spectrum of the DPCM quantization error Power spectral density of the quantization error q measured for intraframe DPCM with a 16 level quantizer π −π 0 0 ωx ωy π −π Bernd Girod: EE398B: Image Communication II DPCM no. 4 Signal distortions due to intraframe DPCM coding Granular noise: random noise in flat areas of the picture Edge busyness: jittery appearance of edges (for video) Slope overload: blur of high-contrast edges‚ Moire patterns in periodic structures. Bernd
Premium Signal processing Coding theory Digital signal processing
sent to stockholders by Olympic Foods‚ a processor of frozen foods: "Over time‚ the costs of processing go down because as organizations learn how to do things better‚ they become more efficient. in color film processing‚ for example‚ the costs of a 3-by-5-inch print fell from 50 cents for five-day service in 1970 to 20 cents for one-day service in 1984. The same principle applies to the processing of food. And since Olympic Foods will soon celebrate its 25th birthday‚ we can expect that our
Premium Logic Food Food preservation
A Central Processing Unit (CPU) is a chip‚ containing a microprocessor‚ at the heart of most every modern computing electronic. A microprocessor is a small integrated circuit or chip‚ comprised of silicon and transistors‚ which interprets electrical impulses‚ performs operations on the electrical impulses‚ and sends the impulses to another device. The transistors are simple switches that turn on and off‚ allowing the electrical impulses through when on or open ’. Microprocessors are very small
Premium Integrated circuit Microprocessor Central processing unit
without any noise. This microphone doesn’t accept any sound other than sound of knocking. From microphone we get a current signal that is proportional to the energy of the sound wave received by the microphone. Then this signal is send to the signal amplifier. This circuit amplifies the weak signal from microphone so it can be used in processing. Then the amplified signal is send
Premium Pattern recognition Pattern Digital signal processing
APPLICATION OF DSP (DIGITAL SIGNAL PROCESSING) IN MEDICINE: Digital signal processing (DSP) is concerned with the representation of the signals by a sequence of numbers or symbols and the processing of these signals. APPLICATION IN MEDICINE: DSP in medical imaging such as MRI (MAGNETIC RESONANCE IMAGING). DSP used in medicine all over the world. Examples are drawn from a number of areas of medicine and health care‚ and include neurophysiology and obstetrics. Digital Signal Processing (DSP) techniques have
Premium Health care Medicine Medical imaging
(analog-to-digital converter) The hardware that converts an analog audio or video signal into a digital signal that you can process with a computer. Aliasing - Noise that occurs when a high frequency sound exceeds the Nyquist Frequency for a given sample rate. Most analog-to-digital converters prevent aliasing by filtering out sounds above the Nyquist Frequency. Amplitude - Amplitude represents the volume of an audio signal. A waveform’s amplitude is measured by its distance from the center line‚ which
Premium Digital audio Sound Digital signal processing
Biology is one of my favorite subjects. With my knowledge and experience in electronics‚ I would like to incorporate the theories of electronics into the fields of biology and can contribute to the research in Bio-Engineering with an emphasis on Signal Processing. To be one of the candidates for the post of Graduate Assistant I possess the necessary skills which include lab‚ subjective‚ communication and management skills. * Lab skills: Having great passion towards practical work. I have enough
Premium Electrical engineering Electronic engineering Digital signal processing
produce a close approximation of the original signal. The wavelet transform of a signal decomposes the original signal into wavelets coefficients at different scales and positions. These coefficients represent the signal in the wavelet domain and all data operations can be performed using just the corresponding wavelet coefficients. The major issues concerning the design of this Wavelet based speech coder are choosing optimal wavelets for speech signals‚ decomposition level in the DWT‚ thresholding
Premium Data compression Digital signal processing
Electromagnetics • Communication/ Signal Processing • Digital • Controls • Solid State The AM Radio & The Telephone System The AM Radio • Understanding the AM radio requires knowledge of several EE subdisciplines: – Communications/signal processing (frequency domain analysis) – Electromagnetics (antennas‚ high-frequency circuits) – Power (batteries‚ power supplies) – Solid state (miniaturization‚ low-power electronics) The AM Radio “System” Transmitter Receiver Signal • The radio system can be
Premium Telephone Digital signal processing
ALGORITHMS FOR AUDIO WATERMARKING AND STEGANOGRAPHY NEDELJKO C VE JIC Department of Electrical and Information Engineering‚ Information Processing Laboratory‚ University of Oulu OULU 2004 NEDELJKO CVEJIC ALGORITHMS FOR AUDIO WATERMARKING AND STEGANOGRAPHY Academic Dissertation to be presented with the assent of the Faculty of Technology‚ University of Oulu‚ for public discussion in Kuusamonsali (Auditorium YB210)‚ Linnanmaa‚ on June 29th‚ 2004‚ at 12 noon. O U L U N Y L I O P
Premium Digital photography Digital signal processing Information theory