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Lecture Digital signal processing: Lecture 5 - Zheng-Hua Tan
In this chapter you will learn: Frequency response, system functions, relationship between magnitude and phase, all-pass systems, minimum-phase systems, linear systems with generalized linear phase.
18 p vaa 30/05/2018 404 1
Từ khóa: Digital signal processing, Digital signal, Lecture Digital signal processing, Discrete-time signals, System analysis, Frequency response
Lecture Signal processing: Transform analysis of LTI systems - Nguyễn Công Phương
In this chapter include all of the following: Sinusoidal response of LTI systems, response of LTI systems in the frequency domain, distortion of signals passing through LTI systems, ideal and practical filters, frequency response for rational system functions, dependency of frequency response on poles and zeros,...
113 p vaa 30/05/2018 370 1
Từ khóa: Signal processing, Lecture Signal processing, Xử lý tín hiệu, Transform analysis of LTI systems, LTI systems, Frequency domain
Content based video retrieval system using principal object analysis
We propose a content based video retrieval system in some main steps resulting in a good performance. From a main video, we process extracting keyframes and principal objects using Segmentation of Aggregating Superpixels (SAS) algorithm. After that, Speeded Up Robust Features (SURF) are selected from those principal objects. Then, the model “Bag-of-words” in accompanied by SVM classification are applied to obtain the retrieval result. Our...
10 p vaa 30/04/2018 361 1
Từ khóa: Content based video retrieval system, Principal object analysis, Speeded Up Robust Features, Bag-of-words, Surf feature extraction
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