Enhanced HMAX model with feedforward feature learning for multiclass categorization

doi:10.3389/fncom.2015.00123

CSpace > 应用数学研究所

	Enhanced HMAX model with feedforward feature learning for multiclass categorization
	Li, Yinlin 1; Wu, Wei 1; Zhang, Bo2 ; Li, Fengfu 2
	2015-10-07
发表期刊	FRONTIERS IN COMPUTATIONAL NEUROSCIENCE
ISSN	1662-5188
卷号	9 页码:14
摘要	In recent years, the interdisciplinary research between neuroscience and computer vision has promoted the development in both fields. Many biologically inspired visual models are proposed, and among them, the Hierarchical Max-pooling model (HMAX) is a feedforward model mimicking the structures and functions of V1 to posterior inferotemporal (PIT) layer of the primate visual cortex, which could generate a series of position- and scale- invariant features. However, it could be improved with attention modulation and memory processing, which are two important properties of the primate visual cortex. Thus, in this paper, based on recent biological research on the primate visual cortex, we still mimic the first 100-150 ms of visual cognition to enhance the HMAX model, which mainly focuses on the unsupervised feedforward feature learning process. The main modifications are as follows: (1) To mimic the attention modulation mechanism of V1 layer, a bottom-up saliency map is computed in the Si layer of the HMAX model, which can support the initial feature extraction for memory processing; (2) To mimic the learning, clustering and short-term memory to long-term memory conversion abilities of V2 and IT, an unsupervised iterative clustering method is used to learn clusters with multiscale middle level patches, which are taken as long-term memory; (3) Inspired by the multiple feature encoding mode of the primate visual cortex, information including color, orientation, and spatial position are encoded in different layers of the HMAX model progressively. By adding a softmax layer at the top of the model, multiclass categorization experiments can be conducted, and the results on Caltech101 show that the enhanced model with a smaller memory size exhibits higher accuracy than the original HMAX model, and could also achieve better accuracy than other unsupervised feature learning methods in multiclass categorization task.
关键词	HMAX biologically inspired feedforward saliency map middle level patch learning feature encoding multiclass categorization
DOI	10.3389/fncom.2015.00123
语种	英语
资助项目	National Natural Science Foundation of China[61210009] ; National Natural Science Foundation of China[61379093]
WOS研究方向	Mathematical & Computational Biology ; Neurosciences & Neurology
WOS类目	Mathematical & Computational Biology ; Neurosciences
WOS记录号	WOS:000362659000001
出版者	FRONTIERS MEDIA SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/20908
专题	应用数学研究所
通讯作者	Zhang, Bo
作者单位	1.Chinese Acad Sci, State Key Lab Management & Control Complex Syst, Inst Automat, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Appl Math, Acad Math & Syst Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Yinlin,Wu, Wei,Zhang, Bo,et al. Enhanced HMAX model with feedforward feature learning for multiclass categorization[J]. FRONTIERS IN COMPUTATIONAL NEUROSCIENCE,2015,9:14.
APA	Li, Yinlin,Wu, Wei,Zhang, Bo,&Li, Fengfu.(2015).Enhanced HMAX model with feedforward feature learning for multiclass categorization.FRONTIERS IN COMPUTATIONAL NEUROSCIENCE,9,14.
MLA	Li, Yinlin,et al."Enhanced HMAX model with feedforward feature learning for multiclass categorization".FRONTIERS IN COMPUTATIONAL NEUROSCIENCE 9(2015):14.