Samsung introduced the launch of the automotive-grade picture sensor ISOCELL Auto 4AC. It will possibly present 120 decibels excessive dynamic vary pictures (HDR) and helps light-emitting diode (LED) flicker suppression operate. In different phrases, it’s appropriate for high-definition decision (1280×960) vehicle-mounted encompass view picture programs or rear view cameras. This new sensor is Samsung’s first built-in imaging answer for automotive prospects.

CornerPixel Know-how

The ISOCELL Auto 4AC comes with a CornerPixel know-how. The latter has a singular pixel construction. There are two photodiodes in a single pixel space. Amongst them, one 3.0μm pixel is used to acquire pictures underneath darkish mild, and one 1.0μm pixel is positioned within the nook of the massive pixel to acquire pictures of a brighter atmosphere. Two photodiodes purchase pictures underneath totally different publicity circumstances on the identical time. By way of the synthesis course of, the output picture has traits of 120dB HDR. Additionally, it has a minimal impact of movement blur. So the sensor’s publicity transition in complicated brightness environments reminiscent of darkish mild to excessive brightness is smoother. However on the identical time it preserves extra particulars of the street forward.

“Varied lighting conditions on the street might pose obstacles to the motive force. Fast transitions from a low-lit atmosphere to a brighter one, reminiscent of exiting a tunnel, might require a couple of seconds for the motive force’s eyes to regulate. Additionally, flickering from LED headlamps or street signage, reminiscent of road lamps and site visitors lights, might turn into more and more noticeable on the automotive system’s digital camera display.”

Samsung stated that by extending the publicity time of small pixels, the ISOCELL Auto 4AC can scale back picture defects brought on by LED mild supply flicker. This supplies extra correct picture knowledge for the automated driving system. So it will probably acknowledge data reminiscent of LED lights and LED site visitors lights.

ISOCELL Auto 4AC Parameters

The Samsung ISOCELL Auto 4AC has a 1/3.7-inch photosensitive space, a 1.2MP decision (1280×960), a 3.0μm pixel measurement, and a built-in ISP picture processing operate. The latter can output YUV422, RGB888, and RGB565 picture knowledge.

“The brand new ISOCELL Auto 4AC combines Samsung’s progressive and market-proven picture sensor applied sciences with a singular CornerPixel™ answer for superior HDR and LFM capabilities, providing distinctive viewing experiences no matter lighting circumstances,” stated Duckhyun Chang, government vp of sensor enterprise at Samsung Electronics. “Beginning with the ISOCELL Auto 4AC, we plan to increase our automotive sensor lineup to areas reminiscent of digital camera monitor programs (CMS), autonomous driving and in-cabin monitoring.”

The Samsung ISOCELL Auto 4AC has obtained an AEC-Q100 Grade 2 certification. Its working temperature ranges from -40 C to +125 C. It’s at present in mass manufacturing.