%0 Journal Article
%@issn 0143-1161
%T Spatial resolution estimation of CBERS-1 and CBERS-2 CCD cameras
%D 2012
%8 Jan.
%A Bensebaa, Kamel,
%A Banon, Gerald Jean Francis,
%A Fonseca, Leila Maria Garcia,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%B International Journal of Remote Sensing
%V 33
%N 2
%P 604-629
%K point spread function, sensor, camera, CCD, spatial resolution, esimation.
%X The first China-Brazil Earth Resources Satellite (CBERS-1) was launched in 1999 and was substituted in 2003 by CBERS-2. CBERS- 1 and CBERS-2 have the same specifications and carry three sensors: Wide Field Imager (WFI), High Resolution CCD Camera (CCD) and Infrared Multispectral Scanner (IRMSS). In general, the images may have a blurred appearance due to the cumulative effects of the sensor instruments and image motion produced by the satellite movement. This blurring effect can be described by the Point Spread Function (PSF) which enables an objective assessment of spatial resolution through the parameter known as EIFOV (Effective Instantaneous Field of View). Therefore, this work describes three approaches to estimate the effective spatial resolution of CBERS-CCD cameras. The first approach uses artificial target to estimate the EIFOV in across-track and along-track directions simultaneously, while the other approaches use natural targets to estimate the EIFOV in both directions separately.
%@language en
%3 DSPI_Banon_Spatial resolution.pdf