Light-Field Dataset for Disparity Based Depth Estimation

• URL: http://arxiv.org/abs/2511.05866v1
• Date: Sat, 08 Nov 2025 05:39:05 GMT
• Title: Light-Field Dataset for Disparity Based Depth Estimation
• Authors: Suresh Nehra, Aupendu Kar, Jayanta Mukhopadhyay, Prabir Kumar Biswas,
• Abstract summary: A Light Field (LF) camera consists of an additional two-dimensional array of micro-lenses placed between the main lens and sensor.<n>This enables the image sensor to capture both spatial information and the angular resolution of a scene point.<n>The trade-off between angular information and spatial information is very critical and depends on the focal position of the camera.
• Score: 8.101033337356684
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: A Light Field (LF) camera consists of an additional two-dimensional array of micro-lenses placed between the main lens and sensor, compared to a conventional camera. The sensor pixels under each micro-lens receive light from a sub-aperture of the main lens. This enables the image sensor to capture both spatial information and the angular resolution of a scene point. This additional angular information is used to estimate the depth of a 3-D scene. The continuum of virtual viewpoints in light field data enables efficient depth estimation using Epipolar Line Images (EPIs) with robust occlusion handling. However, the trade-off between angular information and spatial information is very critical and depends on the focal position of the camera. To design, develop, implement, and test novel disparity-based light field depth estimation algorithms, the availability of suitable light field image datasets is essential. In this paper, a publicly available light field image dataset is introduced and thoroughly described. We have also demonstrated the effect of focal position on the disparity of a 3-D point as well as the shortcomings of the currently available light field dataset. The proposed dataset contains 285 light field images captured using a Lytro Illum LF camera and 13 synthetic LF images. The proposed dataset also comprises a synthetic dataset with similar disparity characteristics to those of a real light field camera. A real and synthetic stereo light field dataset is also created by using a mechanical gantry system and Blender. The dataset is available at https://github.com/aupendu/light-field-dataset.

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