Konstantin Kozhemyakov

ORCID: 0009-0007-0605-2214
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About
Contact & Profiles
Research Areas
  • Advanced Image Processing Techniques
  • Image and Video Quality Assessment
  • Visual Attention and Saliency Detection
  • Advanced Vision and Imaging
  • Image Processing Techniques and Applications
  • Advanced Optical Imaging Technologies

Lomonosov Moscow State University
2020

A main goal in developing video-compression algorithms is to enhance human-perceived visual quality while maintaining file size. But modern video-analysis efforts such as detection and recognition, which are integral video surveillance autonomous vehicles, involve so much data that they necessitate machine-vision processing with minimal human intervention. In cases, the codec must be optimized for machine vision. This paper explores effects of compression on recognition (objects, faces,...

10.48550/arxiv.2411.06776 preprint EN arXiv (Cornell University) 2024-11-11

Shooting video in 3D format can introduce stereoscopic artifacts, potentially causing viewers visual discomfort. In this work, we consider three common artifacts: color mismatch, sharpness and geometric distortion. This paper introduces two neural-network-based methods for simultaneous color- sharpness-mismatch estimation, as well estimating distortions. To train these networks prepared large datasets based on frames from full-length movies compared the results with that previously served...

10.1109/ic3d51119.2020.9376385 article EN 2020-12-15

In this work we present a large-scale analysis of stereoscopic quality for 1,000 VR180 YouTube videos. is new S3D format VR devices which stores the view only single hemisphere. Instead multi-camera rig, requires just two cameras with fisheye lenses similar to conventional 3D-shooting, resulting in cost reduction final device and simplification shooting process. But as format, videos suffer from stereoscopyrelated problems specific 3D shooting. paper analyze detect most common artifacts...

10.2352/issn.2470-1173.2021.2.sda-350 article EN Electronic Imaging 2021-01-18
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