Face and Straight Line Detection in Equirectangular Images

Panoramic images have been theme of intense research in the last years. A well-known format for panoramic images is the equirectangular one (examples can be seen in the result section). Equirectangular images may be input data for methods that create less distorted panoramic images. The method proposed by Carroll et al. [1] and detailed by Sacht [2] uses the localization of lines and faces to control the distortions of the final projection in these regions. These works present an automatic method to detect faces in the image but the straight lines are marked by the user himself. Our paper presents an extension of the ideas proposed by Carroll et al. [1] to automate the feature selection process.