Patent ID: 11861814
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A method for sensing an image based on an event, comprising:
acquiring at least one of brightness information and color information from an input image signal;
performing conversion including at least one of filtering of at least one of the acquired brightness information and color information, color conversion, and brightness conversion;
calculating a difference for each pixel between a first converted image, converted from the currently input image signal, and a second converted image, converted from a previously input image signal;
quantizing the difference, an absolute value of which is equal to or greater than a predetermined threshold;
filtering the quantized difference; and
generating a bitstream from information about a time at which the image signal is input, information about a location of a pixel, the filtered quantized difference of which is not 0, and binarized information of the quantized difference.