The buildings with variable scales and complex background information in remote sensing images often result in missed and misclassified segmentation of buildings. To address this issue, this paper designs an multipath...
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The spectrogram is defined as the visual representation of the signal strength with a particular interval of time regarding frequencies in the appropriate waveform. It is demonstrated using the Fourier transform. It i...
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The field of imageprocessing widely utilizes scene text segmentation technology, with applications extending to image editing and font style transfer. These applications enhance image understanding quality and aid in...
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Blood cancer is known as hematologic cancer, and leukemia is a type of blood cancer that infects the body's white blood cells and bone marrow, leading to a painful death. This paper introduces an automatic techniq...
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Dehazing is an essential preprocessing step for improving the quality of satellite imagery. Hazy conditions can significantly impact the visibility and clarity of satellite images, making it difficult to extract usefu...
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We revisit the widely used bss_eval metrics for source separation with an eye out for performance. We propose a fast algorithm fixing shortcomings of publicly available implementations. First, we show that the metrics...
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ISBN:
(纸本)9781665405409
We revisit the widely used bss_eval metrics for source separation with an eye out for performance. We propose a fast algorithm fixing shortcomings of publicly available implementations. First, we show that the metrics are fully specified by the squared cosine of just two angles between estimate and reference subspaces. Second, large linear systems are involved. However, they are structured, and we apply a fast iterative method based on conjugate gradient descent. The complexity of this step is thus reduced by a factor quadratic in the distortion filter size used in bss_eval, usually 512. In experiments, we assess speed and numerical accuracy. Not only is the loss of accuracy due to the approximate solver acceptable for most applications, but the speed-up is up to two orders of magnitude in some, not so extreme, cases. We confirm that our implementation can train neural networks, and find that longer distortion filters may be beneficial.
Person re-identification (re-id) has been widely used in various applications, such as security surveillance, the retail sector, and the military. Although companies that manufacture security surveillance equipment, s...
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The discrete cosine transform (DCT) has been identified as a potential basis for compressed sensing (CS) due to its spectral compaction property. In real-time biomedical applications, a discrete-time analog architectu...
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In order to solve the problems of “digital signalprocessing”, such as many common knowledge points, difficult teaching, difficult visual teaching, and so on, a software platform for “signalprocessing” open teach...
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ISBN:
(数字)9798350360240
ISBN:
(纸本)9798350384161
In order to solve the problems of “digital signalprocessing”, such as many common knowledge points, difficult teaching, difficult visual teaching, and so on, a software platform for “signalprocessing” open teaching is built based on Visual C++6.0. This system is to cooperate with the teaching content of CIM, but also to improve the practical ability of students, so that they can more easily and quickly understand some of the more complex digital signal theory. The timing of the beam position signal is optimized based on the existing down sampling method, and the digital AGC and slow application signalprocessing modules are completed. We need to get turn-by-turn, quick application, and track closing data simultaneously. The experiment shows that the system can obtain the multi-frequency position information including the actual running state well. The advantages of this system are easy to control parameters, easy to use, and strong expansibility. This project plans to further improve the system in the future research work so as to achieve better teaching and practical application purposes.
The large amount of data collected by LiDAR sensors brings the issue of LiDAR point cloud compression (PCC). Previous works on LiDAR PCC have used range image representations and followed the predictive coding paradig...
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