A Zoom Technology Missing from iPhone 11 Pro

Despite having a telephoto camera module, iPhone 11 Pro zoom is still far behind the top performers which use Super Resolution Zoom.

Zoom has recently become one of the most important features of smartphone cameras with the leading OEMs advertising their devices achieving high picture quality at sometimes crazy zoom levels.

As every high-end smartphone, iPhone 11 Pro uses a dedicated telephoto camera module to achieve the maximum zoom quality. It appears however, that simply utilizing a telephoto module, even of a great design and quality which is undoubtedly the case with an Apple’s product, is not enough to achieve the top zoom performance. According to the DxOMark benchmark, iPhone 11 Pro achieves Zoom Score of 74 while, for example, Xiaomi Mi 10 Pro hits 110, a drastic 1.5x difference!

To go beyond the camera hardware capabilities, top Zoom performers utilize a computational imaging technique, Super Resolution Zoom. As its name suggests, it uses super resolution technique to increase the resolution of the images suffering from the lack of pixels in case the target zoom level exceeds the optical zoom of the telephoto module.

For example: zooming 4x with a 12 MP 2x telephoto module uses only 1/4 of its sensor, or just 3 Megapixels.

Besides improving the resolution, Super Resolution Zoom also increases the SNR, lost due to small aperture of a telephoto module, the higher the optical zoom level – the smaller is the aperture.

We made a few tests to check how Almalence Super Resolution Zoom, the most advanced digital zoom technology, would improve iPhone 11 Pro zooming capabilities. Check a couple of examples below:

iPhone 11 Pro, 4x zoom. Left: iPhone as is, Right: with Almalence Super Resolution Zoom

iPhone 11 Pro, 4x zoom. Left: iPhone as is, Right: with Almalence Super Resolution Zoom

The pictures speak for themselves. Apple can definitely achieve better zoom picture clarity by utilizing a computational super resolution technology.

xTeleZoom extends the lossless zoom range of iPhone 7+ dual camera

Computational imaging technology increases the resolution and enables high quality zoom beyond iPhone 7+ 2x telephoto camera hardware.

February 27, 2017. Barcelona.
Today at Mobile World Congress, Almalence, the leader in computational imaging technologies announced its xTeleZoom app for the iPhone, enabling extra high quality zoom capability. Using a sophisticated computational technique, the app is able to dramatically preserve resolution and suppress the noise while zooming.

Mobile phone photography is still limited in its ability to zoom in without sacrificing resolution and image detail. While there is no practical way to create an optical zoom solution in mobile form factor constraints, the phone makers, including Apple, add an extra telephoto camera to their devices to provide good zoom quality. This approach, however, is able to provide only a limited optical zoom factor as the longer focal length lenses in mobile size constraints suffer from decreased aperture, resulting in low resolution and high noise level.

“We developed xTeleZoom because even the most advanced hardware solutions alone cannot address the need for taking high quality zoom photos”, said Eugene Panich, CEO of Almalence. “The decreasing thickness of new phone generations poses bigger challenges on the lenses ability to zoom and resolve good image quality. Software like xTeleZoom is the only practical way to break the zoom quality barrier”.

Almalence’s xTeleZoom uses computational imaging technology that enables better zoom shots from the iPhone without compromised image quality. Originally developed for professional photography it’s now available as an iPhone app to extend the high quality zoom range of the telephoto camera of the iPhone 7+. The users of the iPhone 6, iPhone 6s and iPhone 7 models without a tele camera will also benefit from higher quality zoom using the xTeleZoom app.

xTeleZoom is available on iTunes for $.99: https://itunes.apple.com/us/app/xtele-zoom/id1189050574

xTeleZoom enables lossless zoom for iPhone

About Almalence
Almalence, an Intel Portfolio Company, is the global leader in computational imaging technologies used in a wide range of optical systems from high-end DSLR cameras to mobile phones. Almalence’s solutions are licensed by top smartphone OEMs. Almalence Inc. is a privately owned company with headquarters in Austin, Texas and the team distributed across the world – USA, Russia, Israel, China, and South Korea. For more information about Almalence technologies please visit www.almalence.com.