This paper delves into the crucial realm of posture assessment in contemporary work environments. The introduction underscores the increasing need for posture correction tools, particularly for individuals engrossed in sedentary jobs, who often overlook their anthropological constraints during work. Sedentary work, exceeding eight hours daily, is not only detrimental to health but can result in Work-Related Musculoskeletal Disorders (WMSDs) like Carpal Tunnel Syndrome, lower back pain, and cervical spondylitis. Ergonomics plays a pivotal role in assessing the well-being of working individuals. Methods such as REBA and RULA are commonly used to evaluate posture, although these methods demand manual readings conducted at various intervals. Different work environments require distinct assessment scores, making them intricate and time-consuming. For industries with dynamic working conditions such as mining, plumbing, construction, logistics, and maintenance, 3D posture recognition proves effective. This ergonomic approach, combined with manual assessment, enhances worker safety and productivity. Conversely, an increasing number of individuals lead sedentary lifestyles due to their profession, typified by prolonged computer use, desk work, and limited physical activity. These behaviours lead to a host of health issues, both physical and psychological. Moreover, the omnipresence of smartphones and attention-diverting content have extended the average time people spend sitting or lying down, causing long-term health problems, including cardiovascular diseases, vitamin deficiencies, and migraines, compounded by the persistence of WMSDs. In the subsequent sections, this paper delves into the advancements in posture assessment techniques. With camera various pose estimation techniques with AI models table, categorizing them by year invented, model name, strengths, weaknesses, applicability to single or multiple persons, and whether they operate in 2D or 3D space. These advancements represent innovative and efficient methods for assessing posture, making it a valuable resource for researchers, ergonomists, and individuals aiming to enhance their work environments and overall health.