Advances in Image and Graphics Technologies: Chinese by Tieniu Tan, Qiuqi Ruan, Shengjin Wang, Huimin Ma, Kaiqi

By Tieniu Tan, Qiuqi Ruan, Shengjin Wang, Huimin Ma, Kaiqi Huang

This publication constitutes the referred complaints of the eighth China convention on photograph and photographs applied sciences and functions, IGTA 2014, held in Beijing, China, in June 2014. The 39 papers offered have been rigorously reviewed and chosen from a hundred and ten submissions. They hide quite a few features of study in picture processing and snap shots and comparable themes, together with item detection, development acceptance, item monitoring, type, photograph segmentation, reconstruction, etc.

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Additional info for Advances in Image and Graphics Technologies: Chinese Conference, IGTA 2014, Beijing, China, June 19-20, 2014. Proceedings

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Three images of them are showed in figure 3(a), 3(b) and 3(c). Every image in the data set has different focus region as the small oval indicates. The fused image generated by the proposed method is shown in figure 3(d). It can be seen that those out-of-focus regions in three images are all in-focus in figure 3(d). Fig. 3. Three images of the first data set and fused result For comparison, the fusion results generated by average fusion, wavelet fusion and pyramid fusion are shown in figure 4. Fig.

1) (2) ( (4) (3) (5) Fiig. 4. Five 4K pictures for experiment Experimental Results. • Tile size Test condition: ─ Overlapfilter=1, Trimfleexbits=0, these two parameters will be explained laterr in this chapter. ─ TileSize=128x128, 512x x512 and 3840x2160. The rate-distortion result in n terms of PSNR on the Y component is shown in the following graph. Comparative Study of Near-Lossless Compression 33 Fig. 5. Rate-distorrtion performance using PSNR for parameter TileSize We can see from Fig. 3db, whereas there shows almost no differeence between 512x512 and 3840 0x2160.

Flexbits is sent uncoded. For lossless 8 bit compression, Flexbits may account for more than 50% of the total bits. Flexbits forms an enhancement layer which may be omitted or truncated, where the parameter is called “TrimFlexBits”. 32 D. Wang Fig. 3. 2 JPEG XR Evaluation Experiments are performed d to evaluate the influence of the main parameters on ccoding efficiency. Input. Five pictures (YUV444, 8bit per channel) extracted from five 4K video sequennces is used for input in this evalluation shown in Fig.

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