Frame rate up-conversion apparatus and operation method thereof
a frame rate up-conversion and apparatus technology, applied in the field of display apparatuses, can solve the problem that the conventional frc apparatus cannot accurately determine the boundary, and achieve the effect of preventing the noise of the black rim
Active Publication Date: 2020-04-02
NOVATEK MICROELECTRONICS CORP
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[0009]To sum up, in the FRC apparatus and the operation method thereof provided by the embodiments of the invention, the first original data of the first pixel in the first original frame and the second original data of the second pixel in the second original frame can be fetched according to the MV. According to the first boundary distance from the first pixel to the boundary of the image in the first original frame and the second boundary distance from the second pixel to the boundary of the image in the second original frame, the boundary processing circuit can process the first original data and the second original data to generate the first processed data of the first pixel and the second processed data of the second pixel. The interpolation frame generating circuit can generate the pixel data of the current pixel of the interpolation frame according to the first processed data and the second processed data. Thus, the FRC apparatus can generate the interpolation frame and prevent the noise of the black rims from being infiltrated into the image of the interpolation frame.
Problems solved by technology
For the gradient black rim, a conventional FRC apparatus cannot accurately determine a boundary of the black rim, such that noise of the black rims may be infiltrated into the image of the interpolation frame Fint.
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[0017]The term “couple (or connect)” herein (including the claims) are used broadly and encompass direct and indirect connection or coupling means. For example, if the disclosure describes a first apparatus being coupled (or connected) to a second apparatus, then it should be interpreted that the first apparatus can be directly connected to the second apparatus, or the first apparatus can be indirectly connected to the second apparatus through other devices or by a certain coupling means. Moreover, elements / components / steps with same reference numerals represent same or similar parts in the drawings and embodiments. Elements / components / notations with the same reference numerals in different embodiments may be referenced to the related description.
[0018]FIG. 2 is a schematic circuit block diagram of a frame rate up-conversion (FRC) apparatus 200 according to an embodiment of the invention. The FRC apparatus 200 includes a motion vector (MV) generation circuit 210, a data fetch circui...
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A frame rate up-conversion (FRC) apparatus and an operation method thereof are provided. A motion vector (MV) generation circuit provides an MV of a current pixel of an interpolation frame. According to the MV, a data fetch circuit fetches first original data of a first pixel in a first original frame and second original data of a second pixel in a second original frame. According to a position of the first pixel in the first original frame and a position of the second pixel in the second original frame, a boundary processing circuit processes the first original data and the second original data to generate first processed data and second processed data. An interpolation frame generating circuit generates pixel data of the current pixel of the interpolation frame according to the first processed data and the second processed data.
Description
BACKGROUNDField of the Invention[0001]The invention relates to a display apparatus and more particularly to a frame rate up-conversion (FRC) apparatus and an operating method thereof.Description of Related Art[0002]A frame rate up-conversion (FRC) operation can increase a display frequency of an image, for example, from 30 frames / second to 60 frames / second. In the FRC operation, an interpolation frame (or more interpolation frames) may be interpolated between a first original frame and a second original frame. In the FRC operation, a motion estimation (ME) operation is performed. Generally, an image frame may be divided into a plurality of blocks. The ME operation is a process for searching a motion vector (MV) of a block. The MV may indicate a motion direction and a motion distance of a certain block. In the FRC operation, the ME operation is performed to calculate an MV between the first original frame and the second original frame. Generally, a 3-dimension recursive search (3DRS)...
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IPC IPC(8): H04N19/513H04N19/176H04N19/182
CPCH04N19/182H04N19/176H04N19/513H04N7/0127H04N7/014H04N19/55H04N19/577H04N19/587
InventorHUANG, YI-HUNGCHANG, HSIAO-ENLIAO, JIA-LIN
OwnerNOVATEK MICROELECTRONICS CORP