Abstract: Embodiments pertain to a method and apparatus for imaging discrete bands of the spectrum of a target and calculating the true absorption/reflectance of the target with reference to a static ambient light sensor for each of the bands of the spectrum implemented in the device. In specific embodiments, an array of cameras, each with a separate band pass filter, is used to acquire images simultaneously. Embodiments can allow an operator of a multi-spectral or hyperspectral camera array to create accurate radiometric images of crops, minerals, or other subjects of interest, so that the chemical composition, surface condition, and/or other characteristics can be accurately analyzed. An embodiment can use matched area sensors to separately collect images of the target and a calibration image via a bundle of optical fibers with remotely located, matching, band pass filters.

Abstract: Embodiments of the subject invention relate to a method and apparatus for providing a 3D image and/or 3D video. Specific embodiments can provide a 3D image and/or 3D video via a handheld media player. Examples of handheld media players via which embodiments can provide a 3D image and/or 3D video include, but are not limited to, an IPod®, a personal digital assistant (PDA), a cell phone, or an IPhone®. In accordance with specific embodiments of the invention, the problem of viewing three-Dimensional (3D) images on personal or handheld media devices is solved by the use of a compatible 3D viewer. Embodiments of the viewer, can provide a 3D experience to a user from images provided on the smaller viewscreen of a smaller, personal, or handheld media device. Specific embodiments described herein provide a 3D viewer that can present two stereoscopic images (i.e., 2-Dimensional (2D) images, having horizontal disparity) to a user's or viewer's eyes, such that each eye sees only one of the two stereoscopic images.