Large collections of geotagged photos publicly accessible through photo-sharing web sites such as Flickr or Panoramio, present an opportunity for the entire Internet community to access the wealth of visual and textual data stored on photos. At the same time, it presents the challenge of how to efficiently and effectively turn this data into information about locations of interest and people’s ...

We present an approach for recognizing highlevel geo-temporal phenomena – referred as events/occurrences– from in-depth discovery of information, using geo-tagged photos, formal event models, and various context cues like weather, space, time, and people. Due to the relative availability of information, our approach automatically obtains a probabilistic measure of occurrence likelihood for the ...

Habitat classification and its applications (e.g. habitat monitoring, identification of rare species, etcetera) are important challenges researched by environmental bodies and mapping agencies. However, manual habitat classification is labour intensive, costly, subjective and time consuming (Chen and Rau, 1997). From an image processing perspective, habitat classification can be achieved using ...

Computational photography combines plentiful computing, digital sensors, modern optics, actuators, and smart lights to escape the limitations of traditional cameras, enables novel imaging applications and simplifies many computer vision tasks. However, a majority of current Computational Photography methods involve taking multiple sequential photos by changing scene parameters and fusing the ph...

Introduction "We want to keep our entire life by video" is the motivation of this research. Personal experiences are usually maintained by such media as diaries, pictures and movies. For example, we memorize our daily experiences in a diary, and we use photos and movies to keep our special events such as travels etc. However, those existing media, so far, keep records of only a small part of ou...

A key component in most virtual reality systems is the ability to perform a walkthrough of a virtual environment from different viewing positions and orientations. Recent advances in image-based rendering techniques allow us to have interactive panoramic viewing of real world environment using real photos. With panorama visualization tools like QuickTime VR, we are able to have fast navigation ...

Statistical image features play an important role in forensic identification. Current source camera identification schemes select image features mainly based on classification accuracy and computational efficiency. For forensic investigation purposes, however, these selection criteria are not enough. Consider most real-world photos may have undergone common image processing due to various reaso...

a b s t r a c tintroduction: craving to methamphetamine is a significant health concern and exposure to methamphetamine cues in laboratory can induce craving. in this study, a task designing procedure for evaluating methamphetamine cue-induced craving in laboratory conditions is examined. methods: first a series of visual cues which could induce craving was identified by 5 discussion sessions b...