Motion vector prediction method, system and computer medium based on quadratic polynomial
A technology of motion vector prediction and quadratic polynomial, which is applied in the field of video coding and decoding, can solve the problems of motion prediction accuracy and low coding efficiency, and achieve the effect of improving motion prediction accuracy and coding efficiency
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Embodiment 1
[0052] figure 1 is a schematic diagram of steps of a motion vector prediction method based on a quadratic polynomial according to an embodiment of the present application.
[0053] Such as figure 1 As shown, the motion vector prediction method based on the quadratic polynomial in the embodiment of the present application specifically includes the following steps:
[0054] S101: Through block-based motion estimation, sequentially determine a current motion block, a first forward matching block, and a second forward matching block in time order.
[0055] figure 2 and image 3 is a schematic diagram of the position of the coding block in the motion vector prediction method based on the quadratic polynomial according to the embodiment of the present application.
[0056] Currently, inter-frame prediction mainly uses block-based motion estimation to search for matching blocks. The matching block may be in the previous I or P frame, or in the image frame that appears later.
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Embodiment 2
[0093] This embodiment provides a motion vector prediction system based on a quadratic polynomial. For details not disclosed in the motion vector prediction system based on a quadratic polynomial in this embodiment, please refer to the motion vector prediction system based on a quadratic polynomial in other embodiments. The specific implementation content of the vector prediction method.
[0094] Figure 4 A schematic structural diagram of a motion vector prediction system based on a quadratic polynomial according to an embodiment of the present application is shown in .
[0095] Such as Figure 4 As shown, the motion vector prediction system based on the quadratic polynomial in the embodiment of the present application specifically includes a motion estimation unit 10, a quadratic polynomial motion model unit 20, a prediction reference block unit 30, a motion vector prediction unit 40, and a video codec unit 50 .
[0096] The motion estimation unit 10 is configured to sequ...
Embodiment 3
[0134] This embodiment provides a motion vector prediction device based on a quadratic polynomial. For details not disclosed in the motion vector prediction device based on a quadratic polynomial in this embodiment, please refer to the motion vector prediction device based on a quadratic polynomial in other embodiments. The specific implementation content of the vector prediction method or system.
[0135] Figure 5 A schematic structural diagram of a motion vector prediction device 400 based on a quadratic polynomial according to an embodiment of the present application is shown in .
[0136] Such as Figure 5 As shown, the motion vector prediction device 400 includes:
[0137] Memory 402: for storing executable instructions; and
[0138] Processor 401: used to connect with memory 402 to execute executable instructions so as to complete the motion vector prediction method.
[0139] Those skilled in the art can understand that the Figure 5 It is only an example of the mo...
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