A Sparse Representation Image Denoising Method Based on Orthogonal Matching Pursuit

Image denoising is an important research aspect in the field of digital image processing, and sparse representation theory is also one of the research focuses in recent years. The sparse representation of the image can better extract the nature of the image, and use a way as concise as possible to express the image. In image denoising based on sparse representation, the useful information of the image possess certain structural features, which match the atom structure. However, noise does not possess such property, therefore, sparse representation can effectively separate the useful information from noise to achieve the purpose of denoising. Aiming at image denoising problem of low signal-to-noise ratio (SNR) image, combined with Orthogonal Matching Pursuit and sparse representation theory, this paper puts forward an image denoising method. The experiment shows that compared with the traditional image denoising based on Symlets, image denoising based on Contourlet transform, this method can delete noise in low SNR image and keep the useful information in the original image more efficiently

Why Has Japan’s New Village Survived for 100 Years?

It is widely known that the 1917 October Revolution established the Soviet Union as the world’s first socialist nation: it lasted until its dissolution in 1991. The influence of the revolution extended to China, where an economy of public ownership was established in the 1950s, which has also undergone tremendous changes since 1978 with its opening to the outside world and reforms to the system of public ownership. Today, private enterprise has become the dominant component of China’s industrial landscape and constitutes the primary engine of China’s industrial development. The once ubiquitous rural people’s communes were abolished by the State in 1983. What accounts for the survival of Japan’s New Village (Atarashiki Mura), with its communist characteristics, from its founding 100 years ago to the present day? What has been the source of its vitality? The present study assesses Japan’s New Village and rural Chinese people’s communes against the three key elements necessary for organizations that were proposed in Barnard’s seminal work on organization and management, The Functions of the Executive (1968). The results indicate that the New Village surpasses people’s communes in Barnard’s three areas of communication, willingness to serve, and common purpose