发明授权
US08189446B2 Optical record carrier as well as an apparatus and method for reading/writing image data from/at a visually detectable pattern at an optical record carrier 失效
光学记录载体以及用于在光学记录载体上从视觉检测图案读取/写入图像数据的装置和方法

Optical record carrier as well as an apparatus and method for reading/writing image data from/at a visually detectable pattern at an optical record carrier
摘要:
A method is disclosed of reading an image data from an optical record carrier with a visually detectable pattern comprising a visually detectable pattern of pixels comprising at least one pattern element comprising an area of size s1 with a relatively low value v1 for an optical property and an area with size s2 with a relatively high value v2 for said optical property, wherein the data representative for a structure of the visually detectable pattern is embedded by variations in one or more of the parameters s1, v1, s2, v2 of the pattern elements. The method comprising the steps of scanning the visually detectable pattern and generating a detection signal representative for a visual property of the pattern as a function of position, retrieving the image data from the signal, retrieving an embedded data from the signal, generating an address data using said embedded data, storing image data values at addresses indicated by said address data.
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