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Connected-component labeling Etichettamento di componenti connesse Εξαγωγή μπλομπ 连通分量标记
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Etichettamento di componenti connesse, o labelling delle componenti connesse, è un'applicazione algoritmica della teoria dei grafi, nella quale sottoinsiemi di componenti connesse vengono etichettate in modo univoco sulla base di dati euristici. Non va confusa con la segmentazione di immagini.L'etichettamento di componenti connesse è di uso in computer vision per rilevare regioni connesse in immagini digitali binarie, sebbene si presti anche all'elaborazione di immagini a colori e con dati ad alta dimensionalità. Στη τεχνολογία της όρασης υπολογιστών (που σχετίζεται μα δεν είναι το ίδιο με την μηχανική όραση), η διαδικασία εξαγωγής μπλομπ (blob extraction) επιτρέπει τη κατηγοριοποίηση εικονοστοιχείων μιας ψηφιακής εικόνας σε ξεχωριστές ομάδες. Η εξαγωγή μπλομπ συνήθως εφαρμόζεται σε μια που είναι αποτέλεσμα από ένα thresholding step. Τα μπλομπ μπορεί να μετρηθούν, να φιλτραριστούν, και να παρακολουθηθούν. Υπάρχουν δυο διάσημοι αλγόριθμοι για αυτή τη διαδικασία, ένας βηματικός αλγόριθμος (sequential) κι ένας επαναλαμβανόμενος (recursive). 连通分量标记(或者称连通分量分析,连通区域标记)是图论应用中的一种算法,给二值图像中的每个连通区域标上一个特定的标号。该算法可用来对图像的目标进行定位和计数。该算法不要和图像分割相混淆。 连通分量标记通常在计算机视觉领域中对二值图像的连通区域进行检测,也可以处理彩色图像和更高维的数据。当将其集成到系统或者是人机交互系统时,该算法也起到重要作用。 Connected-component labeling (CCL), connected-component analysis (CCA), blob extraction, region labeling, blob discovery, or region extraction is an algorithmic application of graph theory, where subsets of connected components are uniquely labeled based on a given heuristic. Connected-component labeling is not to be confused with segmentation. Blob extraction is related to but distinct from blob detection.
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Connected-component labeling (CCL), connected-component analysis (CCA), blob extraction, region labeling, blob discovery, or region extraction is an algorithmic application of graph theory, where subsets of connected components are uniquely labeled based on a given heuristic. Connected-component labeling is not to be confused with segmentation. Connected-component labeling is used in computer vision to detect connected regions in binary digital images, although color images and data with higher dimensionality can also be processed. When integrated into an image recognition system or human-computer interaction interface, connected component labeling can operate on a variety of information. Blob extraction is generally performed on the resulting binary image from a thresholding step, but it can be applicable to gray-scale and color images as well. Blobs may be counted, filtered, and tracked. Blob extraction is related to but distinct from blob detection. 连通分量标记(或者称连通分量分析,连通区域标记)是图论应用中的一种算法,给二值图像中的每个连通区域标上一个特定的标号。该算法可用来对图像的目标进行定位和计数。该算法不要和图像分割相混淆。 连通分量标记通常在计算机视觉领域中对二值图像的连通区域进行检测,也可以处理彩色图像和更高维的数据。当将其集成到系统或者是人机交互系统时,该算法也起到重要作用。 Etichettamento di componenti connesse, o labelling delle componenti connesse, è un'applicazione algoritmica della teoria dei grafi, nella quale sottoinsiemi di componenti connesse vengono etichettate in modo univoco sulla base di dati euristici. Non va confusa con la segmentazione di immagini.L'etichettamento di componenti connesse è di uso in computer vision per rilevare regioni connesse in immagini digitali binarie, sebbene si presti anche all'elaborazione di immagini a colori e con dati ad alta dimensionalità. La tecnica di etichettamento di componenti connesse è correlata con il riconoscimento di regioni. Στη τεχνολογία της όρασης υπολογιστών (που σχετίζεται μα δεν είναι το ίδιο με την μηχανική όραση), η διαδικασία εξαγωγής μπλομπ (blob extraction) επιτρέπει τη κατηγοριοποίηση εικονοστοιχείων μιας ψηφιακής εικόνας σε ξεχωριστές ομάδες. Η εξαγωγή μπλομπ συνήθως εφαρμόζεται σε μια που είναι αποτέλεσμα από ένα thresholding step. Τα μπλομπ μπορεί να μετρηθούν, να φιλτραριστούν, και να παρακολουθηθούν. Υπάρχουν κι άλλα ονόματα για αυτή τη τεχνική, και οι ειδικοί δεν έχουν κατασταλάξει σε μια ονομασία. Τα άλλα ονόματα είναι ταμπελοποίηση περιοχών (region labeling), ταμπελοποίηση συνδεδεμένων μερών (connected-component labeling), ανακάλυψη των μπλομπ (blob discovery), ή εξαγωγή περιοχών (region extraction). Υπάρχουν δυο διάσημοι αλγόριθμοι για αυτή τη διαδικασία, ένας βηματικός αλγόριθμος (sequential) κι ένας επαναλαμβανόμενος (recursive). Η εξαγωγή μπλομπ σχετίζεται μεν, μα δεν είναι το ίδιο δε, με την (blob detection).
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