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HTC Announces Ultrapixel Camera

HTC One smartphone features UltraPixel camera "that includes a best-in-class f/2.0 aperture lens and a breakthrough sensor with UltraPixels that gather 300 percent more light than traditional smartphone camera sensors. This new approach also delivers astounding low-light performance and a variety of other improvements to photos and videos."

The camera spec does not tell how many pixels the camera has, saying instead that the sensor is of BSI type, has 2.0um pixels and 1/3-inch format. The camera has F2.0 lens with OIS. Both front and back cameras support HDR in stills and video mode.

Once we talk about HDR, the new Nvidia's Tegra 4i is the second application processor that supports "always-on HDR" imaging.

Update: CNET published HTC's director of special projects Symon Whitehorn comments on why HTC flagship smartphone has only 4MP resolution: "It's a risk, it's definitely a risk that we're taking. Doing the right thing for image quality, it's a risky thing to do, because people are so attached to that megapixel number."

HTC Ultrapixel page shows few illustrations:

HTC One vs iPhone 5 comparison

HTC marketing efforts are aimed against high megapixel sensors:

Typical Smartphone CameraDifference
HTC Zoe™ Camera with UltraPixels
Lens with F2.0 apertureLens with F2.8 aperture1.96x more light entry than F2.8
2.0um pixel size~1.4um pixel size (on typical 8MP sensors)
~1.1um pixel size (on typical 13MP sensors)
2.04x more sensitivity than 1.4um
3.31x more sensitivty than 1.1um
2-axis optical image stabilizer2-axis optical image stabilizerAllowing longer exposure with more stability, resulting in higher quality photos with lower noise and better lowlight sensitivity
Real-time hardware
HDR for video (~84db)
No video HDR (~54db)~1.5x more dynamic range with 84db compared to 54db in competitions

HTC One camera spec:
Sensor TypeCMOS BSI
Sensor Size1/3'
Sensor Pixel Size2um X 2um
Camera Full Size Resolution2688 x 1520 16:9 ratio
JPEG
Shutter speed up to 48fps with reduced motion blur
Video Resolutions1080P up to 30fps
720P up to 60fps
1080P with HDR up to 28fps
768x432 up to 96fps
H.264 high profile, up to 20mbps
Focal Length of System3.82 mm
Optical F/# ApertureF/2.0
Number of Lens Elements5P
Optical Image Stabilizer2-axis, +/- 1 degree (average), 2000 cycles per second
ImageChip / ISP EnhancementsHTC continuous autofocus algorithm (~200ms), De-noise algorithm, color shading for lens compensation
Maximum frames per secondUp to 8fps continuous shooting
HTC Announces Ultrapixel Camera HTC Announces Ultrapixel Camera Reviewed by MCH on February 19, 2013 Rating: 5

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