Optimizing video quality, Loop recording save tags applied to a tagged clip – V.I.O. POV.HD User Manual User Manual

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POV.HD  User  Manual  

Tips  and  Guidelines  

 

38  

 

Loop  Recording  

Save  Tags  Applied  to    a  Tagged  Clip  

The  length  of  all  loop  clips  is  equal  to  twice  the  value  of  

Loop  Record  Time  at  time  the  recording  was  done.  

The  length  of  all  tag  clips  are  equal  to  the  value  of  Loop  

Record  Time  at  the  time  Save  Tags  is  run.  

Loop  clips  show  action  that  mostly  occurs  prior  to  the  

tag,  with  a  variable  amount  of  footage  following  the  

tag.

1

 

Save  Tags  creates  clips  that  are  aligned  so  that  half  of  the  clip  

is  prior  to  the  tag  and  half  follows  it.

1

 

The  Loop  method  saves  only  the  loop  clips.  Other  action  

that  occurs  during  the  recording  period  is  not  saved.  

The  original  clip  on  which  Save  Tags  operates  contains  all  of  

the  action  that  occurred  during  the  recording  period.    

Loop  clips  can  be  reviewed  on  the  recorder.  

Tag  clips  made  with  Save  Tags  must  be  uploaded  to  a  

computer  before  they  can  be  viewed.

2

 

Recordings  made  with  Loop  will  usually  require  less  

storage  than  Clip  or  Loop  &  Forward  recordings.

3

 

Using  Save  Tags  on  a  clip  requires  storage  for  both  the  

original  clip  plus  the  tag  clips.  

Table  Notes:  

1

 See  the  diagrams  for  Loop  and  for  Save  Tags,  in  the  preceding  sections.  

2

 Tag  clips  can  be  deleted  from  the  SDHC  card  using  the  recorder  by  deleting  the  tagged  clip  file  on  which  they  

are  based..  They  are  automatically  deleted  when  the  tagged  clip  is  deleted.  

3

 Each  time  you  press  tag  when  using  the  Loop  Record  Method,  a  loop  clip  equal  in  length  to  twice  the  Loop  

Record  Time  is  saved.  If  you  press  tag,  on  the  average,  more  frequently  than  the  length  of  a  saved  Loop,  you  

will  store  a  total  footage  that  is  greater  than  the  total  running  time.  

Optimizing  video  quality  

Ultimately  video  quality  is  in  the  eye  of  the  beholder.  We  can  measure  and  adjust  clarity,  color  accuracy,  color  
depth,  white  balance,  contrast,  and  all  kinds  of  other  things  to  make  the  video  you  take  to  look  as  good  as  
possible  to  you  and  your  friends.  The  POV.HD  includes  both  automatic  controls  that  ensure  high  quality  video  
under  a  wide  variety  of  shooting  conditions  and  manually  adjustable  settings  for  tweaking  video  quality.  
One  of  the  most  difficult  problems  with  hands-­‐free  POV  video  is  that  the  scene  you’re  filming  changes  
continuously  and  since  you  may  be  busy  hanging  on  and  going  as  fast  as  you  can,  the  camera  needs  to  take  
care  of  the  second  to  second  details.  
The  POV.HD  has  built-­‐in  dynamic  exposure  control  and  white  balance  logic  that  constantly  adjusts,  not  just  the  
exposure,  but  the  white  balance,  contrast  level,  and  color  depth  as  well.  Under  almost  any  outdoor  shooting  
conditions  this  results  in  high  quality  video.    
The  POV.HD  adds  four  settings  that  give  you  the  optional  ability  to  tweak  the  frame  processing  logic  to  create  
an  optimal  match  between  prevailing  conditions  and  your  preferences  for  the  look  of  the  final  video.  You  can  
shoot  high  quality  video  all  day  without  ever  thinking  about  these  settings,  but  under  certain  conditions,  using  
the  video  adjustment  settings  can  produce  even  better  results.  With  just  a  bit  of  practice  even  a  novice  can  
learn  when  and  how  to  make  beneficial  adjustments.  If  you’re  familiar  with  the  adjustments  available  on  a  
DSLR  still  camera,  you  will  already  know  about  these  settings.    
Spot  Exposure  Metering  

The  dynamic  exposure  control  logic  works  by  analyzing  the  light  level  and  other  other  key  characteristics  
of  the  image  in  frames  as  their  captured  by  the  camera  head,  and  then  adjusting  the  exposure  level  of  the  
imager  in  the  camera  head  to  compensate  for  changes  in  light  levels.  When  you  ride  from  sunlight  into  
shade,  the  POV.HD  will  automatically  increase  the  exposure  level  to  compensate.  

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