by Unknown |  at 11:39
Sony introduces SNR1s [lx] as an index used to quantitatively evaluate picture quality at low illumination. SNR1s [lx] is a proprietary index advocated by Sony, and is limited to CMOS image sensors for security camera applications. A smaller value indicates better picture quality at low illumination. SNR1s [lx] is an acronym consisting of "SNR" (Signal-to-Noise Ratio), "1" (represents that the signal level when noise = 1 is 1), and "s" (for Security).
SNR1s measurement:
Two 3200 [K] light sources illuminate an 18% gray chart from different directions, and dimming is performed to 100 [lx]. A camera is placed so that the distance from the gray chart to the imaging surface of the image sensor is 1 m, the sensitivity [e-] and dark noise [e-] are measured, and SNR1s [lx] is calculated using the relational equation (1). The luminance when equation (1) equals 1 is SNR1s [lx].
SNR1s Values of Sony CMOS Sensors for Security Applications:
by Unknown |  at 11:50
PRNewswire, BusinessWire: Toshiba announces the newest addition to its TMPV760 family of image recognition processors for automotive applications. The TMPV7602XBG is suitable for monocular cameras used in ADAS, and will help designers implement ADAS applications utilizing a cost-optimized camera system with a small form factor.
Featuring 13 hardware-based image recognition accelerators, the TMPV7602XBG incorporates ADAS features that will become part of the camera requirements for the European New Car Assessment Program (Euro NCAP) in 2018. These include Autonomous Emergency Braking (AEB), Traffic Signal Recognition (TSR), Lane Departure Warning (LDW) / Lane Keeping Assist (LKA), High Beam Assistance (HBA), and Forward Collision Warning (FCW). In addition, the processor supports such new applications as Traffic Light Recognition (TLR) and night-time pedestrian detection.
ADAS applications are processed concurrently within a typical time window of 50ms inside the image recognition processor and with relatively low power consumption due to the purpose-built hardware accelerators and media processing units. The TMPV7602XBG can process up to five applications concurrently, with very low power consumption, and targets mid- to high-end ADAS designs. Optimizing the circuit to downsize the ADAS monocular camera module enables the device's reduced package size (17mm x 17mm BGA with 521 pins and 0.65mm ball pitch) and an anticipated 50-percent reduction in power consumption.
Samples of the TMPV7602XBG image recognition processor will begin shipping in March. Mass production is scheduled for January 2018.
by Unknown |  at 11:09
BusinessWire: According to the latest report by Technavio, the CMOS sensors market is highly fragmented due to the presence of a large number of vendors. Sony is the market leader here followed by Samsung Electronics, OmniVision, Canon, and ON Semiconductor.
Sony
Sony is the market leader with a 27% market share. �The reason behind Sony's success is its strategy of purchasing many factories in order to boost CMOS sensor production to meet the demand for sensors incorporated in the global smartphone market. Their plan was to welcome any smartphone manufacturer to use its CMOS image sensor,� says Sunil Singh, a lead analyst at Technavio for computing devices.
Samsung Electronics
Samsung Electronics is the second major vendor in this market with a market share of 19%.
OmniVision
Omnivision is the third major vendor in this market with 17% market share. OmniVision is mostly driving benefit from the increasing adoption of smartphones in China and India.
Canon
Canon is the fourth major vendor in the CMOS sensors market with a 7% market share. Its strengths are that it always looks for innovation and invests a lot in production to cut costs. Its only weakness is the major competition from its rivals like Nikon, which forces it to invest more in advertisements, and which again indirectly leads to increasing the price of its products.
ON Semiconductor (Aptina)
ON Semiconductor is the fifth major vendor in this market with a market share of 6%. In August 2014, ON Semi acquired Aptina Imaging. In 2012, Aptina had almost an 8% market share in CMOS image sensors, which now belongs to ON Semi.