24 Sep
Posted by jj as Multimedia
We present a vision system for the 3-D model- based tracking of unconstrained human movement. Using image sequences acquired simultaneously from multiple views, we recover the 3-D body pose at each time instant without the use of markers. The pose- recovery problem is formulated as a search problem and entails finding the pose parameters of a graphical human model whose synthesized appearance is most similar to the actual appearance of the real human in the multi-view images. The models used for this purpose are acquired from the images. We use a decomposition approach and a best-first technique to search through the high dimensional pose parameter space. A robust variant of chamfer matching is used as a fast similarity measure between synthesized and real edge images.
Read the rest of this entry »
The SNMP protocol was introduced in 1988. Overtime security had been added (1991-1992). Also several version improved versions have been published (SNMPv2[1] and SNMPv3[4]) The goal is to allow automation of network management by establishing a standard protocol supported by all network devices for configuration and monitoring.
Using SNMP enabled devices network administrators can automate the tedious and error prone task of changing the configuration of the network by using an administration interface which in turn will automatically re-configure each device on the network using SNMP. By having a unified protocol a single administration application can manage an entire network of heterogeneous devices.
Read the rest of this entry »
Texture caching systems are designed to overcome the texture budget limitations of 3D games. Only the textures required to display the current scene are held in RAM. When new textures need to appear in the scene, they are loaded from a larger and slower repository, or they are dynamically generated.
Read the rest of this entry »
For our Silverlight 1.1 example, we chose to port our Silverlight 1.0 example to 1.1. This provides a good feel for the differences between the two versions and for how to port applications from 1.0 to 1.1, and, in particular, it gives us an opportunity to see what is better about developing for 1.1. This chapter doesn’t duplicate the in-depth explanation of Chapter 7; instead, it focuses on the main differences and changes between the 1.0 and 1.1 versions of the example application, Lumos. So it is recommended that you review Chapter 7 first to get familiarity with the solution.
Read the rest of this entry »
Google Earth™ is Google’s satellite imagery-based mapping product that combines global coverage of imagery with new navigational features including integrated Google search capabilities. It is based on technology from Keyhole, a company acquired by Google in October 2004. Google Earth is a broadband mapping tool that enables users to fly from space to street level views to find geographic information, and to explore places around the world.
Read the rest of this entry »
Google Earth is a popular and widely used geographical browser. It is a standalone application that enables spatial data from a variety of sources to be displayed, explored and visually compared. Google Earth has the following important characteristics:
• Free
• Easy-to-use and intuitive user interface. Data are displayed on an interactive globe that can be rotated and zoomed to visually explore data in different regions of the world and at different spatial resolutions.
Read the rest of this entry »
Google Earth, a tool that combines satellite imagery, maps, terrain, and 3D buildings, has partnered with the United States Holocaust Memorial Museum (USHMM) to bring forth tangible proof of the devastation that is taking place in Darfur. It is a particularly good advocacy tool because it gives a clear visual representation of what is taking place in Darfur. Use this guide for tips on how to use Google Earth to move Darfur as a significant issue on your campus.
Read the rest of this entry »
Google Earth is a virtual globe program, allowing viewers to visualize data on top of displayed satellite images of the Earth’s surface. Launched in 2005 and released to the public in 2006, Google Earth fast became a household name hailed as a revolution for humanitarian development, much as Geographic Information Systems (GIS) were several decades ago. According to MapAction, “There seem at present tobe two distinct groups of humanitarian practitioners: those who are already, albeit tentatively,exploiting Google Earth and related geospatial methods in their work,and those whowill be, as soon as they see their first demonstration of its potential.” (MapAction, 2008: 9)
Read the rest of this entry »