Efficient Stereo Matching With Adaptive Disparity Range Scaling and Feature Calibration

IF 4.3 2区 综合性期刊 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Shengjie Huang;Runbang Zhang;Shuo Liu;Yougang Bian;Yunshui Zhou;Xiaohui Qin
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Abstract

Cascaded cost volume-based stereo matching has gained significant attention for its ability to produce high-resolution depth maps with efficient hardware utilization. However, previous methods often perform uniform offset sampling within a predicted disparity range, which can easily overlook the ground-truth disparity, leading to error propagation and accumulation. Moreover, these methods lack specific designs to tackle spatial feature misalignment, which limits their effectiveness in real-time applications. In this article, we introduce a lightweight cascaded stereo matching framework that features a disparity range scaling (DRS) module and a spatial feature calibration (SFC) module. The DRS module adaptively adjusts the disparity sampling range and constructs a new cost volume that incorporates finer semantic features, ensuring that computational and memory resources are focused on more critical regions. The SFC module performs selective sampling and calibration to extract the most informative and representative features at each position, effectively mitigating spatial feature misalignment. Through rigorous experiments across SceneFlow, KITTI 2012, and KITTI 2015, our model’s effectiveness and efficiency have been confirmed, demonstrating that it outperforms other speed-based algorithms while remaining competitive with state-of-the-art approaches.
具有自适应视差范围缩放和特征校准的高效立体匹配
基于级联成本体的立体匹配以其高效的硬件利用率产生高分辨率深度图的能力而受到广泛关注。然而,以往的方法往往在预测的视差范围内进行均匀的偏移采样,容易忽略地真视差,导致误差的传播和积累。此外,这些方法缺乏解决空间特征错位的具体设计,这限制了它们在实时应用中的有效性。在本文中,我们介绍了一个轻量级级联立体匹配框架,该框架具有视差范围缩放(DRS)模块和空间特征校准(SFC)模块。DRS模块自适应调整视差采样范围,并构建包含更精细语义特征的新成本量,确保计算和内存资源集中在更关键的区域。SFC模块进行选择性采样和校准,在每个位置提取最具信息量和代表性的特征,有效缓解空间特征错位。通过对SceneFlow、KITTI 2012和KITTI 2015的严格实验,我们的模型的有效性和效率已经得到证实,表明它优于其他基于速度的算法,同时与最先进的方法保持竞争。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
IEEE Sensors Journal
IEEE Sensors Journal 工程技术-工程:电子与电气
CiteScore
7.70
自引率
14.00%
发文量
2058
审稿时长
5.2 months
期刊介绍: The fields of interest of the IEEE Sensors Journal are the theory, design , fabrication, manufacturing and applications of devices for sensing and transducing physical, chemical and biological phenomena, with emphasis on the electronics and physics aspect of sensors and integrated sensors-actuators. IEEE Sensors Journal deals with the following: -Sensor Phenomenology, Modelling, and Evaluation -Sensor Materials, Processing, and Fabrication -Chemical and Gas Sensors -Microfluidics and Biosensors -Optical Sensors -Physical Sensors: Temperature, Mechanical, Magnetic, and others -Acoustic and Ultrasonic Sensors -Sensor Packaging -Sensor Networks -Sensor Applications -Sensor Systems: Signals, Processing, and Interfaces -Actuators and Sensor Power Systems -Sensor Signal Processing for high precision and stability (amplification, filtering, linearization, modulation/demodulation) and under harsh conditions (EMC, radiation, humidity, temperature); energy consumption/harvesting -Sensor Data Processing (soft computing with sensor data, e.g., pattern recognition, machine learning, evolutionary computation; sensor data fusion, processing of wave e.g., electromagnetic and acoustic; and non-wave, e.g., chemical, gravity, particle, thermal, radiative and non-radiative sensor data, detection, estimation and classification based on sensor data) -Sensors in Industrial Practice
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