Google I/O 2012 highlights: Nexus 7, Jelly Bean, Project Glass and more

Google I/O, is in its fifth year. Last year, the company announced 100 million Android devices were activated. This year, it’s 400 million! During the conference, Google revealed three major highlights: Nexus 7 Tablet, Android 4.1(Jelly Bean), and Google Glass.

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Tips for business card scanning apps

ocr scanning business cards

1. OCR is not 100% accurate all the time.

2. The most important thing for business card scanning apps is the quality of initial image. The background, the font size, the font color, the clearness of objects and other aspects all affect the quality of the image taken by your camera(or phone camera) and will affect the recognition results finally.

3. 300 DPI is the standard quality for image to scan. Why? 300 DPI is just that number where you gain the most accuracy without sacrificing speed and file size according to analysis. Because the improvement gap between 200 DPI scan and 300 DPI scan will be at least 2 times the improvement gap of any other resolutions. However, the improvement gap of 300 DPI and 400 DPI  is nearly absent.
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iPhone 5 might get DSLR-like replaceable camera lenses

With the unveiling of iOS 6 during the WWDC 2012, we know that iPhone 5 is getting close to us now. And many websites are touting that the release date could hit as early as September 2012.

A recent Apple patent filing for replaceable lenses on the iPhone shows that Apple will continue to strengthen its photography ability. As we know, iPhone has been the most popular camera on Flickr for years. (Note: There are 3 most popular camera from Apple: iPhone 3GS, iPhone 4, iPhone 4S). I think the replaceable lenses will bring an advantage to iPhone 5, especially when iOS 6 will upgrade with the sharing features like PhotoStream and iOS-wide integration of support for Twitter and Facebook.

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OCR, DPI and accuracy

What is OCR? OCR is short for optical character recognition. It’s a technology which anbles you to change any scanned images of handwritten, typewritten or printed text into machine-encoded text. OCR is now used in many enterprises, not just libraries and goverments.(Note: OCR is not new. Because it has been developed since 1912)

Now, OCR can reach 98% accuracy. But it will decrease the accuracy when processing the images with different quality. And for OCR softwares, the quality of images is really important. Basically, the OCR softwares require a 200 megapixel camera with auto focus at least.

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Will 16MP Omnivision camera appears on iPhone 5?

Camera is a competitive area for smartphone manufacturers. Samsung Galaxy S3 and iPhone 4S use the same camera sensor from Sony, while Nokia will release Nokia 808 PureView with crazy 41 mega pixels on June.

Apple has introduced significant improvements to the iPhone’s camera capabilities in nearly every generation of iDevice so far. And when I get a new iPhone with new camera, it always make me feel it’s whole new phone even other hardware specs don’t get a lot of improvements. iPhone camera is so excellent that people love to take photos by iPhone. It’s said that iPhone has been the most popular camera on Flickr for years. And there is so-called iPhoneography.

Recently, camera rumors for iPhone 5 are increasing sharply. As we know, Omnivision had supplied 3MP camera for iPhone 3GS and a backside-illuminated 5MP camera for iPhone 4 except iPhone 4s. iPhone 4S’s 8MP camera is from Sony instead of Omnivision.

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Apple accelerated its evolution on discoverability of App Store

We all know App Store is a success for Apple. Thousands of developers have developed excellent businesses there. However, with over 500,000 applications on offer in the App Store, it is really difficult to stand out from the competition. And on the App Store, there are few ways to promote the apps. “New and Noteworthly” is really important for every new app but only a few can have a chance to be selected by App Store, let alone hit top spot on “Top Charts”. For a long time, “New and Noteworthly” seems the only way for new apps to became famous on the App Store. And Apple has found itself facing a growing problem of how to help users discover new app, too.

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