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         "id"   : "https://puma.ub.uni-stuttgart.de/bibtex/2aff6f09c8d42df4861ce6c90540d2ba8/thomasrichter",         
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            "JPEG","Optimal","Quantization","Quantization,","Rate-Distortion","XR!!,"
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         "interHash" : "95c1969b1a1b6bdc1d7a31ca7c6eecc1",
         "label" : "Deadzone Based Rate Allocation for JPEG XR",
         "user" : "thomasrichter",
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         "date" : "2016-03-10 09:18:49",
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         "booktitle": "Data Compression Conference (DCC), 2011","publisher":"IEEE","address":"Snowbird, UT",
         "year": "2011", 
         "url": "http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5749531", 
         
         "author": [ 
            "Thomas Richter"
         ],
         "authors": [
         	
            	{"first" : "Thomas",	"last" : "Richter"}
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         "pages": "474","abstract": "Similar to the JPEG image compression standard, the JPEG XR image\ncompression solely controls the image quality loss and hence the output rate\nby means of the quantizer bucket sizes; a precise rate control mechanism\nlike the EBCOT rate allocation algorithm in JPEG 2000 is not specified, and\nhence rate-distortion optimality of the quantizer is, in general, not given.\n\nIn this work, a simple rate-control mechanism for JPEG XR is introduced that\nallows an efficient control of the quantizer towards rate-distortion\noptimality. One possibility to implement this quantizer control would be to\nuse the spatial variable quantization feature of JPEG XR, but it was seen in\nan earlier work that the additional side information required to transmit\nthe quantization setting almost compensates the PSNR gain of variable\nquantization and complicates the rate allocation process by requiring an\nadditional quantizer allocation step.\n\nHowever, while JPEG XR defines the image reconstruction process completely,\nan encoder still has the freedom to select the deadzone size of the\nquantizer; this mechanism has the additional advantage that no additional\nside information needs to be transmitted and that the deadzone size is not,\nunlike the quantizer bucket size, constrained to a set of pre-defined\nvalues specified in the standard.\n\nIt is found that the image quality of JPEG XR can be improved by about 0.2\nto 0.4 dB by performing a rate-distortion optimal selection of the deadzone;\nthis gain is seen to be comparable to the PSNR loss of a JPEG 2000 codec\nwhere, for experimental reasons, EBCOT rate control has been turned off.",
         "isbn" : "978-1-61284-279-0",
         
         "doi" : "10.1109/DCC.2011.78",
         
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         "label" : "Deadzone Based Rate Allocation for JPEG XR",
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         "date" : "2016-03-03 17:45:04",
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         "booktitle": "Data Compression Conference (DCC), 2011","publisher":"IEEE","address":"Snowbird, UT",
         "year": "2011", 
         "url": "http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=5749531", 
         
         "author": [ 
            "Thomas Richter"
         ],
         "authors": [
         	
            	{"first" : "Thomas",	"last" : "Richter"}
         ],
         "pages": "474","abstract": "Similar to the JPEG image compression standard, the JPEG XR image\r\ncompression solely controls the image quality loss and hence the output rate\r\nby means of the quantizer bucket sizes; a precise rate control mechanism\r\nlike the EBCOT rate allocation algorithm in JPEG 2000 is not specified, and\r\nhence rate-distortion optimality of the quantizer is, in general, not given.\r\n\r\nIn this work, a simple rate-control mechanism for JPEG XR is introduced that\r\nallows an efficient control of the quantizer towards rate-distortion\r\noptimality. One possibility to implement this quantizer control would be to\r\nuse the spatial variable quantization feature of JPEG XR, but it was seen in\r\nan earlier work that the additional side information required to transmit\r\nthe quantization setting almost compensates the PSNR gain of variable\r\nquantization and complicates the rate allocation process by requiring an\r\nadditional quantizer allocation step.\r\n\r\nHowever, while JPEG XR defines the image reconstruction process completely,\r\nan encoder still has the freedom to select the deadzone size of the\r\nquantizer; this mechanism has the additional advantage that no additional\r\nside information needs to be transmitted and that the deadzone size is not,\r\nunlike the quantizer bucket size, constrained to a set of pre-defined\r\nvalues specified in the standard.\r\n\r\nIt is found that the image quality of JPEG XR can be improved by about 0.2\r\nto 0.4 dB by performing a rate-distortion optimal selection of the deadzone;\r\nthis gain is seen to be comparable to the PSNR loss of a JPEG 2000 codec\r\nwhere, for experimental reasons, EBCOT rate control has been turned off.",
         "isbn" : "978-1-61284-279-0",
         
         "doi" : "10.1109/DCC.2011.78",
         
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