1. Enacted with a time-of-flight depth camera, a depth-sensing method comprising: irradiating a subject with pulsed light of spatially alternating bright and dark features; receiving the pulsed light reflected back from the subject onto an array of pixels; at each pixel of the array, presenting a signal dependent on distance from the depth camera to a locus of the subject imaged onto that pixel; and mapping the subject based on the signal from pixels that image subject loci directly irradiated by the bright features, while omitting or weighting negatively the signal from pixels that image subject loci under the dark features.