Local Luminance Patterns for Point Cloud Quality Assessment

In recent years, there has been an increase in the popularity of Point Clouds (PC) as the preferred data structure for representing 3D visual contents. Examples of PC applications range from 3D representations of small objects up to large maps. The advent of PC adoption triggered the development of new coding, transmission, and presentation methodologies. And, along with these, novel methods for evaluating the visual quality of PC contents. This paper presents a new objective full-reference visual quality metric for PC contents, which uses a proposed descriptor entitled Local Luminance Patterns (LLP). LLP extracts the statistics of the luminance information of reference and test PCs and compares their statistics to assess the perceived quality of the test PC. The proposed PC quality assessment method can be applied to both large and small scale PCs. Using publicly available PC quality datasets, we compared the proposed method with current state-of-the-art PC quality metrics, obtaining competing results.