IR Camera
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United States of America Patent
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N/A
Issued Date -
Oct 5, 2006
app pub date -
Apr 5, 2005
filing date -
Apr 5, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An IR camera (1) for use within a predetermined scene temperature range comprises a focal plane array (7), and a signal processing device (9) arranged to receive an incoming signal from pixels of the focal plane array (7). The signal processing device (9) is arranged, for each image, to perform the following steps; identify any pixels of the focal plane array (7) for which the incoming signal, anywhere inside the scene temperature range, is equal to or larger than the predetermined maximum value, or equal to or less than the predetermined minimum value, replace the value of each element thus identified with a replacement value based on the value of at least one neighbouring element. By performing this in real time instead of permanently disabling any element that reaches the maximum or minimum value within the scene temperature range of the camera, the quality of the image is improved.
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