Abstract: Methods are provided for automatically performing atmospheric compensation of a multi or hyper spectral image. One method comprises transforming at least two endmembers extracted from an image into at-ground reflectance. The transformation may be approximate and/or only in certain spectral bands in order to reduce processing time. A matching component is then located in a spectral library for each of the at least two extracted endmembers. Gain and offset values are then calculated using the at least two matched extracted endmember and spectral library component pairs. At least part of the image is then compensated using the calculated gain and offset values. Another method uses at least one endmember extracted from the image and a black level. Methods for atmospheric compensation using water vapor content of pixels are also provided. In addition, methods for shadow correction of hyper and multi spectral images are provided.

Abstract: A method and system for the ultrasonic non-destructive testing of joints in plastic pipes using A-scans. A hand-held ultrasonic transducer is used to perform an A-scan and a comparison made on a response from the interface region of the joint used to determine a quality of the joint. Levels of result can provide a binary output to give an indication of whether or not a defect is present in the joint. Comparison techniques are described. Tests for coupling efficiency and performance are described making the system useable by an unskilled technician. The system finds application in fault detection on electro-fusion welds in plastic pipe joints.

Abstract: Methods are provided for automatically performing atmospheric compensation of a multi or hyper spectral image. One method comprises transforming at least two endmembers extracted from an image into at-ground reflectance. The transformation may be approximate and/or only in certain spectral bands in order to reduce processing time. A matching component is then located in a spectral library for each of the at least two extracted endmembers. Gain and offset values are then calculated using the at least two matched extracted endmember and spectral library component pairs. At least part of the image is then compensated using the calculated gain and offset values. Another method uses at least one endmember extracted from the image and a black level. Methods for atmospheric compensation using water vapor content of pixels are also provided. In addition, methods for shadow correction of hyper and multi spectral images are provided.

Abstract: Methods are provided for automatically performing atmospheric compensation of a multi or hyper spectral image. One method comprises transforming at least two endmembers extracted from an image into at-ground reflectance. The transformation may be approximate and/or only in certain spectral bands in order to reduce processing time. A matching component is then located in a spectral library for each of the at least two extracted endmembers. Gain and offset values are then calculated using the at least two matched extracted endmember and spectral library component pairs. At least part of the image is then compensated using the calculated gain and offset values. Another method uses at least one endmember extracted from the image and a black level. Methods for atmospheric compensation using water vapor content of pixels are also provided. In addition, methods for shadow correction of hyper and multi spectral images are provided.

Abstract: Methods are provided for automatically performing atmospheric compensation of a multi or hyper spectral image. One method comprises transforming at least two endmembers extracted from an image into at-ground reflectance. The transformation may be approximate and/or only in certain spectral bands in order to reduce processing time. A matching component is then located in a spectral library for each of the at least two extracted endmembers. Gain and offset values are then calculated using the at least two matched extracted endmember and spectral library component pairs. At least part of the image is then compensated using the calculated gain and offset values. Another method uses at least one endmember extracted from the image and a black level. Methods for atmospheric compensation using water vapor content of pixels are also provided. In addition, methods for shadow correction of hyper and multi spectral images are provided.

Abstract: Methods are provided for automatically performing atmospheric compensation of a multi or hyper spectral image. One method comprises transforming at least two endmembers extracted from an image into at-ground reflectance. The transformation may be approximate and/or only in certain spectral bands in order to reduce processing time. A matching component is then located in a spectral library for each of the at least two extracted endmembers. Gain and offset values are then calculated using the at least two matched extracted endmember and spectral library component pairs. At least part of the image is then compensated using the calculated gain and offset values. Another method uses at least one endmember extracted from the image and a black level. Methods for atmospheric compensation using water vapor content of pixels are also provided. In addition, methods for shadow correction of hyper and multi spectral images are provided.

Abstract: A method and system for the ultrasonic non-destructive testing of joints in plastic pipesusing A-scans. Ahand-held ultrasonic transducer is used to perform an A-scan and a comparison made on a response from the interface region of the jointused to determine a quality of the joint. Levels of result can providea binary outputto give an indicationof whether or not a defect is present in thejoint. Comparison techniques are described. Tests for coupling efficiency and performance are described making the system useable by an unskilled technician.The system finds application in fault detection on electro-fusion welds in plastic pipe joints.

Abstract: Methods are provided for automatically performing atmospheric compensation of a multi or hyper spectral image. One method comprises transforming at least two endmembers extracted from an image into at-ground reflectance. The transformation may be approximate and/or only in certain spectral bands in order to reduce processing time. A matching component is then located in a spectral library for each of the at least two extracted endmembers. Gain and offset values are then calculated using the at least two matched extracted endmember and spectral library component pairs. At least part of the image is then compensated using the calculated gain and offset values. Another method uses at least one endmember extracted from the image and a black level. Methods for atmospheric compensation using water vapor content of pixels are also provided. In addition, methods for shadow correction of hyper and multi spectral images are provided.

Abstract: A system for recording music is disclosed. The system for recording music comprises an audio plug-in, wherein the plug-in is configured to be incorporated to a computer having a digital audio workstation, wherein the plug-in allows for asynchronous collaboration of a plurality of audio files recorded by a plurality of collaborators, wherein the audio files are transmitted and received among the plurality of collaborators via the Internet. A method for recording music is additionally disclosed.

Abstract: A slab is fabricated of concrete positionable adjacent to a side wall of a manufactured home. The slab has a periphery. The periphery forms a lower flange. A dome is positioned upon the slab. The dome has a flat face. The flat face is positionable in contact with the side wall. The flat face is formed with an opening in facing contact with the side wall. The dome has a peripheral flange remote from the opening. The peripheral flange of the dome is concentric with and smaller than the peripheral flange of the slab.

Abstract: A method and apparatus for selectively charging a secondary voltage rail includes selectively and partially charging a secondary voltage rail using at least one soft start power gate switch and using an initial power control indicator. The partially charged secondary voltage rail is selectively charged, using at least one main power gate switch, based on the initial power control indicator and a detected voltage on the secondary voltage rail. When the initial power control indicator is in a state representative of an initial power up command and when the detected voltage is greater than or equal to a predetermined voltage level, at least one main power gate switch is closed thereby charging the secondary voltage rail.

Abstract: A method and apparatus for selectively charging a secondary voltage rail includes selectively and partially charging a secondary voltage rail using at least one soft start power gate switch and using an initial power control indicator. The partially charged secondary voltage rail is selectively charged, using at least one main power gate switch, based on the initial power control indicator and a detected voltage on the secondary voltage rail. When the initial power control indicator is in a state representative of an initial power up command and when the detected voltage is greater than or equal to a predetermined voltage level, at least one main power gate switch is closed thereby charging the secondary voltage rail.

Abstract: A conventional wheelchair (11) is powered by the hands and arms of the User. It normally has two large hand/arm driven rear wheels (17) and two small front castor-like wheels (19). The available powered chairs are expensive and complex, and not suitable for use both out on the street and also in inside at home or at work. The present invention furnishes a self-powered steerable mobility unit (21) that can be securely but removably attached in a matter of minutes to a wheelchair to provide superior mobility and yet increased stability and greater ease of use both indoors and out.