PERFORMANCE ANALYSIS OF LATVIAN ZENITH CAMERA

Lexicon-based Morphological Analysis of Latvian Language

This paper describes a practical solution for lexicon-based morphological analysis of Latvian language. As it is a flexive language, the core of this system is an implementation of word inflection based on a stem and its properties as listed in the lexicon. The main advantage of the described solution over similar implementations is augmenting the lexicon with methods for word derivation from r...

Lytro camera technology: theory, algorithms, performance analysis

The Lytro camera is the first implementation of a plenoptic camera for the consumer market. We consider it a successful example of the miniaturization aided by the increase in computational power characterizing mobile computational photography. The plenoptic camera approach to radiance capture uses a microlens array as an imaging system focused on the focal plane of the main camera lens. This p...

RAW camera DPCM compression performance analysis

The MIPI standard has adopted DPCM compression for RAW data images streamed from mobile cameras. This DPCM is line based and uses either a simple 1 or 2 pixel predictor. Due to its simplicity, the 1-pixel DPCM predictor has been almost exclusively used in the industry and is of interest of our investigation. The importance of evaluating image quality deterioration due to DPCM compression is fur...

Determination of Astro-Geodetic Vertical Deflections using Digital Zenith Camera System in Istanbul, Turkey

An alternative mathematical modeling of the scintillation camera and framework for performance analysis of gamma-ray positioning algorithms

Introduction: Substantive amount of work has been done in modeling and analyzing the scintillation camera system processes including positioning and image formation. The goal of this work is to develop a framework for analyzing performance of nonlinear positioning methods upon construction of a mathematical model of the system. In this study, the photodetector array counts are ...