When we take photos with digital cameras and view them on display devices (such as LCD monitors), we want it to be an accurate representation of the original scene. However, the camera only gives us a limited set of data that does not allow for a very accurate reconstruction of the image. We can see this by comparing the data that the camera captures with the true information that is available ...

In this paper we present a new practical camera characterization technique to improve color accuracy in high dynamic range (HDR) imaging. Camera characterization refers to the process of mapping device-dependent signals, such as digital camera RAW images, into a well-defined color space. This is a well-understood process for low dynamic range (LDR) imaging and is part of most digital cameras — ...

The comprehensive analysis of new digital airborne photogrammetric camera systems is an important topic right now. Faster than originally expected the new digital sensors phased into market and are already used in production processes. Furthermore, some national mapping agencies or system flyers have already decided to exclusively use digital imagers in future and already started to sell their ...

Unmanned Aerial Vehicle (UAV) systems offered many advantages in several mapping applications such as slope mapping, geohazard studies, etc.This study utilizes UAV system for large scale stream mapping by using digital camera attached to the UAV.The digital camera combined with the UAV form a data acquisition system. This study only concentrates on one type of rotor wing UAV. It is becaue rotor...

Choosing a camera for use in the dermatology office is difficult, particularly in the case of a digital camera because the market is constantly evolving. This article explains the features that should be taken into account, including camera type, sensor, lens and macro capability, aperture priority mode, screen, viewfinder, operating speed, flash, battery, memory card, and image format. The mos...

The Nikon Coolpix885® conventional digital camera is utilized to reform three-dimensional (3-D) turbulent pattern on lake that is situated in University Technology Malaysia (UTM). The main objective of this study is to use fuzzy arithmetic to reduce the errors arising from noise in digital camera data when constructing turbulent pattern flow. In doing so, the fuzzy B-spline algorithm, which ass...

We introduce a digital hologram generation of a real 3D object captured by a depth camera. The depth camera is employing a time multiplexed concept for color and depth image acquisition in a single chip sensor. The 3D information, point cloud, corresponding to the real scene, is extracted from taken image pairs, a gray texture and a depth map by a depth camera. The extracted point cloud is used...

In this paper, we introduce a novel – physico-chemical – approach for calibration of a digital camera chip. This approach utilizes results of measurement of incident light spectra of calibration films of different levels of gray for construction of calibration curve (number of incident photons vs. image pixel intensity) for each camera pixel. We show spectral characteristics of such corrected d...