Abstract: The present invention relates to mycobacterial lipoarabinomannan cap-specific mannosyl transferases and nucleic acid encoding such transferases. The invention further relates to Mycobacteria in which the lipoarabinomannan cap-specific mannosyl transferases have been inactivated and that therefore express mannose cap-deficient lipoarabinomannan. Such Mycobacteria with mannose cap-deficient lipoarabinomannan may be used as more effective vaccines against mycobacterial diseases as they lack the immunosuppressive action of the mannose cap.

Abstract: A method of scaling a three-dimensional input model (100) in a three-dimensional input space into a three-dimensional output model (200) which fits in a predetermined three-dimensional output space (104) is disclosed. The scaling is such that a first input surface (106) in the three-dimensional input space, having a first distance to a viewpoint, is projected to a first output surface (110) in the predetermined three-dimensional output space by applying a first scaling factor and whereby a second input surface (108) in the three-dimensional input space, having a second distance to the viewpoint, which is smaller than the first distance, is projected to a second output surface (112) in the predetermined three-dimensional space, by applying a second scaling factor which is larger than the first scaling factor.

Abstract: A display device comprises a display arrangement having inherent non-uniformity of an output intensity across the display area and an optical attenuator arrangement (205,207) positioned in front of the display arrangement and in registration with the display area, wherein the optical attenuator arrangement has a light attenuation characteristic that varies across the display area and is adapted to optically reduce the inherent non-uniformity of the output intensity.

Abstract: An optical system or front end for adding an optical depth information to a two-dimensional image (1), wherein the optical system includes an array of optical lenses (2) arranged in front of the two-dimensional image (1). The optical lenses have adjustable focal length (strength) in response to the optical depth information (D). An optical barrier (3) is arranged in front of the array of optical lenses (2) with optical apertures aligned with the optical lenses of the array of optical lenses (2). Such optical front end can be used for 3D displays based on known 2D displays including LCD, LCOS, Plasma, and CRT type displays. Such a 3D display does not suffer from a resolution loss depending on a number of viewing angles. In embodiments adapted for pixelized 2D displays, the array of optical lenses preferably has one lens per pixel. The barrier (3) may be fixed or adjustable to allow adjustment of the characteristics of the added optical depth.

Abstract: An optical system that can add an optical depth information to a two-dimensional image (72) represented by substantially collimated light, e.g. by using a collimated light source in front of a LCD display. The optical system includes a first array of optical lenses (70) arranged at a first distance in front of the two-dimensional image (72), and a second array of optical lenses (71) arranged at a second distance in front of the two-dimensional image (72), the second distance being larger than the first distance. Optical properties, e.g. focal length, can be adjusted for the optical lenses of the first and second array of optical lenses (70, 71) in response to the optical depth information. The optical system can serve as an optical front for 3D multiview displays. Depending on embodiment, both horizontal and vertical angular resolution can be obtained, and the front end exhibits only a small brightness loss. Preferably one lens per pixel is used in case of a pixelized image.

Abstract: The current invention provides new Gram negative polypeptides exhibiting lipid A 3-O-deacylase activity and are capable of modifying and/or detoxifying gram negative LPS. The present invention also provides Gram negative bacteria, Gram negative bacterial lipopolysaccharides (LPS) and compositions comprising LPS, which are provided with or treated with a 3-O-deacylase activity according to the invention and which may be used for pharmaceutical and/or veterinary purposes, in particular for the preparation of whole cell or acellular vaccines against pathogenic Gram negatives such as Bordetella pertussis, Bordetella parapertussis and Bordetella bronchiseptica.

Abstract: A method of generating a depth map (106) comprising depth values representing distances to a viewer, for respective pixels of an image (100), is disclosed. The method comprises: segmenting the image (100) into a first segment (110) and a second segment (108); and assigning a first one of the depth values corresponding to a first one of the pixels of the first segment (110) on basis of a first size of the first segment (110) and assigning a second one of the depth values corresponding to a second one of pixels of the second segment (108) on basis of a second size of the second segment (108) whereby the first one of the depth values is less than the second one of the depth values if the first size is less than the second size.

Abstract: A switchable autostereoscopic display device comprises a display panel having an array of display pixel elements for producing a display, the display pixel elements being arranged in rows and columns. An imaging arrangement directs the output from different pixel elements to different spatial positions to enable a stereoscopic image to be viewed. The imaging arrangement is electrically switchable between at two 3D modes, wherein the effective position of the imaging arrangement is shifted laterally between the modes with respect to the display pixel elements by an amount which is a non-integer multiple of the pitch between the pixel elements. These two modes enable the resolution per mode to be increased, by adding views at inter-pixel locations, or enables the number of views to be increased.

Abstract: Disclosed is a visual communication signal (32) which comprises image model information (10) for generating 3-D images. The image model information (10) may comprise a 3-D image model, e.g. a 3-D wireframe model or a 3-D voxel map. Some of the generated 3-D images may have a relatively low image quality. The visual communication signal (32) further comprises image enhancement information (20) corresponding to at least part of the 3-D images for enhancing the image quality of the generated 3-D images. This image enhancement information (20) may comprise image information corresponding to one or more single viewpoints (22, 24) and/or image information corresponding to one or more ranges of viewpoints (26, 28). The visual communication signal (32) may be transmitted from a transmitter (30) to a receiver (34) in a visual communication system (40) such as a 3-D television system or a 3-D teleconferencing system. Alternatively, the visual communication signal (32) may be carried by a tangible medium, e.g.

Abstract: A stereoscopic display apparatus includes a source of illumination for emitting light, an imaging system for imaging the source of illumination at a viewing region, a spatial light modulator for modulating light from the source of illumination with two-dimensional images, and a control unit for controlling a relative position of the “active” source of illumination related to the imaging system. The stereoscopic display apparatus further includes a controller to vary the relative position of the “active” source of illumination in three directions which are orthogonal to each other, without physically moving a light source for inducing the source of illumination to emit light.

Abstract: An optical filter for filtering light rays having mutually different light intensity and direction of incidence on the optical filter along a number of mutually different directions and having a predetermined wavelength or wavelengths, has a carrier body which is transmissive for light rays having the predetermined wavelength or wavelengths and a plurality of photo-adaptive light-blocking elements distributed within the carrier body rendering the optical filter least transmissive in the direction along which the light ray having the highest light intensity is incident.

Abstract: The invention relates to a method for providing rendered images based on image segmentation with determining an edge within the image introduced by boundaries of image segments. To allow shift-based rendering, the invention provides determining an edge within the image introduced by boundaries of image segments, determining an edge region around the edge, determining a first displacement field for the segments, determining a second displacement field for the edge region, merging the first and the second displacement field into a third displacement field having a displacement of the first displacement field for the segments and a displacement of the second displacement field for the edge region, such that the edge region is treated as a separate object with a separate displacement, and shifting the image pixels according to the third displacement field.

Abstract: A method of scaling a three-dimensional input model (200-208) into a scaled three-dimensional output model (210-224) is disclosed. The method comprises determining for portions of the three-dimensional input model respective probabilities that the corresponding portions of the scaled three-dimensional output model are visible in a two-dimensional view of the scaled three-dimensional output model and geometrically transforming portions of the three-dimensional input model into the respective portions of the scaled three-dimensional output model on basis of the respective probabilities. The determining of probability of visibility is based on a projection of the three-dimensional input model in a viewing direction. By taking into account that some portions are not visible, no depth-range is wasted.

Abstract: The present invention relates to Neisserial Lipo-Oligo-Saccharides (LOS) that comprise a tri-saccharide outer core that shows increased binding to the DC-SIGN receptor on dendritic cells, as a result of which the Neisserial LOS's of the invention have increased immunostimulatory activity. The tri-saccharide outer core of the Neiserial LOS's combined with a Lipid A moiety with reduced toxicity is useful as an adjuvant in vaccine preparations.

Abstract: A display system (100) for displaying images from different data streams (1,2) simultaneously is described. Images corresponding to the first data stream (1) are shown to a first observer (106) in a vehicle and images corresponding to the second data stream (2) are shown to a second observer (108) in the vehicle. The display system (100) comprises: a display screen (102 for generating a first one of the images and a second one of the images; and an optical selection screen (104) for selectively passing the first one of the images in a first direction (101) towards the first observer (106) and passing the second one of the image second direction (103) towards the second observer (108). It is advantageously that the display screen (102) generates images both data streams (1,2).

Abstract: A switchable display device (100) which is arranged to switch a portion of the display device (100) between a single-view mode and a multi-view mode is disclosed. The display device (100) comprises: receiving means (102) for receiving an information signal, the information signal having a format comprising structured elements having respective luminance values (234-244) and corresponding distance indicators (202-212); light generating means (108) for generating light on basis of the information signal; optical means (110) for transferring the generated light in dependence of an actual view mode of the portion of the display device (100), the actual view mode being either the single-view mode or the multi-view mode; and mode detection means (104) for detecting the actual view mode of the portion of the display device (100) on basis of the respective distance indicators (202-212).

Abstract: The invention pertains to an isosorbide derivative having at least one polymerizable group, characterized in that the isosorbide derivative further comprises at least one photo-convertible group for adjusting the helical twisting power of the isosorbide derivative. According to a preferred embodiment the isosorbide has the formula wherein A stands for a bond or a p-phenylene group; B and B? are independently O—(CH2)oO—CO—CR??CH2, o being 2-12 and R? being H or CH3; P stands for a CH2 or a C?O group; Q and Q? are independently selected from H, C1-C3 alkyl, C1-C3 alkoxy, halogen, and CN; n is an integer from 1 to 3; and m is an integer from 0 to 2.

Abstract: An observer-adaptive autostereoscopic display system (100) comprises a display device (102) having a screen for displaying an image and a shutter (204) being electronically controlled to have transparent (230) and non transparent segments (228, 232, 234) which alternate time-sequentially in synchronism with the display device (102). The shutter (204) is designed to block light that is traveling in arbitrary directions but to let pass light which goes from the display device to predetermined positions and which is bent by lenses (208-226) of a first (202) and a second grid (206) of lenses. The lenses (208-226) are disposed in the first (202) and the second grid (206) at a predetermined pitch distance which is substantially equal to a pixel width of the image.

Abstract: Compacting, fully enclosed, floored combination multi-antechamber and ramp system for emergency and civil defense use providing, when expanded, means of ingress and egress for the general population including the infected, wounded and handicapped to and from buildings or other folding structures via portals to which its adapter may be securely attached or retrofit while passing through a series of two or more antechambers so as to prevent spreading contamination and allow for various decontamination protocols to be conducted in separate chambers. Compacting is achieved by modularity in some embodiments, and folding in other embodiments, in both framed and panel versions, providing important advantages for transport, pre-positioning, storage, and warehousing.