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Wednesday, February 20, 2013
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SlashGear 101: HTC UltraPixel Camera Technology_Technology, Technology News, Mobile, HTC, Smartphone

Wednesday, February 20, 2013







Below you’ll find a timeline of HTC One hands-on or otherwise

in-depth explorations from SlashGear. We’ll also have a full review of

the HTC One up sooner than later, so be sure to stick around for the big

drop! Seeya then!


This week we’re seeing HTC come into the light

with a massively important new device by the name of HTC One, and with

it, a new collection of features included under the “HTC UltraPixel

Camera” umbrella. With the features we’re working with here on the HTC

One hero phone’s implementation of HTC UltraPixel Camera, you’ll find

that image quality is, first and foremost, not solely dependent on the

amount of megapixels a camera has. HTC UltraPixel Camera technology is

here demonstrated with an UltraPixel Sensor, HTC ImageChip, f/2.0

Aperture, and Optical Image Stabilization.




ultrapixel











UltraPixel Sensor



HTC is bringing what it calls its first UltraPixel sensor to the

market with the HTC One, showing off the full setup in the image you see

below. This image shows the HTC ImageChip architecture (not unlike what

we saw with each of the HTC One models in the past), the UltraPixel

Sensor itself, an f/2.0 Aperture, and the HTC One’s lens. With the

UltraPixel sensor, you’ll now be working with larger pixels than the

average camera.




ultrapixel




With the UltraPixel Sensor collecting UltraPixel-sized pixels, you’ll

be getting the ability to capture “300% more light than many of the 13

megapixel cameras on the market.” Each pixel contains more light and

more data than ever before, all this with a sensor whose size is

equivalent to that of a standard 8MP or 13MP smartphone camera. This

UltraPixel Sensor is a CMOS BSI and is classified as having a 1/3′

sensor size.




rain




Each photo you’re going to be taking will be 2688 x 1520 pixels in

size on the HTC One at a 16:9 aspect ratio, and you’ve got a 5 piece

lens element setup with a focal length of 3.82mm. Each one of the pixels

you’re picking up here is a 2.0 micrometer UltraPixel. These pixels

have “effectively” twice the surface area of the standard pixels you’re

working with on 8MP and 13MP setups, those being generally 1.4

micrometers and 1.1 micrometers respectively.




pixelsize




In effect, you’ve got the same size photo, but instead of creating

smaller pixels to fill the area as larger megapixel cameras are doing,

HTC is creating larger pixels to fill the area. This results in the HTC

One’s camera being 4MP strong, but creating photos that are the same

size – and better quality – than the larger megapixel solutions. File

sizes are smaller for the HTC-taken photos here as well.






HTC ImageChip



With the newest edition of HTC’s own ISP (Image Signal Processor), you’ll find that the HTC ImageChip feature collection has expanded since the HTC One X arrived on the scene right around a year ago with ImageSense.

The first big innovation is a rather speedy 200ms full distance scan

for use with Continuous Auto Focus. That’s quicker than a human blink –

you’ll have a harder time being out of focus than you will getting

instant focus.




28080290_8KGMRX-17-580x435




Next you’ll find Real-Time Video HDR – with a dynamic range that can

be cranked up to a lovely -92dB, you’ll be able to “match the human eye

capability” as you capture interlaced frames at 60fps. You’ve what HTC

notes is “always on” HDR here for video, even at HD 1080p. Due to the

nature of the curved lens, darker spots appear near the edge of your

photos almost no matter what – HTC has compensated for this with an

algorithm designed specifically for the HTC One’s hardware.




28080290_8KGMRX-15




This newest HTC ImageChip also works with de-noise processing on both

the front and the back-facing camera on the HTC One. With this simple

concentration of effort, HTC says noise is cleanly removed at all times.






f/2.0 Aperture



HTC shows quite simply how the HTC One uses the largest of three

apertures available in some of the best selling smartphones on the

market today, with the Galaxy S III working with an f/2.6 and the iPhone

5 utilizing an f/2.4. With the HTC One’s f/2.0 size, one whole heck of a

lot more light is able to be let in, this resulting in better results

in low-light photo conditions.




aperture






Optical Image Stabilization



The HTC One’s camera setup allows its camera to capture a full sized

photo as fast as 1/48 of a second. This compares with the current market

standard of 1/30 of a second, that speed also the best the HTC One X

can do currently. Along with this you’ve now got a real-deal physical

optical image stabilizer (OIS) on the HTC One working with the

smartphone’s dedicated imaging gyroscope.




ois_go




With its own OIS, the HTC One’s lens physically moves according to

what the dedicated imaging gyroscope tells it, this countering the

inevitable shake that happens when someone takes a photo without a

tripod. This OIS is different from the more common digital stabilization

used on many competitor model solutions, those solutions opting to cut

out shaking bits of the photo, reducing the resolution of the photo in

the process.




ois3




The HTC One’s OIS works at an “unprecedented” frequency of 2000Hz and

has been made small enough to fit inside the HTC One’s relatively thin

chassis. Working on two axis, this OIS detects pitch and yaw movements

and counters them at 2000 times a second. Video quality is also

significantly improved over past solutions as the OIS effectively

removes background shakes and mimics smooth panning, top to bottom.


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