On last.fm: Taylor Swift photos and free music!
BNET Business Network:
BNET
TechRepublic
ZDNet

FREE Registration is required

Overview:

This paper describes a novel and robust feature descriptor called Ordinal Spatial Intensity Distribution (OSID) which is invariant to any monotonically increasing brightness changes. Many traditional features are invariant to intensity shift or affine brightness changes but cannot handle more complex nonlinear brightness changes, which often occur due to the nonlinear camera response, variations in capture device parameters, temporal changes in the illumination, and viewpoint-dependent illumination and shadowing. A configuration of spatial patch sub-divisions is defined, and the descriptor is obtained by computing a 2-D histogram in the intensity ordering and spatial sub-division spaces. Extensive experiments show that the proposed descriptor significantly outperforms many state-of-the-art descriptors such as SIFT, GLOH, and PCA-SIFT under complex brightness changes.

(Is this item miscategorized? Does it need more tags? Let us know.)

Format:PDFSize:5,089 KB
Date:Apr 2009
Pages:17

Top results from 3D Modeling and Rendering

White Paper The Design of the OpenGL Graphics Interface
White Paper The Future of Cluster Computing
White Paper Accessing Oracle Spatial Data with Autodesk Map 3D
White Paper A Guided Tour of Windows Presentation Foundation
Webcast Streamline to Success: The Real Mid-Market Experience: Life Sciences

» View all 3D Modeling and Rendering listings

Top results from Software Engineering

White Paper Practical Approaches for Securing Web Applications across the Software Delivery Lifecycle
White Paper CRM Media - Best Practices: Software-as-a-Service
White Paper Social CRM Comes of Age
White Paper Retailers' Response to the Global Economy Downturn — Enabling Immersive Shopping Experiences
Webcast On Demand Webcast: A Smarter way to Successful SOA - Information as a trusted strategic asset

» View all Software Engineering listings

advertisement

White Papers, Webcasts, and Resources

Featured Training Courses

SmartPlanet

Click Here

Returning users: Log In Here!

Already registered on BNET, TechRepublic, or ZDNet? Simply log in.

Free Membership: Sign Up Now!

Sign up for a free membership today and get instant and unlimited access to one of the largest databases of white papers, webcasts, and casestudies anywhere. Your FREE membership allows you to:

  • Download an unlimited amount of content, including classic and current white papers, case studies, webcasts and more
  • Track content on your chosen topics of interest
  • Receive targeted email alerts when your favorite content is added
  • Save content for future reading
  • Receive our member newsletter

When you register to access this library, you allow us to share your information with companies that produce products or services featured in the library--so that such companies may contact you with information and offers regarding their products and services. This enables us to keep the library a free service. As a library registrant, you will receive a complimentary subscription to the ZDNet white paper newsletter and e-mail Must-Read News Alerts. You can unsubscribe from these at any time. By clicking the Sign up button, you indicate that you agree to our Terms and Conditions and have read and understand our Privacy Policy (updated).