A novel stereo image compression method based on disparity-compensated residual image structure analysis is presented in this paper. The residual image resulting from the subtraction of the target image by the predict...
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ISBN:
(纸本)9781479936878
A novel stereo image compression method based on disparity-compensated residual image structure analysis is presented in this paper. The residual image resulting from the subtraction of the target image by the predicted one is exploited in this scheme. Unlike natural images, for which 2D-orthogonal transforms such as 2D-DCT provides good energy compaction in the frequency domain, stereo residual images exhibit directional and sparse components making them difficult to compress with classical methods. We propose to exploit the directional properties of the residual image, to compress it more efficiently, by using 1D Directional Discrete Cosine Transform (1D-DDCT). This 1D transform is applied to non-overlapping blocks of the residual image, along four directions: i.e. horizontal, vertical, positive diagonal and negative diagonal. The experimental results show that the proposed method, on some test images, outperforms the considered state-of-the-art methods.
Objective: Set-inversion-based prandial insulin delivery is a new model-based bolus advisor for postprandial glucose control in type 1 diabetes mellitus (T1DM). It automatically coordinates the values of basal-bolus i...
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Many image encryption schemes based on chaotic iterative maps are very expensive in terms of processing speed. This inconvenient feature causes the inapplicability in real-time processes. Hence, encryption scheme must...
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ISBN:
(纸本)9781424433391
Many image encryption schemes based on chaotic iterative maps are very expensive in terms of processing speed. This inconvenient feature causes the inapplicability in real-time processes. Hence, encryption scheme must be projected at low-level. This paper proposes hardware solution of image encryption with keeping the high security of encrypted image and speeding up the encryption process.
A high performance, high sensitivity, CCD line scan camera for use in machine vision systems is presented. The camera incorporates an on-board micro-controller as well as PLD's (programmable logic devices) that al...
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ISBN:
(纸本)0819435848
A high performance, high sensitivity, CCD line scan camera for use in machine vision systems is presented. The camera incorporates an on-board micro-controller as well as PLD's (programmable logic devices) that allow computer control of image acquisition, image processing, and image analysis. The micro-controller/PLD combination provide embedded image processing/analysis capability whereby data compression can be achieved thus reducing the system hardware requirements. Users have control over algorithm parameters thus allowing for dynamic changes in the inspection target. algorithms and micro-controller firmware are completely in-system programmable via a serial communications link. Static and adaptive gray scale thresholding algorithms are presented as well as a sample application where a maximum of twenty cameras can be networked together to a single host computer. Applications for the camera include web inspection, parts inspection, template matching and gauging.
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