The ability to grasp is what turns a robot from a passive observer into something that can act on the world—and how intelligently it grasps hinges, above all, on how well it perceives. For a long time, robotic grasping leaned almost entirely on vision. That works until it doesn't: try looking through something transparent, catching reflections off a polished surface, or making sense of an object that barely has any visible texture, and the limits of a camera become painfully clear. These persistent blind spots have pushed researchers to go beyond vision alone. This paper traces the emerging landscape of tactile-based grasping. It looks at how tactile sensors are being built and refined today, where they are already proving useful, and what breakthroughs—and roadblocks—have surfaced in real applications. With that foundation in place, the discussion then turns to the deeper challenges the field still faces. Finally, this paper peers a little further ahead, toward a new generation of tactile perception systems shaped by hardware–software co-design and by the broader push toward embodied intelligence. The aim is to map out the terrain clearly enough that others working on multimodal robotic grasping can find both orientation and inspiration.
Research Article
Open Access