IN this outstanding 2"x2" Slide Projector, Bausch & Lomb has utilized the experience gained in manufacturing motion picture optical systems to give the user screen images of professional quality from black and white or color slides. Despite the exceptional brilliance of the screen images, slide temperature is kept within safe limits for all normal projection. The Bausch & Lomb 2"x2" Slide Proje...

conclusion despite multiple exposures, ed control is more effective if wss is performed using apmdr in the aec mode. results using apmdr, the mean number of exposures was 6.1 for ap and 6.5 for lat projections. lat projections required more exposures (6.55%) than ap projections. the mean ed was 0.6276 msv (ap) and 0.6716 msv (lat). the mean ed for lat projections was 0.6061 msv in automatic exp...

Compared with the planar color gamut, stereoscopic gamut is more uniform, it can reflect actual situation of display system by considering changes in brightness. In this article we introduce another advantage using external factors system, such as influence spectral reflectivity screen. When space converted from CIEXYZ to CIELAB, use a fixed white point, these results are intuitive and reasonab...

Interfaces based on projection screens have become increasingly more popular in recent years, mainly due to the large screen size and resolution that they provide, as well as their stereo-vision capabilities. This work shows a local method for real-time detection of non-stationary photometric perturbations in projected images by means of computer vision techniques. The method is based on the co...

To use a projector anytime anywhere, a lot of projectorcamera based approaches have been proposed. In this paper, we focus on a focal correction technique, one of projector-camera based approaches, reduces an effect of defocus blur which occurs when a screen is located out of projector’s depth-of-field. We propose a novel method for estimating projector defocus blur on a planar screen without a...

A projectional skeleton in a Banach space is a σ-directed family of projections onto separable subspaces, covering the entire space. The class of Banach spaces with projectional skeletons is strictly larger than the class of Plichko spaces (i.e. Banach spaces with a countably norming Markushevich basis). We show that every space with a projectional skeleton has a projectional resolution of the ...

There are many types of display systems used in Augmented Reality (AR), each having specific application areas. Based on an extensive literature and technology review, this paper proposes the use of a transparent projection screen for users in a fixed position observing distant objects. The transparent projection screen is similar to head-up displays (HUDs) used in aircraft cockpits, since they...

A multi-channel viewing-zone scanning holographic display that enables an increase in the screen size using multiple projection systems is proposed. A screen size of 7.4 in and viewingzone width of 630 mm are demonstrated. OCIS codes: (090.2870) Holographic display; (090.1760) Computer holography; (120.2040) Displays

We demonstrate image processing algorithms that achieve the distortion-corrected projection on surfaces with horizontal discontinuity, with casually placed camera and projector. We focus on three cases of perspective-corrected projection: single projection on flat surface, single projection on wall corner, multiple projections on flat surface. Image pre-warping is used to achieve screen geometr...