This article presents an investigation of the impact of camera warm-up on the image acquisition process and therefore on the accuracy of segmented image features. Based on an experimental study we show that the camera image is shifted to an extent of some tenth of a pixel after camera start-up. The drift correlates with the temperature of the sensor board and stops when the camera reaches its thermal equilibrium. A further study of the observed image flow shows that it originates from a slight displacement of the image sensor due to thermal expansion of the mechanical components of the camera. This sensor displacement can be modeled using standard methods of projective geometry in addition with bi-exponential decay terms to model the temporal dependence. The parameters of the proposed model can be calibrated and then used to compensate warm-up effects. Further experimental studies show that our method is applicable to different types of cameras and that the warm-up behaviour is characteristic for a specific camera.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Analyzing the Influences of Camera Warm-Up Effects on Image Acquisition


    Contributors:

    Conference:

    Asian Conference on Computer Vision ; 2007 ; Tokyo, Japan November 18, 2007 - November 22, 2007


    Published in:

    Computer Vision – ACCV 2007 ; Chapter : 26 ; 258-268


    Publication date :

    2007-01-01


    Size :

    11 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English





    THERMAL IMAGE ACQUISITION DEVICE AND WARM/COLD FEELING ESTIMATION DEVICE

    NOSAKA KENICHIRO / KUSUKAME KOICHI / YONEDA AKI et al. | European Patent Office | 2018

    Free access

    Camera for underwater image data acquisition

    European Patent Office | 2020

    Free access

    SI engine warm-up:Water and lubricating oil temperature influences

    Andrews,G.E. / Harris,J.R. / Ounzain,A. | Automotive engineering | 1989


    Warm Pressurant Effects on the Bubble Point for Cryogenic Liquid Acquisition Devices

    Hartwig, Jason W. / McQuillen, John B. / Chato, David J. | AIAA | 2015