Video enhancement workbench: An operational real-time video image processing system

Stephen R. Yool, David Van Vaclor, Kirk G. Sincdley

Research output: Contribution to journalConference articlepeer-review


Video image sequences can be exploited in real-time, giving analysts rapid access to information for military or criminal investigations. Video-rate dynamic range adjustment subdues fluctuations in image intensity, thereby assisting discrimination of small or low-contrast objects. Contrast-regulated unsharp masking enhances differentially-shadowed or otherwise low-contrast image regions. Real-time removal of localized hoispots, when combined with automatic histogram equalization, may enhance resolution of objects directly adjacent. In video imagery corrupted by zero-mean noise, real-time frame averaging can assist resolution and location of small or low-contrast objects. To maximize analyst efficiency, lengthy video sequences can by screened automatically for low-frequency, high-magnitude events. Combined zoom, roam and automatic dynamic range adjustment permit rapid analysis of facial features captured by video cameras recording crimes in progress. When trying to resolve small objects in murky seawatcr, stereo video places the moving imagery in an optimal setting for human interpretation.

Original languageEnglish (US)
Pages (from-to)99-105
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jan 12 1993
Externally publishedYes
EventApplications of Digital Image Processing XV 1992 - San Diego, United States
Duration: Jul 22 1992 → …

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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