9780387244242 | Springer-Verlag New York Inc, December 1, 2005, cover price $169.00 | About this edition: Human Identification Based on Gait is the first book to address gait as a biometric.

9781441937421 | Springer Verlag, October 9, 2011, cover price $169.00 | About this edition: Human Identification Based on Gait is the first book to address gait as a biometric.

9783540403029 | Springer-Verlag New York Inc, June 1, 2003, cover price $189.00

9780123725387, titled "Feature Extraction & Image Processing" | 2 edition (Academic Pr, January 8, 2008), cover price $81.95 | About this edition: Whilst other books cover a broad range of topics, Feature Extraction and Image Processing takes one of the prime targets of applied computer vision, feature extraction, and uses it to provide an essential guide to the implementation of image processing and computer vision techniques.

9780750650786 | Newnes, March 1, 2002, cover price $62.95 | About this edition: Focusing on feature extraction while also covering issues and techniques such as image acquisition, sampling theory, point operations and low-level feature extraction, the authors have a clear and coherent approach that will appeal to a wide range of students and professionals.

9780080506258 | Newnes, February 4, 2002, cover price $57.95

9780080556727 | Elsevier Science, June 29, 1905, cover price $69.95