Yissum - Research Development Company of the Hebrew University

Single Image Dehazing

Posted by Yissum - Research Development Company of the Hebrew UniversityResponsive · Innovative Products and Technologies · Israel

Summary of the technology

Single Image Dehazing
Project ID : 10-2008-2076

Yissum - Research Development Company of the Hebrew University
Yissum - Research Development Company of the Hebrew University
Yissum - Research Development Company of the Hebrew University

Description of the technology

Eliminating scattered light to enhance images from a single input

Categories

Imaging / Computer Graphics, Image Enhancement

Development Stage

Research on this project completed

Patent Status

Granted US Patent: 8,350,933

Highlights

  • Improved method for recovering haze-free contrasts in images from a single input
  • Improves images from long-distance photography or in foggy conditions
  • Improved results compared with existing techniques, such as polarization-based dehazing
  • No need for multiple images or input of weather conditions

Our Innovation

  • New method for estimating the optical transmission in hazy scenes with minimal input requirements, a single image. Haze-free contrasts are recovered by using the optical transmission estimate to eliminate scattered light. The color of the haze is automatically estimated. The reliable transmission estimation produced enables extraction of scene dept.

Key Features

  • Can cope with images containing multiple layers of haze depth
  • Applications in aerial and underwater photography
  • May use the predicted transmission function to simulate a denser medium, e.g. sandstorm
  • May use results to produce novel view synthesis and image refocusing

Development Milestones

  • Future work includes incorporation of a deblurring mechanism regulated by the estimated transmission
  • Using blurriness data as additional information for estimating transmission function

The Opportunity

  • Haze-free long-distance or satellite images enhance cartography, and web mapping, land-use planning, archaeology, and environmental studies
  • Military and security applications
  • Improved consumer photography
For additional information: http://www.cs.huji.ac.il/~raananf/projects/defog/index.html

Project manager

Eitan Dekel
VP Business Development - Computer Science

Project researchers

Raanan Fattal
HUJI, School of Computer Science and Engineering
CS - Computer Vision

Additional information (attached documents)

Related keywords

  • Information Processing, Information System, Workflow Management
  • IT and Telematics Applications
  • Multimedia
  • Computers
  • Computer Graphics Related
  • Specialised Turnkey Systems
  • Scanning Related
  • Peripherals
  • Computer Services
  • Computer Software Market
  • Other Computer Related
  • Computer Science & Engineering
  • Image Enhancement

About Yissum - Research Development Company of the Hebrew University

Technology Transfer Office from Israel

Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. Founded in 1964 to protect and commercialize the Hebrew University’s intellectual property. Ranked among the top technology transfer companies, Yissum has registered over 8,900 patents covering 2,500 inventions; has licensed out 800 technologies and has spun-off 90 companies. Products that are based on Hebrew University technologies and were commercialized by Yissum generate today over $2 Billion in annual sales.

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