scale invariant geometric pattern matching error

Similar Questions

• Research and correspondence - difference between 'Match' and 'geometric model Match "?

  I was wondering if someone can explain to me the difference between 'Pattern Match' and 'Geometric pattern Match' screws? I don't really know how best to use for my application. I'm search/match small spherical particles in a video gray in order to follow their speed (I do that after subtracting the two following fields to get rid of background motion artifacts).

  Which should I use?

  Thank you!

  Hi TKassis,

  1. you can find from this link for the difference between these two,

  Pattern match: http://zone.ni.com/reference/en-XX/help/370281P-01/imaqvision/imaq_match_pattern_3/

  Geometric game: http://zone.ni.com/reference/en-XX/help/370281P-01/imaqvision/imaq_match_geometric_pattern/.

  2. I always prefer the match pattern because of its speed of execution and incase of correspondence to the geometric model that it took a lot of time to match your result. You can find in the attached figure for the same image with these two run time algorithm.

  

• problem with learning several geometric pattern

  Hello users of Labview,.

  My goal is to load different templates located in the target folder, create one or more models then, perfom some treatment (located in another file) image.
  The example provide in file vision works perfectly but if I change the path, it seems impossible to create a multiple repeat. In fact, I got the following error message:

  Error 1074395628 has occurred to IMAQ learn several geometric patterns

  IMAQ Vision: Image model corresponding invalid geometry.

  Certainly, I do not understand a part but I don't know where is my mistake.

  I add to the multiple associated model, an example of template image and the image to test.

  Please, can I have a help or suggestion to understand this problem.

  Thanks in advance for your help,

  Best regards

  Hi matriax,.

  Good to know it helped.

  Come to your questions,

  -Yes, model geometric information, or even in vision assistant also will not work.

  -In my code too, it does not work. The reason is explained below.

  -Yes, model created with assistatn vision should also work.

  Coming to the creation of a model, there are two geometric methods correspondent-function based and based edge.

  -Labview code uses geometric based function while u have created the model in edge based method.

  -If you see in vision assistant, settings tab, you have the type of algorithm two options. Select the base feature and you should be able to run it and then assistant labview and vision.

  For more details on geometric matching please refer to http://zone.ni.com/reference/en-XX/help/372916L-01/nivisionconcepts/geometric_matching_technique/

  Hope that helps let me know if you have any other questions.

• Pattern Match Processor warning

  Hello
  
  I'm an average mobile lines of 5 records and even is through the processor that has the pattern match.
  After getting the desired result, I get the following warning message:
  
  "< March 21, 2012 20:31:43 IST > < WARNING > < CQLServerTrace > < BEA-000000 > < invalid less tuple: eventType = totalEventType = mdepthChannel type object = less time = 1512893632168 average.wellUid = W-12, average.arrivalTime = null, average.wellboreUid = B-01, average.logUid is f34a, average.mdepthAverage = 507.51, average.wopAverage = isTotalOrderGuarantee = true 14.39 met in the stream operator < StreamSource id ="0"numAttrs ="7"> < uploading > < type Attr ="char"len ="2147483647"outcol ="0"/ > < type Attr ="timestamp"len ="64"outcol ="1"/ > < type Attr ="char"len = 2147483647 "outcol ="2"/ > < type Attr ="char"len ="2147483647"outcol ="3"/ > < type Attr = len 'double' = '64' outcol = '4' / > < type Attr = len 'double' = '64' outcol = '5' / > < type Attr = len 'bigint' = '0' outcol = '6' / > < / uploading > < OutputQueue > < SharedQueueWriter id = numReaders"92"="1"> < / SharedQueueWriter > < / OutputQueue > < TupleAlloc > < TupleFactory id ="124"> < TupleSpec > < AttrSpec pos = '0' type = 'char' len '2147483647' = / > < AttrSpec pos = "1" type = "timestamp" len = "64" / > < AttrSpec pos = '2' type = "char" len = "2147483647" / > < AttrSpec pos = "3" type = "char" len = "2147483647" / > < AttrSpec pos = "4" type = "double" len = "64" / > < AttrSpec pos = "5" type = "double" len = "64" / > < AttrSpec pos = "6" type = "bigint" len = "0" / > < / TupleSpec > < / TupleFactory > < / TupleAlloc > < / StreamSource > >
  
  If I increase the size of the window of the second processor that the above message will print after each size of the output window.
  
  Please help on this, why the above warning message.
  
  Thank you
  Sri

  Is what this error message indicates that you have set up 'mdepthChannel' stream (as opposed to the relationship) which is the default configuration of a channel (the default is-relation attribute is false).

  Then a DELETE (UNMIS) event is sent to this channel (in your case probably of a query in an upstream processor which evaluates to a relationship).

  Since a stream can have INSERTION events (MORE), it is a valid error.

  To resolve this issue, either change the query in the processor upstream to evaluate a stream (using an ISTREAM or DSTREAM according to your requirement) or configure the "mdepthChannel" to get the report. Of course, the choice will depend on your condition.

• How can I read a model and tell if it is a model of pattern match or a geometric model?

  Hey all,.

  I would like to know how I can read a template´s of information about whether it is a model macthing or a geometric model?

  In my code, users of the models and the algorithm must match them using special or geometric criteria depending on the model.

  For the moment I do by including a P or G file name, but I would avoid it and read the information in the file.

  Any ideas?

  Thanks in advance,

  Esteban

  Hey Esteban,.

  You can use the VI "IMAQ is this Info 2 VI Vision" for Abboud information:

  IMAQ is Vision present 2 VI Info - OR Vision 2011, using LabVIEW - National Instruments
  http://zone.NI.com/reference/en-XX/help/370281P-01/imaqvision/imaq_is_vision_info_present_2/

  Take a look at the attached VI

  Stephan

• extract image of pattern match

  Hi all

  I do the image processing using labview

  Get the picture, I perform geometric paragraph, fixed landmarks (on the matched geomatry) and detection of the shape.

  Here, I want to extract the positions of corresponding patterns based on the coordinate set system. and save it as a new image can I do this?

  I tried extracted imaq but couldn't do my request

  I; m very much appreciated for your help in advance.

  zainabmaghraby wrote:

  Hi all

  I do the image processing using labview

  Get the picture, I perform geometric paragraph, fixed landmarks (on the matched geomatry) and detection of the shape.

  Here, I want to extract the positions of corresponding patterns based on the coordinate set system. and save it as a new image can I do this?

  I tried extracted imaq but couldn't do my request

  I; m very much appreciated for your help in advance.

  IMAQ excerpt 2 allows you to retrieve the specified Image and then ordered Co IMAQ write to the file for writing to the file (you can select the model image bmp or png)

• Scale invariant filters

  Is there a way to search for patterns in an image independently a difference of scale between the model and the image under inspection?

  Double post

• No function matching ERROR initializing SqlDataAccess

  SqlDataAccess sda;//
  sda= new SqlDataAccess(homeDir.absoluteFilePath("testDatabase.db"));
  

  Hi, I have an error with this code. It is said:

  no match for the call function to
  ' bb::data :qlDataAccess:qlDataAccess()'

  Any ideas please? Thank you

  SqlDataAccess doesn't have a default constructor. If you provide a file name on the creation.

  If you declare in the file .h like this:

  SqlDataAccess sda;

   

  
  Then in constructor initialize in initializiers list:

  YourClass::YourClass (...)

  : someOtherVariable (someValue)

  sda (filename)

  etc...

  {

  }

  Important: the above list variables are initialized in the order of their declaration in the .h file! Preserve this order or compiler will give a warning.

  If you tried to do and it did not work, probably due to the variable homeDir not appeared yet. If homeDir points to the data folder, then the following should work:

  , sda (QDir::homePath() + "/ testDatabase.db")

  If you publish a .h and .cpp files, I can try to give a more specific suggestion.

  Another option is to declare a pointer to .h file:

  SqlDataAccess * sda;

   

  Pointer initially contains garbage, so initialize null in the constructor for easier debugging:

  YourClass::YourClass (...)

  : sda (NULL)

  {

  ...

  }

  Then create SqlDataAccess instance and assign the address to a pointer. This can be done in consructor or in the other method, just make sure it is done once:

  SDA = SqlDataAccess (new homeDir.absoluteFilePath("testDatabase.db"), this);

   

  You can then use sda as usual, but instead of sda.someMethod () the syntax become sda--> someMethod().

  Make sure you're not referring sda before initialization takes place.

  In the second argument to the constructor, we will set the parent of the sda to 'this', then it will be destroyed automatically when it is class parent ('this') is destroyed. If the parent is not set, the object should be removed manually using operator 'delete '. Is not needed when not using pointers (in the first example).

• REGEXP_LIKE Pattern match, select a Table to use in SQL (not PL/SQL)

  Hello
  
  hopefully I can explane my understandable problem...
  
  I would like to have the "Match-Pattern" of the "REGEXP_LIKE (-chain, from research 'Match-Pattern') ' selected in a table.
  
  Imagine I have a table called "patterns" with a field that contains the matched-filter (s)
  
  Select * from templates:
  
  KEY MODEL
  ---------- ----------------------------------------
  ZIP_CHECK ^ 0 [1-9] [0-9] {3} $. ^ [1-9] [0-9] {4} $
  CHARONLY [^ [: alpha:]]
  
  Now I would like user of the (current) PATTERN for the CHARONLY key in a select statement REGEXP_LIKE.
  Pseudo-code (which does not) for "show all names addresses where name contains not only the characters":
  
  Select the name of the address
  where regexp_like (name, (select the reason for bosses where key ='CHARONLY));
  
  Someone has an idea?
  
  Thank you
  Frank

  Jac says:
  It will work. In your case, it does not because your boss is not going...

  Good operating mode... I hope that, for CHARONLY, you mean ^ [[: alpha:]] * $

  I think that he did it, as his requirement will be
  "all names addresses where name does not contain only characters.

  with patterns as (
  select 'a' key, '[^[:alpha:]]' pat from dual
  )
  , data as (
  select 'test123' v from dual union all
  select 'test' from dual
  )
  
  select
  *
  from data
  where
  regexp_like (
   v,
  (select pat from patterns
   where
   key = 'a'
   )) 
  
  V
  "test123"
  

  You are right, if the requirement would
  "all the names of addresses where name does contain only characters.
  Let's wait and see ;-)

• What is the best way to manage my problem of pattern match?

  Use vision assistant 8.2, I formed a model (Psquare.png) from the GoodPrndl.bmp.   Of course, I get a good match for this image.  I expect to get a bad match for BadPrndlClip.bmp.  You will notice that missing a corner of the square.  This problem of delimitation has been produced in the production and rendered to the client.  Could an expert review this problem and give suggestions on the best method to detect this problem of cutting.  Remember that cutting or the vacuum might occur anywhere on the site or 'P '.   I have also attached special criteria script.

  Thank you

  

  You can do it like that. And use a particulate filter after this operation. I feel give you coherence because the broken here part means that the rectangle will not be completed. Please see the attached image that shows the treatment for the bad image.

• Desktop goes down with different COLOR SCREEN ERROR, PATTERNS of ERRORS

  My office always crashes (with different colors) at any time, it starts the stop then cut again, but still fact once again, and I also see a grounds checkerboards at the peak of the computer, videos and games, correct computer! TNX.

  My office is still blocking (with different colors) at any time, it starts the computer to stop then cut again, but don't always work again, and I also see a checkered patterns at the peak of the computer, videos and games , correct! TNX.

  Hello

  It is normally a sign of corrupt graphics drivers or graphics hardware fault.

  You should go to the website of your computer or the manufacturer of the graphics card > Search a drivers and download article > search your computer or your graphics card model number > your operating system > drivers for it: either video / graphic / Chipset (according to the wording it) > download and install the drivers.

  If that fixed it, it seems to me be a problem of graphic material.

  As it is a desktop, either Exchange your graphics card with a good.

  Or, if graphics card built-in, you will need to install a graphics card in a slot of the motherboard to see if this solves the problem.

  See you soon.

• OBIEE 11G: label to delete (it's like the pattern match) in the prompt of

  Hello
  
  I've migrated a prompt from 10g to 11g that has a text box as one of the fields (condition for a text column is "is like correspondence")
  In 10g, the column looks very good. Where, as in 11 g I can see additional label as 'looks like (match)' dashboard.
  
  How to remove the label not repaid. Please help me on this.
  
  Thank you
  Deven.

  Hi Deven,

  In the dashboard where the call is placed, go to edit the dashboard and an object of text below to the command prompt. Check here the option content enable HTML and paste the code below into the text section. Record the results of the dashboard and the view. Now, the text would be replaced, and nothing can be broadcast in place of "is AS (match)."

  < script type = "text/javascript" >
  txt var = 'looks like (match); Alternative text
  var txtToReplace =""; Text to be replaced by

  elems var = document.getElementsByTagName ('span');
  for (i = 0; i<>
  if(elems[i].innerHTML==txt) {elems [i] .innerHTML = txtToReplace ;}
  }
  < /script >

  Let me know if you face any questions while implementing this. I test this on 11.1.1.6.0 and IE.

  Thank you

• Using CASE pattern match

  Hello Experts,
  
  I use oracle 8i and do a very simple thing here. But I do not know why the request is not pulling any results. Let me explain with an example.
  
  There is a field called st_number
  
  St_number
  ABC 12 345 gffhsf
  chdvb34-476bhef
  sdbvf765900vfbhfb
  
  I want to make a model matching in the field above and assign values to the output.
  
  I do the following.
  
  (case
  When st_number like '% 12 345% ' then 'Active'.
  another "inactive".
  end) "active/inactive".
  
  For some reason, the query above does not work and returns as "inactive".
  
  Please let me know if you have any suggestions. Thanks in advance.

  Hello

  It works for me.

  Whenever you have a problem, it helps if you post a test script complete that others can run to recreate the problem, like this:

  CREATE TABLE     table_x
  AS
  SELECT  'abc 12,345 gffhsf'     AS st_number     FROM dual     UNION ALL
  SELECT  'chdvb34-476bhef'     AS st_number     FROM dual     UNION ALL
  SELECT  'sdbvf765900vfbhfb'     AS st_number     FROM dual
  ;
  
  SELECT     st_number
  ,     (CASE
            WHEN  st_number LIKE '%12,345%'     THEN 'Active'
                                           ELSE 'Inactive'
       END)      AS "Active/Inactive"
  FROM     table_x
  ;
  

  But the code above does not produce a problem. Its output is:

  ST_NUMBER         Active/I
  ----------------- --------
  abc 12,345 gffhsf Active
  chdvb34-476bhef   Inactive
  sdbvf765900vfbhfb Inactive
  

  What you do differently?

• Application of several game Modes of geometric pattern in c#

  I have a model corresponds to the function that works well in the Vision Assistant for my images. I have create a generator or C file, and he said: I need to put the CWIMAQMatchGeometricPatternOptions.MatchMode to 7, which means that several game modes (there are 4 in my opinion. I guess they are assigned, 1,2,4 and 8 and they add up the values. 7 = 1 + 2 + 4).

  In the example program, it shows MatchModes being added together:

  MatchMode = CWIMAQGeometricMatchModes.cwimaqGeometricMatchOcclusionInvariant;

  MatchMode = MatchOptions.MatchMode + CWIMAQGeometricMatchModes.cwimaqGeometricMatchRotationInvariant;

  But it does not compile.

  How can I add several modes?

  Found:

  You must cast the number as a CWIMAQGeometricMatchModes

  MatchOptions.MatchMode = (CWIMAQGeometricMatchModes) 7;

• Help on Perspective correction, Image stitching and then pattern matching.

  Hi all

  As a newbie in LabVIEW, I don't know a lot about machine vision.

  I need for my project automation, stitching the images (from 4 cameras, 90 degrees). Do the perspective correction and then form a label (which is actually pasted on the jar).

  Please share your experience on the same type of project. And help me to proceed with the development of the project.

  Also find enclosed all the pictures from the camera.

  PS: Due to budgetary constraints, I use very basic USB cameras available, and the attached picture is the actual image.

  To be able to correct the image for distortion, you first have to calibrate it. Assuming that your setting of the camera is constant (i.e. the bottle always at the same place in what concerns the cameras, I would first of all paste a grid around the bottle calibration and then take a few pictures of this grid with all four cameras.)

  We install a calibration grid, you can print: C:\Program Files (x 86) \National Instruments\Vision\Documentation\CalibrationGrid.pdf

  This example will then show how you can learn the calibration using the images of the grid, and then the correct images would have taken you without the grid.

  \LabVIEW 2010\examples\Vision\2. Calibration Example.llb\Nonlinear Calibration Example.vi Functions\Calibration\Nonlinear

  Note that you need to recalibrate the system if something changes (lens focus, camera or bottle of position.

  After this step, you should have 4 images 'straight' which have been corrected for distortion and which can be used for sewing.

  For sewing, unfortunately, Vision Development Module does not include an exit of the seams of box function.

  If this is acceptable, you can use some third party software that provide features couture, such as Photoshop Autostitch, Hugin, Ptgui, Panorama Tools, search for Microsoft Image Composite Editor, CleVR Stitcher or Adobe Systems.

  If you need to do everything in LabVIEW, I can point you to some of the tools provided with the library you can use to create your own algorithm of seam. This part is certainly the most difficult of your project.

  Image stitching process can be divided into three major components - image calibration, registration and fusion. We already talked about calibration.

  -Image recording is to couple features in your images in order to align them. You can use tools like the corresponding model and edge detection for this purpose Watch examples of vision LabVIEW to know how to code in LabVIEW.

  -Image mix is to process the images to account for the difference in brightness of images from several cameras.

  Histogram analysis on the different images and applying a lookup table are simple tools that you can use for this purpose.

  Images can then mingle with features like IMAQ ImageToImage.

  This thread also talks about sewing:

  http://forums.NI.com/T5/machine-vision/image-stitching/m-p/860414

  Hope this help get you started. Good luck with your project.

  -Christophe