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Sony has introduced a new 1/1.7-type stacked CMOS image sensor, the IMX324, equipped with the industry's highest resolution. It is enabled with 7.42 effective megapixels RCCC filter for forward-sensing cameras in advanced driver-assistance systems (ADAS).
The new image sensor is capable of approximately three times the horizontal resolution of conventional products, enabling high-definition image capture of distant objects such as road signs of up to 160 meters away. Moreover, the sensor is equipped with a pixel binning mode achieving the high level of low lighting sensitivity of 2666 mV. This capability enables the capture of images such as pedestrians or obstacles, even in dark situations. It is equipped with a unique function that captures dark sections at high-sensitivity settings as well as bright sections at high resolution alternatively, enabling high-precision image recognition when combined with post-signal processing.
Sony is providing another industry-first innovation with the efficient stacked design of the IMX324. The pixel array and signal processing circuit is layered allowing for a compact size and low power consumption while still delivering the industry's highest resolution. It is expected to offer compatibility with the "EyeQ 4" and "EyeQ 5" image processors currently being developed by Mobileye, an Intel Company headquartered in Israel, for use in ADAS and autonomous vehicle technology.
The new sensor also leads the industry with a security feature that protects the output image from being altered in any way, a first for image sensors in the automotive cameras vertical. The industry-leading sensor is on track to meet the AEC-Q100 Grade 2 reliability testing standards for automotive electronic components by June 2018. Sony has also introduced ISO-26262 automotive functional safety compliant development process to ensure that design quality satisfying the functional safety requirements for an ASIL B (D) level automotive product.
Key Features of Sony IMX324 Include:
- 7.42 megapixels — the industry's highest resolution for image sensors for automotive cameras. The new image sensor is capable of approximately three times the horizontal resolution of conventional products which enables high-definition image capture of distant road signs approximately 160 meters ahead of the camera.
- High sensitivity of 2666 mV (Standard value F5.6, when using pixel binning mode): The sensor is equipped with a pixel binning mode for increasing the sensitivity in low-light environments. This mode on the sensor adds data from a total of four pixels and processes it as a single pixel to enhance the sensitivity when reading image data. The pixel binning mode and RCCC filter together achieve the high sensitivity of 2666 mV, making it possible to capture images of distant objects, obstacles and people even in low-light environments down to 0.1 lux, equivalent to moonlight. Also, by switching between pixel binning mode and full pixel mode for each frame it is possible to capture bright sections illuminated by the headlights in high resolution, and dark sections not illuminated by headlights at high sensitivity, thereby enabling high-precision image recognition when combined with post-signal processing.
- Industry's first automotive grade stacked image sensor that delivers both a compact size and low power consumption through implementation of a stacked configuration that arranges the pixel array and signal processing circuits on different layers.
- Meets quality standards and functions required for automotive applications:
- Set to meet the requirements of AEC-Q100 Grade 2 automotive electronic component reliability tests by June 2018
- ISO 26262 automotive functional safety compliant development process, Supports functional safety requirement level ASIL B (D)
- Equipped with an industry-first security feature that protects the output image from being altered
Key Specifications
