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» Computing Robustness and Persistence for Images
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VRCAI
2006
ACM
15 years 3 months ago
Parallel-split shadow maps for large-scale virtual environments
Shadowing effects dramatically enhance the realism of virtual environments by providing useful visual cues. Shadow mapping is an efficient algorithm for real-time shadow renderin...
Fan Zhang, Hanqiu Sun, Leilei Xu, Lee Kit Lun
MM
2004
ACM
97views Multimedia» more  MM 2004»
15 years 3 months ago
Security of human video objects by incorporating a chaos-based feedback cryptographic scheme
Security of multimedia files attracts more and more attention and many encryption methods have been proposed in literature. However most cryptographic systems deal with multimedia...
Paraskevi K. Tzouveli, Klimis S. Ntalianis, Stefan...
NIPS
2008
14 years 11 months ago
Breaking Audio CAPTCHAs
CAPTCHAs are computer-generated tests that humans can pass but current computer systems cannot. CAPTCHAs provide a method for automatically distinguishing a human from a computer ...
Jennifer Tam, Jirí Simsa, Sean Hyde, Luis v...
CVPR
2007
IEEE
14 years 9 months ago
PrivacyCam: a Privacy Preserving Camera Using uCLinux on the Blackfin DSP
Considerable research work has been done in the area of surveillance and biometrics, where the goals have always been high performance, robustness in security and cost optimizatio...
Ankur Chattopadhyay, Terrance E. Boult
BMCBI
2006
108views more  BMCBI 2006»
14 years 9 months ago
Probe set algorithms: is there a rational best bet?
Affymetrix microarrays have become a standard experimental platform for studies of mRNA expression profiling. Their success is due, in part, to the multiple oligonucleotide featur...
Jinwook Seo, Eric P. Hoffman