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Spiking Neural Networks Enabled Circuits and Systems for Edge Robots
Spiking Neural Networks Enabled Circuits and Systems for Edge Robots
Spiking Neural Networks Enabled Circuits and Systems for Edge Robots

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자료유형  
 학위논문 서양
최종처리일시  
20260209102902
ISBN  
9798265404909
DDC  
620
저자명  
Lele, Ashwin Sanjay.
서명/저자  
Spiking Neural Networks Enabled Circuits and Systems for Edge Robots
발행사항  
[Sl] : Georgia Institute of Technology, 2023
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2023
형태사항  
154 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-05, Section: B.
주기사항  
Advisor: Raychowdhury, Arijit.
학위논문주기  
Thesis (Ph.D.)--Georgia Institute of Technology, 2023.
초록/해제  
요약Robotic computing at the edge needs to meet multiple constraints on power and form factor while delivering the required performance for power-hungry neural network kernels. This work proposed spiking neural network (SNN) alternatives and augmentations for algorithms and circuits for edge robots. We show SNN-driven locomotion for powerconstrained hexapod robots, SNN-augmented target tracking for high-speed aerial robots and SNN-assisted visual navigation for size-critical micro-robots.The first part (Chapters II and III) of the work extends the rhythmic leg movement of insects to an SNN-based gait generator to demonstrate an online reward-based training method for autonomous learning to walk. We then utilize an event-based vision sensor as the sensory front-end to the hexapod locomotion to show the first spike-only closed-loop robotic platform.In the second part (Chapter IV and V), we observe that SNN and event-camera forms a sensor-processor pair well-suited for high-speed processing while frame-camera with convolutional neural network (CNN) suits the applications with the high-accuracy requirement. This trade-off between accuracy vs. latency in the event and frame-based visual processing arises from the detailed temporal and spatial resolutions captured by event and frame cameras respectively. We utilize these complementary strengths to build high-speed target identification and tracking system with SNN providing high-speed but noisy target estimates with CNN preserving the lost accuracy by providing reliable periodic anchors. We build a heterogeneous SoC with low-power RRAM compute-in-memory mapping CNN and highspeed SRAM compute-near-memory accelerating SNN. We also extend this framework of fused event and frame processing to optical flow to generalize it beyond target tracking applications.The final part (Chapter VI) of the work generalizes the idea of multi-modal processing applied in the previous chapters to divide the robotic computing workloads between CNN perception front-end and SNN localization back-end. Our SoC uses RRAM compute-nearmemory kernels to accelerate CNN-based perception while SRAM compute-in-memory carries out SNN-based localization for micro-robots. To summarize, this work attempted to substitute and augment compute-constrained robotic computing with SNN for energy saving and performance improvement.
일반주제명  
Robots
일반주제명  
Neurons
일반주제명  
Surveillance
일반주제명  
Energy consumption
일반주제명  
Neural networks
일반주제명  
Legs
일반주제명  
Robotics
기타저자  
Georgia Institute of Technology.
기본자료저록  
Dissertations Abstracts International. 87-05B.
전자적 위치 및 접속  
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MARC

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■040    ▼aMiAaPQ▼cMiAaPQ
■0820  ▼a620
■1001  ▼aLele,  Ashwin  Sanjay.
■24510▼aSpiking  Neural  Networks  Enabled  Circuits  and  Systems  for  Edge  Robots
■260    ▼a[Sl]▼bGeorgia  Institute  of  Technology▼c2023
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2023
■300    ▼a154  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-05,  Section:  B.
■500    ▼aAdvisor:  Raychowdhury,  Arijit.
■5021  ▼aThesis  (Ph.D.)--Georgia  Institute  of  Technology,  2023.
■520    ▼aRobotic  computing  at  the  edge  needs  to  meet  multiple  constraints  on  power  and  form  factor  while  delivering  the  required  performance  for  power-hungry  neural  network  kernels.  This  work  proposed  spiking  neural  network  (SNN)  alternatives  and  augmentations  for  algorithms  and  circuits  for  edge  robots.  We  show  SNN-driven  locomotion  for  powerconstrained  hexapod  robots,  SNN-augmented  target  tracking  for  high-speed  aerial  robots  and  SNN-assisted  visual  navigation  for  size-critical  micro-robots.The  first  part  (Chapters  II  and  III)  of  the  work  extends  the  rhythmic  leg  movement  of  insects  to  an  SNN-based  gait  generator  to  demonstrate  an  online  reward-based  training  method  for  autonomous  learning  to  walk.  We  then  utilize  an  event-based  vision  sensor  as  the  sensory  front-end  to  the  hexapod  locomotion  to  show  the  first  spike-only  closed-loop  robotic  platform.In  the  second  part  (Chapter  IV  and  V),  we  observe  that  SNN  and  event-camera  forms  a  sensor-processor  pair  well-suited  for  high-speed  processing  while  frame-camera  with  convolutional  neural  network  (CNN)  suits  the  applications  with  the  high-accuracy  requirement.  This  trade-off  between  accuracy  vs.  latency  in  the  event  and  frame-based  visual  processing  arises  from  the  detailed  temporal  and  spatial  resolutions  captured  by  event  and  frame  cameras  respectively.  We  utilize  these  complementary  strengths  to  build  high-speed  target  identification  and  tracking  system  with  SNN  providing  high-speed  but  noisy  target  estimates  with  CNN  preserving  the  lost  accuracy  by  providing  reliable  periodic  anchors.  We  build  a  heterogeneous  SoC  with  low-power  RRAM  compute-in-memory  mapping  CNN  and  highspeed  SRAM  compute-near-memory  accelerating  SNN.  We  also  extend  this  framework  of  fused  event  and  frame  processing  to  optical  flow  to  generalize  it  beyond  target  tracking  applications.The  final  part  (Chapter  VI)  of  the  work  generalizes  the  idea  of  multi-modal  processing  applied  in  the  previous  chapters  to  divide  the  robotic  computing  workloads  between  CNN  perception  front-end  and  SNN  localization  back-end.  Our  SoC  uses  RRAM  compute-nearmemory  kernels  to  accelerate  CNN-based  perception  while  SRAM  compute-in-memory  carries  out  SNN-based  localization  for  micro-robots.  To  summarize,  this  work  attempted  to  substitute  and  augment  compute-constrained  robotic  computing  with  SNN  for  energy  saving  and  performance  improvement.
■590    ▼aSchool  code:  0078.
■650  4▼aRobots
■650  4▼aNeurons
■650  4▼aSurveillance
■650  4▼aEnergy  consumption
■650  4▼aNeural  networks
■650  4▼aLegs
■650  4▼aRobotics
■690    ▼a0800
■690    ▼a0771
■71020▼aGeorgia  Institute  of  Technology.
■7730  ▼tDissertations  Abstracts  International▼g87-05B.
■790    ▼a0078
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17365956▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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