Dynamic Vision for Perception and Control of Motion - Ernst D Dickmanns Part 13 pdf

... pattern for detecting vehicles; it usually is the darkest region in the en- vironment. Combining this feature with knowledge of 3 -D geometric models and 4 -D dynamic scene understanding leads to ... (carrying the sensors), feedback of prediction-errors shows the validity of the models used and allows adaptation for improved performance. The dynamic models used in the e...

Ngày tải lên: 10/08/2014, 02:20

... variety of subjects is discussed in Chapter 3. 2.2.5.3 Basic Dynamic Model: Decoupled Newtonian Motion The most simple and yet realistic dynamic model for the motion of a rigid body under external ... ground plane 3 -D models with different degrees of detail: Just for tracking and relative state estimation of cars, taking one of the vertical edges of the lower...

Ngày tải lên: 10/08/2014, 02:20

... led to the classes of feed-forward and feedback control in systems dynamics and control engineering: 1. Feed-forward components U ff derived from a deeper understanding of the proc- ess controlled ... left- and right-hand side as well as translational and rotational dynamics into account. [The full model with all nonlinearities and separately modeled dynamics for the...

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... the next decade should allow tackling this task for better and more robust scene under- standing. 5.1.2 Fields of View, Multi-focal Vision, and Scales In dealing with real-world tasks of surveillance ... sticking to the image plane for shape description of 3 -D bodies in the real world may not be the best procedure; rigid 3 -D bodies and curves yield an in- finite numbe...

Ngày tải lên: 10/08/2014, 02:20

... (corner candidates and edges) are excluded beforehand. Figure 5.34. Image reconstruction for the pa- rameter set (22.22) and vertical search direc- tion, compressed horizontally 2:1 for display ... for re- ducing computer load, on the one hand, and for keeping good candidates for cor- ners, on the other. Larger values for mel and cell parameters should be coupled with s...

Ngày tải lên: 10/08/2014, 02:20

... brightness of a stereo system with corresponding his- tograms of the intensity: (a) left image, (b) right-hand-side image, and (c) right-hand image adapted to the intensity distribution of the left-hand ... the right- (R) and left-hand (L) side are compared. Addition- ally, average intensities and segment lengths of adjacent segments may be checked for judging a feature in th...

Ngày tải lên: 10/08/2014, 02:20

... elementary parts of recursive estimation developed for dynamic vi- sion have been introduced. They avoid the need for storing image sequences by combining 3 -D shape models and 3 -D motion models of objects ... estimation (upper left) and for road perception (lower right) have been coded as separate fourth-order and third-order models with cross-feeds of V·C 0h i...

Ngày tải lên: 10/08/2014, 02:20

... Initialization in Dynamic Scene Understanding perceiving individual simultaneously) because the nature of the mind demands that each component be considered as part of a system of dynamic relationships ... (Figure 5.1 8d) corresponds di- rectly to road curvature with a bit of a lead due to the look-ahead range and feed- forward control. Figure 7.18. Test results in autonom...

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... 1. In addition, this avoids the need for se- lecting one out of three solutions of the third-order equation). Beyond a certain combination of look-ahead distance and negative (downward) vertical ... Model Including Pitch Angle and Width Changes The dependence of look-ahead range L on pitch angle ș K (Equation 9.20) and the dependence of both curvature and lane (or roa...

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... discussed in de- tail here. 10.2.2.1 Attention-controlled Search for Crossroads Detection In phase 1, additional windows for detection of the crossroad are positioned to that side of the road to ... spine of this road; how- ever, the vehicle turns underneath the camera. Here, only the basic considerations for gaze control have been discussed. Feed- forward control for pi...

Ngày tải lên: 10/08/2014, 02:20