KR940025336A - Movie Frame Rate Converter - Google Patents

Abstract

The present invention relates to an apparatus for converting a movie frame rate, comprising: (t-1) frames and odd frames using an odd frame and a motion vector to convert a 24 frame / second movie frame to a 60 frame / second TV frame rate. Frame 2 is created by multiplying the motion by 0.2 to make frame (t-1), frame 2 is made by compensating on frame (t-1) by multiplying the motion vector between (t-1) and odd frames by 0.6, Frame 3 uses the odd frame as it is. Frame 4 is made by multiplying the motion vector between odd and even frames by 0.4, and frame 5 is made by multiplying the motion vector by 0.8. Three odd frames of 24 frames / second movie frame are made of the same frame, and even frames are made the same. Frame (12X3 + 12X24 = 60) A 60 frame / second TV frame was created to achieve natural video movement when chlorides were placed on the TV.

Description

Movie Frame Rate Converter

Since this is an open matter, no full text was included.

5 is a circuit diagram for explaining the movie frame rate conversion of the present invention. 6 is a schematic diagram for explaining the principle of frame rate conversion according to FIG. 7 is a signal waveform diagram of FIG. 8 is a schematic diagram of a frame and an input frame recorded in the memory of FIG. 9 is a schematic diagram for explaining a motion vector. 10A to 10E are explanatory diagrams of an address of an address generator and an address after motion compensation. 11 is a schematic view showing a phase change according to an embodiment of the present invention (A)-(E).

Claims (5)

A timing generator 10 that receives a control signal from the main system of the TV and outputs different digital signals to each circuit, receives a motion vector and an input frame, and switches according to the signal of the timing generator 10. A motion compensator for outputting a motion vector obtained by multiplying 0.2,0.4, 0.6, and 0.8 by odd and even frames, and delaying the motion vector obtained by multiplying 0.6 and 0.4 by one frame. 18, an address generator 22 for converting and outputting odd and even frames outputted with motion compensation from the motion compensator 18 into TV frames according to signals output from the control signal and timing generator 10; The memory unit 25, which stores and outputs odd and even frames output from the address generator 22 according to the output signal of the timing generator 10, delays a movie input frame. Movie frame rate conversion, characterized in that consisting of a switch (SW1) for switching the frame signal output from the two frame delay unit 26, the two frame delay unit 26 in accordance with the signal of the timing generator 10 Device. The apparatus of claim 1, wherein the switching unit (11) comprises two logical AND circuits (IC1, IC2). The apparatus of claim 1, wherein the motion compensator (18) comprises a multiplier (12, 13, 15, 16) and a one-frame delay (14, 17). 4. An apparatus according to claim 3, wherein the address generator (22) comprises first and second address generators (19, 21) multipliers (20) and logical AND circuits (IC3-IC7). 2. The apparatus of claim 1, wherein the memory unit comprises first and second memories (23, 24). ※ Note: The disclosure is based on the initial application.