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D. from the video decoder. city. (DC) Intra coefficient decoding device and method
D. from the video decoder. city. (DC) Intra coefficient decoding device and method
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机译：D.来自视频解码器。市。 （DC）帧内系数解码装置和方法
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摘要
The present invention discloses a device for decoding a DC (hereinafter referred to as DC) intra coefficient decoding in a moving picture encoder. The apparatus inputs inverting means for inverting the most significant bit of the first signal representing the difference value of the DC intra coefficient encoded by the DPCM method, and generates a sign bit, and inputs a second signal representing the number of valid bits of the difference value to receive the first signal. A right-hand line means for moving to the right and filling the remaining bits with code bits, a signal generating means for inputting code bits to generate a third signal, and a reset for determining a reset value of the DC coefficient in response to the first control signal Means, storing means for storing a previous DC value or storing a determined reset value, postal order means, drawing-out means for storing, adding and subtracting means for adding and subtracting a third signal to output a DC value, and second control De-quantization by determining the reset means in response to the signal, selecting means for selecting and outputting the outputs of the adding and subtracting means, and outputting them to the storage means; And a bit shifting means for supplying to the second signal, and the method adds a second bit complementary to the first bit if the most significant bit of the difference signal representing the difference value of the encoded DC intra coefficients is the first bit. A second addition step of obtaining a final DC value by adding a previous DC value to the result of the first addition step; and adding a previous DC value to the difference signal if the most significant bit is the second bit. And a third addition step of obtaining a final DC value, taking the most significant bit from the input coefficient value, and easily comparing the input coefficient value with the half value through inversion of the most significant bit, and adding and subtracting to one adder. Since all the acid functions can be used, the circuit implementation can be simplified.
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