The histogram equalization (HE) is a widely used contrast enhancement method. But what is missing fromthe HE is a mechanism to control the rate of enhancement. The enhanced image always follows the uniform distribution. This paper presents a simple enhancement rate control mechanism for the HE. The gradient of the mapping function is controlled hy putting contraints on the probability density f...

Multisensory enhancement (MSE) is the augmentation of the response to sensory stimulation of one modality by stimulation of a different modality. It has been described for multisensory neurons in the deep superior colliculus (DSC) of mammals, which function to detect, and direct orienting movements toward, the sources of stimulation (targets). MSE would seem to improve the ability of DSC neuron...

We incorporate fading and reset mechanisms in an enhanced fine granularity scalability algorithm to reduce the drifting error at low bit rate while still maintaining 1.5dB PSNR gain at high bit rate over the current MPEG-4 fine granularity scalability. Many of previous works use enhancement layers to predict enhancement layers so as to increase the compression efficiency. Drifting error occurs ...