Extracting Local Binary Patterns with MIPA4k vision processor

Abstract

In this paper we show how the MIPA4k vision processor can be used to extract and process local image features called Local Binary Patterns (LBPs). Using these low level image features more advanced higher level processing can be performed. LBP histograms can be extracted with wide field of potential applications. Also, directional thresholding results, which are part of LBP extraction process, can be used for higher level processing such as face localization. The MIPA4k vision processor consists of an array of 64 × 64 mixed-mode processing units with on-chip image capture sensors.