There is great interest in camera-based wearables for monitoring human activity. These devices can be used to monitor activity anywhere and at any time. Much of human activity involves the use of hands and often in conjunction with objects. Certain everyday activities, e.g., taking medication or grabbing keys, can be quite complex. These activities...

Background Monitoring the hands and their immediate environment can provide insight into what we are planning and the activities we are performing. When we want to grasp an object, our hands and body adjust to the shape, texture, and weight of the object. If at the same time, we can capture images of the object to be grasped, then we can use neural...