07619664 is referenced by 4 patents and cites 20 patents.

A digital image capture apparatus is provided which is arranged to capture at least two images of a document and combine the images to produce a final image in which the effects of specular reflection and/or ambient light are removed. The apparatus includes a light source and a first image is captured with the source illuminating the document. A second ambient image is captured with the light source switched off, and the images are combined either by subtracting the ambient image from the first image or by replacing areas of the first image by corresponding areas of the ambient image.

Title
Digital image capture apparatus and method for obtaining a digital image of an object
Application Number
11/248156
Publication Number
7619664 (B2)
Application Date
October 13, 2005
Publication Date
November 17, 2009
Inventor
Maurizio Pilu
Bristol
GB
Stephen B Pollard
Gloucestershire
GB
Assignee
Hewlett Packard Development Company
TX, US
IPC
G06K 9/40
H04N 1/387
H04N 5/222
H04N 5/217
View Original Source