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Ewa M. Nowara

As seen in: Communications of the ACM
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Articles by Ewa M. Nowara

Seeing Beneath the Skin with Computational Photography

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By Ewa M. Nowara, Daniel McDuff, Ashutosh Sabharwal, Ashok Veeraraghavan
| Communications of the ACM Verified
By Ewa Nowara, Daniel Mcduff, Ashutosh Sabharwal, Ashok Veeraraghavan Communications of the ACM, December 2022, Vol. 65 No. 12, Pages 90-100 10.1145/3536421 Comments View as: Print Mobile App ACM Digital Library In the Digital Edition Share: Send by email Share on reddit Share on StumbleUpon Share on Hacker News Share on Tweeter Share on Facebook From X-rays to magnetic resonance imaging (MRI), methods for scanning the body have transformed how we understand and care for our health.
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Systematic analysis of video-based pulse measurement from compressed videos

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By Ashok Veeraraghavan, Daniel McDuff, Ewa M. Nowara
| osapublishing.org
Camera-based physiological measurement enables vital signs to be captured unobtrusively without contact with the body. Remote, or imaging, photoplethysmography involves recovering peripheral blood flow from subtle variations in video pixel intensities. While the pulse signal might be easy to obtain from high quality uncompressed videos, the signal-to-noise ratio drops dramatically with video bitrate.
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