A new salient semantics-less blob detector named the Stable Wave Detector (SWD) is suggested. The detector proved to be particularly very useful in tracking a target in a videosequence. SWD is a multiscale blob detector in the intensity image. The targets are blobs in 2D which correspond to local maxima/minima of the image intensities or positive and negative peaks in 1D. SWD belongs to a group...

In this paper, we propose a novel practical method for blob-based liquid 3D morphing. Firstly, blobby objects are employed to approximate a given polygonal surface through an energy optimization procedure so that the distance between the isosurface of blobs and the given model is minimized. The primitives in the medial axis sphere-tree of a polygonal model are utilized as initial blobs — this g...

2014 It is shown that the cross-over concentration between dilute and semi-dilute solutions is the same for dynamical properties as for static properties of flexible polymers in a good solvent. For semi-dilute solutions, the exponent 03B2 in the concentration dependence of the diffusion coefficient of a blob Dc ~ C03B2 is expected to depend on both temperature and concentration. The variation o...

Abstract Short-period comet 108P/Ciffreo is known for its peculiar double morphology, in which the nucleus accompanied by a comoving, detached, diffuse “blob.” We report new observations of taken with Hubble Space Telescope and Nordic Optical use them to determine cause this unusual morphology. The separation longevity blob across several orbits together rule out possibility single, slow-moving...

We introduce a simple and effective point descriptor, called 3D Laplacian Pyramid Signature (3DLPS), by extending and adapting the Laplacian Pyramid defined in 2D images to 3D shapes. The signature is represented as a high-dimensional feature vector recording the magnitudes of mean curvatures, which are captured through sequentially applying Laplacian of Gaussian (LOG) operators on each vertex ...

The flash-lag effect -- a misperception that a flashed object appears to lag behind a moving object despite their physical alignment -- has mainly been investigated as a spatiotemporal offset. Here, we report that the flash-lag-in-depth effect is accompanied by an illusory change in the apparent size of the flashed object. We found a strong flash-lag-in-depth effect with a dot-defined square, w...

We describe a method for estimation of 3-D geometry from 2-D blob features. Blob features are clusters of similar pixels in the image plane and can arise from similarity of color, texture, motion and other signal-based metrics. The motivation for considering such features comes from recent successes in real-time extraction and tracking of such blob features in complex cluttered scenes in which ...

Abstract Cross-field transport of particles in the boundary region magnetically confined fusion plasmas is dominated by turbulence. Blobs, intermittent turbulent structures with large amplitude and a filamentary shape appearing scrape-off layer (SOL), are known from theoretical experimental studies to be main contributor cross-field particle transport. The dynamics blobs differs depending on va...

An Insight Toolkit (ITK) processing framework for blob segmentation with applications to microscopy images is presented in this paper. Our algorithm is a refinement of the work of Mosaliganti et al. [3] for splitting cell clusters. The basic idea is to incorporate as many cues as possible into developing a suitable level-set speed function so that an evolving contour exactly segments a cell/nuc...