Image Processing Techniques in Ultrasound Imaging

Code Excitation

Uses pulses and gaps for signal transmission.

Higher SNR

Increased signal-to-noise ratio enhances image quality.

Spatial Compounding

Reduces artifacts and improves spatial resolution.

Frequency Compounding

Combines frequency ranges for better image quality.

Preprocessing

Image processing before storing in memory.

Edge Enhancement

Sharpens image boundaries for better detection.

Pixel Interpolation

Fills missing pixels using adjacent pixel averages.

Persistence

Averages frames to reduce noise and smooth images.

Panoramic Imaging

Extends field of view by combining frames.

3D Imaging

Creates 3D images from multiple 2D scans.

Write Zoom

Improves spatial resolution by rescanning ROI.

Image Memory

Stores image frames for display and retrieval.

Pixels

Smallest unit of a digital image.

Pixel Density

Number of pixels per inch in an image.

Bits

Smallest unit of computer memory.

Byte

Group of 8 bits in computer memory.

Gray Shades

Determined by bits assigned to each pixel.

Binary Numbers

Use digits 0 and 1 for data representation.

Postprocessing

Image processing after echoes are stored.

Read Zoom

Zooms ROI after data collection.

B Color

Assigns colors to improve contrast resolution.

Harmonic Imaging

Improves image quality by reducing artifacts.

Cine Loop

Stores last frames before freezing the image.

Matrix

Arrangement of pixels in rows and columns.

Dynamic Range

Range of brightness levels in an image.

Grating Lobes

Unwanted signals affecting image quality.