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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...
This paper presents an implementation of locally adaptive image sensing with the MIPA4k image processor array. The implemented adaptive sensor circuitry allows the extraction of image detail in the presence of large dynamic intra-scene lighting variations. The implemented circuit method is based on the use of nonlinear resistive network filtering during image integration for controlling the pixel...
In this paper we propose a self-adapting image sensing scheme that compresses a wide dynamic range scene so that important visual characteristics are preserved throughout the perceived dynamic range. The exposure times of sensors are made adaptive to local illumination conditions while signal is being integrated. Resistive filtering with locally adaptive resistance values is performed to extract the...
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