Questions tagged [text-recognition]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
1
vote
1answer
49 views

Outlined text extraction from image using OpenCV

I have some video frames I'd like to extract some text from (for making softsubs from hardsubbed video for learning). The text in question is mostly in Chinese script (some numbers and Latin letters) ...
0
votes
0answers
28 views

Text detection and recognition from Image

Let say you are given this image and want to detect and recognize the digits printed on the fuses. for all CV-operations i used OpenCV 3.4.4 and Python I did already these things: Detection: 1) ...
0
votes
1answer
20 views

How should I go about cleaning up this kind of images? (algos)

I want to extract text from some images with messy backgrounds. First step was switching to gray scale, applying an edge detection algorithm, and then cleaning up a little bit. Here's an example of ...
-1
votes
1answer
67 views

How to use optical character recognition program to read coins? [closed]

I had a friend that goes through my pennies trying to find valuable rare pennies. Instead of looking at each one could a optical character recognition program be used to flag coins?
1
vote
0answers
59 views

A guy is taking pictures of my home and family, how do I decode his license plate? [closed]

I had no idea where to post this. I'm trying to decode a license plate and take it to the police station. The police said that they'll try to decode it, with no promises. If they had a full license ...
1
vote
0answers
326 views

Discrete Fourier Transform for text analysis?

I would like to determine the number of text-blocks verifying a roughly similar pattern. I have the intuition that I could do it using some Discrete Fourier Transform (DFT)-like methodology. Example: ...
0
votes
1answer
248 views

Generic text recognition

OCR is a quite an old subject in Image Processing & Vision. However, the most literature that I had come across 1, 2, 3 shows various matured techniques which I am sure will give some good results ...
0
votes
1answer
69 views

Number segmentation techniques

Assume that the speed limit at a place is captured and is provided as an input to a system which checks if the speed of vehicle is above the accepted level or not. For checking, the number in the ...
1
vote
1answer
290 views

What are the keywords to find an algorithm that detects embossed text from a 3d model?

Currently I am doing an acadmic research about an idea which came into my mind lately. I have a 3d model and I want to extract embossed text .. anyone knows any papers? or if it is already proposed? ....
1
vote
3answers
1k views

Using neural networks for rotation invariant OCR

I have video with text which can be rotated in any direction. If I trained a neural network on images of each letter at all possible degrees of rotation, would it be possible to classify the ...
2
votes
1answer
59 views

which spatio-temporal properties does dynamic textures exhibits?

know that dynamic textures are spatially repetitive and temporally varying patterns. 1.I read one sentence in one paper i.e. They are sequences of frames exhibiting certain stationarity properties ...
1
vote
1answer
342 views

What is a low-pass filter for a sequence of tuples?

I am currently reading SEGMENTATION AND RECOGNITION OF SYMBOLS WITHIN HANDWRITTEN MATHEMATICAL EXPRESSIONS. There is one sentence I don't understand: The preprocessing stage is subdivided into ...
4
votes
1answer
3k views

Base line detection of text lines

I came across various works in the literature of document analysis addressing the problem of detecting base lines in multi-oriented texts. But no amount of search could give me satisfactory answer to ...
12
votes
1answer
200 views

Detecting Arabic verses spanning multiple lines

I need to build a Quran app and I want to read out the verses when a user touches it. The problem I'm facing is that some verses may expand to one and half lines (highlighted red verse) or just fit in ...
5
votes
1answer
8k views

Text recognition for Android app

I´d like to use some OCR algorithm (Image to Text) into an Android app (Java). I have previously used several algorithms but for a PC (Matlab) app. Which library or algorithm should I use? ...