fix issues for random init bugs

[cv-lab-x]

fix errors for if the struct didn't be init befor being used, sometimes it will be random number, so the ref_id 0 is not be passed to struct roblem ref_id correctly.

`[ITER 1] Saving Gaussians [02/03 19:59:31] Training progress: 3%|█████▋ | 1010/30000 [01:21<34:26, 14.03it/s, Loss=0.3947600]terminate called after throwing an instance of 'cv::Exception' what(): OpenCV(4.5.4) ./modules/core/src/matrix_expressions.cpp:24: error: (-5:Bad argument) Matrix operand is an empty matrix. in function 'checkOperandsExist'

Aborted (core dumped) Traceback (most recent call last): File "train.py", line 372, in training(lp.extract(args), op.extract(args), pp.extract(args), args.test_iterations, args.save_iterations, args.checkpoint_iterations, args.start_checkpoint, args.debug_from) File "train.py", line 129, in training propagated_depth, cost, normal = read_propagted_depth('./cache/propagated_depth') File "GaussianPro/utils/general_utils.py", line 244, in read_propagted_depth cost = readDepthDmb(os.path.join(path, 'costs.dmb')) File "GaussianPro/utils/general_utils.py", line 192, in readDepthDmb inimage = open(file_path, "rb") FileNotFoundError: [Errno 2] No such file or directory: './cache/propagated_depth/costs.dmb`

debug info:

ref_id, problem_refid : 0, 162345789 Processing image 162345789... ref id: 162345789 ./cache/propagated_depth

[kcheng1021]

Thanks for your debuging. But we found why the ref_id 0 is not be passed. Please refer to Issue #8

[cv-lab-x]

Thanks for your debuging. But we found why the ref_id 0 is not be passed. Please refer to Issue #8

ok ,that's great