Fixed counting of tracks when calculating analytics report (#8088)

changelog.d/20240626_100703_boris_fixed_analytics.md

@@ -0,0 +1,4 @@
+### Fixed
+
+- Incorrect counting of tracked shapes when computing analytics report
+  (<https://github.com/cvat-ai/cvat/pull/8088>)

cvat/apps/analytics_report/report/primary_metrics/annotation_speed.py

@@ -111,16 +111,31 @@ def get_track_count():
 
             count = 0
             for track in db_tracks:
+                # Skip processing if no shapes are associated with the track
+                if not track["shapes"]:
+                    continue
+
+                # Skip skeleton shapes as their points are already counted
                 if track["shapes"] and track["shapes"][0]["type"] == ShapeType.SKELETON:
-                    # skeleton's points are already counted as objects
                     continue
 
+                # If only one shape exists, calculate the frames from the first frame to the stop frame of the segment
                 if len(track["shapes"]) == 1:
                     count += self._db_obj.segment.stop_frame - track["shapes"][0]["frame"] + 1
+                    continue
 
+                # Add the initial frame count and then iterate through shapes to count non-outside frames
+                count += 1
                 for prev_shape, cur_shape in zip(track["shapes"], track["shapes"][1:]):
                     if not prev_shape["outside"]:
-                        count += cur_shape["frame"] - prev_shape["frame"] + 1
+                        count += cur_shape["frame"] - prev_shape["frame"]
+
+                # Add frames until the end of segment if the latest shape was not outside
+                if (
+                    not cur_shape["outside"]
+                    and cur_shape["frame"] < self._db_obj.segment.stop_frame
+                ):
+                    count += self._db_obj.segment.stop_frame - cur_shape["frame"]
 
             return count