To improve the quality of light field images,this study evaluates the influence of low-bit linear quantized depth maps on rendering accuracy and lighting performance.A region-based quantization approach for light field image rendering is proposed.By introducing a light cone for each pixel and adjusting its parameters,precise control over illumination range and effect is achieved,thereby minimizing the impact of quantization errors on rendering precision and lighting quality.Furthermore,multi-view light field fusion is employed to reduce image artifacts and enhance rendering fidelity,enabling image-based anisotropic lighting effects.A light field display system based on integral imaging technology is developed,which successfully reconstructs three-dimensional (3D) images with adjustable lighting in 3D space,validating the effectiveness of the proposed method.This work offers a valuable reference for acquiring and generating high-quality light field images,with promising applications in virtual reality,augmented reality,and related fields.