Text compression using a 4 bit coding scheme
نویسندگان
چکیده
منابع مشابه
Text Database Compression Using Replacement and Bit Reduction
This is a simple compression algorithm which is based on repetition of words and number system theory as well. It employs a technique in which frequently occurring words are replaced by special characters and the modified file is considered as n-base number system, where n is the number of different characters in the file. Further, compression process is carried out by converting this n-base nu...
متن کاملA New Joint Compression-Watermarking Scheme using Truncation Coding
Block Truncation coding (BTC) is a technique for image compression. To divide the original image into many nonoverlapped blocks, each of which is represented by two distinct values. In traditional BTC, the two values preserve the firstand second-moment characteristics of the original block. Nowadays, most of the multimedia is compressed before it is stored. It is more appropriate to embed infor...
متن کاملSMS transmission using PDU mode and 7-bit coding scheme
This paper describes the design and implementation of an SMS transmission system using the PDU (Protocol Data Unit) mode of a GSM (Global System for Mobile Communications) modem. The system may be used in several applications: telemetry or remote control, using short messages from a standard GSM mobile phone, and in other application circuits. In order to perform these applications, coding and ...
متن کاملBit-Wise Arithmetic Coding for Data Compression
This article examines the problem of compressing a uniformly quantized IID source. We present a new compression technique, bit-wise arithmetic coding, that assigns xed length codewords to the quantizer output and uses arithmetic coding to compress the codewords, treating the codeword bits as independent. We examine the performance of this method and evaluate the overhead required when used bloc...
متن کاملLow bit-rate feature vector compression using transform coding and non-uniform bit allocation
This paper presents a novel method for the low bit-rate compression of a feature vector stream with particular application to distributed speech recognition. The scheme operates by grouping feature vectors into non-overlapping blocks and applying a transformation to give a more compact matrix representation. Both Karhunen-Loeve and discrete cosine transforms are considered. Following transforma...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Computer Journal
سال: 1981
ISSN: 0010-4620,1460-2067
DOI: 10.1093/comjnl/24.4.324