Efficient method for DCT-domain image arbitrary downsampling
A novel approach to resize Images with m/n resizing ratio in the DCT domain,was proposed which expoits the relationship of DCT coefficients between m 2input blocks and n 2output blocks.Experimental results confirm that the scheme performs about 0.5dB better than Park’s method in terms of PNSR of rec...
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Journal on Communications
2007-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74657744/ |
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| _version_ | 1841537470875828224 |
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| author | DU Yao-gang1 CAI An-ni2 |
| author_facet | DU Yao-gang1 CAI An-ni2 |
| author_sort | DU Yao-gang1 |
| collection | DOAJ |
| description | A novel approach to resize Images with m/n resizing ratio in the DCT domain,was proposed which expoits the relationship of DCT coefficients between m 2input blocks and n 2output blocks.Experimental results confirm that the scheme performs about 0.5dB better than Park’s method in terms of PNSR of reconstructed image with a comparable computational speed.The proposed method can be used to any DCT-based compressed video transcoding applications. |
| format | Article |
| id | doaj-art-8e08aac518c2424ea7437552218dd0f1 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2007-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-8e08aac518c2424ea7437552218dd0f12025-01-14T08:35:26ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2007-01-0112312874657744Efficient method for DCT-domain image arbitrary downsamplingDU Yao-gang1CAI An-ni2A novel approach to resize Images with m/n resizing ratio in the DCT domain,was proposed which expoits the relationship of DCT coefficients between m 2input blocks and n 2output blocks.Experimental results confirm that the scheme performs about 0.5dB better than Park’s method in terms of PNSR of reconstructed image with a comparable computational speed.The proposed method can be used to any DCT-based compressed video transcoding applications.http://www.joconline.com.cn/zh/article/74657744/DCT domainarbitrary down-samplingpeak signal to noise ratiotranscoding |
| spellingShingle | DU Yao-gang1 CAI An-ni2 Efficient method for DCT-domain image arbitrary downsampling Tongxin xuebao DCT domain arbitrary down-sampling peak signal to noise ratio transcoding |
| title | Efficient method for DCT-domain image arbitrary downsampling |
| title_full | Efficient method for DCT-domain image arbitrary downsampling |
| title_fullStr | Efficient method for DCT-domain image arbitrary downsampling |
| title_full_unstemmed | Efficient method for DCT-domain image arbitrary downsampling |
| title_short | Efficient method for DCT-domain image arbitrary downsampling |
| title_sort | efficient method for dct domain image arbitrary downsampling |
| topic | DCT domain arbitrary down-sampling peak signal to noise ratio transcoding |
| url | http://www.joconline.com.cn/zh/article/74657744/ |
| work_keys_str_mv | AT duyaogang1 efficientmethodfordctdomainimagearbitrarydownsampling AT caianni2 efficientmethodfordctdomainimagearbitrarydownsampling |