English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
 
 
DownloadE-Mail
  A Perceptual Evaluation of 3D Unsharp Masking

Ihrke, M., Ritschel, T., Smith, K., Grosch, T., Myszkowski, K., & Seidel, H.-P. (2009). A Perceptual Evaluation of 3D Unsharp Masking. In B. E. Rogowitz, & T. N. Pappas (Eds.), Human Vision and Electronic Imaging XIV, IS\&T/SPIE's 21st Annual Symposium on Electronic Imaging (pp. 72400R-1-12). Bellingham, USA: SPIE.

Item is

Files

show Files
hide Files
:
TempGlareExperiment.pdf (Any fulltext), 2MB
 
File Permalink:
-
Name:
TempGlareExperiment.pdf
Description:
-
OA-Status:
Visibility:
Private
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Ihrke, Matthias1, Author           
Ritschel, Tobias1, Author           
Smith, Kaleigh1, Author           
Grosch, Thorsten1, Author           
Myszkowski, Karol1, Author           
Seidel, Hans-Peter1, Author           
Affiliations:
1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              

Content

show
hide
Free keywords: -
 Abstract: Much research has gone into developing methods for enhancing the contrast of displayed 3D scenes. In the current study, we investigated the perceptual impact of an algorithm recently proposed by Ritschel et al.1 that provides a general technique for enhancing the perceived contrast in synthesized scenes. Their algorithm extends traditional image-based Unsharp Masking to a 3D scene, achieving a scene-coherent enhancement. We conducted a standardized perceptual experiment to test the proposition that a 3D unsharp enhanced scene was superior to the original scene in terms of perceived contrast and preference. Furthermore, the impact of different settings of the algorithm’s main parameters enhancement-strength (¸) and gradient size (¾) were studied in order to provide an estimate of a reasonable parameter space for the method. All participants preferred a clearly visible enhancement over the original, non-enhanced scenes and the setting for objectionable enhancement was far above the preferred settings. The effect of the gradient size ¾ was negligible. The general pattern found for the parameters provides a useful guideline for designers when making use of 3D Unsharp Masking: as a rule of thumb they can easily determine the strength for which they start to perceive an enhancement and use twice this value for a good effect. Since the value for objectionable results was twice as large again, artifacts should not impose restrictions on the applicability of this rule.

Details

show
hide
Language(s): eng - English
 Dates: 2010-02-092009
 Publication Status: Issued
 Pages: -
 Publishing info: Bellingham, USA : SPIE
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 520494
DOI: doi:10.1117/12.809026
Other: Local-ID: C125675300671F7B-5AB79508CF9875C4C125755C0035BB4C-Ihrke2009SPIE
 Degree: -

Event

show
hide
Title: Untitled Event
Place of Event: San Jose, USA
Start-/End Date: 2009-01-19 - 2009-01-22

Legal Case

show

Project information

show

Source 1

show
hide
Title: Human Vision and Electronic Imaging XIV, IS\&T/SPIE's 21st Annual Symposium on Electronic Imaging
Source Genre: Proceedings
 Creator(s):
Rogowitz, Bernice E., Editor
Pappas, Thrasyvoulos N., Editor
Affiliations:
-
Publ. Info: Bellingham, USA : SPIE
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 72400R - 1-12 Identifier: -

Source 2

show
hide
Title: Annual Symposium on Electronic Imaging
Source Genre: Series
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -