Systems and methods for assessing a document using cross-correlation analysis

• US 20040223637A1
• Filed: 12/19/2003
• Published: 11/11/2004
• Est. Priority Date: 03/15/2002
• Status: Active Grant

• Current Assignee: Computer Sciences Corporation (DXC Technology Company)
• Original Assignee: Computer Sciences Corporation (DXC Technology Company)
• Inventors: Bakker, Ronny, Mason, James G., Blinova, Katerina, Berkhuysen, Johan Willem Piere, Shridhar, Malayappan, Nugmanov, Babur, Houle, Gilles
• Granted Patent: US 7,555,162 B2
• Time in Patent Office: Days
• US Class Current: 382/137
• CPC Class Codes: G06V 30/10 Character recognition
• CPC Class Codes: G06V 30/133 Evaluation of quality of the acquired characters
• CPC Class Codes: G06V 30/274 Syntactic or semantic context, e.g. balancing
• CPC Class Codes: G06V 40/30 Writer recognition; Reading and verifying signatures

Abstract

Methods and systems are provided for analyzing and assessing documents using a writing profile for documents, such as a payment instrument. A method may include providing a document to a computer system. In some embodiments, the method may further include obtaining information on writing in an information field of the document. In certain embodiments, the obtained written information in the information field and written information in at least one other information field may be compared to at least one writing profile representation. The writing profile representation may be obtained from at least one other document. In one embodiment, at least one of the writing profile representations may include written information from the information field and written information from at least one of the other information fields obtained from at least one of the other documents. In some embodiments, the comparisons may be used to verify the obtained written information.

Claims

1-100. -100. (cancelled)

101. A method of assessing a document using a computer system, comprising:

providing the document to the computer system, wherein the document comprises at least two information fields; and

comparing handwriting in at least two information fields of the document to at least one handwriting profile representation from at least one information field of at least one other document.

102. The method of claim 101, wherein providing the document to the computer system comprises providing images of the document to the computer system.

103. The method of claim 101, further comprising assessing fraud in the document using at least one of the comparisons.

104. The method of claim 101, wherein comparing handwriting comprises comparing at least one characteristic of the handwriting.

105. The method of claim 101, further comprising assessing fraud in the document using at least two of the comparisons.

106. The method of claim 101, further comprising assessing fraud in the document using at least one of the comparisons, wherein evidence of fraud comprises a failure of at least a portion of the handwriting in at least two of the information fields of the document to approximately match at least one handwriting profile representation.

107. The method of claim 101, further comprising assessing fraud in the document using at least two of the comparisons, wherein evidence of fraud comprises a failure of at least a portion of the handwriting in at least one of the information fields of the document to approximately match at least one handwriting profile representation.

108. The method of claim 101, wherein at least one handwriting profile representation is obtained from a valid document.

109. The method of claim 101, further comprising comparing handwriting at least two information fields of the document to at least two handwriting profile representations obtained from at least one information field of at least one other document.

110. The method of claim 101, wherein the document comprises at least two information fields, and further comprising comparing handwriting in at least two information fields of the document to at least one handwriting profile representation obtained from at least two information fields of at least one other document.

111. The method of claim 101, wherein the document comprises at least two information fields, and further comprising comparing handwriting in at least two information fields of the document to at least two handwriting profile representations obtained from at least two information fields of at least one other document.

112. The method of claim 101, wherein at least one of the documents comprises a payment instrument, and wherein the handwriting is handwriting from at least one account owner of an account of the payment instrument.

113. The method of claim 101, wherein providing the document to the computer system comprises obtaining images of handwriting of at least one information field.

114. The method of claim 101, wherein the handwriting from at least one information field comprises an image.

115. The method of claim 101, further comprising creating a mathematical representation of the handwriting in at least one information field.

116. The method of claim 101, wherein the handwriting comprises at least one image.

117. The method of claim 101, wherein the handwriting comprises at least one type of handwritten information.

118. The method of claim 101, wherein the handwriting comprises at least one type of handwritten information, and wherein at least one type of handwritten information comprises a word type.

119. The method of claim 101, wherein the handwriting comprises at least one type of handwritten information, and wherein at least one type of handwritten information comprises a character type.

120. The method of claim 101, wherein the handwriting comprises at least one global feature of the handwriting.

121. The method of claim 101, wherein the handwriting comprises at least one local feature of the handwriting.

122. The method of claim 101, wherein the handwriting comprises at least one syntax pattern.

123. The method of claim 101, wherein the handwriting comprises at least one lexicon name for at least one information field.

124. The method of claim 101, wherein at least one handwriting profile representation comprises at least one mathematical representation.

125. The method of claim 101, wherein at least one handwriting profile representation comprises at least one image.

126. The method of claim 101, wherein at least one handwriting profile representation comprises at least one type of handwritten information.

127. The method of claim 101, wherein at least one handwriting profile representation comprises at least one handwriting variant of an example of at least one type of handwritten information.

128. The method of claim 101, wherein at least one handwriting profile representation comprises at least one handwriting variant of an example of at least one type of handwritten information, and wherein at least one type of handwritten information comprises a word type.

129. The method of claim 101, wherein at least one handwriting profile representation comprises at least one handwriting variant of an example of at least one type of handwritten information, and wherein at least one type of handwritten information comprises a character type.

130. The method of claim 101, wherein at least one handwriting profile representation comprises at least one handwriting variant of an example of at least one type of handwritten information, and further comprising determining at least one of the variants with a cluster algorithm.

131. The method of claim 101, wherein at least one handwriting profile representation comprises at least one global characteristic of the handwriting.

132. The method of claim 101, wherein at least one handwriting profile representation comprises at least one local characteristic of the handwriting.

133. The method of claim 101, wherein at least one handwriting profile representation comprises at least one variant of a syntax pattern.

134. The method of claim 101, wherein at least one handwriting profile representation comprises at least one lexicon name for at least one information field.

135. The method of claim 101, wherein handwriting in at least one of the information fields of the document comprises at least two examples of a type of handwritten information, and further comprising comparing at least two of the examples to assess whether two or more of the examples approximately match.

136. The method of claim 101, wherein at least two information fields of the document comprise at least one example of a type of handwritten information, and further comprising comparing at least two of the examples in at least two of the information fields to assess whether two or more of the examples approximately match.

137. A system, comprising:

a CPU;

a data memory coupled to the CPU; and

a system memory coupled to the CPU, wherein the system memory is configured to store one or more computer programs executable by the CPU, and wherein the computer programs are executable to implement a method for generating a handwriting profile, the method comprising;

providing a document to the computer system, wherein the document comprises at least two information fields; and

comparing handwriting in at least two information fields of the document to at least one handwriting profile representation from at least one information field of at least one other document.

138. The system of claim 137, further comprising assessing fraud in the document using at least one of the comparisons.

139. The system of claim 137, further comprising comparing handwriting at least two information fields of the document to at least two handwriting profile representations obtained from at least one information field of at least one other document.

140. The system of claim 137, wherein the document comprises at least two information fields, and further comprising comparing handwriting in at least two information fields of the document to at least one handwriting profile representation obtained from at least two information fields of at least one other document.

141. The system of claim 137, wherein the document comprises at least two information fields, and further comprising comparing handwriting in at least two information fields of the document to at least two handwriting profile representations obtained from at least two information fields of at least one other document.

142. A carrier medium comprising program instructions, wherein the program instructions are computer-executable to implement a method of assessing a document, the method comprising:

providing the document to the computer system, wherein the document comprises at least two information fields; and

comparing handwriting in at least two information fields of the document to at least one handwriting profile representation from at least one information field of at least one other document.

143. The carrier medium of claim 142, further comprising assessing fraud in the document using at least one of the comparisons.

144. The carrier medium of claim 142, further comprising comparing handwriting in at least two information fields of the document to at least two handwriting profile representations obtained from at least one information field of at least one other document.

145. The carrier medium of claim 142, wherein the document comprises at least two information fields, and further comprising comparing handwriting in at least two information fields of the document to at least one handwriting profile representation obtained from at least two information fields of at least one other document.

146. The carrier medium of claim 142, wherein the document comprises at least two information fields, and further comprising comparing handwriting in at least two information fields of the document to at least two handwriting profile representations obtained from at least two information fields of at least one other document.

147. A method of assessing a document using a computer system, comprising:

providing the document to the computer system, wherein the document comprises at least one information field; and

comparing handwriting in at least one information field of the document to at least one handwriting profile representation from at least two information fields of at least one other document.

148-182. -182. (cancelled)

183. A system, comprising:

a CPU;

a data memory coupled to the CPU; and

a system memory coupled to the CPU, wherein the system memory is configured to store one or more computer programs executable by the CPU, and wherein the computer programs are executable to implement a method for generating a handwriting profile, the method comprising;

providing a document to the computer system, wherein the document comprises at least one information field; and

comparing handwriting in at least one of the information fields of the document to at least one handwriting profile representation from at least two information fields of at least one other document.

184-187. -187. (cancelled)

188. A carrier medium comprising program instructions, wherein the program instructions are computer-executable to implement a method for generating a handwriting profile, the method comprising:

providing a document to the computer system, wherein the document comprises at least one information field; and

comparing handwriting in at least one of the information fields of the document to at least one handwriting profile representation from at least two information fields of at least one other document.

189-192. -192. (cancelled)

193. A method of assessing a document using a computer system, comprising:

providing the document to the computer system, wherein the document comprises at least one information field; and

comparing handwriting in at least one information field of the document to at least two handwriting profile representations from at least one information field of at least one other document.

194-228. -228. (cancelled)

229. A system, comprising:

a CPU;

a data memory coupled to the CPU; and

a system memory coupled to the CPU, wherein the system memory is configured to store one or more computer programs executable by the CPU, and wherein the computer programs are executable to implement a method of assessing a document, the method comprising;

providing the document to the computer system, wherein the document comprises at least one information field; and

comparing handwriting in at least one information field of the document to at least two handwriting profile representations from at least one information field of at least one other document.

230-233. -233. (cancelled)

234. A carrier medium comprising program instructions, wherein the program instructions are computer-executable to implement a method of assessing a document, the method comprising:

providing the document to the computer system, wherein the document comprises at least one information field; and

comparing handwriting in at least one information fields of the document to at least two handwriting profile representations from at least one information field of at least one other document.

235-1092. -1092. (cancelled)