| 摘要 |
<p>The present invention concerns an infra-red camera comprising:
focusing optics (12) for gathering infra-red energy from an external scene, an uncooled infrared sensor (14) comprising an array of pixels, arranged to detect said infra red energy from said focusing optics (12), and a high pass filter associated with said infra-red sensor (14), wherein
temperature measurements at said infra-red sensor (14) from said infra-red energy of said external scene are subject to an error introduced by a camera modulation transfer function for high spatial frequencies, said high pass filter being configured to overcome said error by filtering outputs of said pixel array with an inverse of the modulation transfer function of the camera.</p> |
