The Measurement of Binocular Disparity

Current stereopsis algorithms rely on the detection of sophisticated landmarks from bandpass version of the monocular images. The process of extracting these landmarks and determining their inter-ocular correspondence is considered to be one of the hard computational tasks in stereopsis. In this paper we propose that symbolic features should not be extracted in the first stages of processing; rather we propose a technique for measuring the local phase difference between the two images. The local phase difference can be used to measure the relative local disparity between the monocular images. A later level of processing must be used to reduce the “false targets” that may be detected.