In this article a camera-based single-image sensor is presented, that able to measure the distance of multiple object points. The experimental results show an accuracy 8,51 μm within depth range 20 mm. consists camera, whose lens upgraded with diffractive optical element (DOE). It fulfils two tasks: adding vortex point spread function (PSF) and replication PSFs predefined pattern K spots. Both,...

Computer 3D reconstruction consisting of reconstruction of 3D point clouds and images plays an important role in computer graphics, computer image processing and computer vision research. Image based 3D reconstruction includes reconstruction of single image and multiple images. Compared to obtain 3D mode by modeling software or scan tester traditionally, image-based 3D reconstruction is feature...

This is a color gure] 2. The Red and Green components of a 1D image. 3. The Red and Green components painted as surfaces in x; y; I with the inverse diiusion (across the edge) and diiusion (along the edge) directions. Original image (before sampling) Reconstruction (bilinear interpolation) Reconstruction (weighted interpolation) Enhancement Original image (before sampling) Reconstruction (bilin...

Until recently, the most widely used methods for image reconstruction were direct analytic techniques. Iterative techniques, although computationally much more intensive, produce improved images (principally arising from more accurate modeling of the acquired projection data), enabling these techniques to replace analytic techniques not only in research settings but also in the clinic. This art...

An image super resolution reconstruction method was used to improve the spatial resolution of the thick pinhole imaging system and to mitigate the limitations of the image spatial resolution of the hardware of the image diagnostic system. The thick pinhole is usually applied into the diagnostics of the high energy neutron radiation image. Due to the impacts among its energy flux, spatial resolu...

A new adaptive regression type of image destriping method is introduced to reconstruct missing lines in mul-tispectral images. The method uses available information from the failed pixel surrounding due to spectral and spatial correlation of multispectral data. The reconstruction is based on two mutually competing adaptive regression models from which the locally optimal predictor is selected.

Electrical capacitance tomography (ECT) is used to obtain information about the distribution of a mixture of dielectric materials inside a vessel or pipe. ECT has several advantages over other reconstruction algorithms and has found many applications in the industrial fields. However, there are some difficulties with image reconstruction in ECT: The relationship between the permittivity distrib...