Bryan, share your note, seriously.  I think if people express an interest for 
using an external scanner, they may implement it. I really think it makes sense 
for the reasons I stated. Of course I encourage anyone to contact them because 
that is the one way they really get the message from users.
On Jul 8, 2010, at 11:10 PM, Bryan Smart wrote:

> Yes; I'd be happy if they allowed us to use a Bluetooth laser scanner. Even 
> though a separate device would be required for the higher quality scans, 
> there are small scanners available. Beyond that, the important fact is that 
> the CPU portion (the iPhone), is very mobile. We can, today, use a computer 
> with a scanner to identify objects. Carrying a computer around the house 
> isn't handy. Carrying an iPhone to do the processing, though, isn't that 
> difficult. So, for me, there would still be value.
> 
> I suggest that they retain the functionality with the built-in camera, but 
> allow Bluetooth scanning for those that can purchase a scanner.
> 
> I'm not sure that I'm going to pursue a refund, but I'd encourage others to 
> withhold their money until the scanning quality has been addressed. If you 
> just buy the program as-is, they have little incentive to improve it.
> 
> Bryan 
> 
> -----Original Message-----
> From: macvisionaries@googlegroups.com 
> [mailto:macvisionar...@googlegroups.com] On Behalf Of Scott Howell
> Sent: Thursday, July 08, 2010 8:31 PM
> To: macvisionaries@googlegroups.com
> 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
>> 
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