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Create own VWL-File

September 24, 2013 - 5:18am #1

Hello,

is it possible to create a VWL-file by my own or to use only the additional Dictionary and remove the default dictionary entries? I don't need the default dictionary.

Thanks for your support.

René

Create own VWL-File

March 22, 2014 - 2:27am #10

Hi, if you wish to get your own custom VWL list, (so to try to solve the 49+ MB issue), what you can do is to try and contact:

www.vuforia.com/contact

Note that this is also indicated in the developer guide, which I copy-paste here for you:

To completely replace the default word list with a new custom set of words (e.g., for domain-specific terminology), contact the Vuforia support team for a VWL word list file for your custom set of words.

Nevertheless, the recommended approach still is to use the White List technique, as you are already doing (rather than replacing the whole VWL).

As a side note, we sometimes refer to the documentation (as you remarked), because you can often find the answer to your question already in there.

 

 

 

 

 

Create own VWL-File

March 21, 2014 - 4:17pm #9

Have there been any updates on generating a custom vwl? Without one selected, the section greys out and while it would be possible to simply modify the script to avoid this behavior, it would also be nice to have my own list.

I understand that from a performance standpoint there is no loss doing the default list and a whitelist or blacklist. The issue I have is that Unity already adds a nice 49MB to my application and that list puts me just over the cutoff for a single application binary. In terms of performance, using the list now DOES degrade my performance because it forces loading an external obb simply for that list.

I know it is a long shot, since a lot of the answers seem to be "refer to the documentation" but I am hoping at some point there are some answers for people that the documentation simply isn't enough to cover.

Create own VWL-File

January 18, 2014 - 4:21am #8

Hi, a good starting point is to read the dev guide on Text Reco:

https://developer.vuforia.com/resources/dev-guide/word-targets

Then, for the specific implemntation details in Unity (what API to use, how to handle the Tex Reco prefab, etc.), also including how to handle black and white lists, please check this page:

https://developer.vuforia.com/resources/dev-guide/word-targets

 

Create own VWL-File

January 17, 2014 - 10:21am #7

NTSInnovation wrote:

AlessandroB wrote:

In addition to Nalin's comments, one important thing to keep in mind:

if you have a limited set of Words (e.g. up to a maximum of a few thousands) that you want to recognize, you can add them as "additional words" and then use a WHITE_LIST filter, by specifying your custom words as the Filter List;

this will make the engine to only recognize your custom words, while ignoring all the others from the default VWL.

(and if you follow this simple approach, you won't need to contact Vuforia.com).

Thanks, i already tried it and it works like a charm, but i think that the performance could be improved if i don't use white or black-lists. But i don't know how exactly white and black-lists are implemented and if there is realy a detection performance gain ;-) 

 

Hello,

I'm new in Unity, actually I want to make my own word list, but I think I'll try to add default word list and make white and black list, but for this time I can't find how to make white and black list word, please could you help me? 
Thanks

Create own VWL-File

September 25, 2013 - 4:18am #6

AFAIK, based on our tests, using additional words + white list should not introduce any performance degradation (when compared to use a custom VWL);

 Replacing the default VWL list is only recommended in case you want to use a custom dictionary which has more than 10,000 words (as in that case, the white list filter approach would not work).

 

Create own VWL-File

September 25, 2013 - 3:04am #5

NalinS wrote:

 

https://developer.vuforia.com/resources/dev-guide/word-targets

To completely replace the default word list with a new custom set of words (e.g., for domain-specific terminology), contact the Vuforia support team for a VWL word list file for your custom set of words.

I already send an Email to the Support Team, but i got the feedback that i should post my question to the support forum ;-)

But thanks i will try it again ;-)

Create own VWL-File

September 25, 2013 - 3:02am #4

AlessandroB wrote:

In addition to Nalin's comments, one important thing to keep in mind:

if you have a limited set of Words (e.g. up to a maximum of a few thousands) that you want to recognize, you can add them as "additional words" and then use a WHITE_LIST filter, by specifying your custom words as the Filter List;

this will make the engine to only recognize your custom words, while ignoring all the others from the default VWL.

(and if you follow this simple approach, you won't need to contact Vuforia.com).

Thanks, i already tried it and it works like a charm, but i think that the performance could be improved if i don't use white or black-lists. But i don't know how exactly white and black-lists are implemented and if there is realy a detection performance gain ;-) 

Create own VWL-File

September 24, 2013 - 6:48am #3

In addition to Nalin's comments, one important thing to keep in mind:

if you have a limited set of Words (e.g. up to a maximum of a few thousands) that you want to recognize, you can add them as "additional words" and then use a WHITE_LIST filter, by specifying your custom words as the Filter List;

this will make the engine to only recognize your custom words, while ignoring all the others from the default VWL.

(and if you follow this simple approach, you won't need to contact Vuforia.com).

 

 

Create own VWL-File

September 24, 2013 - 6:39am #2

https://developer.vuforia.com/resources/dev-guide/word-targets

To completely replace the default word list with a new custom set of words (e.g., for domain-specific terminology), contact the Vuforia support team for a VWL word list file for your custom set of words.

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