Michail Zubarev

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—We propose a new method to embed data in binary images, including scanned text, figures, and signatures. Our method relies on the concept of wet paper codes. The shuffling before embedding is used in order to equalize irregular embedding capacity from diverse areas in the image. The hidden data can be extracted without the original binary image. We(More)
In order to detect left ventricular systolic function and diastolic time intervals using a new improved bioimpedance polyrheocardiographic system (BPCS), 110 healthy subjects and 128 patients with myocardial infarction were examined. Twenty-four simultaneous measurements of cardiac output by thermodilution and BPCS were performed in 11 patients with(More)
With a view to facilitating early diagnosis of myocardial infarction, the diagnostic significance was studied of 12 standard electrocardiographic leads and of accessory leads according to Nehb, Gurevich, and Slapak-Partilla. Attention was paid to the deflexion of the pathological vector from the positions of active electrodes in the above systems on the(More)
Central hemodynamic parameters were assessed by tetrapolar chest rheography during rationed isometric pedal stress exposure in 54 normal subjects and 24 angina patients. The relationship between left-ventricular contractility and the magnitude of increasing static effort at different steps of stress exposure was examined. In normal subjects, the increase in(More)
The management of 164 patients with a paroxysm of angina pectoris by a cardiologic emergency aid unit included, besides a clinical examination, the recording of the ECG in 12 commonly accepted and additional leads suggested by Neb, N.F. Gurevich, and Slapac--Partilla. The values of the atrial and the end portion of the ventricular complexes of the ECG were(More)
A hypokinetic pattern of circulation (HKC) was revealed in 53 (63.1%) out of 84 patients with acute myocardial infarction (AMI) free of congestive cardiac insufficiency at rest examined upon discharge from hospital. Resting ++rheography evidence for pumping and constrictive cardiac functions fails to recognize CCI in stage I. A hemodynamic criterion of CCI(More)