Multishot is the future of mobile photography Almalence

Multi-shot is the future of mobile photography © Almalence Incorporated www. almalence. com

Imaging – why is it important? • The smartphones become more and more alike • Camera features and quality can still make the difference

How to boost Camera performance? Mobile camera has fundamental limitations due to: • Tiny lens • Small pixels • No optical zoom The solution: use MULTISHOT techniques

How to boost Camera performance? An example: • Human eye has only 1: 100 dynamic range (less than a mobile camera). • It is not possible to physically improve the eye • But, by re-scanning the scene and re-adjusting it can capture up to 1: 1, 000 dynamic range! So the physical ‘device’ is improved 10000 times by proper capturing and post processing.

Why Multishot is an improvement Pixels and Alcohol* *Inspired by: presentation by Joachim Linkemann from Basler AG

Full-well and Saturation Capacity Full-well Saturation Each pixel has a maximum capacity to collect electrons.

Signal to noise ratio The „noise“ is equivalent to the Refill levels

Dark noise There is some remaining noise, although no light hits the sensor. Dark noise

Dynamic range = Full / Empty = Saturation Cap. / Dark Noise Saturation Dynamic range Dark noise

Pixels get smaller SNR and dynamic range diminishing

Multi-shot Easy way to: Multiply SNR Increase dynamic range Improve low-light performance Improvement proportional to

Resolution Displacements between the shots make it possible to increase resolution

Curses of multi-shot Mis-alignment: Spatial Radiometric

Curses of multi-shot Moving objects = Ghosting

Almalence answers Sub-pixel accuracy spatial alignment: Almalence has carried it's DSLR expertise into mobile world Rolling-shutter effects mitigated Precise radiometric alignment Sophisticated de-ghosting techniques suitable for various multi-shot scenarios Proprietary patented technologies

Almalence multi-shot solutions Super Resolution Zoom HDR Blur. Less Exposure Panorama Object removal More to come