Since depth/disparity fields of the best photometric matches to the query differ due to differences in underlying image content, level of noise, distortions, etc., we combine them by using the median and post-process the result using cross-bilateral filtering. In the case of NYU dataset, however, depth fields are provided since all images have been captured by a Kinect camera indoors. If the 3D images are provided in the form of stereopairs, this necessitates disparity/depth estimation. In our approach, we first find a number of on-line 3D images that are close photometric matches to the 2D query and then we extract depth information from these 3D images. The key assumption is that two 3D images (e.g., stereopairs) whose left images are photometrically similar are likely to have similar depth fields. The key observation is that among millions of 3D images available on-line, there likely exist many whose 3D content matches that of the 2D input (query). Our novel approach is built upon a key observation and an assumption.

Instead of relying on a deterministic scene model for the input 2D image, we propose to “learn” the model from a large dictionary of 3D images, such as YouTube 3D or the NYU Kinect dataset. Summary: In this project, we explore a radically different approach inspired by our work on saliency detection in images. In practice, such methods have not achieved the same level of quality as the semi-automatic methods. Although such methods may work well in some cases, in general it is very difficult, if not impossible, to construct a deterministic scene model that covers all possible background and foreground combinations. Fully-automatic methods, typically make strong assumptions about the 3D scene, for example faster or larger objects are assumed to be closer to the viewer, higher frequency of texture belongs to objects located further away from the viewer, etc. Konrad entitled “Automatic 2D-to-3D image conversion using 3D examples from the Internet” at SPIE Stereoscopic Displays and Applications Symposium, January 2012, San Francisco:īackground: Among 2D-to-3D image conversion methods, those involving human operators have been most successful but also time-consuming and costly.

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