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Automatic Fine Alignment of Multispectral and Panchromatic Images
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020The onboard acquisition instruments of MS and Pan, sharing the same optics, cannot have parallel axes, but there is a small angle in the orbit plane. The accuracy of the geometric correction depends by the DEM used, and if the latter is too coarse with respect to the pixel size, a residual misalignment survives. A multivariate linear regression between
Arienzo A. +3 more
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Online Robust Image Alignment via Subspace Learning from Gradient Orientations
IEEE International Conference on Computer Vision, 2017Robust and efficient image alignment remains a challenging task, due to the massiveness of images, great illumination variations between images, partial occlusion and corruption.
Qingqing Zheng, Yi Wang, P. Heng
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Weakly supervised alignment of multisensor images
2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015Manifold alignment has become very popular in recent literature. Aligning data distributions prior to product generation is an appealing strategy, since it allows to provide data spaces that are more similar to each other, regardless of the subsequent use of the transformed data.
Marcos-Gonzalez, Diego +2 more
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Boresight alignment of a thermal imager
Optical Engineering, 1993A simple method has been used to boresight an IR imager. The mechanical axis is defined by a plane parallel mirror attached to a reference mechanical flange. The difference between the optical and mechanical axis was measured by a dual-band modified autocollimator.
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Robust Image Alignment for Tampering Detection
IEEE Transactions on Information Forensics and Security, 2012The widespread use of classic and newest technologies available on Internet (e.g., emails, social networks, digital repositories) has induced a growing interest on systems able to protect the visual content against malicious manipulations that could be performed during their transmission.
BATTIATO, SEBASTIANO +3 more
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Image registration by aligning entropies
Proceedings of the 2001 IEEE Computer Society Conference on Computer Vision and Pattern Recognition. CVPR 2001, 2005Maximization of mutual information is a powerful method for registering images (and other data) captured with different sensors or under varying conditions, since the technique is robust to variations in the image formation process. On the other hand, the high level of robustness allows false positives when matching over a large search space and also ...
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Absolute Localization using Image Alignment and Particle Filtering
, 2016This paper presents a vision-based technique to determine the absolute location of a UAV using real-time image to map alignment. Normalized Cross-Correlation (NCC) is used to compare images taken onboard against photographic maps of the area.
Gerald J. J. van Dalen +2 more
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Lighting Alignment for Image Sequences
2015Lighting is one of the challenges for image processing. Even though some algorithms are proposed to deal with the lighting variation for images, most of them are designed for a single image but not for image sequences. In fact, the correlation between frames can provide useful information to remove the illumination diversity, which is not available for
Jinye Peng +3 more
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A robust method for alignment of histological images
Computer Methods and Programs in Biomedicine, 2005Determination of reference points is a precondition for reconstruction of serial sections. In the case of comprehensive reconstruction work, manual extraction of the markers may be very time-consuming and may even make such reconstruction impossible. The procedure presented in this contribution allows automatic alignment of histological preparations ...
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Aligning codebooks for near duplicate image detection
Multimedia Tools and Applications, 2013The detection of near duplicate images in large databases, such as the ones of popular social networks, digital investigation archives, and surveillance systems, is an important task for a number of image forensics applications. In digital investigation, hashing techniques are commonly used to index large quantities of images for the detection of ...
BATTIATO, SEBASTIANO +3 more
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