We present a novel algorithm to efficiently generate high quality high dynamic range (HDR) images. Our method is based on the idea of expanding the dynamic range of a reference image at granularity of tiles. In each tile, we use data from a single exposure, but different tiles can come from different exposures. We show that this approach is not only efficient and robust against camera and objec...

Phase correlation is applied to the mosaicing of confocal scanning laser microscopy data. A large specimen (i.e., a murine heart) is cut into a number of individual sections with appropriate thickness. The sections are scanned horizontally and vertically to produce tiles of a 3D volume. Image processing based on phase correlation is used to rebuild the 3D volume and stitch the tiles together. S...

Algorithmic self-assembly, a generalization of crystal growth, has been proposed as a mechanism for bottom-up fabrication of complex nanostructures and autonomous DNA computation. In principle, growth can be programmed by designing a set of molecular tiles with binding interactions that enforce assembly rules. In practice, however, errors during assembly cause undesired products, drastically re...

This paper deals with the visual inspection of ceramic’s tiles surfaces for the purpose of detecting flaws using a wavelet approach. Surface defects in the ceramic tiles are viewed as in-homogeneities in regularity and orientation fields. To improve the homogeneity of batches received by final users and to detect manufacturing defaults, most production lines for ceramic tiles must integrate a v...

This article brings together tiles of 16th century Persian architecture and 21st century digital tiles of moving image to explore new potentials beyond the perceived image. As minimal parts of a bigger image, they both appear still and motionless. However, Persian Islamic philosopher, Mulla Sadrā Shirazi’s (1571-1640) theory of ‘substantial motion’ (al-harakat al-jawhariyya) argues that, at the...

Some high-performance imaging systems, including wide angle "monocentric" lenses made of concentric spherical shells, form a deeply curved image surface coupled to focal plane sensors by optical fiber bundles with a curved input and flat output face. However, refraction at the angled input facet limits the range of input angles, even for fiber bundles with numerical aperture 1. Here we investig...

We propose an algorithm to process images using their local information. Each image is tiled with overlapping neighborhoods. Then, each region is enhancement independently. The overlapping tiles are then seamlessly mosaicked to construct the multi-focus image. Our approach is presented for images from optical and fluorescent microscopy and demonstrates better local contrast preservation in comp...