Bad result in match pattern

Similar Questions

• Match pattern - effectiveness of the descriptor of KING

  In my application, I am followed by objects in an image using the VI 'IMAQ Match model 4' from the Module of vision. Currently, follow-up can not keep up with the rate of acquisition of 60 Hz the camera so I would speed it up.

  My first step was to define a descriptor of KING to find objects only in part (user-defined) image, which reduces the time to follow-up in a frame of 30 ms to 20 ms.

  However, if I instead reduce the size of the image by:

  • defining a return on investment directly in the camera that it returns only the interesting part of the image
  • or by 'manually' copy the KING of the big picture into a smaller temporary in LabView

  follow-up time reduced to ~ 7 ms.

  I was very surprised to see, especially the second stage of cropping the image in LabView and track on the small image is faster than the built-in KING descriptor of the VI «IMAQ Match Pattern 4»

  If Miss me an option or a setting here? Or y at - it an explanation of why I not see this behavior?

  OK what I think is that
  you use the KING for camera in this case that you force ccd to work just to the related KING
  This means resulted in images are small between the start and inside the loop
  It's a mechanical action (or it is better to say that the physical action)
  but in a second you will get full size and makes the smaller image is the piece of your treatment consuming your CPU
  Indeed in the first method, you do not have the image Corp. you just configured camera to make the picture smaller
  but in a second you make image Cup and it is part of your treatment in your PC requires a CPU involving

• Match pattern

  Hello.

  I try to extract data from multiple text documents that go like this "abcdtwy teujh m: + 1.2345678e000 mkgtd ', and the number + 1.2345678e000 is what I want to extract the string. Can I use the subset of string to separate the number of a single document, but the offset and the length of the string of data vary in different documents. So I'm using match pattern to extract the entire string between "M:" and space.

  I wonder if the pattern function works in this situation. If Yes, what regular expression can write specify the string between "M:" and space?

  Thank you 1 million .

  I tried your test string and the result worked OK.  Could you post some examples of when it fails?

  

• Match pattern does not work correctly when you are looking for a null character

  I use the match pattern to retrieve a string NULL completed a response, I'm getting a device on a serial port. The VI is attached and here is a screenshot of the block diagram.

  It works very well with the index value 0, 1, or 2. When index is 3, I get the result below.

  Why model matching is not finding the null character?

  Thank you!

  

  

  I'm Datura, need to remove the cable from the shift control for the control of the match pattern.

  DUH!

• Regular expression matching is not what matches Pattern

  I read a lot of posts on how match model does not match what match regular expressions will be due some characters does not.

  However, I found a problem with the other way. A simple Reg - Ex who works in the match pattern but not regular Expression match.

  What I have here is just an example. I want to use regular Expression Match then I can specify some matches under.

  The reg - ex's: one or more non-numeric characters, a space, one or more numeric characters. At the beginning of the string.

  How can I get this to work in regular expression matching? I work in LabVIEW 2010f2 32 bit. Here is the code snippet and the results:

  

  Rob

  One of the subtle differences is the operator of negation for the character classes.  In match pattern is ~, but for the Match RegEx is ^.

• bad results for the search for context on the empty element tags

  I use Oracle DBMS 11.1 and 11.2 and created an index on an XML column context (article group: PATH_SECTION_GROUP).
  When you enter a query like
  
  SELECT count (*) FROM my_table t WHERE contains (t.co_xml,'hasPath(/tag1/tag2)') > 0
  
  I get bad results if tag2 is an empty element tag (< tag2 / >) that appears somewhere in the
  XML instance, but is NOT directly under tag1.
  
  For example, the following XML instance is (but shouldn't!):
  
  < a >
  blah blah < tag3 > < tag1 > < / tag3 > < / tag1 >
  blah < tag4 > < tag2 / > < / tag4 >
  < /a >
  
  This seems to happen only for the empty element tags. Is this a known bug and does anyone know of a workaround?
  
  Thank you in advance for your help!
  Roman

  Like you, I've been looking in the wrong places, bug of thought, rather than documented behavior. Finally, I came across the following excerpt from the next section of the documentation on haspath in Oracle text reference.

  http://download.Oracle.com/docs/CD/B28359_01/text.111/b28304/cqoper.htm#i997393

  Limits

  Because of the way in which XML data section are saved, false match may appear with XML sections that are completely empty as follows:

  A query of HASPATH(A/B/E) or HASPATH(A/D/C) falsely corresponds to this document. This type of fake correspondent can be avoided by inserting some text between the empty tags.

• Match pattern IMAQ 4 to superimpose several lines 2

  Hello community OR,.

  I have a problem connecting to the match pattern to superimpose several lines 2.

  I want to track an object from a video webcam.

  In this help http://zone.ni.com/reference/en-XX/help/370281U-01/imaqvision/imaq_match_pattern_4/ it is said that the Matches (Pixels) (Bounding Box) must be connected to the superposition of several lines to the end of line Points. But I can't take the bounding box only. I tried the unbundling of the table 1 d of the clusters, but I can't do it.

  Any help is appreciated. I can post a picture of my code if requested.

  Thank you

  Marwan Sabry

  I'm sorry, it's an array of clusters.
  -Therefore, index 0 for the first game.
  -unbundling with name for encompassing and then pass it to overlay vi.

• Match pattern does not not in LabVIEW 2009

  Hi all

  The match pattern does not not for ' [' this symbol in LabVIEW 2009] Kindly help me how to solve this problem.

  Thank you

  Sivabalan.V

  See the attached picture. Please check the response as a solution that you think best responds to your question.

  

• BAD RESULTS WITH OUTER JOINS AND TABLES WITH A CHECK CONSTRAINT

  HII All,
  Could any such a me when we encounter this bug? Please help me with a simple example so that I can search for them in my PB.
  
  
  Bug:-8447623
  
  Bug / / Desc: BAD RESULTS WITH OUTER JOINS AND TABLES WITH a CHECK CONSTRAINT
  
  
  I ran the outer joins with check queries constraint 11G 11.1.0.7.0 and 10 g 2, but the result is the same. Need to know the scenario where I will face this bug of your experts and people who have already experienced this bug.
  
  
  Version: -.
  

  SQL> select * from v$version;
  
  BANNER
  --------------------------------------------------------------------------------
  Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
  PL/SQL Release 11.1.0.7.0 - Production
  CORE    11.1.0.7.0      Production
  TNS for Solaris: Version 11.1.0.7.0 - Production
  NLSRTL Version 11.1.0.7.0 - Production

  Why do you not use the description of the bug test case in Metalink (we obviously can't post it here because it would violate the copyright of Metalink)? Your test case is not a candidate for the elimination of the join, so he did not have the bug.

  Have you really read the description of the bug in Metalink rather than just looking at the title of the bug? The bug itself is quite clear that a query plan that involves the elimination of the join is a necessary condition. The title of bug nothing will never tell the whole story.

  If you try to work through a few tens of thousands of bugs in 11.1.0.7, of which many are not published, trying to determine whether your application would be affected by the bug? Wouldn't be order of magnitude easier to upgrade the application to 11.1.0.7 in a test environment and test the application to see what, if anything, breaks? Understand that the vast majority of the problems that people experience during an upgrade are not the result of bugs - they are the result of changes in behaviour documented as changes in query plans. And among those who encounter bugs, a relatively large fraction of the new variety. Even if you have completed the Herculean task of verifying each bug on your code base, which would not significantly easier upgrade. In addition, at the time wherever you actually performed this analysis, Oracle reportedly released 3 or 4 new versions.

  And at this stage would be unwise to consider an upgrade to 11.2?

  Justin

• The results of Match lost color

  I use the node color model match looking for a model from a webcam. But the node may return one or two good results among ten times to win. For the other nine times, the node cannot yet to find the target. I tried to change a clearer webcam and adjust color weight, Mode Match Score, search strategy, color sensitivity, etc., for several times. But the problem persists, and the improvements are not significant (almost no improvement). Now, I want to improve the success rate in the match. What should I do? Thank you!

  Try to extract the luminance plane and experiment with the algorithms of pattern matching in grayscale.

• Different results using Matcher.replaceAll on a literal type of update

  I expect the results for all of the following scenarios would have been the same:

  public class {PatternMatcher

  Public Shared Sub main (String [] args) {}

  Model p;

  Matcher m;

  duplicates

  p = Pattern.compile ("(.*)");

  m = p.matcher ("abc");

  If (m.matches ()) System.out.println (p + ":" + m.replaceAll ("xyz"));

  unique

  p = Pattern.compile ("(.+)");

  m = p.matcher ("abc");

  If (m.matches ()) System.out.println (p + ":" + m.replaceAll ("xyz"));

  WTF

  p = Pattern.compile ("(.*?)");

  m = p.matcher ("abc");

  If (m.matches ()) System.out.println (p + ":" + m.replaceAll ("xyz"));

  duplicates

  p = Pattern.compile ("(.*+)");

  m = p.matcher ("abc");

  If (m.matches ()) System.out.println (p + ":" + m.replaceAll ("xyz"));

  unique

  p = Pattern.compile ("^(.*)");

  m = p.matcher ("abc");

  If (m.matches ()) System.out.println (p + ":" + m.replaceAll ("xyz"));

  duplicates

  p = Pattern.compile ("(.*) $");

  m = p.matcher ("abc");

  If (m.matches ()) System.out.println (p + ":" + m.replaceAll ("xyz"));

  unique

  p = Pattern.compile ("^(.*) $");

  m = p.matcher ("abc");

  If (m.matches ()) System.out.println (p + ":" + m.replaceAll ("xyz"));

  unique

  p = Pattern.compile ("(.)) (. *).)");

  m = p.matcher ("abc");

  If (m.matches ()) System.out.println (p + ":" + m.replaceAll ("xyz"));

  }

  }

  But the results vary depending on the type of update:

  (. *): xyzxyz

  (. +): xyz

  (.*?) : xyzaxyzbxyzcxyz

  (. * +): xyzxyz

  ^(.*): xyz

  (. *) $: xyzxyz

  ^(.*) $: xyz

  (. (.*).) : xyz

  Because all models have a capturing group that covers everything, but the replacement string has no references of group, I expect that in any case the replacement string would simply be returned unchanged (so just "xyz").

  I discovered a bug in the main library?  or am I misunderstood how it should work?

  Now for a real answer.

  (. *) will produce two matches "abc" and "" (the end of the string) because the * means we can have zero. Idk if this is a standard regex, but it is this that java is. So let's replace it with "xyz" and produce "xyzxyz".
  (. +) only has a game and works as expected
  (.*?) is lazy and weird and will be 4 groups to capture anything. To see, ' | ' which is a capture ' |. ' a | b | c | ». so we will produce "xyzaxyzbxyzcxyz".

  (.*+) Idk what it should even do lol

  so on, etc.

  All of this has to do with the fact that regex. * seems to act funny.

• Integrated Oracle database reports space usage out bad results?

  Hi members,
  
  I use GC 11g OEM. I created a group with 6-7 members.
  
  I generated built-in reports "Area of database using Oracle (Group)".
  
  -J' I note the sum of the current size (GB) / section "Use of space allocated by database" is equal to allocated (GB) / section "use of the current Cumulative space '... I consider that the data are correct. Current size allocated: 2, 3 to and used size to 1.8.
  
  Good news... BUT the picture is FAKE! and does not match this amount:
  On the chart allocated size (GB) is equal to 2 TB and used size (GB) is equal to 1.6 TB
  
  question 1: why such a difference?
  
  -Use of space allocated by database:
  Current database average maximum minimum
  Size (GB) used for free (GB) (GB) used (%) Size (GB) used for free (GB) (GB) used (%) Size (GB) used for free (GB) (GB) used (%) Size (GB) used for free (GB) (GB) used (%)
  INSTANCE1. PRD 1,085.77 895.14 190,63 82.44 898.63 1 085,67 187,04 82.77 898.63 1 085,67 187,04 82.77 898.63 1 085,67 187,04 82.77
  INSTANCE2. PRD 245.14 190.44 54.7 77,69 238,58 183.1 55,48 76,75 238,58 183.1 55,48 76,75 238,58 183.1 55,48 76,75
  
  2nd question: results are BAD = > section/size (gb) current is superior to section/size (gb) maximum?
  How to explain?
  
  Thanks for your comments.
  
  Best regards
  Guillaume

  Hi William,.

  1 - my diagram of db group is, with the correct values. Why it's different in your case I don't know. You do not have the latest installed SGD patches?
  2. same here. I some cases, max db size > current size, but it doesn't really bother me, since I barely use this report. You can check the calculation to help to create it as an option on the report of the "space of database using Oracle (Group)"

  Eric

• Bad results value amplitude and phase

  I try to add two Phasers of tension and to get incorrect when simulated results on Multisim using the frequency unique AC analysis. I changed the amplitudes of analysis AC from both sources to their respective values of 20 and 15 volts. The result of the addition should be size = 25 volts peak and phase = 66.87 degrees, which does not match results of Multisim. What I am doing wrong?

  Thank you in advance.

  You must click twice on the fickle source V1 and V2 and the "AC size' and the 'magnitude of AC Phase', change the settings.

  Also, depending on your preference, select Options of Simulation global preference, time = 0 if you want the right to shift to change phase or left, you can configure it here.  This setting affects your calculation of phase.

• Bad result in a left outer join in 12.1.0.2

  Hallo,

  We discovered a strange behaviour in a query. The query provides values in a column of outer join where there is no corresponding value in the table is attached to the outside.

  When you expand this request by the "ORDER BY" then this query gives the correct result.

  Example:

  SQL > desc tb_a
  Name                                Null?    Typ
  -------------------------------------------- ----------------------------
  ID NOT NULL NUMBER (19)

  SQL > desc tb_b
  Name                                Null?    Typ
  -------------------------------------------- ----------------------------
  CLOSED NOT NULL NUMBER (1)
  ID NOT NULL NUMBER (19)

  CCS_APPLICATION@icw01> select * from tb_a where id in (4148,4141,4195);

  ID
  ----------
  4148
  4141
  4195

  CCS_APPLICATION@icw01> select * from tb_b where id in (4148,4141,4195);

  INTERNAL ID
  ---------- ----------
  4148 0

  CCS_APPLICATION@icw01> SELECT
  2      b.id                            AS b_id,
  3      a.id                            AS a_id,
  4 b.closed AS b_closed
  5
  6 tb_a a
  7 LEFT OUTER JOIN tb_b b ON a.id = b.id
  8 WHERE a.id IN (4148, 4195, 4141)
  9 ORDER BY ASC a.id
  10;

  B_ID ALLOCATION A_ID B_CLOSED
  ---------- ---------- ----------
  4141
  4148 4148 0
  4195

  CCS_APPLICATION@icw01> SELECT
  2      b.id                            AS b_id,
  3      a.id                            AS a_id,
  4 b.closed AS b_closed
  5
  6 tb_a a
  7 LEFT OUTER JOIN tb_b b ON a.id = b.id
  8 WHERE a.id IN (4148, 4195, 4141)
  9 - ORDER BY ASC a.id
  10;

  B_ID ALLOCATION A_ID B_CLOSED
  ---------- ---------- ----------
  4148 4148 0
  4141 4141
  4195 4195

  instance parameter:

  VALUE OF TYPE NAME

  ------------------------------------ ----------- ------------------------------

  compatible string 12.1.0.2.0

  optimizer_features_enable string 12.1.0.2

  After ""alter system set optimizer_features_enable = ' 11.2.0.4 ';"  the query provides the correct result in both cases (ordered and unordered).

  Now the final question: is this a bug?

  1480970 wrote:

  Hallo!  Yes, I searched the Support of Oracle. I found some similar entries, but not an exact match. To fix some issues

  with 12.1.0.2.

  There is another interesting clue when look you on the execution plan:

  Note

  -----

  -the dynamic statistics used: dynamic sampling (level = 2)

  - This is an adaptation plan

  We have disabled (= FALSE) optimizer_adaptive_features and the query provides the correct values.

  This could be a solution for us.

  Looks like a pretty tight match for bug 18430870, even if it affects the two 12.1.0.1 and 12.1.0.2, which contradicts the Martin trial against 12.1.0.1.

  The description of the bug mentions disabling "_projection_pushdown" (set to false) should also be a viable solution, perhaps if you want to give that a try and see if it is a different bug or not.

  There are also a number of one-time fixes already available for download, maybe your version / platform is already covered, if the bug applies.

  Randolf

• "The remote server returned an error: (502) Bad Gateway" while matching Protected Site VC and recovery Site VC in VMware SRM

  Hi all

  I am trying to Setup VMware SRM 4.1 groups. I had configured hitachi usp vm storage based array replication in both sites.

  Now when I try to pair the two sites vCenter, I get an error at the end of the phase of matching as message "the remote server returned an error: (502) Bad Gateway ' on the protected site. But surprisingly, I am able to match both the vCenters on the recovering site.

  Please help me to get the problem.

  Thanks in advance,

  Sanjeev

  Run telnet server vCenter/SRM protected site to the recovering site server vCenter/SRM:

  Telnet IP_ADDRESS 80

  Telnet IP_ADDRESS 443

  You succeed?