As per the recent study, the study of face images tends to dominate the
research field on Gender classification. However, using face images as the primary
gender classifier is possible only after considering the assumptions such as frontal face
and favorable illumination conditions. Further, more real-time problems such as pose,
background clutter adds up to the complexities towards the approach. Also the results
get affected when there is a change in scale and rotation. Through this dissertation work,
it is sought to tackle the above mentioned problems by eliminating them. These
complexities are addressed by SIFT keypoint vector algorithm which narrows down the
approach for classifying gender. To support this claim, an investigation on a new
approach to classify facial images based on gender was done. Scale Invariant Feature
Transform (SIFT) is one of the most popular local image descriptors in use. The SIFT
vectors extracted from a sample database is examined for any distinctive characteristics.
Stanford University Medical Student (SUMS) frontal facial image database was used for
testing the performance. Both the location and 128-bit descriptor vector of the SIFT
keypoint are individually analyzed for the investigation. All the SIFT keypoints
generated from a small database of male and female face images are analyzed to find
some distinctive keypoint vectors which can differentiate between the two classes face
images. It has been found that the SIFT keypoint vectors are not robust enough for
accurate classification. Hence, dense SIFT concept is used to improve the efficiency
rate.Master of Science (Computer Control and Automation
