January 2005 | Technical Memorandum NTIA TM-05-417
Video scaling estimation technique
Cite This Publication
Margaret H. Pinson and Stephen Wolf, “Video scaling estimation technique,” Technical Memorandum NTIA TM-05-417, U.S. Department of Commerce, National Telecommunications and Information Administration, Institute for Telecommunication Sciences, January 2005.
Margaret H. Pinson 
and Stephen Wolf
Abstract:
Digital video compression algorithms are being deployed that spatially stretch or shrink the video picture. Although small changes in spatial scaling are not usually noticeable to viewers, objective video quality measurement systems may be adversely impacted if the spatial scaling is not corrected. This report describes an algorithm that can be used to automatically measure the amount of spatial scaling present in a video system. This algorithm obtains satisfactory computational complexity by (1) separating the searches for horizontal & vertical scaling factors, (2) using image profiles rather than full images, and (3) using random rather than exhaustive searching techniques.
Keywords: video quality; objective; calibration; random search; spatial scaling
For technical information concerning this report, contact:
Margaret H. Pinson
Institute for Telecommunication Sciences
(720) 601-7314
mpinson@ntia.gov
For funding information concerning this report, click this link.
Funding Information
Performing Agency
Disclaimer:
Certain commercial equipment, components, and software may be identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses.
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