Omnivision’s new OV50E image sensor combines 50-Mpixel resolution and 1.0-µm pixel size in a 1/1.5” optical format. Touted as offering industry-best low-light imaging and high-dynamic-range (HDR) video capture, the device is intended as a rear-facing camera module for high-end and mainstream smartphones.
Who Needs It & Why?
Video consumption is quickly becoming the predominant source of information for people, and smartphones are replacing professional equipment for video capture. However, smartphones have historically not been adept at zooming. The OV50E provides video HDR crop zoom support, which allow users to seamlessly switch between full and smaller resolution with full HDR capabilities.
Under the Hood
The OV50E features staggered HDR and Omnivision’s DCG technology for improved HDR and crop zoom support, 100% quad phase detection (QPD) for enhanced autofocus, and better low-light performance over previous-generation image sensors. Staggered HDR and the patented DCG technology extend dynamic range and reduce motion artifacts in challenging lighting conditions, and together with a built-in dual conversion gain combination, provides single-exposure HDR support. The maximum dynamic range reaches more than 100 dB.
In addition, OV50E’s second-generation QPD enables 2x2 phase-detection autofocus (PDAF) across the sensor’s entire image array for 100% coverage, resulting in improved distance calculation, faster autofocus, and better low-light performance. Premium image quality is further enabled by the combination of on-chip remosaic for the QPD color filter array to full Bayer resolution.
Omnivision can claim for the OV50E image sensor the best low-light performance in its class, thanks to its combination of a large 1.0-µm pixel size, built-in advanced noise reduction technology, and high gain mode support. The OV50E can achieve up to 64× analog gain for full resolution, or 256× analog gain for four-cell binning resolution. Built on the company’s PureCel Plus-S stacked-die technology, the OV50E can also use near-pixel binning to output a 12.5-MP image or 4K2K video with four times the sensitivity, yielding 2.0-µm-equivalent performance for preview and video. In either case, the OV50E can consistently capture the highest quality images, as well as enabling 2× digital crop zoom with smaller resolution and fast mode switch.
Output formats include 50-MP, or 8K video, with QPD autofocus at 30 frames per second (fps); 12.5 MP with QPD autofocus at 60 fps; 4K2K video with QPD autofocus at 60 fps; and 1080p at 240 fps. The OV50E supports the CPHY/DPHY MIPI interface and dual DOVDD 1.8/1.2v.
OV50E samples will be available in Q3 2022.