Difference between revisions of "Data Annotation"

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(Bounding box label)
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==Bounding box label==
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==Bounding box Label==
 
* Annotation file format:  
 
* Annotation file format:  
 
   Img_W Img_H xmin xmax ymin ymax
 
   Img_W Img_H xmin xmax ymin ymax
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By the plot, we suggest using 6 annotations for each image to label.
 
By the plot, we suggest using 6 annotations for each image to label.
 +
 +
==View Point Label==
 +
* Ask labelers to do a selection question with each branch to be a frame sampled from video sequences. We plan to sample those frames from equally distributed angles.

Revision as of 03:31, 5 January 2009

Bounding box Label

  • Annotation file format:
 Img_W Img_H xmin xmax ymin ymax
  • Problems of Current Approach
  1. some images are too large to be displayed within the screen, so have bad annotation.
  2. the "null" string in result should be replaced by -1 -1 -1 -1
  3. the following plot is that, if each image has a certain number of annotations (x axis), how many images can be inferred a true bounding box.

Valid img ratio with respect to num of annotation.png

By the plot, we suggest using 6 annotations for each image to label.

View Point Label

  • Ask labelers to do a selection question with each branch to be a frame sampled from video sequences. We plan to sample those frames from equally distributed angles.