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ICCV
2011
IEEE
14 years 6 months ago
Informative Feature Selection for Object Recognition via Sparse PCA
Bag-of-words (BoW) methods are a popular class of object recognition methods that use image features (e.g., SIFT) to form visual dictionaries and subsequent histogram vectors to r...
Nikhil Naikal, Allen Y. Yang, S. Shankar Sastry
IWDW
2007
Springer
16 years 27 days ago
Dither Modulation in the Logarithmic Domain
Abstract. Scaling attacks are well-known to be some of the most harmful strategies against quantization-based watermarking methods, as they desynchronize the decoder, completely ru...
Pedro Comesaña, Fernando Pérez-Gonz&...
ICMCS
2006
IEEE
113views Multimedia» more  ICMCS 2006»
16 years 23 days ago
Multi-View Video Coding using View Interpolation and Reference Picture Selection
We propose a new multi-view video coding method using adaptive selection of motion/disparity compensation based on H.264/AVC. One of the key points of the proposed method is the u...
Masaki Kitahara, Hideaki Kimata, Shinya Shimizu, K...
ICIAR
2004
Springer
16 years 3 days ago
Visual Cortex Frontend: Integrating Lines, Edges, Keypoints, and Disparity
Abstract. We present a 3D representation that is based on the processing in the visual cortex by simple, complex and end-stopped cells. We improved multiscale methods for line/edge...
João Rodrigues, J. M. Hans du Buf
IH
2004
Springer
16 years 3 days ago
Exploiting Preserved Statistics for Steganalysis
We introduce a steganalytic method which takes advantage of statistics that were preserved to prevent the chi-square attack. We show that preserving statistics by skipping certain ...
Rainer Böhme, Andreas Westfeld