Analysis of Speckle Diminution in Ultrasound Images-A Review

Ultrasound is used imaging modality for the diagnosis and diseases. In past decades, the advances in technology have become crucial imaging modality, due to its suppleness and non-invasive. Ultrasound image uses high-frequency sound waves to contrasting reflection signals created when a light emission is anticipated into the body the convenience of ultrasound image is corrupted by the noise identified as dot (speckle). The speckle model depends on the image tissue and different image parameters. The noise shows in ultrasound picture influences edges and subtle elements contain the differentiation and determination. The reasons for speckle noise reduction in ultrasound image (i) The ultrasound images are improved for human interpretation (ii) The speckle noise reduction is the preprocessing step for segmentation and registration in ultrasound image processing tasks. The objective of paper is to give different techniques have been used to decrease speckle noise in ultrasound image.