Kim, SH Kim, HG 2024-01-21T16:42:13Z 2024-01-21T16:42:13Z 2021-09-03 1998-09 0916-8532 https://pubs.kist.re.kr/handle/201004/142897 This paper proposes an object oriented face region detection and tracking method using range color information. Range segmentation of the objects are obtained from the complicated background using disparity histogram (DH). The facial regions among the range segmented objects are detected using skin-color transform technique that provides a facial region enhanced gray-level image. Computationally efficient matching pixel count (MPC) disparity measure is introduced to enhance the matching accuracy by removing the effect of the unexpected noise in the boundary region. Redundancy operations inherent in the area-based matching operation are removed to enhance the processing speed. For the skin-color transformation, the generalized facial color distribution (GFCD) is modeled by 2D Gaussian function in a normalized color space. Disparity difference histogram (DDH) concept from two consecutive frames is introduced to estimate the range information effectively. Detailed geometrical analysis provides exact variation of range information of moving object. The experimental results show that the proposed algorithm works well in various environments, at a rate of frame per second with 512 x 480 resolution in general purpose workstation. English IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG RECOGNITION STEREO Facial region detection using range color information Article 1 IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, v.E81D, no.9, pp.968 - 975 IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS E81D 9 968 975 scie scopus 000076129300004 2-s2.0-0032155539 Computer Science, Information Systems Computer Science, Software Engineering Computer Science Article RECOGNITION STEREO face detection matching pixel count skin-color transform disparity histogram range segmentation