4 research outputs found
Implementing a non-local means method to CTA data of aortic dissection
It is necessary to conserve important information, like edges, details, and textures, in CT aortic dissection images, as this helps the radiologist examine and diagnose the disease. Hence, a less noisy image is required to support medical experts in performing better diagnoses. In this work, the non-local means (NLM) method is conducted to minimize the noise in CT images of aortic dissection patients as a preprocessing step to produce accurate aortic segmentation results. The method is implemented in an existing segmentation system using six different kernel functions, and the evaluation is done by assessing DSC, precision, and recall of segmentation results. Furthermore, the visual quality of denoised images is also taken into account to be determined. Besides, a comparative analysis between NLM and other denoising methods is done in this experiment. The results showed that NLM yields encouraging segmentation results, even though the visualization of denoised images is unacceptable. Applying the NLM algorithm with the flat function provides the highest DSC, precision, and recall values of 0.937101, 0.954835, and 0.920517 consecutively
ΠΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΡΠΉ Π»ΠΈΠ½Π³Π²ΠΎΡΡΠΈΠ»ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠΉ Π°Π½Π°Π»ΠΈΠ· ΡΠ΅ΠΊΡΡΠΎΠ² Π½Π°ΡΡΠ½ΠΎΠ³ΠΎ ΡΡΠΈΠ»Ρ Π² ΡΡΠ΅ΡΠ΅ ΡΠ½Π΅ΡΠ³Π΅ΡΠΈΠΊΠΈ (Π½Π° ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»Π΅ ΡΡΠ°ΡΠ΅ΠΉ ΠΈΠ· ΠΆΡΡΠ½Π°Π»Π° "Π’Π΅ΠΏΠ»ΠΎΡΠΈΠ·ΠΈΠΊΠ° Π²ΡΡΠΎΠΊΠΈΡ ΡΠ΅ΠΌΠΏΠ΅ΡΠ°ΡΡΡ")
ΠΡΠ΅Π΄ΠΏΠ΅ΡΠ΅Π²ΠΎΠ΄ΡΠ΅ΡΠΊΠΈΠΉ Π°Π½Π°Π»ΠΈΠ· - ΡΡΠΎ ΡΡΠ»ΠΎΠ²ΠΈΠ΅ ΠΏΠΎΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π³ΡΠ°ΠΌΠΎΡΠ½ΠΎ Π²ΡΠΏΠΎΠ»Π½Π΅Π½Π½ΠΎΠ³ΠΎ ΡΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π»ΠΈΠ½Π³Π²ΠΎΡΡΠΈΠ»ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ Π°Π½Π°Π»ΠΈΠ·Π° ΠΏΠΎΠ΄Π»ΠΈΠ½Π½ΠΈΠΊΠ° ΠΈ ΠΏΠ΅ΡΠ΅Π²ΠΎΠ΄Π°, Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΊΠΎΡΠΎΡΠΎΠ³ΠΎ ΠΌΠΎΠΆΠ½ΠΎ ΠΎΠ±Π½Π°ΡΡΠΆΠΈΡΡ ΠΏΠ΅ΡΠ΅Π²ΠΎΠ΄ΡΠ΅ΡΠΊΠΈΠ΅ ΡΠ΄Π°ΡΠΈ ΠΈ ΠΏΠΎΡΠ΅ΡΠΈ. Π ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ ΡΡΠΈΠ»ΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΡΡΠ΅Π΄ΡΡΠ²Π°, ΠΊΠΎΡΠΎΡΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΡΡ ΠΊΠ°ΠΆΠ΄ΡΡ ΡΡΠΈΠ»Π΅Π²ΡΡ ΡΠ΅ΡΡΡ Π½Π° Π³ΡΠ°ΠΌΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΌ, ΡΠΈΠ½ΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΎΠΌ ΠΈ ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΎΠΌ ΡΡΠΎΠ²Π½ΡΡ
. The pre-translation analysis is a condition of a logical consistent correctly made comparative linguistic analysis ofan original text and its translation, where you can find translation successes and losses. This article examines the stylistic means that characterize each style feature on the grammatical, syntactic and morphological levels