Visual interneurones with projections into the median protocerebrum of the honeybee brain were characterized by electrophysiological and neuroanatomical methods. Extrinsic medulla neurones with wide ramifications in the medulla and terminations in the median posterior protocerebrum show spatial opponency in their tonic responses to stationary light. Wide-field lobula neurones projecting into th...

In this paper, we propose a new approach to detect salient traffic signs, which is based on visual saliency and auto-generated strokes for image segmentation. The proposed algorithm deals with two tasks on detecting traffic signs: auto-location and auto extraction. Firstly, inspired by recent work of visual saliency detection, we obtain the location of traffic signs in a natural image by multi-...

Bilateral papilledema secondary to obstructive or communicating hydrocephalus in patients with vestibular schwannomas is a known presentation; however, papilledema in the absence of hydrocephalus is rarely reported and its mechanism is poorly understood. We report a case of a 20-year-old woman presenting with visual deterioration and bilateral papilledema on fundoscopy. Magnetic resonance imagi...

The effects of divided attention were examined in younger adults (M = 23 years) and older adults (M = 64 years) who searched for traffic signs in digitized images of traffic scenes. Sign search was executed under single-task and dual-task conditions in scenes containing either small or large amounts of visual clutter. For both age groups, clutter and the secondary task had additive effects on s...

Dynamic visual identification was investigated in 4 experiments. In Experiments 1 and 2, 2 perceptual objects (2 frames, each containing a letter or 1 containing a letter and the other a plus sign) were previewed in the periphery. A saccade brought these objects to central vision. During the saccade the display was changed so that 1 frame contained a letter and the other a plus sign, and the su...

Anisometropic amblyopia is characterized by a decrease in best corrected visual acuity in one eye as a result of significantly different refractive errors between the two eyes. The eye that ultimately provides a more blurred image to the visual cortex develops amblyopia.1 Several authors have suggested that anisometropia is the leading cause of amblyopia and is responsible for approximately 50%...

The borders of human visual areas V1, V2, VP, V3, and V4 were precisely and non-invasively determined. Functional magnetic resonance images were recorded during phase-encoded retinal stimulation. This volume data set was then sampled with a cortical surface reconstruction, making it possible to calculate local visual field sign (mirror vs. non-mirror image representation). This method automatic...

Sign languages are visual languages used in deaf communities. They are essentially tempo-spatial languages: signs are made of manual components, e.g., the hand movements, and non-manual components, e.g., facial expressions. The e-LIS project aims at the creation of the first web bidirectional dictionary for Italian sign language–verbal Italian. Whereas the lexicographic order is a standard and ...

It is difficult for most of us to imagine, but many who are deaf-mute rely on sign language as their primary means of communication. They, in essence, hear and talk through their hands. Sign languages are visual languages. They are natural languages which are used by many deaf-mute people all over the world. In sign language the hands convey most of the information. Hence, vision-based automati...

Bali Safari and Marine Park merupakan tempat wisata kombinasi dari kehidupan satwa liar di habitat aslinya dengan ekosistem bersinggungan kebudayaan masyarakat. Dengan datangnya para wisatawan ke membuat ketersediaan public sign (tanda luar ruang) menjadi komponen penting dalam menyediakan informasi yang dibutuhkan oleh pengunjung. Karena keterbatasan media ada pada tanda ruang (public sign), k...