A Modified Model of the Just Noticeable Depth Difference and its Application to Depth Image Enhancement
Journal
IEEE T IMAGE PROCESS
Date
2013.10.01
Abstract
The just noticeable depth difference (JNDD) describes a threshold of the human depth perception in the depth difference. In flat-panel-based three-dimensional displays, the JNDD is typically measured by changing the depth difference between displayed image objects until the difference is perceivable. However, not only the depth but also the perceived size changes when the depth difference is increased. In this paper, we present a modified JNDD measurement method that adjusts the physical size of the object such that the perceived size of the object remains. We then apply the proposed JNDD model to the depth sensation enhancement. When the depth values between the objects are increased to enable the perception of the depth difference, the size of the objects is adjusted to maintain the perceived size of the objects. In addition, since the size change of the objects can produce a hole region, a depth adaptive hole inpainting technique is proposed to compensate for the hole region with high accuracy. The experimental results demonstrate the effectiveness of the proposed method.