IEEE Trans Image Process - Depth sensation enhancement using the just noticeable depth difference.

Tópicos

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Resumo

In this paper, we present a novel depth sensation enhancement algorithm considering the behavior of human visual system (HVS) toward stereoscopic image displays. On the basis of the recent studies on the just noticeable depth difference (JNDD), which represents a threshold that a human can perceive the depth difference between objects, we modify the depth image such that neighboring objects in the depth image can have a depth value difference of at least the JNDD. This modification is modeled via an energy minimization framework using three energy terms defined as depth data preservation, depth-order preservation, and depth difference expansion. The depth data term enforces minimal changes in the depth image with an additional weighting function that controls the direction of depth changes. The depth-order term restricts the inversion of the local and global depth orders among objects, and the JNDD term leads to an increase in the depth differences between segments. Throughout subjective quality evaluation on a stereoscopic image display, it is demonstrated that the human depth sensation is effectively improved by the proposed algorithm.

Resumo Limpo

paper present novel depth sensat enhanc algorithm consid behavior human visual system hvs toward stereoscop imag display basi recent studi just notic depth differ jndd repres threshold human can perceiv depth differ object modifi depth imag neighbor object depth imag can depth valu differ least jndd modif model via energi minim framework use three energi term defin depth data preserv depthord preserv depth differ expans depth data term enforc minim chang depth imag addit weight function control direct depth chang depthord term restrict invers local global depth order among object jndd term lead increas depth differ segment throughout subject qualiti evalu stereoscop imag display demonstr human depth sensat effect improv propos algorithm

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