Abstract:
The present invention relates to isolated strains of a Streptomyces spp. which are endophytes of dicotyledonous plants and to methods for selecting such strains. The present invention also relates to a biologically active compound called coronamycin obtained from endophytic Streptomycetes isolated from higher plants. The present invention further relates to compositions of such compounds and to methods of protecting plants against attack by a plant pathogen and methods of inhibiting bacterial growth, fungal growth, viral infection, growth of parasitic organisms, and cancer cell growth with such compositions.
Abstract:
The present invention involves the discovery of a novel endophytic fungus, Muscodor albus, which produces volatile antibiotics that are effective in the treatment of human and animal waste products. Through experimentation, this invention confirms that Muscodor albus can be used in disposable bags in connection with portable toilets to solve the problem of degradation of waste products in situations where humans are removed from sanitary facilities. This invention includes the discovery of non-volatile inhibitors that are also produced by Muscador albus and that are similarly effective in treating human and animal wastes. This invention covers a unique and novel method for preparing Muscador albus for commercial use in the treatment of human and animal wastes. This method entails infesting a seed grain with Muscador albus and then storing it under conditions that will allow the fungus to remain viable.
Abstract:
A method is provided for detecting a human face in an image, such as a sequence of images supplied by a video camera. The method comprises locating in each image a candidate face region and analyzing the candidate face region for a first characteristic indicative of a facial feature. The locating step may comprise detecting uniformity saturated regions of predetermined shape in a reduced resolution version of the image. The analyzing step may comprise selecting a signal color component, forming a vertical integral projection profile and detecting an omega shape in the profile characteristic of an eye region of a face.
Abstract:
A three dimensional display is provided which can. operate in an autostereoscopic mode, requiring no viewing aid, and a stereoscopic mode, requiring a viewing aid such as polarized spectacles. In the autostereosocopic mode, light from illuminators is imaged by lenses through LCD display panels at regions where the left and right eyes of an observer are located. Thus, a two dimensional image displayed on one panel is visible to the right eye of the observer whereas a two dimensional image displayed by the other panel to visible to the left eye of the observer. In the stereoscopic mode, light from the illuminators through the LCD panels is visible throughout an extended region by both eyes of the observer. However, the light from the panels is polarized in mutually perpendicular directions and the spectacles comprise polarizers for the left and right eyes which substantially pass only light corresponding to the left and right images, respectively.
Abstract:
An observer tracking directional display comprises a spatial light modulator associated with a movable parallax optic. An observer tracker determines the position of an observer and controls the position of the optic by way of an electromechanical transducer and a mechanical transmission. The mechanical tracking arrangement has a plurality of stationary positions for the parallax optic relative to the spatial light modulator (SLM) and steps between these positions so as to optimize the viewing windows for the current position of the observer.
Abstract:
An autostereoscopic display includes a display device and an optical system which provide laterally overlapping viewing windows wherein one viewing window may receive black view data while an adjacent viewing window receives eye view data. Such a display may be used to perform observer tracking.
Abstract:
An observer tracking display is provided in which the image data displayed by at least three image displays along respective different directions is updated depending on the lateral position of an observer. The image displayed in a viewing region not visible to the observer is updated with an appropriate image in anticipation of the observer moving to a position where that viewing region is visible.
Abstract:
The number of 2D views available to form an autostereoscopic 3D image is increased by using a beam combiner with two displays. Each display may comprise sequentially illuminatable light sources imaged by converging lenses for illuminating sequentially reproduced 2D images in spatial light modulators. The views are combined by the beam combiner so as to be visible to an observer in different directions corresponding to the directions from which the views were recorded during image capture.
Abstract:
An optical apparatus of this invention comprises a first spatial light modulator, an array of imaging elements, and a plurality of light sources, and an image surface. Each of the imaging elements of the array is arranged to form an image of the plurality of light sources via the spatial light modulator at a respective position on the image surface.
Abstract:
A three dimensional imaging apparatus may be used as a microscope or camera. The apparatus includes an array of lenses, each of which is aligned with a respective photodetector element. A liquid crystal spatial light modulator has several pixels between each photodetector element and lens. A control circuit controls the modulator so that the pixels in front of each photodetector element act as a moving shutter. The outputs of the photodetector elements are processed and stored to form a three dimensional image.