OmniVision unveiled its first camera sensor with 100% phase detection coverage. It uses Quad Phase Detection (QPD) technology where all pixels (in groups of 2 x 2) are used for focus detection. This is similar to Sony’s 2 x 2 on-chip lens system and might prove superior to the Dual Pixel tech used by Samsung (this sensor clearly wants to take on the ISOCELL GN1). QPD enables faster autofocus, especially in the dark. It also improves distance calculations (so bokeh and similar effects will be more accurate). The chip has on-board hardware to do remosaicing of the QPD color filter array,...
Source: https://www.gsmarena.com/omnivisions_new_ov50a_sensor_has_100_phase_detection_autofocus_coverage-news-47797.php
