visual3d:documentation:pipeline:signal_commands:compute_volume_of_chest_wall
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visual3d:documentation:pipeline:signal_commands:compute_volume_of_chest_wall [2024/06/19 14:03] – created sgranger | visual3d:documentation:pipeline:signal_commands:compute_volume_of_chest_wall [2024/07/17 15:46] (current) – created sgranger | ||
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+ | ====== Compute Volume Of Chest Wall ====== | ||
+ | |||
This command is based on the article by Ferrigno et al (1994) J Appl Physiol 77(3) 1224-1231. | This command is based on the article by Ferrigno et al (1994) J Appl Physiol 77(3) 1224-1231. | ||
- | ===== Marker Placement | + | ==== Marker Placement ==== |
The command expects all 32 vertices described in the article. | The command expects all 32 vertices described in the article. | ||
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If any markers/ | If any markers/ | ||
- | {{ChestWall1.jpg}} | + | {{:ChestWall1.jpg}} |
\\ | \\ | ||
- | ===== Pipeline Command | + | ==== Pipeline Command ==== |
**Compute_Volume_Of_Chest_Wall** | **Compute_Volume_Of_Chest_Wall** | ||
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! / | ! / | ||
**;** | **;** | ||
- | ===== Units ===== | + | ==== Units ==== |
Visual3D uses MKS units throughout the analyses. The only exceptions are joint angles which are represented in degrees. | Visual3D uses MKS units throughout the analyses. The only exceptions are joint angles which are represented in degrees. | ||
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Note that 1 m^3= 1000 liters | Note that 1 m^3= 1000 liters | ||
- | ===== Compute_Volume_Of_A_Convex_Hull | + | ==== Compute_Volume_Of_A_Convex_Hull ==== |
- | {{ChestWall2.jpg}} | + | {{:ChestWall2.jpg}} |
In Figure 2 the volume of the highlighted volume can be computed as a convex hull. | In Figure 2 the volume of the highlighted volume can be computed as a convex hull. | ||
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The volume of the chest wall is the sum of the volumes of the sub regions. | The volume of the chest wall is the sum of the volumes of the sub regions. | ||
- | ==== Output signal | + | === Output signal === |
The resulting signal contains two components. The first component is the volume The second component is the number of vertices that were available at that frame for computing the volume. | The resulting signal contains two components. The first component is the volume The second component is the number of vertices that were available at that frame for computing the volume. |
visual3d/documentation/pipeline/signal_commands/compute_volume_of_chest_wall.1718805800.txt.gz · Last modified: 2024/06/19 14:03 by sgranger