Target detection networks based on deep learning has some problems in the field of lane line recognition， such as unclear lane differences， low recognition accuracy， a high false detection rate， and a high missed detection rate. T

To address the low recognition accuracy resulting from multiple scale changes in the traffic signs of complex scenes， an improved YOLOv4 algorithm is proposed. First， an attention-driven scale-aware feature extraction module is de

An SENet-based method for image semantics description of generative adversarial networks is proposed to address the inaccurate description of utterances and inadequate involvement of emotional colors in image semantics description

There are small geometric positioning errors between panchromatic data and multispectral data when optical satellites， which have high attitude measurement accuracy， high attitude stability， and detectors using mechanical staggere

Hyperspectral sparse unmixing methods have attracted considerable attention， and most current sparse unmixing methods are implemented in the spatial domain； however， the hyperspectral data used by these methods complicate feature

To realize efficient ultra-precision polishing of concave spherical optical glass with small curvature， a hemispherical head polishing device based on magnetic compound fluid （MCF） with a high apparent viscosity and stable distrib

Regarding the wide application of geomagnetic field measurement in magnetic prospecting， navigation， and positioning， the measurement range of the single-cell self-oscillating optically pumped magnetometer （OPM） is limited by the

This paper proposes a control strategy to address the issue of crystal parallelism errors that affect the performance of the new multi-channel double-crystal monochromator （DCM） system. The control strategy integrates iterative le

In the high-power laser facility， control of the surface deformation of the large-aperture KDP crystal is the key factor to reduce the frequency-conversion efficiency. To improve the assembling quality of the KDP crystal， a point-

The full-field heterodyne dynamic interferometer has the advantages of a high measurement accuracy and strong anti-interference ability for surface shape measurement. It is suitable for large-focal length surface shape measurement

To improve the photoemission performance of the current InGaAs photocathode and explore a new activation recipe， two activation experiments of Cs/NF3 and Cs/O were utilized to study the effects of different activation recipes on t

An off-axis three-mirror collimating optical system is designed to test the infrared equipment in a vacuum 100-K cryogenic environment. The system adopts athermal design， and the whole structure adopts SiC material. A C-shaped ope

The geometry of frequency-modulated continuous-wave lidar deviates from that of the design model owing to the mechanical machining and assembly of the lidar. In this study， the effect of the sub-coordinate system offset and roll o

Bionic flapping-wing robots have become a global research hotspot because of their considerable potential in military and civilian applications. Measuring and analyzing the flapping deformation characteristics of flapping-wing rob