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Sensor

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Sohu Tech Products
Sohu Tech Products
May 31, 2023 · Mobile Development

Analysis of an Android Step Counter Manipulation App Using the Xposed Framework

This article provides a detailed technical analysis of an Android step‑counter simulator app that leverages the Xposed framework to hook system sensor APIs, modify step data, and achieve user‑defined step targets, while also explaining relevant sensor fundamentals and required permissions.

AndroidHookingMobile Security
0 likes · 7 min read
Analysis of an Android Step Counter Manipulation App Using the Xposed Framework
Sohu Tech Products
Sohu Tech Products
Dec 15, 2021 · Mobile Development

Implementing a Naked‑Eye 3D Effect on Android with OpenGL

This article explains how to create a naked‑eye 3D visual effect in an Android app by splitting an image into three layers, using OpenGL for GPU‑accelerated rendering, registering device sensors to track rotation, applying matrix transformations, and smoothing sensor noise with a low‑pass filter.

3DAndroidMobile Development
0 likes · 14 min read
Implementing a Naked‑Eye 3D Effect on Android with OpenGL
OPPO Kernel Craftsman
OPPO Kernel Craftsman
Mar 26, 2021 · Fundamentals

Optical Fingerprint Sensors: Principles, Common Issues, and Gabor Filter Preprocessing

Optical fingerprint sensors capture ridge patterns via illuminated light through an under‑display lens, offering full‑screen designs but facing challenges like incomplete presses, lighting failures, and dirty or wet fingers, while Gabor filter preprocessing enhances image texture to improve recognition robustness and guide future hardware‑algorithm improvements.

AlgorithmGabor filterHardware
0 likes · 8 min read
Optical Fingerprint Sensors: Principles, Common Issues, and Gabor Filter Preprocessing