added debug level logging for GPU inferenciing and distance

inference.py

@@ -301,6 +301,7 @@ def infer_frame(
                 # Add depth to label, e.g. "car 12m"
                 depth_str = f"{int(det['depth_est_m'])}m"
                 label = f"{label} {depth_str}"
+                logging.debug("Object '%s' at %s (bbox: %s)", label, depth_str, det['bbox'])
             display_labels.append(label)
 
     except Exception:
@@ -467,6 +468,8 @@ def run_inference(
             detector_instance = detectors[gpu_idx]
             depth_instance = depth_estimators[gpu_idx] if depth_estimators else None
             
+            logging.debug("Processing frame %d on GPU %d (cuda:%d)", frame_idx, gpu_idx, gpu_idx)
+            
             # Run depth estimation every 3 frames if configured
             active_depth_name = depth_estimator_name if (frame_idx % 3 == 0) else None
             active_depth_instance = depth_instance if (frame_idx % 3 == 0) else None
@@ -570,6 +573,8 @@ def run_segmentation(
             gpu_idx = frame_idx % len(segmenters)
             segmenter_instance = segmenters[gpu_idx]
             
+            logging.debug("Segmenting frame %d on GPU %d (cuda:%d)", frame_idx, gpu_idx, gpu_idx)
+            
             processed, _ = infer_segmentation_frame(
                 frame_data, 
                 text_queries=queries, 
@@ -711,6 +716,8 @@ def process_frames_depth(
             gpu_idx = frame_idx % len(estimators)
             estimator_instance = estimators[gpu_idx]
             
+            logging.debug("Estimating depth for frame %d on GPU %d (cuda:%d)", frame_idx, gpu_idx, gpu_idx)
+            
             # Use instance lock
             if hasattr(estimator_instance, "lock"):
                 lock = estimator_instance.lock