Video encoding device and video decoding device
A video encoding and video decoding technology, applied in the fields of video encoding equipment and video decoding equipment, can solve problems such as removing block distortion, and achieve the effect of reducing contour and staircase artifacts
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no. 1 example
[0075] figure 1 is a block diagram showing the first embodiment of the present invention, which shows a video encoding apparatus in which pseudorandom noise is injected into a reconstructed image picture before block distortion removal, and is injected into the reconstructed image picture after block distortion removal To construct an image image apply a Wiener filter.
[0076] Such as figure 1As shown in , the video encoding device according to this embodiment except MB buffer 101, frequency transformation unit 102, quantization unit 103, entropy encoder 104, inverse quantization unit 105, inverse frequency transformation unit 106, picture buffer 107, deblocking Besides filter unit 108 , decoded picture buffer 109 , intra prediction unit 110 , inter prediction unit 111 , encoder control unit 112 and switch 100 , noise injector 113 and Wiener filter unit 114 are also included.
[0077] According to the video encoding device of this embodiment and Figure 21 The difference ...
no. 2 example
[0116] image 3 is a block diagram showing a second embodiment according to the present invention, which shows a video encoding apparatus in which pseudorandom noise is injected into a reconstructed image picture from which block distortion is removed and a Wiener filter is applied.
[0117] Such as image 3 As shown in , the video encoding device according to this embodiment except MB buffer 101, frequency transformation unit 102, quantization unit 103, entropy encoder 104, inverse quantization unit 105, inverse frequency transformation unit 106, picture buffer 107, deblocking Besides filter unit 108 , decoded picture buffer 109 , intra prediction unit 110 , inter prediction unit 111 , encoder control unit 112 and switch 100 , noise injector 113 and Wiener filter unit 114 are also included.
[0118] The video encoding device according to the present embodiment differs from the video encoding device according to the first embodiment in that the reconstructed image picture fro...
no. 3 example
[0143] Figure 4 is a block diagram showing a third embodiment according to the present invention, which shows a video decoding apparatus in which pseudorandom noise is injected into a reconstructed image picture from which block distortion is removed and a Wiener filter is applied. The video decoding device according to the present embodiment corresponds to the video encoding device according to the first embodiment.
[0144] Such as Figure 4 As shown in , in addition to the entropy decoder 201, the inverse quantization unit 202, the inverse frequency transformation unit 203, the picture buffer 204, the deblocking filter unit 205, the decoded picture buffer 206, and the intra prediction unit, the video decoding device according to this embodiment 207 . In addition to the inter prediction unit 208 , the decoder control unit 209 and the switch 200 , a noise injector 210 and a Wiener filter 211 are also included.
[0145] The entropy decoder 201 entropy-decodes the bitstream ...
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