As there are few in situ observations in and around Antarctica, it is important to assess how assimilating remotely-sensed observations, such as satellite-observed radiances, can fill this observational gap. Thus, a month-long study was conducted over the Antarctic to examine forecast and analysis sensitivity to the assimilation of microwave radiance measurements. Several experiments were confi...

This paper reports on a preliminary experiment to undertake in-flight radiance calibration validation (cal-val) of the NERC CASI. The approach involved comparing CASI radiance values of a single, wellcharacterised target with synchronised measurements of target radiance obtained at the ground with a calibrated spectroradiometer. CASI data were obtained at two altitudes: 853m and 3109m, in spati...

The simulation of remote sensing images is necessary for many tasks, such as the definition of future Earth Observation systems, the optimization of instrument parameters, and the development and validation of data processing algorithms. The presented hyperspectral scene simulator has been developed in the frame of the Environmental Mapping and Analysis Program (EnMAP) mission. It consists of f...

Lightfield photography enables many new possibilities for digital imaging because it captures both spatial and angular information, i.e., the full four-dimensional radiance, of a scene. Extremely high resolution is required in order to capture four-dimensional data with a two-dimensional sensor. However, images rendered from the lightfield as projections of the four-dimensional radiance onto tw...

Ground-based Folurier Transform infrared (FTIR) instruments are being produced at the University of Wisconsin (UW) and the Unliversity of Denver (UD) for the Atmospheric Radiation Measurement (ARM) Program's Cloud and Radiation Te:stbed (CART) sites as part of a joint Instrument Development Program (lOP). The three instrument types under development are summarized in Table 1 . For each ARM site...

This document describes a visual comfort calculation developed by the LESO group at EPFL during Spring of 1991. The calculation uses the RADIANCE synthetic imaging system [Ward90] to compute luminance values from a computer model of an architectural space and the lighting and daylighting of that space. These luminance values are then applied to a selected glare calculation procedure to arrive a...

This paper describes a method for rendering interreflections, self-induced shadows and caustics in real-time in a general low-frequency lighting environment. The method handles environment and area lighting and glossy as well as diffuse objects. The lighting environment is projected onto a lowfrequency spherical harmonic basis. Before the rendering a transfer vector (diffuse case) or a transfer...

Recent advances in neural rendering indicate immense promise for architectures that learn light transport, allowing efficient of global illumination effects once such methods are trained. The training phase these can be seen as a form pre-computation, which has long standing history Computer Graphics. In particular, Pre-computed Radiance Transfer (PRT) achieves real-time by freezing some variab...