One of the recent mobile phone trends is a dual rear camera where the two cameras are 90-deg rotated with respect to each other to shoot pictures in horizontal and vertical direction, such as in Pixavi ImpactX phone:
Omnivision patent application US20140320715 "Imaging systems and methods using square image sensor for flexible image orientation" by Bahman Haji-khamneh, Harish Iyer, and Vinoo Margasahayam, implements this feature with a single square image sensor:
Omnivision patent application US20140320715 "Imaging systems and methods using square image sensor for flexible image orientation" by Bahman Haji-khamneh, Harish Iyer, and Vinoo Margasahayam, implements this feature with a single square image sensor:
