An Eye-movement Controlled Wavelet Packet Based Image Coder
نویسنده
چکیده
Abstract. An image coding scheme which combines transform coding with a human visual system (HVS) model has been developed. The system includes an eye tracker to pick up the point of regard of a single viewer. One can then utilize that the acuity of the HVS is lower in the peripheral vision than in the central part of the visual field. A model of the decreasing acuity of the HVS which can be applied to a wide class of transform coders is described. Such a coding system has large potential for data compression. In this paper we have incorporated the model into an image coder based on the discrete wavelet packet transform (DWPT) scheme. An image coding scheme which combines transform coding with a human visual system (HVS) model has been developed. The system includes an eye tracker to pick up the point of regard of a single viewer. One can then utilize that the acuity of the HVS is lower in the peripheral vision than in the central part of the visual field. A model of the decreasing acuity of the HVS which can be applied to a wide class of transform coders is described. Such a coding system has large potential for data compression. In this paper we have incorporated the model into an image coder based on the discrete wavelet packet transform (DWPT) scheme.
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