Abstract: A smart lighting system and method that estimates occupancy using perturbation-modulated light and distributed non-imaging color sensors. A system is disclosed that includes a plurality of non-imaging color sensors; a plurality of color controllable lights; a system that perturbs the color controllable lights within a space; a system that collects resulting color information from the non-imaging color sensors, and builds a light transport model based on collected color information; a system that estimates an occupancy pattern or distribution within a space; and an adjustment module that adjusts the color controllable lights based on the light transport model and a predefined control strategy.

Abstract: A smart lighting system and method that estimates occupancy using perturbation-modulated light and distributed non-imaging color sensors. A system is disclosed that includes a plurality of non-imaging color sensors; a plurality of color controllable lights; a system that perturbs the color controllable lights within a space; a system that collects resulting color information from the non-imaging color sensors, and builds a light transport model based on collected color information; a system that estimates an occupancy pattern or distribution within a space; and an adjustment module that adjusts the color controllable lights based on the light transport model and a predefined control strategy.

Abstract: A method and apparatus for detecting intraventricular dyssynchrony is provided. In one embodiment, the method includes: a) receiving information from an observer viewing a source image to define a plurality of points associated with muscle boundaries of a ventricle, b) extracting muscle boundaries for a series of source images to define a corresponding series of contour shape images using a Fourier descriptor model, and c) deforming each contour shape based at least in part on image forces, external forces, and internal forces to track movement of the muscle boundaries over time. In another embodiment, the method includes: a) characterizing the series of source images as a corresponding series of contour shape images representative of movement of muscle boundaries of the ventricle over time, b) classifying the series of contour shape images in a dyssynchronous class or a non-dyssynchronous class, and c) pre-diagnosing the ventricle as dyssynchronous or non-dyssynchronous.

Abstract: A method and apparatus for detecting intraventricular dyssynchrony is provided. In one embodiment, the method includes: a) receiving information from an observer viewing a source image to define a plurality of points associated with muscle boundaries of a ventricle, b) extracting muscle boundaries for a series of source images to define a corresponding series of contour shape images using a Fourier descriptor model, and c) deforming each contour shape based at least in part on image forces, external forces, and internal forces to track movement of the muscle boundaries over time. In another embodiment, the method includes: a) characterizing the series of source images as a corresponding series of contour shape images representative of movement of muscle boundaries of the ventricle over time, b) classifying the series of contour shape images in a dyssynchronous class or a non-dyssynchronous class, and c) pre-diagnosing the ventricle as dyssynchronous or non-dyssynchronous.

Abstract: An extended impulse response characteristic is obtained by switchably connecting (via 13, 14, 15) at least first (10) and second (12) adaptive echo cancelers in a tandem connection (FIG. 1). A delay unit (11) is associated with a receive input (X) of the second adaptive echo canceler (12) so that each filter models a different portion of the extended impulse response characteristic. The relative positions of the adaptive echo cancelers (10, 12) in the tandem connection are controllably switched (via 13, 14, 15 and 16) to insure so-called "good" adaptation of the individual adaptive echo cancelers (10, 12) to minimize misalignment noise. Both adaptive echo cancelers (10, 12) are allowed to adapt initially but upon switching only the adaptive echo canceler (12) in a so-called preferred position in the tandem connection is allowed to adapt while the other adaptive echo canceler (10) is inhibited from further adapting.