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AssigneeHonda Giken Koygo Kabushiki Kaisha
InventorsSukeyuki Shinotsuka, Katsuhiko Takebe, Toshiaki Tanaka, Toshio Imai
Estimating the term…
A photosensor signal processing apparatus is used in combination with an image sensor comprised of a matrix of pixels or photosensors capable of producing an output as a linear function and a logarithmic function of incident illumination. The apparatus includes a correction data storage device which stores therein a set of data about the respective photosensors for the correction of individual outputs of the photosensors, and a correcting device for correcting the respective output values of the photosensors on the basis of the correction data. Thus, even when the individual outputs of the photosensors generate have different characteristics, the output characteristic variation between the photosensors are corrected such that the output characteristics of all the photosensors agree with a reference output characteristic. A fixed pattern noise resulting from the pixel-to-pixel output characteristic variation can be suppressed.
A photosensor signal processing apparatus for suppressing a fixed pattern noise resulting from variations in output characteristics between photosensors of an image sensor, each of the photosensors having a linear function region in which sensor output varies linearly with incident illumination, the photosensor signal processing apparatus comprising:
Dependencies are inferred from the claim text.