Hi Carolyn, Yes that is what I was told and I should correct myself. I did state that trying to scan the barcode of a can is a little tricky, but I did manage it once. I have not tried the technique on a few other cans, but your tip is spot on. However, again, a good idea is to hold the phone against the item and back away during the scan process. That is how I did get a can scanned.
Thanks, On Jul 8, 2010, at 10:07 PM, Carolyn wrote: > Hey Scott:I don't know if this'll help at all, but I use an ID mate from > Nvision America. And I bring it up because from using it, I've learned that > the bar-codes on cans tend to be right around where the sceam of the label > is. Obviously, that doesn't work for canned pop. But, it's pretty flawless > with canned soups, veg, etc. This might help those using apps like Digiteyes. > > Carolyn > ----- Original Message ----- > From: Scott Howell > To: macvisionaries@googlegroups.com > Sent: Thursday, July 08, 2010 6:31 PM > Subject: Re: A warning about Digit-Eyes > > Bryan, > > I have used this application successfully with several types of packages. I > have found cans to be particularly tricky. I can tell you that my greatest > success seem to be starting out with my 3GS against the item, and once I > started the scan, slowly back the phone away from the item. Again, this > worked for me on several items. I have not run all over the house grabbing > everything with a barcode, so I can't say that I have encountered every > possible packaging type and this refers to shiny packaging, different color > combinations, etc. I don't even know for sure if these are factors. I agree > it would be nice if an external laser barcode reader could be used because > this would seriously speed up the process of scanning items in a store etc. I > put that suggestion out there and not sure if it will be considered or not. I > realize carrying such a device does defeat some of the purpose perhaps, but > it does allow for additional opportunities, such as someone who maintains > inventory etc. Perhaps you have and if not, share your experiences and > suggestion. > On Jul 8, 2010, at 6:03 PM, Bryan Smart wrote: > > > I'm writing to share my experiences with Digit-Eyes. > > > > I tried it on my iPhone 4, with several bar codes, and it didn't recognize > > even one of them. I don't mean that the code was located, but not > > recognized. I mean that the code was not even detected as being in the > > image. I'd tap the scan button, and the constant clicking would begin to > > let me know that scanning was in progress. I was scanning in a brightly lit > > room, and the screen curtain was not on. Rotating the containers in front > > of the iPhone camera, with it held about a foot away from them, produced no > > results. I had a sighted friend deliberately place the bar code in view, > > something that I would have not been able to do on my own, and it wasn't > > recognized, either. We just kept trying different angles, and rotating, but > > all we got was more clicking from the Digit-Eyes scanner. > > > > I had some experience with creating a system like this several years ago. > > At that time, CCD cameras were not as accurate. Even so, for best results, > > we determined that a 3D laser scanner would be required in order for bar > > codes to be detected in the way that a blind person is likely to present > > them to the scanner: at angles, in shadow, etc. This is the technique used > > by other commercial systems like the ID Mate. I was lead to understand that > > this wasn't a concern with Digit-Eyes, due to the higher quality camera in > > the iPhone 3GS and iPhone 4. However, based on my results, I'd say that > > this isn't so. > > > > Perhaps Digit-Eyes works better with dedicated labels, but, if I were to > > make dedicated labels, I'd just create Braille labels. I realize that > > everyone doesn't read Braille, and so audio labels still might be of use to > > some people. However, the advertised function of being able to read bar > > codes seems to not work, or else, it might work, but requires a level of > > alignment precision that I've not been able to achieve. I'm usually quite > > capable when it comes to reasoning through these types of situations, so my > > conclusion is that I've either overlooked something profound, or else the > > level of alignment that is required for a good scan is grater than most > > blind people will independently obtain without assistance. If you need > > assistance, you might as well ask the sighted person what is on the label. > > *shrug* > > > > I'd like to hear the experiences of others. However, I can't personally > > suggest that anyone spend the $30 that is charged for this app if they > > expect to use it as a bar code scanner. > > > > Bryan > > > > -- > > You received this message because you are subscribed to the Google Groups > > "MacVisionaries" group. > > To post to this group, send email to macvisionar...@googlegroups.com. > > To unsubscribe from this group, send email to > > macvisionaries+unsubscr...@googlegroups.com. > > For more options, visit this group at > > http://groups.google.com/group/macvisionaries?hl=en. > > > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To post to this group, send email to macvisionar...@googlegroups.com. > To unsubscribe from this group, send email to > macvisionaries+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/macvisionaries?hl=en. > > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To post to this group, send email to macvisionar...@googlegroups.com. > To unsubscribe from this group, send email to > macvisionaries+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/macvisionaries?hl=en. -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. 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