We propose an extension of the path integral formulation amenable to the expression of volumetric light transport with photon beam estimates. Our main contribution is a generalization of Hachisuka et al.’s extended path space formulation [HPJ12] to light transport in participating media. Our formulation supports various pointand beam-based volumetric density estimators, unifying them with path ...

This paper presents a framework for preventing both selfishness and denial-of-service attacks in peer-to-peer media streaming systems. Our framework, called Oversight, achieves prevention of these undesirable activities by running a separate peer-to-peer download rate enforcement protocol along with the underlying peer-to-peer media streaming protocol. This separate Oversight protocol enforces ...

Media reporting on suicide may have harmful and/or protective effects on deaths by suicide, depending on the nature of the coverage. Canada's first forum on this important issue was held in Toronto on November 6, 2015. Participating in the forum were public health policy-makers, mental health and suicide prevention experts and senior media representatives. This commentary summarizes the content...

We propose a new approach to capture the volumetric density of dynamic scattering media instantaneously with a single image. The volume is probed with a set of laser lines and the scattered intensity is recorded by a conventional camera. We then determine the density along the laser lines taking the scattering properties of the media into account. A specialized approximation technique reconstru...

This paper presents a real-time method to realistically render dynamic participating media under changing lighting conditions. In order to cope with performance requirements, the volume is built of instances of particle blocks. The simulation and rendering happen on two levels, on the block level and on the volume level. On the volume level blocks are replaced by depth impostors, which allows f...

This paper presents a cost-effective peer-to-peer (P2P) architecture for large-scale on-demand media streaming, named BitVampire. BitVampire’s primary design goal is to aggregate peers’ storage and upstream bandwidth to facilitate on-demand media streaming. To achieve this goal, BitVampire splits published videos into segments and distributes them to different peers. When a peer (or a receiver)...

Human sperm assay (HSA) is a preferred in house quality control and proficiency test (PT) practiced in fertility laboratories. HSA is performed over varying durations, apparently without following set criteria. To better understand the assay time required for reprotoxicity testing in embryo culture media, we compared American-Association-of-Bioanalysts-(AAB-) administered HSA data to our own as...

Peer-to-peer (P2P) systems are gaining increasing attention in research as well as industrial communities. In this paper, we propose a new model for on-demand media streaming centered around the P2P paradigm. The proposed P2P model can support a large number of clients with a modest overall system cost. The P2P model allows for peers to share some of their resources with the system and in retur...