A New Baseline for Feature Description on Multimodal Scans of Paintings

Multimodal imaging is used by conservators and scientists to study the composition of paintings. To aid the combined analysis of these scans, such images must first be aligned. Rather than proposing a new domain-specific descriptor, we explore and evaluate how existing feature descriptors from related fields can improve the performance of...

A proof of concept for aligning sketches to their corresponding painting

Aligning sketches to their corresponding painting could give more insight into the creative process of an artist. This is a difficult task that cannot be solved directly with classical image registration techniques. Typically, features such as cracks and brushstrokes are used to match different modalities. A sketch does not contain such...

Scale invariant image registration in the domain of art conservation

Image registration is the process that overlays two or more images from different sources taken at different times and angles. Art conservators take various scans of paintings and then register them against the original in order to learn more about the working style of the artist, materials used and physical changes throughout time. This paper...

Aligning non-exact copies of artworks with their original

This research investigates the efficacy and reliability of geometric matching for the specific case of aligning non-exact copies of artistic works with the original from which they were derived. The purpose of which is to provide a foundation for comparison in any further analysis conducted by conservators and art historians. An overview of the...

Improving Image Registration Accuracy through User Interaction

The current state-of-the-art image alignment techniques and their input parameters are often unintuitive to those without the required background knowledge.<br/>This work aims to provide users with a graphical user interface through which they can intuitively influence the parameters and results of the algorithm by excluding certain areas from...

Adding Bloom to High-Dynamic-Range Tone Mapping

We present a technique for enhancing high-dynamic-range tone mapping algorithms by adding the bloom effect to bright areas. Bloom is based on the fact that real-life lenses convolve light and make bright areas emit a glow. The algorithm takes a set of images with different exposures as input, and performs a tone mapping algorithm on these. It...

Capturing and grouping SDR frames containing sections of HDR from a video feed to artificially expand the dynamic range of SDR screens

In this paper, a method is proposed to artificially expand the dynamic range of screens with a limited dynamic range. This research is linked to a new film-making technology where, instead of using a green screen, the background of a scene is displayed on a screen in real time using a computer generated background. This provides real time...

Matting using a known background and a chroma-key minimization scheme

In this paper, we investigate the problem of segmenting the foreground objects from the known background. The target application is a setting where a large display serves as the backdrop for a scene. The method proposed in this paper solves this problem in two steps. We try to separate the foreground and the background with the modified...

Hidden in plain sight: Camera tracking markers forvirtual production setups

With a large move to virtual production in films, where a large screen displaying a rendered scene is used as an alternative to replacing a green screen, there is a need for simple and effective camera tracking. Infrared tracking is widely used in the industry however it creates a barrier to entry for small productions without limited budgets....