Abstract: An object of the present invention is to extract an image closest to a reference image from among a plurality of candidate images. A plurality of candidate images similar to the reference image are extracted from a plurality of images by utilizing granulometry. The plurality of candidate images is transformed based on the reference image. Mutual information shared by each of the transformed candidate images and the reference image is calculated. A candidate image sharing the largest amount of mutual information with the reference image is selected from among the plurality of candidate images.

Abstract: A control system is provided for load sharing between a plurality of compressors. The control system determines the actual coefficients of export flow for the compressors, compares the actual coefficients of export flow with a common or individual coefficients of export flow setpoints generated by one or more central controllers, and then generates control signals for adjusting the operating points of the compressors in order to load balance the compressors.

Abstract: The present invention aims at readily calculating a difference between the positions of a plurality of images. Noises are removed from a plurality of halftone images representing the same object. The plurality of halftone images having noises removed therefrom is binary-coded. The barycenters of the binary-coded images are specified. A difference between the positions of the plurality of halftone images in image frames is calculated based on a difference between the positions of the barycenters thereof in the image frames. The plurality of halftone images are synthesized with the difference between the positions of the halftone images in the image frames corrected.

Abstract: A system and a method for adjusting contrast and brightness in an image, e.g., an ultrasound image. The contrast and brightness are adjusted by processing global pixel intensity data to form a set of data representing a histogram. An algorithm is then employed to filter the pixel intensity values as a function of certain characteristics of the histogram data. The algorithm is designed to enhance contrast and brightness without affecting the near-field region in the ultrasound image. The filtering operations may be performed by a dedicated processor or by a fast general-purpose computer.

Abstract: A control system for providing load sharing between a plurality of compressors. The control system determines the actual coefficients of export flow for the compressors, compares the actual coefficients of export flow with a common or individual coefficients of export flow setpoints generated by one or more central controllers, and then generates control signals for adjusting the operating points of the compressors in order to load balance the compressors.