文章基本信息

标题：Portrait Extraction Algorithm Based on Face Detection and Image Segmentation
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作者：Chongyi Yang ; Wanyu Huang ; Ruoqi Zhang 等
期刊名称：Computer and Information Science
印刷版ISSN：1913-8989
电子版ISSN：1913-8997
出版年度：2019
卷号：12
期号：2
页码：1-13
DOI：10.5539/cis.v12n2p1
出版社：Canadian Center of Science and Education
摘要：The aim of this study was to investigate the academic self-efficacy perceptions of primary school mathematics teacher candidates according to different variables. For this purpose, the “Academic Self-Efficacy Scale”, which was developed by Jerusalem and Schwarz (1981) to measure the academic self-efficacy beliefs of mathematics teacher candidates, which was adapted to Turkish by Yılmaz, Gürçay and Ekici (2007) and validated by the reliability and validity scale, were used as data collection tools. The study was conducted in the fall semester of 2017-2018 academic year. The sample of the study consists of 157 teacher candidates studying at the 1st, 2nd, 3rd and 4th years of the Elementary Mathematics Teaching Program of the Faculty of Education at a state university. Independent sample t-test and ANOVA were used for the analysis of collected information. As a results of data analysis, student’s academic self efficacy perceptions were found generally high. In addition, it was concluded that the mean scores of academic self-efficacy perceptions of mathematics teachers did not show a statistically significant difference according to their gender and grade level, but there was a significant difference between the age, whether they willingly chose what they are studying or not and mathematics achievement groups.
关键词：portrait extraction; image segmentation; GrabCut algorithm; Closed-Form algorithm; license photos’ collecting system