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Questions tagged [object-recognition]

The computer vision task of finding and identifying objects in an image or video sequence

The computer vision task of finding and identifying objects in an image or video sequence is often conducted consistent with one of two approaches:

  • Appearance-based methods

    • Use example images (called templates or exemplars) of the objects to perform recognition

    • Objects look different under varying conditions:

  • Feature-based method

    • a search is used to find feasible matches between object features and image features.

    • the primary constraint is that a single position of the object must account for all of the feasible matches.

http://en.wikipedia.org/wiki/Outline_of_object_recognition

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Labels showing "N/A" in Tensorflow object recognition results

I'm working on a basic model to identify the e-ink display of my DGT Centaur chess board. Most of the labels for the bounding boxes that identify the display read "N/A". There are a few instances where the bounding box uses the "display" label, but…
charliesneath
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Object recognition from photo in Xamarin Forms

I am currently looking to add a functionality where the user takes a photo (which has already been implemented) and then have it analyzed where either the landscape or the object is identified. I came across Microsoft Cognitive Services…
Carlos Rodrigez
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Is detecting an object based on its edge possible with OpenCV

I am working on a project for recognizing an object from 3D space (video feed) given a sample of its edge (outline). I tried using templates and trying to detect the object after converting the feed to Canny mode: sample1 = cv2.imread('./canny…
SuperSimplePimpleDimple
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How to use tiny-yolo in c# with the OpenCvSharp Wrapper?

I want to do object recognition on my webcam input with c#. First I was able to do it with yolov3 but it was too slow. So I wanted to try it with tiny-yolov3. But all the outputs seem to be "Not a number" all the time and consequently there are no…
Ingo D
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How can I create an Android object recognition application where I can display information when they are clicked using Vuforia and Unity?

Right now I am trying to create an android object recognition application (it will be through an image) with Vuforia and Unity. What I will show will be a 3D map, but in addition to showing it I want to present information of certain parts of the…
Bryan Barrios
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ML Kit for Firebase Object Recognition Categories

I tested the Google ML kit Object recognition,Face detection and Image Labeling using ML Kit for Firebase (in Android app). Followed the official documentation, and all worked well. What is interesting about the ML kit, at least from my…
Majo
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How can I get normalized coordinated from an object in images

I am building a custom vision application with Microsoft's CustomVision.ai. I am using this tutorial: https://learn.microsoft.com/en-us/azure/cognitive-services/custom-vision-service/csharp-tutorial-od At one point I need to: When you tag images…
Georgia Kalyva
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tensorflow.js cocossd not working in mobile browser

I am trying to detect the objects using tensorflow cocossd model. In case of png/jpg image: My script is working fine both in laptop and mobile browser. But in case of camera video frame: My script is working fine in laptop browser, but it is not…
Shaon Debnath
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How do I get the distance from an object to another object with a camera?

My FRC (robotics) team is having issues with image processing, and tomorrow is our last testing day before competition. The camera is facing downward and tilted in the x direction. We are trying to calculate the distance that an object is to a…
Titan
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Is it possible to loop when compiling with protobuf, converting .proto files to .py files?

I was setting up an environment for an object recognition project using TensorFlow. When it came to compiling some .proto files I hit a wall. It took the efforts of find the path to the files / then find the path to the protobuf app / then go ahead…
sealion
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AVCaptureOutput and Object Recognition

I'm new to Swift and have been finding Stackoverflow tremendously helpful in my troubleshooting so far. In my current project I'm trying to create a confidence label similar to the attached screen shot in addition to a already existing capture…
maaaaaaad
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Python - ImportError: Could not find 'nvcuda.dll'

i just want to make object recognition from inception pre trained model using tensorflow & i am using this code: from __future__ import absolute_import from __future__ import division from __future__ import print_function import argparse import…
Roxas Zohbi
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Haar Cascade Training for Parts of a Known Object

I am working on a project where I am trying to extract key features of a bicycle from an overall image. I am currently investigating the use of Haar Cascades to train my computer to find certain regions of interest from said bicycles, e.g. the…
wilson88
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How do I know when a face has left the scene?

I'm using ARKit with the ARFaceTrackingConfiguration. It detects my face when I look at the camera, which is great. However, when I move out of view of the camera, I don't get renderer:didRemoveNode:forAnchor:. What I would like to do is detect…
i_am_jorf
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Shape ellipse like detection with varying edge intensity

I need some help, I'm struggling to detect an ellipse-like shape in C++ or Python. At first glance it's clear there is a boundary of the shape though the edges are not homogeneous. I tried many OpenCV algorithms like blob detection or findcontours…
Igal_D
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