This paper presents a lossy compression scheme for biomedical images by using a new method. Image data compression using Vector Quantization (VQ) has received a lot of attention because of its simplicity and adaptability. VQ requires the input image to be processed as vectors or blocks of image pixels. The Finite-state vector quantization (FSVQ) is known to give better performance than the memory less vector quantization (VQ). This paper presents a novel combining technique for image compression based on the Hierarchical Finite State Vector Quantization (HFSVQ) and the neural network. The algorithm performs nonlinear restoration of diffraction-limited images concurrently with quantization. The neural network is trained on image pairs consisting of a lossless compression named hierarchical vector quantization. Simulations results are presented that demonstrate improvements in visual quality and peak signal-to-noise ratio of the restored images.
The article sets into focus the everyday practices of caring the sick in the Poor Clares’ convents of Bratislava, Trnava, Zagreb, Buda and Pest with a time scope focused on the era of Maria Theresa’s and Joseph II’s church reforms. It evinces that each convent had an infirmary, in which the sill nuns could be separated from the rest of the community and nursed according to the instructions of a doctor, but the investigation of the rooms and their equipment also reveals significant differences among them. While the infirmary was merely a sickroom with three or four beds in the case of the smaller communities of Zagreb and Pest, the bigger convents’ infirmaries - that accommodated nine-twelve patients - consisted of a complex set of interconnected spaces with various functions, including storage rooms, cooking facilities and places for making medicine. The infirmary chapels of Bratislava and Trnava and the liturgical equipment in the bigger, hall-like sickroom in Buda represent the interconnectedness of spiritual and medical care. The study also sheds light on possible correlations between self-supply and services provided by external lay practitioners, as it presents the strategies of the convents to reduce medical expenses, e.g. by producing medicaments, accepting novices with surgical-apothecary knowledge or contracting surgeons and physicians for a fixed annual salary. Finally, the paper points towards further research directions suggesting a more sophisticated analysis of the correlations between the nuns’ demand for proper medical care and their agency at the time of the abolition of their order in 1782., Katalin Pataki., and Obsahuje bibliografické odkazy
Zpráva z 40. ročníku mezinárodní konference MEDREM, uskutečněné 3. - 6. července 2014 v Birminghamu., Veronika Mráčková - Jan Baťa., Rubrika: Konference, and Cizojazyčné resumé není.