The present invention relates to methods for providing a low-cost, non-invasive, high-fidelity breast cancer screening and early detection. The said includes a process by which breasts are prepared for thermal imaging by cooling the breast surface. Next, digital images are captured using an infrared thermal imaging camera. Digital image processing allows for identification of suspicious vascular activity. The probability of detection of similar size tumors, or equivalently tumors which are smaller and/or buried deeper under breast surface, is further increased by of applying inverse thermal conduction algorithms to digital images. Thermal infrared images are taken over time to build temporal statistics, which further increase the probability of correct early detection of smaller and deeper breast tumors.