All directional sequence feature description to the shape based on F-histogram

作者：Tian, Zeyu; Men, Chaoguang^*; Liu, Yongmei; Tang, Yanan

来源：Journal of Harbin Engineering University, 2018, 39(1): 114-120.

DOI：10.11990/jheu.201610075

• Description method
• Feature description
• Identification accuracy
• Regional information
• Sequence features
• Shape description
• Shape segmentation
• Shape similarity

To improve the shape description and identification accuracy of 2D objects, an all-directional sequence feature description based on F-histogram is proposed. In this method, the shape is segmented omnidirectionally by the direction lines, the sequential feature description quantity among object segments in the direction line is computed, the omnidirectional sequence feature description quantity of the shape is established, and the similarity among shapes is calculated. The ground object shape data set, MPEG-7 CE-1 Part B shape data set, and Swedish leaf database are used to test the retrieval and identification performance of this method. The method is then compared with other description methods on shape similarity. Experimental results show that this method exhibited high retrieval accuracy. The all-directional sequence feature description method integrates the boundary and regional information of the shape, and it can accurately describe global features and partial features of the shape. This method is invariant to translation, rotation, scaling, and it has strong ability to describe and recognize shapes.

• 出版日期2018
• 单位哈尔滨工程大学