A voxel-map based architecture which lays the foundations for a 3-D graphics workstation, called the CUBE Workstation, is presented. The architecture is centered around a large cubic frame-buffer of voxels, operated on by three processors: a 9-D Geometry Processor which scan-converts geometric objects into their voxel representation, a 9-D Frame-Buffer Processor which manipulates the voxel-base...

In this paper a local Radon representation is proposed and applied to 3-D seismic data analysis. The derivation of the local Radon power spectrum is based on an extension of the relation between the global Radon transform and multi-dimensional Fourier transform to the non-stationary case. This Wigner-Radon power spectrum is closely related to the Cohen’s class of quadratic timefrequency represe...

| A VLSI architecture designed to perform real-time image compression using wavelets is described. The two basic modules of the architecture are a 2-D wavelet transform generator and a coder based on the SPIHT algorithm for lossy image compression. A folded architecture is proposed for computing the 2-D wavelet transform. The architecture uses 3 parallel computational units and 2 storage units....

One of the top tasks for video streaming, video surveillance, video conferencing and video broadcasting is a low-complexity and real-time video coding and transmission over wireless channels. Taking into account high bit error ratios, packet losses and time-varying bandwidth of wireless systems, the scalable video coding (SVC) is more preferable as compression method for wireless video transmis...

We report a tomographic diffractive microscope, which permits imaging non-labelled transparent or semi-transparent samples. Based on a combination of microholography with a tomographic illumination, our set-up creates 3-D images of the index of refraction distribution within the sample. One acquires successively interferograms, rotating the illumination (the specimen being static) and using pha...