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Update bbox chunks recovery in VideoMatting #66

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Update bbox chunks recovery in VideoMatting #66

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cd51203
[VideoMatting] Recover merged data from json file
demoulinv Aug 6, 2026
c0d8e72
[VideoMatting] Add list of prompts in metadata
demoulinv Aug 6, 2026
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2 changes: 2 additions & 0 deletions meshroom/videoMatting/VideoMatting.py
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Original file line number Diff line number Diff line change
Expand Up @@ -295,6 +295,8 @@ def processChunk(self, chunk):
metadata_boxes[first_frame_id + frame_id] = {}

logger.debug(f"bboxes.keys() = {bboxes.keys()}")
prompts = [key.rsplit('_', 1)[0] for key in bboxes.keys()]
metadata_deep_model_base["Meshroom:mrSegmentation:Prompt"] = ";".join(list(dict.fromkeys(prompts)))

full_alpha = {}
img, h_ori, w_ori, p_a_r, orientation = image.loadImage(str(chunk_image_paths[0][0]), True)
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40 changes: 15 additions & 25 deletions segmentationRDS/bboxUtils.py
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Expand Up @@ -217,38 +217,28 @@ def extract_tracking(

for label, directions in data.items():
forward = directions.get("forward", {})
backward = directions.get("backward", {})
merged = directions.get("merged", {})

all_object_ids = set()
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for frame_data in forward.values():
all_object_ids.update(frame_data.keys())
for frame_data in backward.values():
all_object_ids.update(frame_data.keys())
if merged:
for frame_data in merged.values():
all_object_ids.update(frame_data.keys())
else:
for frame_data in forward.values():
all_object_ids.update(frame_data.keys())

for obj_id in sorted(all_object_ids, key=int):
key = f"{label}_{obj_id}"
raw_boxes = {}

all_frames = sorted(
set(forward.keys()) | set(backward.keys()),
key=int
)

# Merge forward/backward (in source space) ---
for frame_idx in all_frames:
fwd_box = forward.get(frame_idx, {}).get(obj_id)
bwd_box = backward.get(frame_idx, {}).get(obj_id)

if fwd_box and bwd_box:
box, _ = merge_boxes(fwd_box, bwd_box, iou_threshold)
elif fwd_box:
box = fwd_box
elif bwd_box:
box = bwd_box
else:
continue

raw_boxes[int(frame_idx)] = box
if merged:
all_frames = sorted(set(merged.keys()),key=int)
for frame_idx in all_frames:
raw_boxes[int(frame_idx)] = merged.get(frame_idx, {}).get(obj_id)
else:
all_frames = sorted(set(forward.keys()),key=int)
for frame_idx in all_frames:
raw_boxes[int(frame_idx)] = forward.get(frame_idx, {}).get(obj_id)

# --- compute target size ---
target_size_w, target_size_h = get_target_size(raw_boxes, par, roundCrop, squareBox, exp_factor)
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