Improved coding for avoiding motion artefacts

A method for reducing motion artifacts in moving image sequences displayed on a digitally driven active-matrix display, comprising a plurality of display pixels that are organized in rows and columns, is disclosed. The method comprises representing the dots of an image to be displayed within a field by an n-bit digital image code. The field is divided into sub-fields and each sub-field is further divided into a first and second time interval which respectively comprise a first and a second number of equally long time slots. A number of time slots is assigned to each bit of the n-bit digital image code according to each bit's significance. Successive time slots of the first time interval are assigned to one of the bits of the image code and successive time slots of the second time interval are assigned to a different one of the bits of the image code. Within the duration of at least one sub-field, each rows is selected twice for respectively writing a first bit of the image code during the first time interval and writing a second bit of the image code during the second time interval. There is a predetermined time delay between moments of first and second selection. At least the most significant bit of the digital image code is written during time intervals which are substantially regularly distributed over the sub-fields comprised in one field.

Patent Publication Number: EP3671707

Year filing: 2020

Year approval: 2021

Year publication: 2020

Status: Requested

Technology domains: Audio-visual technology

Validated for IOF-key: Yes

Attributed to: Associatie KULeuven