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About input size 608*608 vs 416*416

Open huaze555 opened this issue 6 years ago • 12 comments
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Hi chen, thank for your pretty work! I hava a problem. If i set the input size is 608608, the result is wrong, and set to 416416 the result seems ok. but the input of yolov3.cfg is 608*608. can you help me?

huaze555 avatar Dec 14 '18 14:12 huaze555

Sorry reply for you so late.I have updated code which support input size 608x608, but you should change some thing.First,you should change input data nxcxhxw=1x3x608x608.Second,you should change yolo_layer.h netWxnetH = 608x608. Good lucky for you.

ChenYingpeng avatar Dec 29 '18 03:12 ChenYingpeng

@ChenYingpeng thanks very much!

huaze555 avatar Dec 29 '18 03:12 huaze555

@ChenYingpeng 你好,你的函数接口里,是输入一张图片的路径,然后进行检测。如果我想对一个opencv 的Mat类型图片,进行检测,该怎么做呢?

huaze555 avatar Dec 29 '18 10:12 huaze555

你看看我的源代码其实是用opencv去load的,我记得没错的话是用iplimage的格式,你只要做一下转换就行了!

ChenYingpeng avatar Dec 30 '18 07:12 ChenYingpeng

@ChenYingpeng 作者你好,有一个新问题,关于将darknet的weights模型转成caffemodel的。像之前的yolov3.weights能正常转换,但是最新开放的新模型yolov3-spp.weights,转不了,会报错。能提供些思路吗?

huaze555 avatar Jan 16 '19 06:01 huaze555

我看了一下,yolov3-spp.cfg的配置文件,主要是因为spp那个模块里面有个route层里面有4个参数,这个在我的darknet2caffe.py文件里面是不支持的。我只写了支持1或者2个参数的方式,所以你需要按照那个方式自己增加一个支持4个参数的,应该就可以了。不过我自己还没测试,希望你测试玩可以共享一下。

ChenYingpeng avatar Jan 16 '19 07:01 ChenYingpeng

@ChenYingpeng 大哥,你能帮忙先补充一下支持4个参数的代码吗? 然后我再测试一下。我对这块代码比较欠缺,不太会搞。拜托啦 ~

huaze555 avatar Jan 16 '19 07:01 huaze555

@ChenYingpeng 依葫芦画瓢,我搞了一天,也没搞出来,,这应该怎么弄呀,大神求帮助 if (4 == bottom_layer_size): prev_layer_id1 = layer_id + int(layer_name[0]) # print(prev_layer_id1) prev_layer_id2 = layer_id + int(layer_name[1]) prev_layer_id3 = layer_id + int(layer_name[2]) prev_layer_id4 = layer_id + int(layer_name[3]) print(topnames) bottom1 = topnames[prev_layer_id1] bottom2 = topnames[prev_layer_id2] bottom3 = topnames[prev_layer_id3] bottom4 = topnames[prev_layer_id4] route_layer['bottom'] = [bottom1, bottom2, bottom3, bottom4]

huaze555 avatar Jan 18 '19 07:01 huaze555

@huaze555 Update yolov3_darknet2caffe.py and support yolov3-spp.Good luck!

ChenYingpeng avatar Jan 25 '19 02:01 ChenYingpeng

@ChenYingpeng 非常感谢!! 您新提交的代码,除了支持转换spp模型,还支持tiny模型是吗?除了这两个改进,有其它代码层面的优化吗?我现在遇到一个问题,转换后的模型和在darknet跑的模型,对于同一张图片的检测框,有几十个像素值的偏差,框的置信度也会有偏差,不知道问题出在哪里。

huaze555 avatar Jan 25 '19 10:01 huaze555

@huaze555 你好,请问你转caffemodel的脚本用的是作者给的么,我用作者给的遇到一个问题,prototxt能够成功生成,但是在生成caffemodel的时候有个报错: Traceback (most recent call last): File "yolov3_darknet2caffe.py", line 533, in darknet2caffe(cfgfile, weightfile, protofile, caffemodel) File "yolov3_darknet2caffe.py", line 19, in darknet2caffe params = net.params File "/home/oyrq/caffe/python/caffe/pycaffe.py", line 69, in _Net_params self._layer_names, self.layers) File "/home/oyrq/caffe/python/caffe/pycaffe.py", line 70, in if len(lr.blobs) > 0]) OverflowError: cannot fit 'int' into an index-sized integer

我还不知道怎么解决 我也遇到了原模型和转后模型加载到RT工程里时检测框不一样,有时候同一个目标还会出现多个检测框 谢谢!

onnx20 avatar Feb 22 '19 08:02 onnx20

@oyrq 我转yolov3.cfg和yolov3-spp.cfg都没有遇到过你这个问题

huaze555 avatar Feb 22 '19 08:02 huaze555