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8*8变换和量化的代码一共没有几行，用了两个周的时间才搞定。这效率啊……这期间，量化的算法不太懂，看参考代码用了些 时间，最严重的是，一天之内只明白一个问题，这个问题呢，是手头的某份看过几遍的资料中说明的，就是一直没有注意这个问题，忙乱中，查资料的思路也变得不清晰了。这份资料应该是很容易想到的。看资料要有个思路：标准（只有解码部分）；jvt提案文档，中间推导过程比较清晰；The H.264 Adv... 阅读全文
posted @ 2010-11-23 22:19
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一直想找几篇tw的硕士论文来看，但是不好找。 今天在google scholar search里敲入了H.264 transform quantization一共出来三篇，其中两篇是一个导师指导的。点连接进去，是中兴大学的资料库，只能校内的IP才能下得到。 然后网上找下载tw博硕论文的方法，当然是proxy。http://http://www.soudoc.com/bbs/index.php有些放... 阅读全文
posted @ 2010-11-23 22:04
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1、matlab移位函数：BITSHIFT Bit-wise shift.C = BITSHIFT(A,K) returns the value of A shifted by K bits. A must be an unsigned integer or an array of unsigned integers. Shifting by K is the same as multiplic... 阅读全文
posted @ 2010-11-23 21:13
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Short-Circuit Operators The following operators perform AND and OR operations on logical expressions containing scalar values. They are short-circuit operators in that they evaluate their second ope... 阅读全文
posted @ 2010-11-23 21:05
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Bit-Wise Functions The following functions perform bit-wise logical operations on nonnegative integer inputs. Inputs may be scalar or in arrays. If in arrays, these functions produce a like-sized outp... 阅读全文
posted @ 2010-11-23 21:01
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Logical Operators MATLAB offers three types of logical operators and functions: Element-wise -- operate on corresponding elements of logical arrays. Bit-wise -- operate on corresponding bits of int... 阅读全文
posted @ 2010-11-23 20:57
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Logical Operators MATLAB offers three types of logical operators and functions: Element-wise -- operate on corresponding elements of logical arrays. Bit-wise -- operate on corresponding bits of intege... 阅读全文
posted @ 2010-11-23 20:54
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