头图渲染bug修复

head_img_sparse/cameras.txt

@@ -0,0 +1,4 @@
+# Camera list with one line of data per camera:
+#   CAMERA_ID, MODEL, WIDTH, HEIGHT, PARAMS[]
+# Number of cameras: 1
+1 PINHOLE 3460 5249 2765.2381577550354 2793.306325513402 1730.0 2624.5

head_img_sparse/images.txt

@@ -0,0 +1,5 @@
+# Image list with two lines of data per image:
+#   IMAGE_ID, QW, QX, QY, QZ, TX, TY, TZ, CAMERA_ID, NAME
+#   POINTS2D[] as (X, Y, POINT3D_ID)
+# Number of images: 32
+1 1.5731778311453921e-06 -0.9999939882958248 -0.003466943528196175 -6.059956329361548e-05 0.012758568267169307 1.5010812761400716 1.312532601201028 1 123_2.jpg