Presentation 2019-12-20
An Efficient Block-wise Object Detection Method using Consecutive Frames for High Resolution Video
Kazuki Hozumi, Yoichi Tomioka,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) In recent years, in the fields such as surveillance cameras and in-vehicle camera systems, efficient deep-learning-based object detection methods, such as Single Shot MultiBox Detector (SSD), that do not require window scanning have received a significant attention. However, these methods require a lot of memory and computation. For this reason, when we apply them to higher definition video, it can be necessary to divide the video into multiple blocks for inference processing due to restrictions on memory capacity of GPUs or FPGAs. However, the detection accuracy of objects near the block division boundary can be low. Although we can use overlap blocks to reduce the effects of block boundary, it increases the number of blocks and execution time. In this paper, we propose a method for reducing the execution time per frame, which assigns a different pattern to each fame and integrates the results of object detection from multiple frames. In the experiments, the object detection accuracy was evaluated using three data from the Multiple Object Tracking Benchmark dataset 2017. We reduced the number of blocks per frames to 55.6% while the accuracy denegeration is within 4.5%.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Convolutional neural network / Deep learning / Object detection / Single Shot Multibox Detector Detector
Paper # PRMU2019-57
Date of Issue 2019-12-12 (PRMU)

Conference Information
Committee PRMU
Conference Date 2019/12/19(2days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yoichi Sato(Univ. of Tokyo)
Vice Chair Toru Tamaki(Hiroshima Univ.) / Akisato Kimura(NTT)
Secretary Toru Tamaki(NTT) / Akisato Kimura(OMRON SINICX)
Assistant Yusuke Uchida(DeNA) / Takayoshi Yamashita(Chubu Univ.)

Paper Information
Registration To Technical Committee on Pattern Recognition and Media Understanding
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) An Efficient Block-wise Object Detection Method using Consecutive Frames for High Resolution Video
Sub Title (in English)
Keyword(1) Convolutional neural network
Keyword(2) Deep learning
Keyword(3) Object detection
Keyword(4) Single Shot Multibox Detector Detector
1st Author's Name Kazuki Hozumi
1st Author's Affiliation University of Aizu(UoA)
2nd Author's Name Yoichi Tomioka
2nd Author's Affiliation University of Aizu(UoA)
Date 2019-12-20
Paper # PRMU2019-57
Volume (vol) vol.119
Number (no) PRMU-347
Page pp.pp.69-74(PRMU),
#Pages 6
Date of Issue 2019-12-12 (PRMU)