This paper presents an estimation algorithm for the six degree-of-freedom camera pose obtained from a single RGB image in a specific environment using a combination of the known image and point cloud information. Specifically， we

The X-ray images of Integrated Circuits （IC） generally have high noise and low contrast characteristics. Considering the different needs in detail preservation and noise removal of edge details and smooth regions， this paper propo

This paper proposes a Video Quality Assessment （VQA） method based on video-content perception by analyzing the influence of video content， transmission delay， and encoding and decoding distortion characteristics on the VQA， combin

To correct the color distortion and enhance the details of degraded underwater image， this paper proposes a coarse-to-fine underwater image enhancement method based on multi-level wavelet transform. Firstly， a raw underwater image

Star pattern matching is critical when using high-precision astronomical positioning technique， which， in turn， is required for the precise determination of space objects’ orbits. This paper proposes a rapid star-pattern-matching

The shape analysis and shape transformation of the laser-scanning point cloud model depend on the curve skeleton. We proposed a fast and automatic method to obtain the curve skeleton of laser-scanning point cloud to transform the

The highest class in the Chinese national standard Gear Involute Artifact GB/T 6467-2010 is class-1， of which the tolerance of profile form deviation for class-1 gear involute artifact is around 1.0 to 2.1 μm， however， the measure

The resonance state and output characteristics of high-frequency magnetostrictive transducers are affected by various factors such as electromagnetic excitation conditions， heat generation and load conditions. In order to improve

For robotic assembly long cylindrical shaft and countersunk-hole parts， this paper investigates the assembly strategies of combining 3D vision， and force perception for compliantly assembling parts in arbitrary positions and poses

To realize the high-precision distortion analysis and measurement of an off-axis optical system and fast and high-precision distortion correction of on-orbit images， a high-order distortion analysis method is used to fit and analy

The Earth’s atmospheric conditions are closely related to climate change and affect human health and ecological environments. Therefore， atmospheric monitoring is of considerable importance. The polarization sensitivity of atmosph

Dispersion accumulation is a problem experienced in space division multiplexing communication systems that use multi-core fibers. To solve this problem， use of a 19-core photonic crystal fiber （PCF） with low loss dispersion compen