TH100314B - DCT shadow compression with adaptive data group size based on contrast-sensitive variance. - Google Patents

Abstract

Gave a lecture on the system and method of shadow recording Which uses data groups and groups An adaptive scaled subscript of the discrete cosine transform coefficient data. The element of data group size configuration in the encoder selects the data group or data group. Sub-group of data at the input of the image point to be processed. Selection will take the variance of the values. Of the picture Data groups with greater variance are subdivided while data groups with smaller variance begin to shift are not subdivided. Converting the pixel value of the selected data group to the frequency domain. Subsequently, the value in the domain Of the frequency may be obtained quantized Continually And encode variable length type in Preparation for signaling

Claims (1)

1. Method for determining the data group size configuration for the data group. The input of the image point of the silhouette that will be used to record the input group. It consists of various steps of reading a group of image data. Genesis Determination of the size of data groups based on the variance of the values of The picture point of a group of such point data. And a subset of the data groups of Such spot data and The provision of information that contains the structure of the data on a configuration.