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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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fast image annotation for large dataset

I have a dataset related to plant disease. the dataset has 70k images and 38 classes dataset and I want to annotate images with a bounding box. I try for annotation LabelImg and other annotation tools but all of them are so time-consuming. is there…
Ehtisham Ahmed
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Labels not showing correct name

i am pretty new to this all so bare with me here. I've made myself a program to recognise tools, issue is, while running it will see the object, but the name will be N/A, note that this doesn't happen to every label (doesn't recognise screwdrivers…
JustAGuy1250
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How to ignore the background while detecting image from a video using opencv python?

I have trained an image(plain paper) so using that from the video I need to find distance, velocity, acceleration. I found all those things. but my video is getting detected by many different objects. I want to detect only my plain paper. What…
Prasanna kumar
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Load object recognition model created in Colab in a Javascript web page

I made my object recognition model by following this example: https://www.tensorflow.org/tutorials/images/classification I create this model using Colab, and now I have, from Colab, a model in .py and .ipynb Using this istruction I save my model in…
Giali
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Calling function in kivy python

The code below is for object detection. I build the code and worked fine, but when I pasted the code in kivy python I got errors. I got a error in calling a function which is outside of the kivy class. So, please help me to reslove the error. And…
Akash Panda
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How to recognize the correctness of an image?

I'm new to image proceesing and object recognition..From a hand drawn image, how to determine the level of correctness compared to the below image using image processing. Is there any way to do this using image processing or ML?
santhosh136
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Make a color-based detection illumination-invariant

Below is a program that detects object based on DEFINED HSV-COLOR BOUNDARIES. The problem is that when the illumination in the room changes, it affects negatively on the object's color to be detected and leads to mis-detection. So any ideas of how…
Khaled
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How objects of an image can be labeled

I have searched a lot to know how can we test an object exist in an image. I am searching for the name of the scientific/ technology that can provide this. As an example I can mention Instagram where you upload an image and Instagram writes: This…
m123
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How to perform specific object recognition on a image?

I have 3 images of differents objets : a smartphone, a shirt and a packet of pasta. I want to perform recognition of each object on any images containing one of these objects. For example, if we have the same phone in a picture, i want to be able…
samourayonly
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Open CV: Draw missing contours/ lines of a table

I got some tables with missing lines, so that the cells are not closed (the cover is missing). The open lines I don't want to have extended vertically, but rather I want to draw a horizontal line to close them. Is there any way to detect open lines…
hux0
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Image scraping from web pages for character recognition using Python

I have to gather a dataset of 10,000 captcha images from a website http://elegalix.allahabadhighcourt.in/elegalix/StartWebSearch.do You can find the captcha images under the judgment date tab. So I have to scrape 10,000 images from this website…
A_the_kunal
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How to detect specific object in image

I have 32 alphabet cards like OSMO application (https://www.playosmo.com/en/words/). I wanna recognize them in image or real time in frams of a camera and I want this app for android device so I used opencv and c++ for this purpose. the methods…
Rostami
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What do the channels do in CNN?

I am a newbie in CNN and I want to ask what does the channels do in SSD for example? For what reason they exist? For example 18X18X1024 (third number)? Thanks for any answer.
Nedas Jankauskas
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How to calculate dimension of image by knowing pixels and distance between camera and object?

I have written a code in opencv-python for calculating the number of pixels in height and width of an object. Lets say, height = 567 pixels width = 324 pixels I also have KNOWN_FOCAL_LENGTH of camera and distance between the original object and…
Sambhav Kumar
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Error using Mask_RCNN with jupyter notebook

I m quite new to tensorflow, but after some time spent on it, i tried to train a model with Mask_rcnn with my own images to make an object recognition. I use jupyter notebooks. In the training block I found an error which I cannot overcome.…
Davide
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