下载
下载

下载手册、产品技术资料、软件等:

下载类型
型号或关键字

What is run-length coding?

问题:

What is run-length coding?

答案:

a) A type of data compression where a string of identical values is replaced by codes to indicate the value and the number of times it occurs. Thus a string of 70 spaces can be replaced by two bytes. One byte indicates the string consists of spaces and one byte indicates there are 70 of them. Run length coding is not as efficient as DCT for compression of pictures or video, since long sequences of the same values rarely exist in images. Run length coding is part of JPEG, MPEG, H.261, and H.263 compression schemes.

b) A coding scheme that counts the number of similar bits instead of sending them individually. c) Coding of data with different numbers of bits. Frequently reoccurring data has the smallest number of bits; data that seldom reoccur have the highest number of bits.


此常见问题适用于:

产品系列: MPEG 软件 MPEG 分析仪

产品:

常见问题 ID 53441

查看所有常见问题 »