Results 341 to 350 of about 7,404,152 (394)

The method of image alignment based on sharpness maximization

International Conference on Machine Vision, 2018
In this paper the method of image alignment based on average image sharpness maximization is proposed. The algorithm for global-shift model is investigated, its efficiency by applying FFT is shown.
D. Tropin, D. Nikolaev, Dmitry Slugin
semanticscholar   +1 more source

Automatic Alignment of Gel 2D Images

2011
Proteomics has gained a wide interest in the last decade since it involves the comparative study of protein expressions to identify bio-markers for early diagnosis of unpredictable, and serious, pathologies. The most powerful techniques for protein investigation compare 2D gel electrophoresys images that represent the protein composition of healthy and
A. Rozza, S. Arca, E. Casiraghi, P. Campadelli, M. Natale, E. Bucci, P. Consoli   +6 more
openaire   +2 more sources

Array Tomography: Semiautomated Image Alignment

Cold Spring Harbor Protocols, 2010
INTRODUCTIONArray tomography is a volumetric microscopy method based on physical serial sectioning. Ultrathin sections of a plastic-embedded tissue are cut using an ultramicrotome, bonded in an ordered array to a glass coverslip, stained as desired, and imaged.
Kristina D. Micheva, Brad Busse, Nancy A. O'Rourke, Stephen J. Smith   +3 more
openaire   +3 more sources

Fast Fingerprint Image Alignment

2012
Fingerprint is one of the various modalities used in biometrics for authentication. An important issue, when designing a fingerprint–based biometric system / application is alignment of fingerprint images before feature extraction and matching. In this paper we present fingerprint alignment algorithm based on Principal Component Analysis (PCA).
Jaspreet Kour, Madasu Hanmandlu, Abdul Quaiyum Ansari   +2 more
openaire   +2 more sources

Image Alignment-Based Multi-Region Matching for Object-Level Tampering Detection

IEEE Transactions on Information Forensics and Security, 2017
Tampering detection methods based on image hashing have been widely studied with continuous advancements. However, most existing models cannot generate object-level tampering localization results, because the forensic hashes attached to the image lack ...
Chi-Man Pun, Cai-Ping Yan, Xiaochen Yuan
semanticscholar   +1 more source

Automatic Fine Alignment of Multispectral and Panchromatic Images

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
The 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., Alparone L., Aiazzi B., Garzelli A.   +3 more
openaire   +4 more sources

Image alignment for 3D reconstruction in a SEM

Microelectronics Reliability, 2005
In a previous paper [1] a procedure to extract the third dimension from back-scattered electron has been proposed. The 3D recovery process involves the acquisition of four images and the computation of surface gradients; thus, a specific algorithm finds the depth map of the given surface.
Pintus R, PODDA, SIMONA, VANZI, MASSIMO
openaire   +3 more sources

Online Robust Image Alignment via Subspace Learning from Gradient Orientations

IEEE International Conference on Computer Vision, 2017
Robust 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
semanticscholar   +1 more source

Accurate alignment of sets of images

Journal of Microscopy, 1994
SummaryTwo modifications to the conventional procedure of cross‐correlation are described, widely used for establishing the relative alignment of the members of a set of images from which a higher resolution or more interpretable restoration is sought. Both achieve a high and sharp peak in circumstances where the conventional peak is too ill defined to
openaire   +2 more sources

Weakly supervised alignment of multisensor images

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
Manifold 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, Camps-Valls, Gustau, Tuia, Devis   +2 more
openaire   +2 more sources