Fast Image and Video Resolution Upscaling

Preserves sharp edges in enlarged images (Converts DVD to HD)

• Image upscaling, or enlargement of image size, results in blurring of edges and loss of image quality
• Although digital cameras produce high-resolution images, there still exist huge numbers of low resolution images as well as low-grade sensors found in mobile devices and surveillance systems that produce low-resolution images and video frames that require resolution enhancement.

Our Innovation

New image processing algorithm based on example-based super-resolution that results in a high-quality and efficient single-image upscaling technique

Image upsampling exploits local scale-similarity in natural images. When downscaled, the patches (yellow squares) are very similar to their cropped version (red squares).

Image upsampling exploits local scale-similarity in natural images. When downscaled, the patches (yellow squares) are very similar to their cropped version (red squares).

Key Features

• Algorithm produces high-quality, sharp images
• Reduces the process search time without compromising quality
• Simple, efficient, and trivially parallel algorithm enables increase in the resolution of video sequences with no algorithmic modifications and at reasonable running times

The Opportunity

Can be employed with any image editing software as well as software for adapting videos to new HD standards

Article

www.yissum.co.il/sites/default/files/project_images/Articles/2370_-_upscaling.pdf

Project manager

Anna Pellivert
VP, BUSINESS DEVELOPMENT

Project researchers

Raanan Fattal
HUJI, School of Computer Science and Engineering
Computer Science

Gilad Freedman
HUJI, School of Computer Science and Engineering