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2019-07-15 11:14:40 Upload
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Cameras are probably the most important thing on a smartphone these days. I say cameras coz apart from the Google Pixel, every smartphone has at least two on the back, going all the way to even five of them. However, the latest trend seems to be increasing the megapixel count of the primary sensor. The rage right now seems to be 48MP sensors. Sony kicked off the trend with its48MP IMX586 sensor. It was followed by Samsung with its 48MP ISOCELL Bright GM1sensor and the GM2 sensors. Now, the latest company to join the group is OmniVision 48MP OV48B sensor. OmniVision Technologies is a leading developer of advanced digital imaging solutions, its first 48 megapixels (MP) image sensor featuring a 0.8-micron pixel size to enable high-resolution smartphone cameras in a 1/2" optical format. Built on Omni Vision’s PureCel® Plus stacked die technology, this sensor provides leading edge still image capture and video performance for both mainstream and high-end smartphones. Additionally, theOV48B offers a wide range of features such as digital crop zoom and a PHY interface, making it a versatile sensor for all types of rear-facing cameras in multi-camera configurations, including main, wide angle and telephoto. So, without wasting your time let's talk about OmniVision OV48B 48 megapixel sensors now.
The OV48B integrates an on-chip 4-cell color filter array and hardware-mosaic, which provides high quality, 48 MP Bayer output in real time. In lowlight conditions, this sensor can use near-pixel binning to output a 12 image with four times the sensitivity. In either case, the OV48B can consistently capture the best quality images without motion blur, as well as enabling digital crop zoom with 12 MP resolution and fast mode switch. Additionally, it can be used with a wide field-of-view and a CPHY interface for dual- and tri-camera configurations with dedicated wide- and ultra-wide-angle capabilities. Output formats include 48 MP at 10 frames per the second (fps), 12 MP with 4-cell binning at 30 fps, 4K2K video at60 fps, 1080p video at 240 fps and 720p video at 480 fps. Pad locations on the left and right of the image sensor, in combination with the industry's smallest 48 MP die size, provide smartphone camera module designers with additional flexibility.
➤ OmniVision OV48B 48MP Sensor
The OV48B is the first 48MP image sensor from OmniVision, featuring a0.8-micron pixel size. The camera sensor is built on Omni Vision’s PureCelPlus stacked die technology and offers features like digital crop zoom, both DPHY and CPHY MIPI interfaces, The sensor integrates an on-chip4-cell color filter array and hardware re-mosaic to provide 48MP Bayer output. For low light, the sensor can also use pixel binning to output a 12MPimage. The sensor also includes 2×2 microlens PDAF for low-light focusing. This new sensor also features both DPHY and CPHY MIPI interfaces and 2 by 2 microlens phase detection autofocus (ML-PDAF) to boost accuracy, especially in low light. Output formats include 48MP at 10 frames per second (fps), 12 MP with4-cell binning at 30fps, 4K2K video at 60fps, 1080p video at 240 fps and720p video at 480fps. Features include digital crop zoom with 12-MP resolution and DPHY and CPHY MIPI interfaces that enable fast frame rates using fewer pins. It integrates an on-chip four-cell color filter array and hardware-mosaic to deliver 48-MP Bayer output in real time, even in low-light conditions. A 2 × 2 microlens phase-detection autofocus (ML-PDAF) boost accuracy. It also uses near-pixel binning to output a 12-MP image with 4× sensitivity.
Sony and Samsung, on the other hand, lists the IMX586's formats as 4Kvideo at 90 fps, 1080p at 240 fps, and 720p at 480 (with cropping). Omnivision's OV48B is also specified as possessing 2x2 microlens phase detection autofocus, (ML-PDAF), which apparently enhances its accuracy, particularly in low light. That of the Sony sensor, on the other hand, is known as image plane phase-difference AF (IP-PDAF). OmniVision does not mention of any kind for its new OV48B, whereas the IMX586 is capable of this property. All in all, time may tell which of these 48MP sensors is the best - presuming that OEMs take up Omnivision's new offering. The company has indicated that it can send manufacturing samples from now, with full availability of the newOV48B product planned for the last quarter of 2019.
Many smartphones have used an OmniVision sensor in the past, either for their front or rear camera setup. The sensors are usually found in the lower end of the smartphone market. OmniVision Technologies Inc. has announced the OV48B, its first 48megapixel image sensor featuring a 0.8-micron pixel size to enable high resolution smartphone cameras in a half-inch optical format. Built on OmniVision’s PureCel-Plus stacked die technology, the sensor provides still image capture and video performance for both mainstream and high end smartphones.
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