Introducing the OV64C – Omnivision’s first 64 megapixel sensor
While Samsung and Sony are looking for superiority in this market, there is also a third competitor who is slowly Away from the noise, he is busy in the market of his products. This competitor is a Chinese company called “Omnivision”, which of course is headquartered in the United States. Amnivision has not yet been able to achieve much success in the field of camera sensors, but apparently it is determined to compete in the market.
In recent years, some smartphone manufacturers have used Omnivision image sensors for the secondary camera in their dual, triple, or quadruple camera lineup. Of course, the sensors of this company are also used as the main camera sensor in some smartphones, including Xiaomi Mi A1 and OnePlus 2 mentioned. This company introduced the sensor OV48C placed itself among the market contenders at the CES 2020 event. The specifications of this 48-megapixel sensor are theoretically higher than the current 64-megapixel sensors on the market, because the pixel size has increased while keeping the resolution constant.
Now, after introducing the 16 megapixel sensor OV16B10 in June 2017 and the 48 megapixel sensor OV48C In January 2020, we learned that Omnivision in On Tuesday, February 18, 2020 (Bahman 29, 2018) from its newest image sensor named OV64C unveiled. As the name suggests, this is Omnivision’s first 64-megapixel sensor, and with pixels as large as 0.8 microns, it measures 1.7-inches (just like the ISOCELL GW1 and IMX686). First of all, we must say that the specifications of this sensor are similar to those of competing sensors, which means that the OV64C does not have a significant advantage over the likes of the IMX686 (unlike the OV48C, which, at least on paper, was head and shoulders above its peers).
We must know that one of the major limitations in cameras is the size of the pixels. The OV48C’s 1.2-micron pixel size (effectively 2.4 microns) is unprecedented for a (high-resolution) smartphone camera. While the 0.8 micron pixel size on the OV64C (which actually increases to 1.6 microns) is no different than the pixel size on other competing sensors.
The OV64C sensor is based on Amnivision’s proprietary stacked substrate technology – that is, PureCel Plus – and according to the manufacturer’s claim, while providing the possibility of powerful photography, it can bring exceptional 4K video recording (with electronic stabilizer) to smartphones. bring. Among the features of this sensor, we can mention 4-cell rearrangement for Bayer output with full resolution and digital crop zoom. Also, thanks to the CPHY interface, the OV64C sensor can achieve higher throughput using fewer pins. This feature can make the 64-megapixel OmniVision sensor a good choice for the main camera in a multi-camera setup on the back of a smartphone.
According to Arun Jayaseelan, director of staff marketing at Omnivision, TSR (a market research company) estimates that in 2020, around 127 million image sensors with a resolution of 64 megapixels or higher will be shipped to smartphone manufacturers. Supplied. He expressed hope that the OV64C sensor – with its resolution and advanced features – can respond to a part of this growing market demand and attract the attention of high-end smartphone designers.
According to Amnivision’s claim, the result of combining the on-chip 4-cell color filter with the hardware rearrangement in this sensor will be a 64-megapixel Bayer output with a quality that is real-time and without No time delay is achieved. This makes the OV64C sensor look like a Quad Bayer sensor, as all Quad Bayer sensors have a QCFA, but the “64MP Bayer output” – as claimed by Omnivision for this sensor – is ambiguous. In low-light conditions, this sensor uses close pixel combining technology to produce images with a resolution of 16 megapixels and 4x sensitivity, in which case the size of the sensor’s pixels for preview and photography will be equivalent to 1.6 microns. Not to mention, if you use crop (cut) to achieve digital zoom up to 2x, it will have a resolution output equivalent to 16 megapixels.
The OV64C sensor is able to increase the accuracy of autofocus – especially in low-light environments – by benefiting from the 2×2 microlens type 2 phase detection autofocus. This is the same technology used in the construction of one of Sony’s future sensors, which is also supposed to be used in the construction of the Oppo Find X2. The output formats of this sensor are as follows: 64 megapixel photo with a speed of 15 frames per second, 8K video with a speed of 30 frames per second, 16 megapixel photo with a combination of 4 pixels with a speed of 30 frames per second, 4K video with a speed of 60 frames per second. And finally, 4K video with electronic stabilizer at a speed of 30 frames per second. Not to mention, the OV64C supports HDR timing (with 3 exposures) for videos with resolutions up to 16MP.