While digital technology extinguished the obligatory use of the photographic film as well as the time consuming chemical photograph development techniques, the number of taken photographs has rapidly increased. As the computer harddisks as well as the photography websites substituted the photo albums, finding photographs from digital archives became difficult. Conventional image retrieval syste...

This article investigates how people process information from aerial photographs to categorize locations. Three cognitive experiments were conducted with human subjects viewing a series of aerial photographs and categorizing the land use for target locations. Reaction time, accuracy, and confidence were considered as dependent variables related to the success of the categorization process. The ...

One of the long-standing challenges in photography is motion blur. Blur artifacts are generated from relative motion between a camera and a scene during exposure. While blur can be reduced by using a shorter exposure, this comes at an unavoidable trade-off with increased noise. Therefore, it is desirable to remove blur computationally. To remove blur, we need to (i) estimate how the image is bl...

As physicians, our most important responsibility lies in protecting patients, which includes a patient’s right to privacy. While patients’ rights are our foremost concern, the advancement of medicine relies on collaboration and the open exchange of ideas and research. Theneed to collect information about patients in the course of conducting research can present challenges in maintaining patient...

By applying the principle that all stellar image profiles should be identical apart from a scale change, we can derive a relative calibration for a photographic plate without use of calibration spots or other indirect means.