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MSTGAR: Multioperator-Based Stereoscopic Thumbnail Generation With Arbitrary Resolution

At present, thumbnail generation for 2D images has been extensively studied, but the research in thumbnail generation for stereoscopic images is still relatively lacking. This paper presents a novel thumbnail generation technology for stereoscopic images based on multioperator with the following innovations: 1) The warping technique is used to retarget a stereopair into six-scale resolutions with different contexts, and the disparity is uniformly adjusted to a certain value based on just noticeable depth difference (JNDD) model, which overcomes the issues that 3D perception in stereoscopic thumbnail is uncontrollable and the sense of depth disappears in low-resolution stereoscopic images. 2) The six-scale images are cropped via cropping network, and are optimized to a target resolution based on the designed image visual representation energy. As a result, our method has better visual effect than state-of-the-art methods in generating thumbnail for stereoscopic display.