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LeRec: a NN/HMM hybrid for on-line handwriting recognition.
Neural Comput
November 1995
AT&T Bell Laboratories, Holmdel, NJ 07733, USA.
We introduce a new approach for on-line recognition of handwritten words written in unconstrained mixed style. The preprocessor performs a word-level normalization by fitting a model of the word structure using the EM algorithm. Words are then coded into low resolution "annotated images" where each pixel contains information about trajectory direction and curvature.
View Article and Find Full Text PDFReal-time separation of multineuron recordings with a DSP32C signal processor.
J Neurosci Methods
April 1995
Department of Neurobiology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.
We have developed a hardware and software package for real-time discrimination of multiple-unit activities recorded simultaneously from multiple microelectrodes using a VME-Bus system. Compared with other systems cited in literature or commercially available, our system has the following advantages. (1) Each electrode is served by its own preprocessor (DSP32C); (2) On-line spike discrimination is performed independently for each electrode.
View Article and Find Full Text PDFThis study describes the application of an Apple IIe microcomputer in combination with a pre-processor in the on-line calculation of haemodynamic variables of the isolated working rat heart and of relative rapid changes in these variables, induced by variations in left atrial filling pressure (preload) and end-diastolic aortic pressure (afterload). Variables such as heart rate, systolic and diastolic left ventricular pressure, the maximal positive and negative first derivative of the left ventricular pressure, systolic and diastolic aortic pressure and aortic flow were continuously calculated and printed at minimal intervals of 6 s. A newly designed procedure to detect the activation of the electrogram, which was necessary to start the detection of a new cardiac cycle, is described.
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