CASIA Offline Handwriting Databases
Application Form for Academic Research
NLPR, Institute of Automation of Chinese Academy of Sciences (CASIA)
95 Zhongguancun East Road, Beijing 100190, P.R. China
Contact: Cheng-Lin Liu (liucl@nlpr.ia.ac.cn, Fax: +86-10-62551993)
March 2011
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CASIA Offline Handwriting Databases
The CASIA offline handwriting databases were collected by the National Laboratory of Pattern Recognition (NLPR),
Institute of Automation of Chinese Academy of Sciences (CASIA) during 2007-2010. The databases contain isolated
characters and handwritten texts produced by 1,020 writers using Anoto pen. The isolated characters samples are stored
in three databases HWDB1.0~1.2, and the handwritten texts are stored in three databases HWDB2.0~2.2. There are in
total 3,895,135 character samples of 7,356 classes (7,185 Chinese characters and 171 symbols) in HWDB1.0~1.2. The
HWDB2.0~2.2 have 5,091 pages, which are segmented into 52,230 text lines and again 1,349,414 characters. All the
characters and texts are stored in gray-scale images with background eliminated. The file names are indexed by writer
numbers.
The databases are free for academic research under an agreement. Possible research tasks include handwritten
document segmentation, character recognition, text line recognition, document retrieval, writer adaptation and writer
identification. For usage, please read the following conditions carefully, fill in the application form and send back by
Fax or email (scanned PDF).
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Conditions of Use
All samples in the databases under this agreement can only be used by the group of the named applicant and can
only be used for research purpose. No samples can be used for any commercial purpose.
All usage of the database should be appropriately acknowledged. In publications, the database should be referred to
as “CASIA-HWDB”.
All applicants must submit a signed agreement (application form below) to the Institute of Automation of CAS
(CASIA).
The Institute of Automation of CAS retains the copyright of all sample data in the database.
Application Form
Name:
Organization:
Address:
City/State:
Tel:
Zipcode:
Fax:
Country:
email:
I have read the conditions of use and wish to use the databases CASIA-HWDB for research purpose under the
conditions.
(The section below must be signed by the leader of the applicant’s research group. Upon agreement, the CASIA will
send a copy of the database to the applicant, or the applicant can obtain a copy from any other users of the database.)
Name:
Position:
Signature:
Date: