A high sensitivity, single chip, low light level imaging device is
provided. The imaging device of the present invention utilizes sparse
color sampling, to maximize the luminance information gathered. In
particular, color information is gathered by a small proportion of the
pixels included in an image sensor, while the remaining pixels operate at
full spectrum sensitivity. The present invention allows the correct hue
of objects to be determined, while providing high sensitivity to
available luminance information in a scene. The imaging device can
include a global near infrared blocking filter that can be selectively
placed in the optical path of the device. In addition or alternatively,
opaque pixels may be included in the image sensor to correct for errors
caused by charge diffusion.