Perceptual evaluation of statistical image models

Semantic-Based Image Retrial in the VQ Compressed Domain using Image Annotation Statistical Models

Perceptual Evaluation of Vibrato Models

We promote a clearer definition of vibrato (Seashore, 1932), based on a review of various vibrato features. We also propose a generalised vibrato effect generator that includes spectral envelope modulation, and a frequency-dependent hysteresis behaviour. We then investigate the influence of spectral envelope modulation on perceived quality with a double-blind randomized AB comparison task. Eigh...

Image authentication using LBP-based perceptual image hashing

Feature extraction is a main step in all perceptual image hashing schemes in which robust features will led to better results in perceptual robustness. Simplicity, discriminative power, computational efficiency and robustness to illumination changes are counted as distinguished properties of Local Binary Pattern features. In this paper, we investigate the use of local binary patterns for percep...

Perceptual evaluation of different image fusion schemes

Human perceptual performance was tested with images of nighttime outdoor scenes. The scenes were registered both with a dual band (visual and near infrared) image intensified low-light CCD camera (DII) and with a thermal middle wavelength band (3-5 Pm) infrared (IR) camera. Fused imagery was produced through a pyramid image merging scheme, in combination with different colour mappings. For all ...

Perceptual Criteria for Image Quality Evaluation