Reclaiming saliency: Rhythmic precision-modulated action and perception

Computational models of visual attention in artificial intelligence and robotics have been inspired by the concept of a saliency map. These models account for the mutual information between the (current) visual information and its estimated causes. However, they fail to consider the circular causality between perception and action. In other...

How do people distribute their attention while observing The Night Watch?

This study explored how people look at The Night Watch (1642), Rembrandt's masterpiece. Twenty-one participants each stood in front of the painting for 5 min, while their eyes were recorded with a mobile eye-tracker and their thoughts were verbalized with a think-aloud method. We computed a heatmap of the participants’ attentional...

Integrating stakeholder analysis models to gather more stakeholder insight

Stakeholder management is one of the elements of project management within the building industry. Stakeholder management consist of stakeholder analysis and stakeholder engagement. Current stakeholder analysis models, methods and tools are often very focused around one central issue: individual characteristics or relations between stakeholders....

Image Quality Experience

While the world we live in becomes more saturated with ubiquitous digital displays, and as the threshold for creating digital media continues to drop, image quality is an issue that concerns an increasingly large segment of the population. Higher resolutions, increased dynamic range, and faster frame rates put increasing demands on resources...

Multimodal Joint Visual Attention Model for Natural Human-Robot Interaction in Domestic Environments

Due to population ageing, the cost of health care will raise in the coming years. One way to help humans, and especially elderly people, is the introduction of domestic robots that can assist people in daily life such that they are less dependent on home care. Joint visual attention models can be used for natural robot-human interaction. Joint...

Semi-hidden target recognition in gated viewer images fused with traditional thermal IR images

Nowadays, for the defense and security community, it is of prior importance to classify threats that are merged in a background while at the same time understanding the context of the entire scene. Traditional TV and Infra-Red (IR) cameras allow for an easy context understanding by providing valuable background and scenery information....

Interactions of visual attention and quality perception

Several attempts to integrate visual saliency information in quality metrics are described in literature, albeit with contradictory results. The way saliency is integrated in quality metrics should reflect the mechanisms underlying the interaction between image quality assessment and visual attention. This interaction is actually two-fold: (1)...

The Effect of Task on Visual Attention and its Application to Image Quality Assessment Metrics

Determining the perceived quality of a digital image can be done by showing it to a large group of people and ask them to rate its quality. However, this method is too cumbersome and time-consuming for most applications. Therefore, automatic metrics have been developed, which are able to objectively predict the perceived image quality without...

The Improbability of Harris Interest Points

An elementary characterization of the map underlying Harris corners, also known as Harris interest points or key points, is provided. Two principal and basic assumptions made are: 1) Local image structure is captured in an uncommitted way, simply using weighted raw image values around every image location to describe the local image information,...

Studying the effect of optimizing the image quality in saliency regions at the expense of background content

Manufacturers of commercial display devices continuously try to improve the perceived image quality of their products. By applying some post processing techniques on the incoming image signal, they aim to enhance the quality level perceived by the viewer. Applying such techniques may cause side effects on different portions of the processed...