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2 publications found

Context-aware multipath networks

Dumindu Tissera, Kumara Kahatapitiya, Rukshan Darshana Wijesinghe, Shantha Fernando, Ranga Rodrigo

Preprint arXiv arXiv preprint arXiv:1907.11519 · 2019 · Cited by 10

Computer VisionEmbedded Systems and Computer ArchitectureHardware Acceleration and Co-design

Abstract

Making a single network effectively address diverse contexts---learning the variations within a dataset or multiple datasets---is an intriguing step towards achieving generalized intelligence. Existing approaches of deepening, widening, and assembling networks are not cost effective in general. In view of this, networks which can allocate resources according to the context of the input and regulate flow of information across the network are effective. In this paper, we present Context-Aware Multipath Network (CAMNet), a multi-path neural network with data-dependant routing between parallel tensors. We show that our model performs as a generalized model capturing variations in individual datasets and multiple different datasets, both simultaneously and sequentially. CAMNet surpasses the performance of classification and pixel-labeling tasks in comparison with the equivalent single-path, multi-path, and deeper single-path networks, considering datasets individually, sequentially, and in combination. The data-dependent routing between tensors in CAMNet enables the model to control the flow of information end-to-end, deciding which resources to be common or domain-specific.

Hardware and software co-design for object detection with modified vibe algorithm and particle filtering based object tracking

Yasitha M Wijesinghe, Jayathu Samarawickrama, Dileeka Dias

Conference ICIIS 2019 14th Conference on Industrial and Information Systems (ICIIS) , pp. 506-511 · 2019 · Cited by 5

Computer VisionEmbedded Systems and Computer ArchitectureHardware Acceleration and Co-design

Abstract

This paper describes a hardware and software codesign approach for object detection and tracking algorithm which is based on modified ViBe background subtraction method and scale adaptable particle filtering algorithm. The modified ViBe performs with a close accuracy to the original work of ViBe but with less complexity and it outperforms the Mixture of Gaussian(MoG) method. Since the modified algorithm has a low off chip memory access requirement, the real time object detection in embedded level with the help of hardware acceleration techniques could be achieved. The implemented particle filtering algorithm is capable of adapting to the scale variation of the tracking objects. After careful investigation of the time consumption profile of each function in our algorithm, the complete algorithm was implemented in IoT edge devices targeted Avnet Ultra 96 development board which is based on Xilinx Zynq …