Method and apparatus of picture display
AssigneeMediatek Inc.
InventorsChi-Cheng Ju, Tzu-Ping Lin
Life of this patent
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Abstract
A method and an apparatus of picture display. The invention displays the first picture and the second picture and displaying at least one virtual picture in between the first and the second picture. The motion compensator is included in a DVD player. The method includes: decoding the first and the second pictures from the received bit-stream; creating the virtual picture parameter according to the transition effect; and generating the virtual picture according to the virtual picture parameter by the motion compensator.
Claims21
A video decoding system having a first mode of decoding an encoded video data stream and generating decoded video data to a memory, and having a second mode of generating a virtual picture between a first picture and a second picture to the memory, the video decoding system comprising a Variable Length Decoder (VLD) module, an Inverse Quantization (IQ) module, an Inverse Discrete Cosine Transformer (IDCT) module, a Motion Compensator (MC) module, a Block Reconstruction (BR) module, and a parameter generating module,
- wherein in the first mode,
- the VLD module receives the encoded video data stream, performs variable length decoding on the encoded video data stream, and generates first parameters and second parameters;
- the IQ and IDCT modules receive the second parameters, perform inverse quantization and inverse discrete cosine transformation on the second parameters, and generate third parameters;
- the MC module receives the first parameters, performs motion compensation, and generates fourth parameters;
- the BR module combines the third parameters and the fourth parameters, and generates the decoded video data to the memory,
- wherein in the second mode, the parameter generating module generates a virtual picture parameter to the MC module so as to make the BR module generate the virtual picture between the first picture and the second picture to the memory, wherein the virtual picture parameter is not generated by decoding the encoded video data stream.
A video decoding system having a first mode of decoding an encoded video data stream and generating decoded video data to a memory, and having a second mode of generating a virtual picture corresponding to a first picture to the memory, the video decoding system comprising a Variable Length Decoder (VLD) module, an Inverse Quantization (IQ) module, an Inverse Discrete Cosine Transformer (IDCT) module, a Motion Compensator (MC) module, a Block Reconstruction (BR) module, and a parameter generating module,
- wherein in the first mode,
- the VLD module receives the encoded video data stream, performs variable length decoding on the encoded video data stream, and generates first parameters and second parameters;
- the IQ and IDCT modules receive the second parameters, perform inverse quantization and inverse discrete cosine transformation on the second parameters, and generate third parameters;
- the MC module receives the first parameters, performing motion compensation, and generates fourth parameters;
- the BR module combines the third parameters and the fourth parameters, and generates the decoded video data to the memory,
- wherein in the second mode, the parameter generating module generates a virtual picture parameter to the MC module so as to make the BR module generate the virtual picture to the memory, wherein the virtual picture parameter is not generated by decoding the encoded video data stream.
A method to generate at least one virtual picture corresponding to a first picture so as to achieve a desired transition effect of the first picture in a video decoding system capable of performing a decoding operation on an encoded video data stream, wherein the video decoding system comprises a Motion Compensator (MC) module for performing motion compensation during the decoding operation, the method comprising the steps of:
- generating a virtual picture parameter to the MC module so as to make the MC module generate the virtual picture, wherein the virtual picture parameter is generated according to the first picture and the desired transition effect, and is not generated by decoding the encoded video data stream.
A method to generate at least one virtual picture between a first picture and a second picture so as to achieve a desired transition effect between the first picture and the second picture in a video decoding system, the video decoding system capable of decoding an encoded video data stream and performing a bi-directionally predictive decoding so as to generate a bi-directionally predictive decoded picture, the method comprising:
- generating a virtual picture parameter, wherein the virtual picture parameter is generated according to the first picture and the desired transition effect, and is not generated by decoding the encoded video data stream;
- and
- performing the bi-directionally predictive decoding on the first picture and the second picture according to the virtual picture parameter so as to generate the virtual picture.
Dependencies are inferred from the claim text.