Image sensors limit distortion in vision apps

STMicro unveils distortion-limiting image sensors
STMicroelectronics has introduced high-speed image sensors that use “global shutter,” the preferred mode for capturing distortion-free images when the scene is moving or when near-infrared illumination is needed. (STMicroelectronics)

STMicroelectronics has introduced high-speed image sensors that use “global shutter,” the preferred mode for capturing distortion-free images when the scene is moving or when near-infrared illumination is needed.

According to the company, ST’s image-sensor process technologies enable class-leading pixel size while offering both high sensitivity and low crosstalk. The combination allows a smaller sensor pixel array to be located on the top die, while keeping more silicon area on the bottom die to increase digital-processing capabilities and features.

The sensors are designated the VD55G0, having 640 x 600 pixels, and the VD56G3 with 1.5 Mpixels (1124 x 1364). They measure 2.6 x 2.5 mm and 3.6 x 4.3 mm, respectively. The VD55G0 and VD56G3 are the smallest on the market in relation to resolution.

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Low pixel-to-pixel crosstalk at all wavelengths, specifically near-infrared, ensures high contrast for superior image clarity. Embedded optical-flow processing in the VD56G3 calculates movement vectors, without the need for host computer processing. The sensors are suited to a wide range of applications including Augmented and Virtual Reality (AR/VR), Simultaneous Localization and Mapping (SLAM), and 3D scanning.

“These new global shutter image sensors are based on our third generation of advanced pixel technology and deliver significant improvements in performance, size, and system integration,” said Eric Aussedat, Imaging Sub-Group General Manager and Executive Vice President of the Analog, MEMS and Sensors Group, STMicroelectronics, in a statement. “They are enabling another step forward in computer-vision applications, empowering designers to create tomorrow’s smart, autonomous industrial and consumer devices.”

Samples are shipping now to lead customers. 

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