Mobile chip maker Qualcomm wants your gadgets to look out for you. The company is working on a technology that packages together a lens, an image sensor, and a low-power processor that runs computer-vision algorithms. The module, which Qualcomm calls Glance, would be cheaper than a camera and use far less energy, but it could detect humans, determine if they are taking certain actions (such as jumping or walking toward or away from the sensor), and even identify certain hand or arm gestures. Every computing company is trying to add some form of computer vision to its products, whether for self-driving cars or automated shipping facilities. Though Glance is still taking shape in Qualcomm's R&D division, it gives the company an opportunity to leverage its expertise in low-power computing and jump into this fast-growing market.