The paper presents the results of a study of the latest MAPD-3NM photodiodes based on silicon with a deeply buried pixel structure. The working parameters of the developed photodiode were determined. The results were compared with the parameters of previously manufactured samples. It was found that this structure has a high photon detection efficiency and internal avalanche amplification at a lower operating voltage.
This paper proposes a new switching median filter for suppressing multi-pixel impulse noise in X-ray images. A multi-pixel impulse is understood as a set of several neighboring pixels, the intensity of each significantly exceeds background intensity. Multi-pixel noise can occur, for example, due to the blooming effect, the reason being the limited value of pixel saturation capacity. This article defines the thresholds for the intensity increment relative to the eight immediate neighbors, above which the current pixel is processed by the median filter. The dependence of these thresholds on the number of pixels in an impulse is presented. The proposed algorithm is based on the median filtering process, which consists of several iterations. In this case, the filter has the smallest possible size, which minimizes image distortion during processing. In particular, to exclude a single-pixel impulse, pixel processing is turned on when intensity surge exceeds 3.5 with the grayscale value ra...
это документ, содержащий ряд инструкций и рекомендаций по позиционированию компании и её самоидентификации. Бренд-бук постулирует отдельные слагаемые имиджа компании с целью формирования её устойчивой положительной репутации среди целевых клиентов. Фактически, бренд-бук — это документ, описывающий основные алгоритмы формирование клиентской лояльности в рамках процесса создания бренда.
(от фр. gris — серый) — техника исполнения и произведение, выполненное кистью одной краской (преимущественно черной или коричневой); изображение создается на основе тональных отношений.