PMID- 28146101
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180212
LR  - 20181113
IS  - 1424-8220 (Electronic)
IS  - 1424-8220 (Linking)
VI  - 17
IP  - 2
DP  - 2017 Jan 30
TI  - Real-Time Straight-Line Detection for XGA-Size Videos by Hough Transform with 
      Parallelized Voting Procedures.
LID - 10.3390/s17020270 [doi]
LID - 270
AB  - The Hough Transform (HT) is a method for extracting straight lines from an edge 
      image. The main limitations of the HT for usage in actual applications are 
      computation time and storage requirements. This paper reports a hardware 
      architecture for HT implementation on a Field Programmable Gate Array (FPGA) with 
      parallelized voting procedure. The 2-dimensional accumulator array, namely the 
      Hough space in parametric form (rho, theta), for computing the strength of each line by 
      a voting mechanism is mapped on a 1-dimensional array with regular increments of 
      theta. Then, this Hough space is divided into a number of parallel parts. The 
      computation of (rho, theta) for the edge pixels and the voting procedure for 
      straight-line determination are therefore executable in parallel. In addition, a 
      synchronized initialization for the Hough space further increases the speed of 
      straight-line detection, so that XGA video processing becomes possible. The 
      designed prototype system has been synthesized on a DE4 platform with a 
      Stratix-IV FPGA device. In the application of road-lane detection, the average 
      processing speed of this HT implementation is 5.4ms per XGA-frame at 200 MHz 
      working frequency.
FAU - Guan, Jungang
AU  - Guan J
AD  - Hiroshima University, 1-3-1 Higashi-Hiroshima, Hiroshima 739-8530, Japan. 
      guanjungang@hiroshima-u.ac.jp.
FAU - An, Fengwei
AU  - An F
AD  - Hiroshima University, 1-3-1 Higashi-Hiroshima, Hiroshima 739-8530, Japan. 
      anfengwei@hiroshima-u.ac.jp.
FAU - Zhang, Xiangyu
AU  - Zhang X
AD  - Hiroshima University, 1-3-1 Higashi-Hiroshima, Hiroshima 739-8530, Japan. 
      zhangxiangyu@hiroshima-u.ac.jp.
FAU - Chen, Lei
AU  - Chen L
AD  - Hiroshima University, 1-3-1 Higashi-Hiroshima, Hiroshima 739-8530, Japan. 
      chen@hiroshima-u.ac.jp.
FAU - Mattausch, Hans Jurgen
AU  - Mattausch HJ
AD  - Hiroshima University, 1-3-1 Higashi-Hiroshima, Hiroshima 739-8530, Japan. 
      hjm@hiroshima-u.ac.jp.
LA  - eng
PT  - Journal Article
DEP - 20170130
PL  - Switzerland
TA  - Sensors (Basel)
JT  - Sensors (Basel, Switzerland)
JID - 101204366
PMC - PMC5336043
OTO - NOTNLM
OT  - 1-dimensional Hough space
OT  - Hough Transform
OT  - synchronized initialization
OT  - video-based straight lines detection
COIS- The authors declare no conflict of interest.
EDAT- 2017/02/02 06:00
MHDA- 2017/02/02 06:01
PMCR- 2017/02/01
CRDT- 2017/02/02 06:00
PHST- 2016/10/31 00:00 [received]
PHST- 2017/01/20 00:00 [accepted]
PHST- 2017/02/02 06:00 [entrez]
PHST- 2017/02/02 06:00 [pubmed]
PHST- 2017/02/02 06:01 [medline]
PHST- 2017/02/01 00:00 [pmc-release]
AID - s17020270 [pii]
AID - sensors-17-00270 [pii]
AID - 10.3390/s17020270 [doi]
PST - epublish
SO  - Sensors (Basel). 2017 Jan 30;17(2):270. doi: 10.3390/s17020270.