Enhancement of Degraded CCTV Footage for Forensic Analysis
Forensic analysis has proved to be one of the most utilitarian tool in investigating crime. Forensic analysis provides evidence/basic information of the said crime through analysis of physical evidence. In this paper, we present a scintillating technique
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Abstract Forensic analysis has proved to be one of the most utilitarian tool in investigating crime. Forensic analysis provides evidence/basic information of the said crime through analysis of physical evidence. In this paper, we present a scintillating technique to enhance the image quality of CCTV video to assist in the investigation of criminal cases. This paper, address the issue of lack of a budget surplus for a high-quality image/video capturing device. The problem of enhancing images is addressed by pure image processing methods and machine learning techniques. The paper analyzes both techniques and further concludes that the machine learning approach produces a more efficient result. The applications of this technique can range from simple image filtering/beautification to forensic image processing.
1 Introduction 1.1 CCTV Closed-circuit television (CCTV), also known as video surveillance, uses video cameras to transmit a signal to a specific place, onto a limited and specific set of monitors for surveillance. It differs from broadcast television in that the signal is not openly A. Vinay · A. Lokesh (B) · V. R. Kamath · K. N. B. Murty · S. Natarajan Center for Pattern Recognition and Machine Intelligence, PES University, Bengaluru, India e-mail: [email protected] A. Vinay e-mail: [email protected] V. R. Kamath e-mail: [email protected] K. N. B. Murty e-mail: [email protected] S. Natarajan e-mail: [email protected] © Springer Nature Singapore Pte Ltd. 2021 D. Gupta et al. (eds.), International Conference on Innovative Computing and Communications, Advances in Intelligent Systems and Computing 1165, https://doi.org/10.1007/978-981-15-5113-0_50
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transmitted, though it may employ point to point (P2P), point to multipoint (P2MP), or mesh wired or wireless links. Most video cameras fit this definition, and the term is most often applied to those used for surveillance in areas that mainly need monitoring such as banks, jewelry stores, hospital, and other areas where security is needed. Though video telephony is seldom called ‘CCTV,’ one exception is the use of video in distance education, where it is an important tool.
1.2 Image Enhancement Image enhancement is widely used in computer graphics. It is a subarea of image processing. The principle objective of image enhancement techniques is to process an image so that the resulting image is more suitable than the original image for a specific application. The main techniques involve either spatial or frequency domain enhancement.
1.3 Forensic Analysis Forensic analysis refers to a detailed investigation documenting the course, reason culprits, and the identifying the tools of the crime. Forensic analysis relies on evidence in the form of audio, video/image, electronic, or written material. Police investigators from across the globe have relied heavily on video/image evidence as it also an evidence for court trials. The digital video or audio evidence is proprietary in nature and requires special software to en
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