Wearable cameras allow users to record their daily activities from a user-centered (First Person Vision) perspective. Due to their favourable location, they frequently capture the hands of the user, and may thus represent a promising user-machine interaction tool for different applications. Existent First Person Vision, methods understand the hands as a background/foreground segmentation problem that ignores two important issues: (i) Each pixel is sequentially classified creating a long processing queue, (ii) Hands are not a single “skin-like” moving element but a pair of interacting entities (left-right hand). This paper proposes a GPU-accelerated implementation of a left right-hand segmentation algorithm. The GPU implementation exploits the nature of the pixel-by-pixel classification strategy. The left-right identification is carried out by following a competitive likelihood test based the position and the angle of the segmented pixels.
GPU accelerated left/right hand-segmentation in first person vision
BETANCOURT, ALEJANDRO ARANGO;MARCENARO, LUCIO;REGAZZONI, CARLO
2016-01-01
Abstract
Wearable cameras allow users to record their daily activities from a user-centered (First Person Vision) perspective. Due to their favourable location, they frequently capture the hands of the user, and may thus represent a promising user-machine interaction tool for different applications. Existent First Person Vision, methods understand the hands as a background/foreground segmentation problem that ignores two important issues: (i) Each pixel is sequentially classified creating a long processing queue, (ii) Hands are not a single “skin-like” moving element but a pair of interacting entities (left-right hand). This paper proposes a GPU-accelerated implementation of a left right-hand segmentation algorithm. The GPU implementation exploits the nature of the pixel-by-pixel classification strategy. The left-right identification is carried out by following a competitive likelihood test based the position and the angle of the segmented pixels.File | Dimensione | Formato | |
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Betancourt2016_Chapter_GPUAcceleratedLeftRightHand-Se.pdf
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