研究文章

无线多媒体传感器网络分布图像压缩架构

算法3

Distributed  image  compression.
CN  selects  the  highest-energy  SN  in  the  camera  cluster  as  the  image  compression  cluster  head  (ICH)
if节点ICH并发
ifNode  receives  image  from  the  CN并发
Select  a  specified  number  of  SNs  that  have  the  highest  energy
in  the  image  compression  cluster  as  the  members
ifHas  member  in  image  compression  clusterthe  shortcut  tasks  are
greater  than  its  normal  tasks并发
ICH  applies  one  level  of  DWT  on  the  image
ICH  encodes  HH,  HL,  and  LH
ICH  sends  the  LL  to  nearest  member  node  in  the  image  compression  cluster
易斯语
ICH  performs  all  compression  tasks
ICH  sends  the  compressed  data  to  the  ICH's  communication  CH
结束if
结束if
ifCompression  tasks  are  finished并发
ICH  combines  all  compressed  data  and  sends  them  to  the  ICH's  communication  CH
结束if
万一Node  is  member  of  the  image  compression  cluster并发
ifNode  receives  LL  from  another  SN  in  the  image  compression  cluster并发
Find  the  next-nearest  SN  in  the  image  compression  cluster
ifHas  the  next-nearest  node  in  image  compression  cluster并发
Node  applies  one  level  of  DWT  on  LL  of  the  previous  level
Node  encodes  HH,  HL,  and  LH  and  sends  the  compressed  data  to  the  ICH
Node  sends  the  LL  of  this  level  to  the  nearest   member  node  in  the  image
compression  cluster
易斯语
Node  performs  the  remaining  compression  tasks
Node  sends  the  compressed  data  to  the  ICH
结束
结束
结束if