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HIP
2005
Springer
172views Cryptology» more  HIP 2005»
14 years 27 days ago
Building Segmentation Based Human-Friendly Human Interaction Proofs (HIPs)
Human interaction proofs (HIPs) have become common place on the internet due to their effectiveness in deterring automated abuse of online services intended for humans. However, th...
Kumar Chellapilla, Kevin Larson, Patrice Y. Simard...
HPCC
2005
Springer
14 years 27 days ago
Correction of Building Height Effect Using LIDAR and GPS
Abstract. Correction of building height effects is a critical step in image interpretation from aerial imagery in urban area. In this paper, an efficient scheme to correct building...
Hong-Gyoo Sohn, Kong-Hyun Yun, Gi-Hong Kim, Hyo Su...
LOCA
2005
Springer
14 years 26 days ago
The GETA Sandals: A Footprint Location Tracking System
This paper presents the design, implementation, and evaluation of a footprintbased indoor location system on traditional Japanese GETA sandals. Our footprint location system can s...
Kenji Okuda, Shun-yuan Yeh, Chon-in Wu, Keng-hao C...
RT
2005
Springer
14 years 26 days ago
Experimental Analysis of BRDF Models
The Bidirectional Reflectance Distribution Function (BRDF) describes the appearance of a material by its interaction with light at a surface point. A variety of analytical models...
Addy Ngan, Frédo Durand, Wojciech Matusik
EGH
2004
Springer
14 years 23 days ago
Realtime ray tracing of dynamic scenes on an FPGA chip
Realtime ray tracing has recently established itself as a possible alternative to the current rasterization approach for interactive 3D graphics. However, the performance of exist...
Jörg Schmittler, Sven Woop, Daniel Wagner, Wo...