High-precision bicycle detection on single side-view image based on the geometric relationship

Automated class identification of modes of travel in shared spaces: a case study from India

“…Bicycle detection and classification face similar challenges and accordingly, a blend of methods based on shape detection and wheels recognition has been proposed in [7,8,[25][26][27]. For example, Somasundaram et al [27] examined the performance of different types of texture-based and motion features for the discrimination between bicycles and pedestrians.…”

Motorsuz araçları tespiti için CNN tabanlı GUI geliştirilmesi

“…Tao et al (2021) experimented with different methods for detecting other vehicles in traffic with the camera positioned on the vehicle in order to provide autonomous driving [3]. Lin and Young (2017) proposed a bicycle detector for sideview image based on the observation that a bicycle consists of two wheels in the form of ellipse shapes and a frame in the form of two triangles [4]. Some researchers [5,6] have tried to detect bicycles on the road with only wheel detection.…”

Robotic perception and grasp in unstructured environments

“…Specifically, edge arcs that may consist of an ellipse are found by variety of techniques such as the statistical regression method [10], curve segmentation by fitting a set of short line segments on edges [11], connectivity and curvature conditions [12,13]. Subsequently, these arcs are grouped according to the convexity-concavity [9,11,[14][15][16], arc curvature [15], and geometric constraints [17][18][19][20].…”

“…, (3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17) where , and , denotes the th parameters in the vectors and . If ( , ) is less than a threshold ,the ellipses and are concluded to belong to the same ellipse cluster.…”

“…Substituting these two equations into (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) and (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19), we can obtain the following equations: where denotes the contact tangent force generated by the active tendon tension force and expresses the resisting force for keeping the current state.…”