pattern-recognition

问题 Is there any specific algorithm for handwriting recognition? The algorithm should recognize the hand written letter. Any one could help would be greatly appreciated in advance. Thank you 回答1: You can use a genetic algorithm: http://www.foibg.com/ibs_isc/ibs-02/IBS-02-p03.pdf You can use Greedy Point Match: http://www.cs.berkeley.edu/~fateman/msw/GreedyPointMatchWriteup.pdf I would suggest reading this paper: On-Line and Off-Line Handwriting Recognition: A Comprehensive Survey 回答2: OCR might

问题 I am just being adventurous and taking my first baby step toward computer vision. I tried to implement the Hough Transformation on my own but I just don't get the whole picture. I read the wikipedia entry, and even the original "use of the hough transformation to detect lines and curves in pictures" by richard Duda and Peter Hart, but didn't help. Can someone help explaining to me in a more friendly language? 回答1: It's more common to think of a line in rectangle coordinates, i.e. y = mx + b .

问题 I am just being adventurous and taking my first baby step toward computer vision. I tried to implement the Hough Transformation on my own but I just don't get the whole picture. I read the wikipedia entry, and even the original "use of the hough transformation to detect lines and curves in pictures" by richard Duda and Peter Hart, but didn't help. Can someone help explaining to me in a more friendly language? 回答1: It's more common to think of a line in rectangle coordinates, i.e. y = mx + b .

问题 The end goal would be to see if contains . the compare needs to support minor distortion, scaling, color differences, rotation, and brightness differences. it can be in any language really. i will be running this algorithm as a webservice so its no problem if i have to write this portion in c, c++, python, etc. 回答1: You should probably take a look at OpenCV and VLfeat. 回答2: Object detection can be performed for example using Rapidminer IMMI (image mining extension for one of the leading open

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed last year . By processing a time series graph, I Would like to detect patterns that look similar to this: Using a sample time series as an example, I would like to be able to detect the patterns as marked here: What kind of AI algorithm (I am assuming marchine learning techniques) do I need to use to achieve this? Is there

问题 Closed . This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 4 years ago . I work in my project on the problem of writer recognition from handwritten Arabic documents. to identify the writer, I used a database image, My problem is how to extract features from these images. I'm new in matlab and I do not have much knowledge in image processing. please

问题 This question was migrated from Cross Validated because it can be answered on Stack Overflow. Migrated 3 years ago . I was trying to plot train and test learning curve in keras, however, the following code produces KeyError: 'val_acc error . The official document <https://keras.io/callbacks/> states that in order to use 'val_acc' I need to enable validation and accuracy monitoring which I dont understand and dont know how to use in my code. Any help would be much appreciated. Thanks. seed = 7

问题 There are models to recognize 2-class sounds, which are class-A and class-B. How to recognize class-C sounds as abnormal sound ? I tried to set a threshold while recognizing by frames. above 70% -> class A or B else -> abnormal For example, If a sound has 10 frames, and the result is frame 1 2 3 4 5 6 7 8 9 10 A B A B A A A B A A A=7 B=3 -> class A frame 1 2 3 4 5 6 7 8 9 10 B B A B A A A B A A A=6 B=4 -> abnormal The performance is very bad. what should I do ? 回答1: There are two ways to look

问题 I want to determine an unknown pattern in a string such as, s=112468112468112468112468112468. So in this string, we can clearly see that 112468 is the repeating pattern. I searched on google quite a bit for finding some algorithms to help me, but I could only see ones which find a given pattern in a string such as Boyer-Moore algorithm etc. What I do now to find these repeating unknown pattern is that, for(i=0;i<Length of String;i++) { for(j=i+1;j<Length of String;j++) { if(s[i]==s[j] && s[i

问题 At this moment I worked on recognition forms. It's perfect with camera of my computer, but now I would like test with a camera on network. I use JavaCV (OpenCV apply to Java). This is my code: public static void main(String[] args) throws Exception { OpenCVFrameGrabber grabber = new OpenCVFrameGrabber("http://192.168.1.210:5500/snapshot.cgi?user=admin&pwd=123456"); grabber.setFormat("mjpeg"); grabber.start(); for (int k=0; k<20000; k++){ System.out.print(k); } IplImage frame = grabber.grab();