Title
A High-Speed Vision System with Multithread Automatic Exposure Control for High-Dynamic-Range Imaging.
Abstract
In this study, we develop a real-time high-frame-rate vision system with frame-by-frame automatic exposure (AE) control that can simultaneously synthesize multiple images with different exposure times into a high-dynamic-range (HDR) image for scenarios with dynamic change in illumination. By accelerating the video capture and processing for time-division multithread AE control at the millisecond level, the proposed system can virtually function as multiple AE cameras with different exposure times. This system can capture color HDR images of 512 x 512 pixels in real time at 500 fps by synthesizing four 8-bit color images with different exposure times at consecutive frames, captured at an interval of 2 ms, with pixel-level parallel processing accelerated by a GPU (Graphic Processing Unit) board. Several experimental results for scenarios with a large change in illumination are demonstrated to confirm the performance of the proposed system for real-time HDR imaging.
Year
DOI
Venue
2018
10.20965/jrm.2018.p0117
JOURNAL OF ROBOTICS AND MECHATRONICS
Keywords
Field
DocType
high-speed vision,AE control,color tracking,HDR imaging
Computer vision,High speed vision,Computer science,Artificial intelligence,High-dynamic-range imaging,Automatic exposure control
Journal
Volume
Issue
ISSN
30
1
0915-3942
Citations 
PageRank 
References 
0
0.34
4
Authors
5
Name
Order
Citations
PageRank
Xianwu Jiang100.34
Qingyi Gu215322.13
Tadayoshi Aoyama36928.58
Takeshi Takaki422238.04
Idaku Ishii535564.37