Fig. 1. Relationship between focal power of tumor lesion tissue and viewpoint spacing

Fig. 2. Numerical simulation of free-form surface optical characteristic channel of lesion tissue

Fig. 3. Three-dimensional numerical simulation of free-form surface optical channel lens and imaging surface of lesion tissue

Fig. 4. Free-form surface optical diagram of optical molecular image and CT image

Fig. 5. Processed three-dimensional data envelope of free-form surface lens and imaging surface of lesion tissue

Fig. 6. Mapping of free-form surface optical characteristic channel of lesion tissue

Fig. 7. Free-form surface optical coupling image of lesion tissue

Fig. 8. Signal-to-noise ratio of free-form surface optical image signal of lesion tissue

Fig. 9. Common image of lesion tissue

Fig. 10. Signal-to-noise ratio of common image of lesion tissue