2012-06-04 11:14:27
date last changed
2017-11-20 15:05:51
@inproceedings{cb353de2-713d-402a-8529-b39a3121d700,
  abstract     = {The dynamic range is an important quantity used to describe an image sensor. Wide/High/Extended dynamic range is often brought forward as an important feature to compare one device to another. The dynamic range of an image sensor is normally given as a single number, which is often insufficient since a single number will not fully describe the dynamic capabilities of the sensor. A camera is ideally based on a sensor that can cope with the dynamic range of the scene. Otherwise it has to sacrifice some part of the available data. For a security camera the latter may be critical since important objects might be hidden in the sacrificed part of the scene. In this paper we compare the dynamic capabilities of some image sensors utilizing a visual tool. The comparison is based on the use case, common in surveillance, where low contrast objects may appear in any part of a scene that through its uneven illumination, span a high dynamic range. The investigation is based on real sensor data that has been measured in our lab and a synthetic test scene is used to mimic the low contrast objects. With this technique it is possible to compare sensors with different intrinsic dynamic properties as well as some capture techniques used to create an effect of increased dynamic range.},
  author       = {Johannesson-Andersson, Kerstin},
  booktitle    = {Sensors, Cameras, and Systems for Industrial and Scientific Applications XIII},
  issn         = {0277-786X},
  keyword      = {dynamic range,security camera,contrast,image sensor},
  language     = {eng},
  publisher    = {SPIE},
  title        = {On image sensor dynamic range utilized by security cameras},
  url          = {http://dx.doi.org/10.1117/12.908122},
  volume       = {8298},
  year         = {2012},
}