diff --git a/chapter-hsms/figures/survey_formed_mesh_after.jpg b/chapter-hsms/figures/survey_formed_mesh_after.jpg
new file mode 100644
index 0000000..7f6f6a9
Binary files /dev/null and b/chapter-hsms/figures/survey_formed_mesh_after.jpg differ
diff --git a/chapter-hsms/figures/survey_formed_mesh_before.jpg b/chapter-hsms/figures/survey_formed_mesh_before.jpg
new file mode 100644
index 0000000..ad3bf66
Binary files /dev/null and b/chapter-hsms/figures/survey_formed_mesh_before.jpg differ
diff --git a/chapter-hsms/figures/survey_sagem_mesh_unfolded.jpg b/chapter-hsms/figures/survey_sagem_mesh_unfolded.jpg
new file mode 100644
index 0000000..2081072
Binary files /dev/null and b/chapter-hsms/figures/survey_sagem_mesh_unfolded.jpg differ
diff --git a/chapter-hsms/figures/survey_sagem_slot.jpg b/chapter-hsms/figures/survey_sagem_slot.jpg
new file mode 100644
index 0000000..dd4607f
Binary files /dev/null and b/chapter-hsms/figures/survey_sagem_slot.jpg differ