Chain codes are the most size-efficient representations of rasterised binary shapes and
contours. This paper considers a new lossless chain code compression method based on …

MPEG-4 is the most recent standard for audio-visual representation to be published by the
International Organization for Standardization. One of the many new features of MPEG-4 is …

Shape recognition is an active research topic in the field of computer vision and graphic
computing. Nevertheless, existing methods are still poor in accuracy and efficiency in some …

An apparatus and a method generate a coded block pattern (CBP) of an alpha channel
image. An apparatus and a method encode or decode the alpha channel image using the …

This paper considers a new contour-based representation of binary objects in raster images.
Low processing and storage requirements of the decoder, satisfactory compression ratio …

In this paper, a modified algorithm for object segmentation of binary images is presented,
and denoted as 2D modified chain code algorithm. The 2D modified chain code algorithm …

In this paper, we present a hybrid chain coding based scheme for contours and binary
image compression and reconstruction. The proposed scheme comprises of a lossless and …

After a boom that coincided with the advent of the internet, digital cameras, digital video and
audio storage and playback devices, the research on data compression has rested on its …

This paper addresses the problem of the supervised assessment of hierarchical region-
based image representations. Given the large amount of partitions represented in such …

This paper presents a bi-level image compression method based on chain codes and
entropy coders. However, the proposed method also includes an order estimation process to …