公开(公告)号：US11503247B1

公开(公告)日：2022-11-15

申请号：US17567910

申请日：2022-01-04

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih Chang ,  I-Feng Lin ,  Hsiao-En Chang

IPC: H04N7/01 ,  G06T7/254

Abstract: A method of motion estimation and motion compensation for a video processor includes steps of: detecting an input frame rate of a series of input frames; calculating a frame counting value, wherein the frame counting value represents the number of output frame periods between a current input frame and a previous input frame among the series of input frames; calculating a phase step, which is configured to generate a phase coefficient for generating an interpolated frame as an output frame of each of the output frame periods, according to the frame counting value; and generating the interpolated frame based on the current input frame and the previous input frame by using the phase coefficient. Wherein, the step of calculating the frame counting value, the step of calculating the phase step and the step of generating the interpolated frame are consistently performed until the input frame rate is successfully detected.

公开(公告)号：US11871146B1

公开(公告)日：2024-01-09

申请号：US17889368

申请日：2022-08-16

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih Chang ,  I-Feng Lin ,  Hsiao-En Chang

IPC: G06F5/00 ,  H04N7/01

CPC classification number: H04N7/0135

Abstract: A video processor is configured to perform the following steps: receiving a series of input frames; calculating a buffer stage value according to the series of input frames, wherein the buffer stage value corresponds to a status of the input frames stored in a frame buffer of the video processor; and selecting a frame set from the input frames stored in the frame buffer for generating an interpolated frame as an output frame to be output by the video processor according to the buffer stage value.

公开(公告)号：US11032511B1

公开(公告)日：2021-06-08

申请号：US15930417

申请日：2020-05-12

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shuting Ge ,  I-Feng Lin ,  Haibo Liu ,  Xiaohui Li

IPC: H04N7/01

Abstract: A frame interpolation method for a video processor includes the steps of: determining whether a first input frame is received following a long-term cadence; generating interpolated frames by applying phase coefficients in a regular phase table corresponding to the long-term cadence when the first input frame is received following the long-term cadence; and generating interpolated frames by applying phase coefficients in a bad edit phase table corresponding to a bad edit cadence when the first input frame is received without following the long-term cadence.