Reducing image pattern noise.

Started 3 months ago | Discussions thread
ForumParentFirstPreviousNextNext unread
Flat view
Charles Ramsey
Junior MemberPosts: 26
Like?
Reducing image pattern noise.
3 months ago

The spooks have come up with a method of identifying which camera an image came from using what they call image pattern noise. Each camera when photographing a neutral color background will have a slightly different color in each pixel. The foveon sensor is a bit more complex that the bayer pattern. Image pattern noise can be caused by minute differances in the placement of pickup wires in the sensor. This will make each pickup wire have a slightly different wavelenght it is most sensitive to. These could be corrected in software. This is simular to the lens mapping used by Hassleblad and others. Since the foveon sensor has three pickups per pixel site it has a bit more color noise than the bayer sensor.

ForumParentFirstPreviousNextNext unread
Flat view
ForumParentFirstPreviousNextNext unread
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark post MMy threads
Color scheme? Blue / Yellow