Is there any available object detecting/recognition C# library?

Question

I'm working on a project that need to regconize object in the real world ( like fruits, chairs, notebook, table, speaker... blah blah )

The first thing i would like to ask is that "Is it possible?", i'm currently a third-years student at University of Information technology

And the second is that "Is there any available C# library that help me to do this?"

Is there any solution for this? I will be very grateful if there is anyone that can answer my questions!

Do you mean that you will pass an object, and you have to determine the type of object from the list of real world objects you already have with you? — PM., Oct 14 '13 at 06:12
I will pass an image, then the library would help me to determine what objects is in the image — Susuri Yuyuki, Oct 14 '13 at 06:13

score 0 · Answer 1 · answered Oct 14 '13 at 12:42

Generally speaking, this is a very difficult task. Keep in mind that designing a perfect system that always detects the object and produces no errors (false alarms) is currently impossible.

You can start by using OpenCV's latent SVM detector: http://docs.opencv.org/modules/objdetect/doc/latent_svm.html

However, training new models is problematic. You can also use OpenCV HOG descriptor and detector: http://docs.opencv.org/modules/gpu/doc/object_detection.html

or cascade classifier: http://docs.opencv.org/modules/objdetect/doc/cascade_classification.html

You should limit yourself to a predefined set object and train a detector for each object class. If you can limit yourself to the set of classes that OpenCV's latent svm currently supports, it actually won't be that hard of a task. But keep in mind that there always will be missed detections and false alarms.

score 0 · Answer 2 · answered Aug 13 '18 at 12:15

You can use Alturos.Yolo it is a c# wrapper for yolo (darknet). Dependent on the pre-trained model you can detect a lot of different objects (list of trained objects of Yolo9000). You can also train custom objects if you need more variety.

Nuget package

PM> install-package Alturos.Yolo

Example

var configurationDetector = new ConfigurationDetector();
var config = configurationDetector.Detect();
//using (var yoloWrapper = new YoloWrapper("yolov2-tiny-voc.cfg", "yolov2-tiny-voc.weights", "voc.names"))
using (var yoloWrapper = new YoloWrapper(config))
{
    var items = yoloWrapper.Detect(@"image.jpg");
    //items[0].Type -> "Person, Car, ..."
    //items[0].Confidence -> 0.0 (low) -> 1.0 (high)
    //items[0].X -> bounding box
    //items[0].Y -> bounding box
    //items[0].Width -> bounding box
    //items[0].Height -> bounding box
}

Is there any available object detecting/recognition C# library?

2 Answers2