Learn More
—Active contour method is widely used in the image processing field. Recently, it has been used in object segmentation and has attracted great attention. However, most of the existing object segmentation methods based on active contours are complex and time-consuming. They cannot be used in some real-time applications. Hence, in this paper, a fast and(More)
Traditional EBCOT algorithm encodes an image with the same block-based coding strategy and it is difficult to acquire perceptually consistent results. This paper presents an improved object-based embedded coding algorithm to enhance the flexibility and coding efficiency of the original EBCOT algorithm. The original image is segmented into objects and each(More)
An improved frame-level bit-allocation and rate-control algorithm is proposed aiming at overcoming the drawbacks of TM5 rate-control algorithm such as poor rate-control precision, high computational complexity and so on. The frame-level target bit-allocation method is improved and a new rate-distortion model is incorporated to implement rate-prediction.(More)
  • 1