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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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How to identify contours associated with my objects and find their geometric centroid

Problem Statement & Background Info: EDIT: Constraints: The red coloring on the flange changes over time, so I'm not trying to use color recognition to identify my object at this moment unless it can be robust. Addition,ally external illumination my…
NoviceCoder
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Using OpenCV and Python to replace a segmented part of an image with other images

I want to replace a part of an image with another image. I am able to segment an image into it's respective class, take for example, in the image links, the picture of an eagle has been segmented using solid colours to differentiate between the…
Jenny
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Tensorflow Lite - detect face parts

I'm looking for a way to detect parts of a face (like eyes, nose, lips) with Tensorflow Lite. So far, I haven't seen much info. Is there a way to actually retrieve coordinates that describe this kind of data? Thanks
midnight
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ARCore with additional object recognition

I know, the object recognition feature is currently not supported by Google's ARCore. My simple goal: detect cups and show some coffee inside. (Best would be display it live on the phone) Is there really no way to detect objects? Do you know any…
proKress
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K fold cross validation Tensorflow Object Detection

I want to evaluate my model using K-Fold Cross Validation (k=5). This means that dataset must be split in 5 parts: p1,p2,p3,p4,p5 and then: (run1) Test: p1,p2,p3,p4 Eval: p5 (run2) Test: p1,p2,p3,p4 Eval: p4 (run3) Test: p1,p2,p4,p5 Eval: p3 (run4)…
Giacomo Bartoli
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TensorFlow Object Detection API - Out of Memory

I am using Tensorflow Object Detection API to train my own object detector. I downloaded the faster_rcnn_inception_v2_coco_2018_01_28 from the model zoo (here), and made my own dataset (train.record (~221Mo), test.record and the label map) to fine…
Eralaf
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Specific object recognition. [Python]

We have a technical task to recognize coal on the conveyor. Input data: Photo of conveyor with (or without) coal. Output data: Processed image with conveyor borders. (next step is recognizing volume of coal on the conveyor) We've tried to…
Ilya G
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What is the difference between exact matching, search and classification?

In the context of Computer Vision, can someone please explain to me the difference between exact matching, search and classification? Any analogies and supporting examples would be much appreciated.
Siddharth Sharma
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How to find upper left most corner of my Contour Bounding Box in Python OpenCV

What I'm doing: I have a robotic arm and I want to find x,y coordinates for objects on a piece of paper. I am able to find a contour of a sheet of paper and get its dimensions (h,w). I want the coordinates of my upper left corner so when I place…
NoviceCoder
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Computer Vision: SURF (Speeded Up Robust Features) with Color consideration

Is it possible to enhance the Speeded Up Robust Features (SURF) Computer Vision algorithm so that it can differentiate equally distributed and shaped objects with different colors? I am looking for research papers or any other sources that try to…
Tom
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Help with android augmented reality

i just need some guide on how to detect a marker and make an output text.. for ex: a marker with an image of a dog , when detected, i have an output text "DOG" in a textfield .. can someone help me with my idea? oh, btw which one is more effective…
Naj
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Recognize objects while falling - viewpoint variation

I have a problem statement to recognize 10 classes of different variations(variations in color and size) of same object (bottle cap) while falling taking into account the camera sees different viewpoint of the object. I have split this into…
Karthik
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Recognise pose of object (IBM Watson)

I was wondering whether it was possible to recognise if an object is in a desired pose with some visual recognition tools (in particular, I was hoping to use IBM Watson services). For instance, I need to check if a cylinder is in the desired…
Federico Bacci
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Detecting mouse movement in a Screen Recording using Computer Vision

I wish to detect and track the mouse cursor in a screen recording video. My goal is to track the mouse cursor in the video and know about the events like closing of a window, exiting an application etc. Use of normal CV algorithms to track objects…
Siddharth Saurav
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Object recognition vuforia

I am using "vuforia" SDK for Object recognition in iOS.I am using sample code give by vuforia and able to recognise object using "ObjectReco" part. - (void)renderFrameWithState:(const Vuforia::State &)state projectMatrix:(Vuforia::Matrix44F…
hitesh landge
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