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Anotace knihy

Asymmetric boosting, while acknowledged to be§important to state-of-the-art face detection, is§typically based on the trial-and-error practice,§rather than on principled methods. This work solves a§number of issues related to asymmetric boosting and§the use of asymmetric boosting in face detection. It§shows how a proper understanding and use of§asymmetric boosting leads to significant improvements§in the§learning time, the learning capacity, the detection§speed and the detection accuracy of a face detector.§§There are four main contributions in this book: 1) a§new method to learn online an asymmetric boosted§classifier, pioneering a new direction of online§learning a face detector; 2) a new weak classifier§learning method,§significantly reducing the learning time of a§face detector from weeks to just a few hours; 3) a§new and principled method to learn a§face detector cascade, further improving§the learning time and the detection speed of a face§detector; and 4) a theoretical analysis on the§generalization of an asymmetric boosted classifier§via bounds on the true§asymmetric error of the classifier. The work is§concluded with a discussion of future directions for§face detection.

Parametry knihy

Zařazení knihy Knihy v angličtině Computing & information technology Information technology: general issues

• Plný název: Face Detection with Asymmetric Boosting
• Podnázev: Principled Methods to Rapid Learning and Classification
• Autor: Minh-Tri Pham
• Jazyk: Angličtina
• Vazba: Brožovaná
• Počet stran: 120
• EAN: 9783639178326
• ISBN: 3639178327
• ID: 06826083
• Nakladatelství: VDM Verlag
• Hmotnost: 186 g
• Rozměry: 229 × 152 × 7 mm
• Datum vydání: 15. July 2009

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