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Table 8 The classification results for different sequences containing possible type of usual and unusual indoor activities using a single camera

From: Context-aware visual analysis of elderly activity in a cluttered home environment

Category Name Ground truth # Of sequences # Of correct classifications
Backward fall Ending sitting Positive 4 3
  Ending lying Positive 4 4
  Ending in lateral position Positive 3 3
  With recovery Negative 4 4
Forward fall On the knees Negative 6 6
  Ending lying flat Positive 11 11
  With recovery Negative 5 5
Lateral fall Ending lying flat Positive 13 12
  With recovery Negative 1 1
Fall from a chair Ending lying flat Positive 8 8
Syncope Vertical slipping and finishing in sitting Negative 2 2
  To sit down on chair and stand up Negative 4 4
  To lie down then to rise up Negative 2 0
Neutral To walk around Negative 1 1
  To bend down then rise up Negative 2 1
  To couch or sneeze Negative 3 3