학술논문

Sampling-based robust multi-lateral filter for depth enhancement
Document Type
Conference
Source
2012 Proceedings of the 20th European Signal Processing Conference (EUSIPCO) Signal Processing Conference (EUSIPCO), 2012 Proceedings of the 20th European. :1124-1128 Aug, 2012
Subject
Signal Processing and Analysis
Computing and Processing
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Robustness
Image color analysis
Color
Joints
Image edge detection
Noise
Depth map
range camera
depth estimation
depth upsampling
depth superresolution
Language
ISSN
2219-5491
2076-1465
Abstract
Depth maps are an integral component of 3D video processing. They have a number of uses, including view synthesis for multi-view video, human computer interaction, augmented reality, and 3D scene reconstruction. However, depth maps are often captured at low quality or low resolution due to sensor hardware limitations or estimation errors. In this paper, we propose a new method to enhance noisy or low-resolution depth maps using high-resolution color images. Our method is based on sample selection and refinement in conjunction with multi-lateral filtering, a method derived from joint bilateral filtering using a new weighting metric. Our experimental results verify that the proposed method performs very well in comparison to existing methods.